Signal processing circuit, method and device, electronic equipment and medium

Abstract

The invention relates to a signal processing circuit, method and device, electronic equipment and a medium. The signal processing circuit comprises an adjusting circuit, the input end of the adjusting circuit is used for receiving a first signal, and the first signal is related to a second signal transmitted to an antenna by a radio frequency circuit in the electronic equipment; the first input end of the signal superposition circuit is coupled with a functional circuit in the electronic equipment, the second input end of the signal superposition circuit is coupled with the output end of the adjusting circuit, and the output end of the signal superposition circuit is coupled with a control circuit in the electronic equipment; wherein the adjusting circuit is used for adjusting the first signal to obtain a third signal, and the third signal is used for compensating a noise signal generated by the antenna to the functional circuit. The adjusting circuit outputs the third signal to compensate the noise signal, and the signal received by the control circuit does not contain the noise signal generated by antenna radiation, so that the function of the electronic equipment is normal, and the reliability of the electronic equipment is improved.

Description

Technical Field

[0001] This disclosure relates to the field of signal processing technology, and in particular to a signal processing circuit, method, apparatus, electronic device, and medium. Background Technology

[0002] During wireless communication, electronic devices transmit radio frequency (RF) signals to an antenna, which then radiates these signals. However, during this radiation process, interference can occur in the functional circuitry of the electronic device, causing malfunctions and leading to unreliability. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a signal processing circuit, method, apparatus, electronic device, and medium.

[0004] According to a first aspect of this disclosure, a signal processing circuit is provided, the signal processing circuit comprising:

[0005] An adjustment circuit, wherein the input terminal of the adjustment circuit is used to receive a first signal, the first signal being related to a second signal transmitted to the antenna by the radio frequency circuit in the electronic device;

[0006] A signal superposition circuit, wherein the first input terminal of the signal superposition circuit is coupled to a functional circuit in the electronic device, the second input terminal of the signal superposition circuit is coupled to the output terminal of the adjustment circuit, and the output terminal of the signal superposition circuit is coupled to a control circuit in the electronic device;

[0007] The adjustment circuit is used to adjust the first signal to obtain a third signal, and the third signal is used to compensate for the noise signal generated by the antenna on the functional circuit.

[0008] In some embodiments of this disclosure, the adjustment circuit includes:

[0009] An attenuator, wherein the input terminal of the attenuator is used to receive the first signal, and the attenuator is used to adjust the amplitude of the first signal;

[0010] A phase shifter, the input of which is coupled to the output of the attenuator, and the output of which is coupled to the second input of the signal superposition circuit, wherein the phase shifter is used to adjust the phase of the first signal.

[0011] In some embodiments of this disclosure, the first signal and the second signal are the same; or, the amplitude of the first signal is less than the amplitude of the second signal.

[0012] In some embodiments of this disclosure, the signal processing circuit further includes:

[0013] A signal separation circuit is provided, wherein the input terminal of the signal separation circuit is coupled to the output terminal of the radio frequency circuit, the first output terminal of the signal separation circuit is coupled to the antenna, and the second output terminal of the signal separation circuit is coupled to the input terminal of the adjustment circuit. The signal separation circuit is used to separate the fourth signal output by the radio frequency circuit into the first signal and the second signal.

[0014] In some embodiments of this disclosure, the signal processing circuit further includes:

[0015] A delay circuit is coupled between the first output terminal of the signal separation circuit and the antenna.

[0016] In some embodiments of this disclosure, the signal superposition circuit includes a combiner; and / or, the signal separation circuit includes a power divider; and / or, the delay circuit includes a slow wave generator.

[0017] According to a second aspect of this disclosure, a signal processing method is provided, the signal processing method comprising:

[0018] A first isolation degree is determined between a first signal line and a second signal line, wherein the first signal line is used to transmit a second signal output by the radio frequency circuit to the antenna, and the second signal line is used to transmit a fifth signal output by the functional circuit.

[0019] Receive a first signal associated with the second signal;

[0020] A third signal is generated based on the first signal and the first isolation level;

[0021] The signal obtained by superimposing the third signal and the fifth signal is output.

[0022] In some embodiments of this disclosure, before generating the third signal based on the first signal and the first isolation degree, the signal processing method further includes:

[0023] Determine the second signal;

[0024] The step of generating a third signal based on the first signal and the first isolation degree includes:

[0025] Based on the second signal and the first isolation, the amplitude and phase of the first signal are adjusted to generate the third signal;

[0026] The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

[0027] In some embodiments of this disclosure, when the first signal and the second signal are the same, the second isolation degree between the third signal line and the fourth signal line is the same as the first isolation degree, the third signal line is used to transmit the first signal, and the fourth signal line is used to transmit the third signal; generating the third signal based on the first signal and the first isolation degree includes:

[0028] Based on the first isolation degree, the amplitude and phase of the first signal are adjusted to generate the third signal;

[0029] The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

[0030] In some embodiments of this disclosure, determining the first isolation degree between the first signal line and the second signal line includes:

[0031] Determine the first sub-isolation of the first signal line;

[0032] Determine the second sub-isolation of the second signal line;

[0033] The first isolation degree is determined based on the first sub-isolation degree and the second sub-isolation degree; or,

[0034] The control circuit sends empty data.

[0035] Acquire the sixth signal received by the functional circuit and the seventh signal input to the antenna;

[0036] The first isolation degree is determined based on the sixth signal and the seventh signal.

[0037] In some embodiments of this disclosure, before receiving the first signal associated with the second signal, the signal processing method further includes:

[0038] Receive the fourth signal output by the radio frequency circuit;

[0039] The fourth signal is separated into the first signal and the second signal.

[0040] In some embodiments of this disclosure, before outputting the signal obtained by superimposing the third signal and the fifth signal, the signal processing method further includes:

[0041] The second signal is transmitted to the antenna after a delay.

[0042] According to a third aspect of this disclosure, a signal processing apparatus is provided, the signal processing apparatus comprising:

[0043] A determining module is configured to determine a first isolation degree between a first signal line and a second signal line, wherein the first signal line is used to transmit a second signal output by the radio frequency circuit to the antenna, and the second signal line is used to transmit a fifth signal output by the functional circuit.

[0044] A receiving module, the receiving module being configured to receive a first signal associated with the second signal;

[0045] A generation module, configured to generate a third signal based on the first signal and the first isolation degree;

[0046] The superposition module is configured to output a signal obtained by superimposing the third signal and the fifth signal.

[0047] According to a fourth aspect of this disclosure, an electronic device is provided, the electronic device comprising the signal processing circuit described above; or,

[0048] processor;

[0049] Memory used to store the processor's executable instructions;

[0050] The processor is configured to execute the signal processing method described above.

[0051] According to a fifth aspect of this disclosure, a non-transitory computer-readable storage medium is provided, wherein when instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to perform the signal processing method described above.

[0052] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0053] The signal processing circuit includes an adjustment circuit and a signal superposition circuit, which are coupled together. The adjustment circuit adjusts a first signal related to a second signal to obtain a third signal, and outputs the third signal to the signal superposition circuit. The signal superposition circuit superimposes the third signal and the signal output from the functional circuit, and outputs the superimposed signal to the control circuit. This superposition compensates for noise signals generated by antenna radiation in the signal output from the functional circuit. By using the third signal output by the adjustment circuit to compensate for noise signals, the signal received by the control circuit does not contain noise signals generated by antenna radiation, ensuring the normal functioning of the electronic equipment and improving its reliability.

[0054] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0056] Figure 1 This is a schematic diagram of the structure of a signal processing circuit provided in an exemplary embodiment of the present disclosure;

[0057] Figure 2 This is a schematic diagram of the structure of a signal processing circuit provided in another exemplary embodiment of this disclosure;

[0058] Figure 3 This is a schematic diagram of the structure of a signal processing circuit provided in another exemplary embodiment of this disclosure;

[0059] Figure 4 This is a schematic diagram of the structure of a signal processing circuit provided in another exemplary embodiment of this disclosure;

[0060] Figure 5 This is a schematic flowchart of a signal processing method provided in an exemplary embodiment of this disclosure;

[0061] Figure 6 This is a schematic flowchart of a signal processing method provided in another exemplary embodiment of this disclosure;

[0062] Figure 7 This is a schematic flowchart of a signal processing method provided in another exemplary embodiment of this disclosure;

[0063] Figure 8 This is a block diagram of a signal processing apparatus provided in an exemplary embodiment of the present disclosure;

[0064] Figure 9 This is a block diagram of an electronic device provided in an exemplary embodiment of the present disclosure.

[0065] In the picture:

[0066] 10-Adjustment circuit; 11-Attenuator; 12-Phase shifter; 20-Signal superposition circuit; 21-Combiner; 30-RF circuit; 40-Antenna; 50-Functional circuit; 60-Control circuit; 70-Signal separation circuit; 71-Power divider; 80-Delay circuit; 81-Slowwave converter; 100-Determining module; 150-Receiving module; 200-Generation module; 250-Superposition module; 400-Cleanup equipment; 402-Processing component; 404-Memory; 406-Power supply component; 408-Multimedia component; 410-Audio component; 412-Input / output interface; 414-Sensor component; 416-Communication component; 420-Processor; P1-First signal; P2-Second signal; C-Third signal; N-Noise signal; D-Valid digital signal. Detailed Implementation

[0067] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0068] Electronic devices, as wireless communication devices, possess a variety of functions and have become indispensable in people's daily lives. For example, electronic devices can display images through display circuits, capture images through camera circuits, and play audio through audio circuits. During wireless communication, the radio frequency (RF) circuit of an electronic device emits RF signals to an antenna, which then radiates these signals. Due to the compact stacking of components within the electronic device, the functional circuits receive noise signals generated by the antenna radiation. During signal transmission between the functional circuits and the control circuit, the control circuit receives these noise signals, causing malfunctions in the electronic device. For example, the camera function may experience lag, or the screen of the electronic device may display distorted images.

[0069] In related technologies, an anti-interference structure is provided, in which electromagnetic interference (EMI) shielding films are placed on both sides of a flexible printed circuit (FPC) used to connect functional circuits and control circuits to suppress noise signals radiated by the antenna. However, because the flexible circuit board needs to be bent and twisted, the number of grounding points and the grounding area of ​​the EMI shielding film are small, resulting in a weakened noise signal suppression effect. Furthermore, since the EMI shielding film cannot be reliably connected at the ends of the flexible circuit board, some areas of the flexible circuit board are exposed, further weakening the noise signal suppression effect. During the process of the antenna radiating radio frequency signals, the functional circuits in the electronic device can still be interfered with, causing abnormal operation of the electronic device and leading to unreliability issues.

[0070] Based on this, this disclosure provides a signal processing circuit. An adjustment circuit actively adjusts a first signal related to a second signal to obtain a third signal. A signal superposition circuit superimposes the third signal and the signal output from the functional circuit, and outputs the superimposed signal to the control circuit, ensuring that the signal received by the control circuit does not contain noise signals generated by antenna radiation. By adaptively compensating for noise signals through the adjustment circuit and the signal superposition circuit, the control circuit is unaffected by antenna radiation, ensuring the normal functioning of the electronic equipment and thus improving the reliability of the electronic equipment.

[0071] An exemplary embodiment of this disclosure provides a signal processing circuit, such as Figure 1 As shown, the signal processing circuit includes an adjustment circuit 10 and a signal superposition circuit 20. The input terminal of the adjustment circuit 10 receives a first signal P1, which is correlated with a second signal P2 transmitted from the radio frequency circuit 30 in the electronic device to the antenna 40. The first input terminal of the signal superposition circuit 20 is coupled to the functional circuit 50 in the electronic device, the second input terminal is coupled to the output terminal of the adjustment circuit 10, and the output terminal is coupled to the control circuit 60 in the electronic device. The adjustment circuit 10 is used to adjust the first signal P1 to obtain a third signal C, which is used to compensate for the noise signal N generated by the antenna 40 on the functional circuit 50.

[0072] In this embodiment, the signal processing circuit includes an adjustment circuit and a signal superposition circuit, with the adjustment circuit coupled to the signal superposition circuit. The adjustment circuit adjusts the first signal related to the second signal to obtain a third signal, and outputs the third signal to the signal superposition circuit. The signal superposition circuit outputs the superimposed signal of the third signal and the signal output by the functional circuit to the control circuit, so as to compensate for the noise signal generated by antenna radiation in the signal output by the functional circuit through the third signal. By compensating for the noise signal by outputting the third signal from the adjustment circuit, the signal received by the control circuit does not contain the noise signal generated by antenna radiation, thus enabling the electronic device to function normally and improving the reliability of the electronic device.

[0073] In one embodiment, such as Figure 2 As shown, the adjustment circuit 10 includes an attenuator 11 and a phase shifter 12. The input terminal of the attenuator 11 is used to receive a first signal P1 and to adjust the amplitude of the first signal P1. The input terminal of the phase shifter 12 is coupled to the output terminal of the attenuator 11, and the output terminal is coupled to the second input terminal of the signal superposition circuit 20, and is used to adjust the phase of the first signal P1.

[0074] In this embodiment, since the first and second signals are correlated, the amplitude of the first signal is adjusted by an attenuator so that the amplitude of the signal output by the attenuator is the same as the amplitude of the noise signal. The phase of the first signal is adjusted by a phase shifter so that the phase of the signal output by the phase shifter is opposite to the phase of the noise signal. By adjusting the amplitude and phase of the first signal through the attenuator and phase shifter, a third signal is obtained. The third signal is out of phase with the noise signal to compensate for the noise signal, so that the control circuit is not affected by antenna radiation, thereby improving the reliability of the electronic equipment.

[0075] In one embodiment, the first signal P1 and the second signal P2 are the same.

[0076] In this embodiment, since the first signal and the second signal are identical, the third signal only needs to compensate for the noise signal by ensuring that the first isolation degree between the first signal line coupled to the RF circuit and the antenna and the second signal line coupled to the functional circuit and the signal superposition circuit are the same as the transmission response of the adjustment circuit, which serves as the second isolation degree. By making the first signal and the second signal identical, it is easier to determine the transmission response of the adjustment circuit, thereby reducing the complexity of the adjustment circuit design and consequently reducing the complexity of the signal processing circuit design.

[0077] In one embodiment, the amplitude of the first signal P1 is smaller than the amplitude of the second signal P2. The phase of the first signal P1 is the same as the phase of the second signal P2.

[0078] In this embodiment, since the first and second signals are related and both are provided by the radio frequency (RF) circuit, and the amplitude of the noise signal is smaller than the amplitude of the second signal, the smaller amplitude of the first signal compared to the second signal reduces the RF power output by the RF circuit. By reducing the power output of the RF circuit, the adjustment circuit needs to reduce the amplitude of the first signal less, thereby reducing the power consumption of the signal processing circuit.

[0079] For example, functional circuit 50 can be a circuit in an electronic device that transmits high-speed digital signals, such as a camera circuit, display circuit, or audio circuit. Control circuit 60 can include a processor in the electronic device.

[0080] In one embodiment, such as Figure 3 As shown, the signal processing circuit also includes a signal separation circuit 70. The input terminal of the signal separation circuit 70 is coupled to the output terminal of the radio frequency circuit 30, the first output terminal is coupled to the antenna 40, and the second output terminal is coupled to the input terminal of the adjustment circuit 10, for separating the fourth signal output by the radio frequency circuit 30 into a first signal P1 and a second signal P2.

[0081] In this embodiment, the fourth signal output from the radio frequency circuit is separated by a signal separation circuit, allowing the first and second signals to be correlated for adjustment of the first signal, thereby reducing the complexity of the signal processing circuit structure. Simultaneously, separating the fourth signal output from the radio frequency circuit by the signal separation circuit compensates for noise signals without affecting the antenna's radio frequency signal radiation, thus improving the reliability of the signal processing circuit.

[0082] In one embodiment, the signal processing circuit further includes a delay circuit 80. The delay circuit 80 is coupled between the first output of the signal separation circuit 70 and the antenna 40.

[0083] In this embodiment, by delaying the second signal through a delay circuit, the noise signal can be synchronized with the third signal so that the noise signal can be compensated by the third signal, thereby improving the reliability of the signal processing circuit.

[0084] In one embodiment, the signal superposition circuit 20 includes a combiner.

[0085] In this embodiment, the third signal and the signal output from the functional circuit are superimposed by a combiner and output to the control circuit. The signal synthesis speed is fast and the circuit structure is simple, thereby improving the efficiency of the signal processing circuit and reducing the complexity of the signal processing circuit structure.

[0086] In one embodiment, the signal separation circuit 70 includes a power divider.

[0087] In this embodiment, the fourth signal is separated into the first signal and the second signal by a power divider. The signal separation speed is fast and the circuit structure is simple, thereby improving the efficiency of the signal processing circuit and reducing the complexity of the signal processing circuit structure.

[0088] In one embodiment, the delay circuit 80 includes a slowwave converter.

[0089] In this embodiment, the second signal is delayed by a slow wave generator, which simplifies the circuit structure and reduces the complexity of the signal processing circuit.

[0090] An exemplary embodiment of this disclosure provides a signal processing circuit, such as Figure 4As shown, the signal processing circuit includes an attenuator 11, a phase shifter 12, a combiner 21, a power divider 71, and a slowwave converter 81. The input terminal of the power divider 71 is coupled to the output terminal of the RF circuit 30, its first output terminal is coupled to the input terminal of the slowwave converter 81, and its second output terminal is coupled to the input terminal of the attenuator 11. The output terminal of the slowwave converter 81 is coupled to the antenna 40. The output terminal of the attenuator 11 is coupled to the input terminal of the phase shifter 12. The output terminal of the phase shifter 12 is coupled to the first input terminal of the combiner 21. The second input terminal of the combiner 21 is coupled to the functional circuit 50, and its output terminal is coupled to the control circuit 60. The RF circuit 30 outputs a fourth signal to the power divider 71. The power divider 71 separates the fourth signal into a first signal P1 and a second signal P2, transmitting the first signal P1 to the attenuator 11 and the second signal P2 to the slowwave converter 81. The slow-wave converter 81 delays the second signal P2 before transmitting it to the antenna 40. The attenuator 11 and phase shifter 12 adjust the amplitude and phase of the first signal P1 to obtain the third signal C, which is then output to the combiner 21. The functional circuit 50 outputs a fifth signal to the combiner 21, which includes a valid digital signal D and a noise signal N. The combiner 21 superimposes the third signal C and the fifth signal, canceling out the noise signal N, and outputs the valid digital signal D to the control circuit 60. By using the attenuator 11 and phase shifter 12 to output the third signal C, which compensates for the noise signal N, the valid digital signal D received by the control circuit 60 does not contain the noise signal N radiated by the antenna 40, ensuring the normal functioning of the electronic equipment and improving its reliability.

[0091] An exemplary embodiment of this disclosure provides a signal processing method, which can be applied, for example, to the circuit structure described above, such as... Figure 5 As shown, the signal processing methods include:

[0092] S100. Determine the first isolation degree between the first signal line and the second signal line. The first signal line is used to transmit the second signal output by the radio frequency circuit to the antenna, and the second signal line is used to transmit the fifth signal output by the functional circuit.

[0093] S200, Receive the first signal related to the second signal.

[0094] S300: Generate a third signal based on the first signal and the first isolation level.

[0095] S400: Output the signal obtained by superimposing the third and fifth signals.

[0096] In this embodiment, a first isolation degree is determined between the first signal line and the second signal line to determine the radiated coupling strength between the antenna and the functional circuit. A first signal is received to obtain a signal related to the second signal transmitted from the radio frequency circuit to the antenna. Based on the first signal and the first isolation degree, an adjusted third signal is generated to compensate for noise signals. The signal obtained by superimposing the third signal and the fifth signal is output so that the output signal does not contain noise signals. By adaptively generating the third signal to compensate for noise signals, the output signal does not contain noise signals generated by antenna radiation, thus ensuring the normal functioning of the electronic device and improving the reliability of the electronic device.

[0097] In one embodiment, such as Figure 6 As shown, the first isolation degree between the first signal line and the second signal line in step S100 can be determined in the following way:

[0098] S110, Determine the first sub-isolation of the first signal line.

[0099] S120, Determine the second sub-isolation of the second signal line.

[0100] S130. Determine the first isolation degree based on the first sub-isolation degree and the second sub-isolation degree.

[0101] In this embodiment, the first isolation degree is determined by determining the first sub-isolation degree and the second sub-isolation degree. The determination of the first isolation degree is quick and accurate, thereby improving the reliability of signal processing.

[0102] In one embodiment, the determination of the first isolation degree between the first signal line and the second signal line in step S100 can also be determined in the following manner:

[0103] The control function circuit sends empty data.

[0104] The sixth signal received by the acquisition function circuit and the seventh signal input to the antenna are obtained.

[0105] The first isolation level is determined based on the sixth and seventh signals.

[0106] In this embodiment, the control function circuit sends empty data to avoid interference with the signal output by the function circuit when the first isolation degree is determined. Since the antenna and the function circuit are coupled to each other, the sixth signal received by the function circuit and the seventh signal input to the antenna are acquired. Based on the sixth and seventh signals, and considering the coupling between the antenna and the function circuit, the first isolation degree is determined. By combining the sixth and seventh signals to determine the first isolation degree, there is no need to detect the first and second sub-isolation degrees, thereby reducing the complexity of signal processing.

[0107] In one embodiment, before generating the third signal based on the first signal and the first isolation degree in step S300, the signal processing method further includes:

[0108] Identify the second signal.

[0109] The generation of the third signal based on the first signal and the first isolation in step S300 can be determined in the following way:

[0110] Based on the second signal and the first isolation, the amplitude and phase of the first signal are adjusted to generate the third signal.

[0111] The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

[0112] In this embodiment, a second signal is determined, and a noise signal is determined based on the second signal and a first isolation degree. The amplitude and phase of the first signal are adjusted based on the noise signal determined by the second signal and the first isolation degree to generate a third signal with the same amplitude but opposite phase to the noise signal. By adjusting the first signal in conjunction with the second signal and the first isolation degree, the third signal can accurately compensate for the noise signal, thereby improving the reliability of signal processing.

[0113] For example, the step of adjusting the amplitude and phase of the first signal based on the second signal and the first isolation to generate the third signal can be achieved by multiplying the second signal and the first isolation to obtain a noise signal. The amplitude and phase of the first signal are then adjusted based on the noise signal to generate the third signal.

[0114] In one embodiment, when the first signal and the second signal are the same, the second isolation degree between the third signal line and the fourth signal line is the same as the first isolation degree. The third signal line is used to transmit the first signal, and the fourth signal line is used to transmit the third signal. The generation of the third signal based on the first signal and the first isolation degree in step S300 can also be determined in the following way:

[0115] Based on the first isolation level, the amplitude and phase of the first signal are adjusted to generate the third signal.

[0116] The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

[0117] In this embodiment, since the first signal and the second signal are identical, the first isolation degree and the second isolation degree are also identical. Since the ratio of the third signal to the first signal represents the transmission response, and the transmission response is the same as the second isolation degree, the third signal can be generated by adjusting the first signal only according to the first isolation degree. By adjusting the first signal according to the first isolation degree, the third signal can accurately compensate for noise signals without needing to determine the second signal, thereby improving the reliability of signal processing and reducing its complexity.

[0118] In one embodiment, before receiving the first signal related to the second signal in step S200, the signal processing method further includes:

[0119] The fourth signal is received from the radio frequency circuit.

[0120] The fourth signal is separated into the first signal and the second signal.

[0121] In this embodiment, by receiving the fourth signal output from the radio frequency circuit and separating it into a first signal and a second signal, and then correlating the first and second signals to adjust the first signal, the complexity of signal processing is reduced. Simultaneously, by separating the fourth signal output from the radio frequency circuit, noise signals are compensated without affecting the antenna's radio frequency signal radiation, thereby improving the reliability of signal processing.

[0122] In one embodiment, before outputting the signal obtained by superimposing the third and fifth signals in step S400, the signal processing method further includes:

[0123] The second signal is transmitted to the antenna after a delay.

[0124] In this embodiment, by delaying the second signal, the noise signal can be synchronized with the third signal to compensate for the noise signal through the third signal, thereby improving the reliability of signal processing.

[0125] For example, the signal output after superimposing the third signal and the fifth signal in step S400 can be output to a circuit such as a control circuit that requires the transmission of signals by a functional circuit.

[0126] An exemplary embodiment of this disclosure provides a signal processing method, such as... Figure 7 As shown, the signal processing methods include:

[0127] S500, Determine the first sub-isolation of the first signal line.

[0128] S510, Determine the second sub-isolation of the second signal line.

[0129] S520. Determine the first isolation degree based on the first sub-isolation degree and the second sub-isolation degree.

[0130] S530 receives the fourth signal output from the radio frequency circuit.

[0131] S540, Separate the fourth signal into the first signal and the second signal.

[0132] S550: Based on the second signal and the first isolation, adjust the amplitude and phase of the first signal to generate the third signal.

[0133] S560, the second signal is delayed and then transmitted to the antenna.

[0134] S570: Output the signal obtained by superimposing the third and fifth signals to the control circuit.

[0135] In this embodiment, a first sub-isolation of the first signal line and a second sub-isolation of the second signal line are determined. Based on the first and second sub-isolation, a first isolation is determined to reduce the time required to determine the first isolation. A fourth signal output from the radio frequency circuit is received and separated into a first signal and a second signal. A noise signal is determined based on the first isolation and the second signal. The amplitude and phase of the first signal are adjusted according to the noise signal to generate a third signal. The second signal is delayed and then output to the antenna to synchronize the noise signal with the third signal. The signal resulting from the superposition of the third and fifth signals is output to the control circuit to compensate for the noise signal, ensuring that the effective digital signal received by the control circuit does not contain the noise signal. By adaptively generating the third signal to compensate for the noise signal, the output signal does not contain the noise signal generated by the antenna radiation, thus ensuring the normal functioning of the electronic device and improving the reliability of the electronic device.

[0136] In one exemplary embodiment, a signal processing apparatus is provided for implementing the method described above. (Reference) Figure 8 As shown, the signal processing device may include a determining module 100, a receiving module 150, a generating module 200, and a superposition module 250. During the implementation of the above method,

[0137] The determination module 100 is configured to determine a first isolation degree between the first signal line and the second signal line.

[0138] The receiving module 150 is configured to receive a first signal associated with the second signal.

[0139] The generation module 200 is configured to generate a third signal based on the first signal and the first isolation degree.

[0140] The superposition module 250 is configured to output a signal after superimposing the third signal and the fifth signal.

[0141] In one exemplary embodiment, a signal processing apparatus is provided, wherein a determining module 100 is configured to:

[0142] Determine the first sub-isolation of the first signal line.

[0143] Determine the second sub-isolation of the second signal line.

[0144] The first isolation degree is determined based on the first sub-isolation degree and the second sub-isolation degree.

[0145] In one exemplary embodiment, a signal processing apparatus is provided, wherein a determining module 100 is configured to:

[0146] The control function circuit sends empty data.

[0147] The sixth signal received by the acquisition function circuit and the seventh signal input to the antenna are obtained.

[0148] The first isolation level is determined based on the sixth and seventh signals.

[0149] In one exemplary embodiment, a signal processing apparatus is provided, wherein a determining module 100 is configured to:

[0150] Identify the second signal.

[0151] In one exemplary embodiment, a signal processing apparatus is provided, wherein a generation module 200 is configured to:

[0152] Based on the second signal and the first isolation, the amplitude and phase of the first signal are adjusted to generate the third signal.

[0153] In one exemplary embodiment, a signal processing apparatus is provided, wherein a generation module 200 is configured to:

[0154] Based on the first isolation level, the amplitude and phase of the first signal are adjusted to generate the third signal.

[0155] In one exemplary embodiment, a signal processing apparatus is provided, the apparatus further comprising:

[0156] The separation module is configured to receive a fourth signal output from the radio frequency circuit.

[0157] The fourth signal is separated into the first signal and the second signal.

[0158] In one exemplary embodiment, a signal processing apparatus is provided, the apparatus further comprising:

[0159] The delay module is configured to delay the transmission of the second signal to the antenna.

[0160] In one exemplary embodiment, an electronic device is provided, such as a mobile phone, a laptop computer, a tablet computer, and a wearable device.

[0161] refer to Figure 9 As shown, the electronic device 400 may include one or more of the following components: processing component 402, memory 404, power supply component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0162] Processing component 402 typically controls the overall operation of electronic device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0163] Memory 404 is configured to store various types of data to support the operation of electronic device 400. Examples of this data include instructions for any application or method operating on electronic device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0164] Power supply component 406 provides power to various components of electronic device 400. Power supply component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 400.

[0165] Multimedia component 408 includes a screen that provides an output interface between electronic device 400 and user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera module and / or a rear-facing camera module. When electronic device 400 is in an operating mode, such as shooting mode or video mode, the front-facing camera module and / or rear-facing camera module may receive external multimedia data. Each front-facing camera module and rear-facing camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0166] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when electronic device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0167] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0168] Sensor assembly 414 includes one or more sensors for providing state assessments of various aspects of electronic device 400. For example, sensor assembly 414 may detect the on / off state of electronic device 400, the relative positioning of components such as the display and keypad of electronic device 400, changes in position of electronic device 400 or a component of electronic device 400, the presence or absence of user contact with electronic device 400, orientation or acceleration / deceleration of electronic device 400, and temperature changes of electronic device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0169] Communication component 416 is configured to facilitate wired or wireless communication between electronic device 400 and other terminals. Electronic device 400 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0170] In an exemplary embodiment, the electronic device 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0171] In one exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of an electronic device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage terminal, etc. When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the method shown in the above embodiments.

[0172] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0173] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0174] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0175] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A signal processing circuit, characterized in that, The signal processing circuit includes: An adjustment circuit, wherein the input terminal of the adjustment circuit is used to receive a first signal, the first signal being related to a second signal transmitted to the antenna by the radio frequency circuit in the electronic device; A signal superposition circuit, wherein the first input terminal of the signal superposition circuit is coupled to a functional circuit in the electronic device, the second input terminal of the signal superposition circuit is coupled to the output terminal of the adjustment circuit, and the output terminal of the signal superposition circuit is coupled to a control circuit in the electronic device; The adjustment circuit is used to adjust the first signal to obtain a third signal, and the third signal is used to compensate for the noise signal generated by the antenna on the functional circuit.

2. The signal processing circuit according to claim 1, characterized in that, The regulating circuit includes: An attenuator, wherein the input terminal of the attenuator is used to receive the first signal, and the attenuator is used to adjust the amplitude of the first signal; A phase shifter, the input of which is coupled to the output of the attenuator, and the output of which is coupled to the second input of the signal superposition circuit, wherein the phase shifter is used to adjust the phase of the first signal.

3. The signal processing circuit according to claim 1, characterized in that, The first signal and the second signal are the same; or, the amplitude of the first signal is less than the amplitude of the second signal.

4. The signal processing circuit according to any one of claims 1 to 3, characterized in that, The signal processing circuit further includes: A signal separation circuit is provided, wherein the input terminal of the signal separation circuit is coupled to the output terminal of the radio frequency circuit, the first output terminal of the signal separation circuit is coupled to the antenna, and the second output terminal of the signal separation circuit is coupled to the input terminal of the adjustment circuit. The signal separation circuit is used to separate the fourth signal output by the radio frequency circuit into the first signal and the second signal.

5. The signal processing circuit according to claim 4, characterized in that, The signal processing circuit further includes: A delay circuit is coupled between the first output terminal of the signal separation circuit and the antenna.

6. The signal processing circuit according to claim 5, characterized in that, The signal superposition circuit includes a combiner; and / or, the signal separation circuit includes a power divider; and / or, the delay circuit includes a slow wave generator.

7. A signal processing method, characterized in that, The signal processing method includes: A first isolation degree is determined between a first signal line and a second signal line, wherein the first signal line is used to transmit a second signal output by the radio frequency circuit to the antenna, and the second signal line is used to transmit a fifth signal output by the functional circuit. Receive a first signal associated with the second signal; A third signal is generated based on the first signal and the first isolation level; The signal obtained by superimposing the third signal and the fifth signal is output.

8. The signal processing method according to claim 7, characterized in that, Before generating the third signal based on the first signal and the first isolation degree, the signal processing method further includes: Determine the second signal; The step of generating a third signal based on the first signal and the first isolation degree includes: Based on the second signal and the first isolation, the amplitude and phase of the first signal are adjusted to generate the third signal; The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

9. The signal processing method according to claim 7, characterized in that, When the first signal and the second signal are the same, the second isolation between the third signal line and the fourth signal line is the same as the first isolation. The third signal line is used to transmit the first signal, and the fourth signal line is used to transmit the third signal. The step of generating a third signal based on the first signal and the first isolation degree includes: Based on the first isolation degree, the amplitude and phase of the first signal are adjusted to generate the third signal; The third signal has the same amplitude but opposite phase as the noise signal generated by the antenna in the functional circuit.

10. The signal processing method according to claim 7, characterized in that, Determining the first isolation degree between the first signal line and the second signal line includes: Determine the first sub-isolation of the first signal line; Determine the second sub-isolation of the second signal line; The first isolation degree is determined based on the first sub-isolation degree and the second sub-isolation degree; or, The control circuit sends empty data. Acquire the sixth signal received by the functional circuit and the seventh signal input to the antenna; The first isolation degree is determined based on the sixth signal and the seventh signal.

11. The signal processing method according to any one of claims 7 to 10, characterized in that, Before receiving the first signal associated with the second signal, the signal processing method further includes: Receive the fourth signal output by the radio frequency circuit; The fourth signal is separated into the first signal and the second signal.

12. The signal processing method according to any one of claims 7 to 10, characterized in that, Before outputting the signal obtained by superimposing the third signal and the fifth signal, the signal processing method further includes: The second signal is transmitted to the antenna after a delay.

13. A signal processing apparatus, characterized in that, The signal processing device includes: A determining module is configured to determine a first isolation degree between a first signal line and a second signal line, wherein the first signal line is used to transmit a second signal output by the radio frequency circuit to the antenna, and the second signal line is used to transmit a fifth signal output by the functional circuit. A receiving module, the receiving module being configured to receive a first signal associated with the second signal; A generation module, configured to generate a third signal based on the first signal and the first isolation degree; The superposition module is configured to output a signal obtained by superimposing the third signal and the fifth signal.

14. An electronic device, characterized in that, The electronic device includes the signal processing circuit as described in any one of claims 1 to 6; or, processor; Memory used to store the processor's executable instructions; The processor is configured to perform the signal processing method as described in any one of claims 7 to 12.

15. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the signal processing method as described in any one of claims 7 to 12.

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