Data transmission device

Abstract

The invention provides a data transmission device for coupling a high-frequency signal to an organism. The data transmission device comprises a high-frequency signal modulator, a first resonant inductor, a high-frequency signal demodulator, a second resonant inductor, a first conductive structure and a second conductive structure. The first resonant inductor is electrically connected with the first output / input end and the second output / input end of the high-frequency signal modulator. The second resonant inductor is electrically connected with the third input / output end and the fourth input / output end of the high-frequency signal demodulator. The first conductor structure is electrically connected with the high-frequency signal modulator and the first resonant inductor. The second conductor structure is electrically connected with the high-frequency signal demodulator and the second resonant inductor. The high-frequency signal is electrically coupled to a first position on the surface of the living body through the first conductor structure and is electrically coupled to the second conductor structure through a second position on the surface of the living body.

Description

Technical Field

[0001] The present invention relates to the field of transmission devices, and in particular to a data transmission device. Background Art

[0002] The simple and fashionable wearing appearance and convenience of use make wireless headphones gradually become the standard equipment of mobile devices. In order to achieve the purpose of low-latency transmission of audio between two headphones, a near-field magnetic induction (NFMI) technology is proposed.

[0003] However, since NFMI technology uses magnetic field coupling in space to achieve signal transmission, the communication distance is strictly limited (for example, 20cm to 25cm). In addition, the transmitting surface of the transmitting coil and the receiving surface of the receiving coil must be coplanar or coaxial to produce a better data transmission effect. Therefore, the setting flexibility of NFMI's transmitter and receiver is reduced.

[0004] Therefore, it is necessary to design a new data transmission device to improve the above defects. Summary of the invention

[0005] The object of the present invention is to provide a data transmission device using a biological body as a transmission medium, wherein the data transmission process is relatively stable and instant.

[0006] To achieve the above object, the present invention provides a data transmission device for coupling a high-frequency signal to a biological body, comprising:

[0007] A high frequency signal modulator having a first input / output terminal and a second input / output terminal;

[0008] A first resonant inductor electrically connected to the first input / output terminal and the second input / output terminal;

[0009] A high frequency signal demodulator having a third output input terminal and a fourth output input terminal;

[0010] A second resonant inductor electrically connected to the third input / output terminal and the fourth input / output terminal;

[0011] A first conductor structure electrically connecting the high frequency signal modulator and the first resonant inductor; and

[0012] A second conductor structure electrically connecting the high frequency signal demodulator and the second resonant inductor;

[0013] The first conductor structure electrically couples the organism via a first position on the organism's surface and sends the high-frequency signal to the organism, and the second conductor structure electrically couples the organism via a second position on the organism's surface and receives the high-frequency signal from the organism.

[0014] Preferably, the data transmission device further comprises:

[0015] an analog-to-digital converter electrically connected to the high-frequency signal modulator; and

[0016] A digital-to-analog converter electrically connected to the high-frequency signal demodulator;

[0017] The analog-to-digital converter is used to convert the audio signal into a digital signal, the high-frequency signal modulator is used to convert the digital signal into the high-frequency signal, the high-frequency signal demodulator is used to convert the high-frequency signal into another digital signal, and the digital-to-analog converter is used to convert the other digital signal into another audio signal.

[0018] Preferably, the first conductor structure is fixed at the first position on the surface of the organism, and the second conductor structure is fixed at the second position on the surface of the organism; the area of ​​the area surrounded by the orthographic projection contours of the first conductor structure and the second conductor structure on the surface of the organism is greater than or equal to 25 mm 2 .

[0019] Preferably, the distances from the first conductor structure and the second conductor structure to the surface of the biological body are both greater than or equal to 0 and less than or equal to the maximum coupling distance, and the maximum coupling distance increases as the area surrounded by the positive projection contours of the first conductor structure and the second conductor structure on the surface of the biological body increases.

[0020] Preferably, the orthographic projection contours of the first conductor structure and the second conductor structure on the surface of the biological body include a circle, a rectangle or an ellipse;

[0021] The orthographic projections of the first conductor structure and the second conductor structure on the surface of the biological body both have holes.

[0022] Preferably, the first resonant inductor has a first end electrically connected to the first output-input end and a second end electrically connected to the second output-input end, the first end of the first resonant inductor is electrically connected to the first output-input end of the high-frequency signal modulator via a connecting wire, and the connection point between the first conductor structure and the connecting wire is located between the first output-input end and the first end.

[0023] Preferably, the first conductor structure is electrically connected to the first input / output terminal or the second input / output terminal of the high-frequency signal modulator via a connecting wire; and the connecting wire directly electrically contacts the first input / output terminal or the second input / output terminal of the high-frequency signal modulator.

[0024] Preferably, the first resonant inductor has a first end electrically connected to the first output-input end and a second end electrically connected to the second output-input end, the first conductor structure is electrically connected to the first end or the second end of the first resonant inductor via a connecting wire, and the connecting wire directly electrically contacts the first end or the second end of the first resonant inductor.

[0025] Preferably, the first resonant inductor and the second resonant inductor are both SMD type inductors.

[0026] Preferably, the data transmission device is a wireless headset for coupling high-frequency signals to a biological body; wherein the biological body is a human body.

[0027] Compared with the prior art, in the data transmission device provided by the present invention, the first conductor structure electrically connected to the high-frequency signal modulator and the first resonant inductor is suitable for coupling the high-frequency signal to the biological body through the first position on the biological body surface, and the high-frequency signal transmitted through the biological body is suitable for coupling from the second position on the biological body surface to the second conductor structure electrically connected to the high-frequency signal demodulator and the second resonant inductor. Accordingly, in the process of data transmission, in addition to not being interfered by wireless signals, the delay time of signal transmission can also be shortened, thereby improving the immediacy of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a data transmission device configured on a biological body according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 An enlarged schematic diagram of a local area where a data transmission device is arranged on a biological body;

[0030] Figure 3 yes Figure 1 A framework diagram of the data transmission device when it is running;

[0031] Figure 4 yes Figure 1 A cross-sectional schematic diagram of a data transmission device configured on a biological body;

[0032] Figure 5 is a distribution diagram of the maximum coupling distance between the conductor structure of the data transmission device of one embodiment of the present invention and the biological body versus the active area;

[0033] Figure 6 yes Figure 2 A schematic diagram of the structure of another embodiment of a transmitter and a receiver;

[0034] FIG. 7A to FIG. 7C is a schematic top view of a conductor structure according to some variant embodiments of the present invention;

[0035] FIG. 8A to FIG. 8D It is a schematic diagram of the structure of a transmitter according to some variant embodiments of the present invention. DETAILED DESCRIPTION

[0036] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0037] Certain words are used in the specification and claims to refer to specific components. Those with ordinary knowledge in the field should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but rather use differences in components' functions as the criteria for distinction. The term "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to".

[0038] Figure 1 FIG. 1 is a schematic diagram of a data transmission device configured on a biological body according to an embodiment of the present invention. Figure 2 yes Figure 1 An enlarged schematic diagram of a local area where a data transmission device is configured on a biological body. Figure 3 yes Figure 1 Block diagram of the data transmission device during operation. Figure 4 yes Figure 1 A cross-sectional schematic diagram of a data transmission device configured on a biological body. Figure 5 It is a distribution diagram of the maximum coupling distance between the conductor structure of the data transmission device and the biological body versus the active area according to one embodiment of the present invention. Figure 6 yes Figure 2 A schematic structural diagram of another implementation of a transmitter and a receiver. FIG. 7A to FIG. 7C 1 is a schematic top view of a conductor structure according to some variant embodiments of the present invention.

[0039] Please refer to Figure 1 and Figure 2The data transmission device 10 includes a transmitter TX and a receiver RX. The transmitter TX includes a high-frequency signal modulator HFM, a first resonant inductor RI1 and a first conductor structure CS1. The high-frequency signal modulator HFM has a first input / output terminal IO1 and a second input / output terminal IO2. The first resonant inductor RI1 is electrically connected to the first input / output terminal IO1 and the second input / output terminal IO2. The first conductor structure CS1 is electrically connected to the high-frequency signal modulator HFM and the first resonant inductor RI1.

[0040] Similarly, the receiver RX includes a high frequency signal demodulator HFDM, a second resonant inductor RI2 and a second conductor structure CS2. The high frequency signal demodulator HFDM has a third output-input terminal IO3 and a fourth output-input terminal IO4. The second resonant inductor RI2 is electrically connected to the third output-input terminal IO3 and the fourth output-input terminal IO4. The second conductor structure CS2 is electrically connected to the high frequency signal demodulator HFDM and the second resonant inductor RI2. The first resonant inductor RI1 and the second resonant inductor RI2 are, for example, SMD type inductors, but are not limited thereto.

[0041] In this embodiment, the data transmission device 10 is suitable for transmitting high-frequency signals using the biological body ORG as a transmission medium. In detail, the first conductor structure CS1 of the transmitter TX is suitable for electrically coupling the biological body ORG via a first position P1 on the biological body surface ORGs of the biological body ORG (e.g., the skin of the right arm of the human body). The second conductor structure CS2 of the receiver RX is suitable for electrically coupling the biological body ORG via a second position P2 on the biological body surface ORGs of the biological body ORG (e.g., the skin of the left calf of the human body).

[0042] The data transmission device 10 can send high-frequency signals to the biological body ORG via the electrical coupling relationship between the first conductor structure CS1 and the biological body surface ORGs, and can receive high-frequency signals from the biological body ORG via the electrical coupling relationship between the second conductor structure CS2 and the biological body surface ORGs.

[0043] Please refer to Figure 2 and Figure 3 In this embodiment, the data transmission device 10 may also selectively include an analog-to-digital converter ADC and a digital-to-analog converter DAC. The analog-to-digital converter ADC is electrically connected to the high-frequency signal modulator HFM, and the digital-to-analog converter DAC is electrically connected to the high-frequency signal demodulator HFDM. For example, the analog-to-digital converter ADC is suitable for converting the data signal DS1 into a digital signal DGS1. The high-frequency signal modulator HFM is suitable for converting the digital signal DGS1 into a high-frequency signal HFS1. The first conductor structure CS1 is suitable for electrically coupling the high-frequency signal HFS1 to the biological body ORG via the first position P1 on the biological body surface ORGs.

[0044] Based on the skin effect, the high-frequency signal HFS1 is suitable for transmission on the biological surface ORGs (e.g., skin) of the biological body ORG, for example, from a first position P1 on the biological surface ORGs to a second position P2. The second conductor structure CS2 is suitable for receiving the high-frequency signal HFS2 from the biological body ORG via the second position P2 on the biological surface ORGs and transmitting it to the high-frequency signal demodulator HFDM. The high-frequency signal demodulator HFDM is suitable for converting the high-frequency signal HFS2 into a digital signal DGS2. The digital-to-analog converter DAC is suitable for converting the digital signal DGS2 into a data signal DS2.

[0045] It should be noted that, if the energy loss of the high-frequency signal transmitted through the biological surface ORGs is taken into account, the high-frequency signal HFS2 received by the second conductor structure CS2 will not be exactly the same as the high-frequency signal HFS1 sent by the first conductor structure CS1. However, in this embodiment, the aforementioned energy loss is controlled within a permissible or acceptable range (i.e., low energy loss), so the difference between the high-frequency signal HFS1 and the high-frequency signal HFS2 can be ignored. In other words, the high-frequency signal HFS2 received by the second conductor structure CS2 of this embodiment is substantially similar to the high-frequency signal HFS1 sent by the first conductor structure CS1.

[0046] Since the data transmission device 10 transmits data via high-frequency signals on the biological surface of the organism ORGs, it will not be interfered by wireless signals, thus greatly improving the stability of data transmission.

[0047] On the other hand, in this embodiment, Figure 1 The data transmission device 10 is described by taking the transmission of data signals as an example. However, the present invention is not limited thereto. The data transmission device 10 can also be applied to the signal transmission of wireless headphones. For example, the transmitter TX and the receiver RX of the data transmission device 10 are respectively integrated in the binaural headphones at positions close to the human skin to send or receive high-frequency signals transmitted through the human skin. In other words, the data transmission device 10 can also be used to transmit audio signals.

[0048] Since the operation modes of the transmitter TX electrically coupling the audio signal AS1 to the biological surface ORGs and the receiver RX receiving the high frequency signal from the biological surface ORGs and generating the audio signal AS2 are similar to the operation modes of the aforementioned data transmission device 10 for transmitting data signals, please refer to the relevant paragraphs of the aforementioned embodiment for detailed description, and will not be repeated here. It should be noted that the present invention is not limited to the style of wireless headphones, such as ear canal (or in-ear) headphones, ear-hook headphones or on-ear headphones.

[0049] It is worth mentioning that the use of the data transmission device 10 to transmit data signals or audio signals can not only eliminate the interference of wireless signals (such as wireless base stations) in the space, but also shorten the delay time (such as less than 5ms) caused by the transmission of signals between the transmitter TX and the receiver RX, thereby improving the immediacy of data transmission. In other words, the data transmission device 10 of this embodiment is very suitable for use in wireless headphones, especially wireless gaming headphones.

[0050] Further, in this embodiment, the orthographic projection contours of the first conductor structure CS1 and the second conductor structure CS2 on the biological surface ORGs are, for example, circular, but not limited thereto. In another variant embodiment, the orthographic projections of the first conductor structure CS1A and the second conductor structure CS2A on the biological surface ORGs may have holes OP, that is, their orthographic projection contours may be annular (e.g., Fig. 7A In another variant embodiment, the orthographic projections of the first conductor structure CS1B and the second conductor structure CS2B on the biological surface ORGs may also be rectangular, such as a square (such as Figure 7B In yet another variant embodiment, the orthographic projections of the first conductor structure CS1C and the second conductor structure CS2C on the biological surface ORGs may each have a hole OP", and the outline of the orthographic projection may also be an ellipse or a quasi-ellipse (e.g. Figure 7C shown).

[0051] On the other hand, in this embodiment, the area of ​​the region surrounded by the orthographic projection contours of the first conductor structure CS1 and the second conductor structure CS2 on the biological surface ORGs may be greater than or equal to 25 mm. 2 And less than or equal to 400mm 2 Please refer to Figure 4 and Figure 5 Therefore, the distance d between the first conductor structure CS1 and the second conductor structure CS2 and the biological surface ORGs can be greater than or equal to 0 mm and less than or equal to the maximum coupling distance. The distance d here is, for example, the distance between the conductor structure and the biological surface ORGs along the normal direction of the biological surface ORGs.

[0052] Depend on Figure 5 It can be seen that the maximum coupling distance between the conductor structure and the ORGs on the surface of the organism increases with the increase of the area surrounded by the positive projection contour of the conductor structure on the ORGs on the surface of the organism (i.e., the effective area). For example, when the effective area of ​​the conductor structure is 25 mm2, the maximum coupling distance is 2 mm; when the effective area of ​​the conductor structure is 400 mm2, the maximum coupling distance can be increased to 20 mm.

[0053] On the contrary, when the effective area of ​​the conductor structure on the biological surface ORGs is smaller, the maximum coupling distance between the conductor structure and the biological surface ORGs is also smaller. For example, in one embodiment, the conductor structure can be fixed and attached to the biological surface ORGs. In order to meet the miniaturization requirements of the data transmission device, the area surrounded by the positive projection outline of the conductor structure on the biological surface ORGs can be designed to be 4mm 2 That is to say, the area of ​​the area surrounded by the orthographic projection contour of the conductor structure of the data transmission device 10 on the biological surface ORGs can be designed according to the coupling distance in actual application, and the present invention is not limited thereto.

[0054] Please refer to Figure 2 Specifically, the first resonant inductor RI1 has a first end e1 electrically connected to the first output-input end IO1 of the high-frequency signal modulator HFM and a second end e2 electrically connected to the second output-input end IO2. The second resonant inductor RI2 has a first end e1 electrically connected to the third output-input end IO3 of the high-frequency signal demodulator HFDM and a second end e2 electrically connected to the fourth output-input end IO4.

[0055] In this embodiment, the first end e1 of the first resonant inductor RI1 is electrically connected to the first input / output terminal IO1 of the high-frequency signal modulator HFM via the connecting wire CWR1, and the connection point CP1 between the first conductor structure CS1 and the connecting wire CWR1 is located between the first input / output terminal IO1 and the first end e1 of the first resonant inductor RI1. The first end e1 of the second resonant inductor RI2 is electrically connected to the first input / output terminal IO3 of the high-frequency signal demodulator HFDM via the connecting wire CWR2, and the connection point CP2 between the second conductor structure CS2 and the connecting wire CWR2 is located between the third input / output terminal IO3 and the first end e1 of the second resonant inductor RI2.

[0056] However, the present invention is not limited thereto. Figure 6 In another variant embodiment, the second end e2 of the first resonant inductor RI1 is electrically connected to the second output-input terminal IO2 of the high-frequency signal modulator HFM via the connecting wire CWR1", and the connection point CP1" between the first conductor structure CS1 and the connecting wire CWR1" is located between the second output-input terminal IO2 and the second end e2 of the first resonant inductor RI1. Similarly, the second end e2 of the second resonant inductor RI2 is electrically connected to the fourth output-input terminal IO4 of the high-frequency signal demodulator HFDM via the connecting wire CWR2", and the connection point CP2" between the second conductor structure CS2 and the connecting wire CWR2" is located between the fourth output-input terminal IO4 and the second end e2 of the second resonant inductor RI2.

[0057] FIG. 8A to FIG. 8Dis a schematic diagram of the structure of a transmitter according to some variant embodiments of the present invention. Fig. 8A In the transmitter TX-A, the first conductor structure CS1 is electrically connected to the first end e1 of the first resonant inductor RI1 and the first input / output terminal IO1 of the high-frequency signal modulator HFM via the connecting wire CWR, and the connecting wire CWR directly electrically contacts the first end e1 of the first resonant inductor RI1, but the present invention is not limited thereto. Figure 8B In the transmitter TX-B, the connecting wire CWR can also directly and electrically contact the first output-input terminal IO1 of the high-frequency signal modulator HFM.

[0058] exist Figure 8C In the transmitter TX-C, the first conductor structure CS1 is electrically connected to the second end e2 of the first resonant inductor RI1 and the second input / output end IO2 of the high-frequency signal modulator HFM via the connecting wire CWR”, and the connecting wire CWR” is directly electrically connected to the second end e2 of the second resonant inductor RI2, but the present invention is not limited thereto. Fig.8D In the transmitter TX-D, the connecting wire CWR" can also directly and electrically contact the second output input terminal IO2 of the high frequency signal modulator HFM.

[0059] Since the connecting wire used to connect the second conductor structure, the second resonant inductor and the high-frequency signal demodulator in the receiver can be similar to FIG. 8A to FIG. 8D The configuration method of the connecting wires of any transmitter is set. For detailed description, please refer to the relevant paragraphs mentioned above, which will not be repeated here.

[0060] In summary, in a data transmission device according to an embodiment of the present invention, the first conductor structure electrically connected to the high-frequency signal modulator and the first resonant inductor is suitable for coupling the high-frequency signal to the biological body through the first position on the biological body surface, and the high-frequency signal transmitted through the biological body is suitable for coupling from the second position on the biological body surface to the second conductor structure electrically connected to the high-frequency signal demodulator and the second resonant inductor. Accordingly, in the process of data transmission, in addition to not being interfered by wireless signals, the delay time of signal transmission can also be shortened, thereby improving the real-time nature of data transmission.

[0061] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A data transmission device for coupling a high-frequency signal to a biological body, characterized in that: include: A high frequency signal modulator having a first input / output terminal and a second input / output terminal; A first resonant inductor electrically connected to the first input / output terminal and the second input / output terminal; A high frequency signal demodulator having a third output input terminal and a fourth output input terminal; A second resonant inductor electrically connected to the third input / output terminal and the fourth input / output terminal; A first conductor structure electrically connecting the high frequency signal modulator and the first resonant inductor; as well as A second conductor structure electrically connecting the high frequency signal demodulator and the second resonant inductor; The first conductor structure electrically couples the organism via a first position on the organism's surface and sends the high-frequency signal to the organism, and the second conductor structure electrically couples the organism via a second position on the organism's surface and receives the high-frequency signal from the organism.

2. The data transmission device according to claim 1, wherein: Also includes: an analog-to-digital converter electrically connected to the high-frequency signal modulator; as well as A digital-to-analog converter electrically connected to the high-frequency signal demodulator; The analog-to-digital converter is used to convert the audio signal into a digital signal, the high-frequency signal modulator is used to convert the digital signal into the high-frequency signal, the high-frequency signal demodulator is used to convert the high-frequency signal into another digital signal, and the digital-to-analog converter is used to convert the other digital signal into another audio signal.

3. The data transmission device according to claim 1, wherein: The first conductor structure is fixed at the first position on the surface of the organism, and the second conductor structure is fixed at the second position on the surface of the organism; the area of ​​the area surrounded by the orthographic projection contours of the first conductor structure and the second conductor structure on the surface of the organism is greater than or equal to 25 mm 2 .

4. The data transmission device according to claim 1, wherein: The distances from the first conductor structure and the second conductor structure to the surface of the biological body are both greater than or equal to 0 and less than or equal to the maximum coupling distance, and the maximum coupling distance increases as the area surrounded by the positive projection contours of the first conductor structure and the second conductor structure on the surface of the biological body increases.

5. The data transmission device according to claim 1, wherein: The orthographic projection profiles of the first conductor structure and the second conductor structure on the surface of the biological body include a circle, a rectangle or an ellipse; The orthographic projections of the first conductor structure and the second conductor structure on the surface of the biological body both have holes.

6. The data transmission device according to claim 1, wherein: The first resonant inductor has a first end electrically connected to the first input / output end and a second end electrically connected to the second input / output end. The first end of the first resonant inductor is electrically connected to the first input / output end of the high-frequency signal modulator via a connecting wire. The connection point between the first conductor structure and the connecting wire is located between the first input / output end and the first end.

7. The data transmission device according to claim 1, wherein: The first conductor structure is electrically connected to the first input / output terminal or the second input / output terminal of the high-frequency signal modulator via a connecting wire; and the connecting wire directly and electrically contacts the first input / output terminal or the second input / output terminal of the high-frequency signal modulator.

8. The data transmission device according to claim 1, wherein: The first resonant inductor has a first end electrically connected to the first input / output end and a second end electrically connected to the second input / output end. The first conductor structure is electrically connected to the first end or the second end of the first resonant inductor via a connecting wire, and the connecting wire directly electrically contacts the first end or the second end of the first resonant inductor.

9. The data transmission device according to claim 1, wherein: The first resonant inductor and the second resonant inductor are both SMD type inductors.

10. The data transmission device according to any one of claims 1 to 9, characterized in that: The data transmission device is a wireless headset, which is used to couple high-frequency signals to a biological body; wherein the biological body is a human body.

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