79results about How to "Save port resources" patented technology

The invention discloses HDMI (high-definition multimedia interface) interface detection device and method and an HDMI interface system. The device comprises an HDMI interface, a first switch tube and a second switch tube. A power supply end of the HDMI interface is connected with a collector of the first switch tube through a first resistor and is connected with a collector of the second switch tube through a second resistor. A hot plug detection end of the HDMI interface is connected with a hot plug detection control end of a terminal device through a third resistor and is connected with the collector of the first switch tube. An emitter of the first switch tube is earthed. A base of the first switch tube is connected with the collector of the second switch tube through a fourth resistor. The emitter of the second switch tube is earthed. A base of second switch tube is connected with a standby power supply end of the terminal device through a fifth resistor. The HDMI interface detection device and method and the HDMIN interface system save port resources of the terminal equipment effectively and can meet the requirement for input detection of multiple HDMI interfaces.

The invention discloses a plug-in communication method and device. The plug-in communication method comprises the steps of receiving a plug-in invoking request sent by a terminal; transmitting the plug-in invoking request to a plug-in server corresponding to a plug-in; receiving result information returned by the plug-in server; sending the result information to the terminal. The plug-in invoking request sent by the terminal and the result information returned by the plug-in server are transmitted through a plug-in management server, plug-ins are prevented from occupying independent port resources and starting independent complete web page servers, port resources and system resources are saved, and the development cost is reduced.

The invention relates to a device capable of simultaneously conducting power supplying and charging on a mobile electronic device. The improvement is carried out on the basis of an existing power source capable of simultaneously conducting power supplying and charging, the connection mode of a field-effect tube serving as a switch is improved to enable resistance output by a battery to a mobile device power supply access to be reduced, a lining switching circuit for the field-effect tube is additionally arranged, electric leakage of a parasitic diode on the field-effect tube is effectively avoided, a control chip circuit is optimized to enable the device to be efficient, port resources are saved, the power supply efficiency is accordingly promoted, meanwhile, the design cost is reduced, and the design flexibility is promoted.

The invention is applicable to the technical field of a detection circuit and provides a headset detection circuit and a piece of electronic equipment. The headset detection circuit comprises a headset interface and a controller, wherein a left channel pin and a right channel pin of the headset interface are respectively connected with a left channel end and a right channel end of the controller; a ground pin of the headset interface is connected with the ground; a detection pin of the headset is connected with an analog-to-digital conversion end of the controller by a voltage division circuit of a serial resistor; and the voltage division circuit of the serial resistor comprises a headset plug detection module and a functional module which uses the analog-to-digital conversion end. In the circuit, the analog-to-digital conversion end of the controller is used as a detection end; no GPIO (General Purpose Input / Output) port is used, thus saving the resource of an I / O (Input / Output) port. Moreover, the headset plug detection module in the headset detection circuit can share the analog-to-digital conversion end of the controller with the functional module which uses the analog-to-digital conversion end, therefore, the interface resource is saved by the controller. Simultaneously, in the embodiment of the invention, the circuit has a simpler structure and the cost is decreased.

The invention provides a route calling method, device and system, and relates to the technical field of communications. The method comprises the steps that a calling request sent by a CS network in a first-level region is received by a first MGCF; a first-level region which a called number contained in the calling request belongs to is determined by the first MGCF according to configured number information of each first-level region; if the number does not belong to the first-level region, the calling request is routed to a second MGCF of the first-level region which the called number belongs to by the first MGCF so that the calling request can be routed to a CS network in the first-level region which the called number belongs to by the second MGCF. According to the technical scheme of the route calling method, device and system, cross-region calling between CS network users is unclogged through an IMS network, terminal resources of traditional long-distance networks are saved, and advantages of the IMS network can be fully utilized.

The invention relates to a system used to detecting network service and relative method, wherein first, imaging the detected network service; then sending the network service via preset path to the detecting center. Since the invention uses special logic channel to send the imaged report to the detecting center, but not uses special detecting port to send the imaged report, the invention can reduce the demand for network resource; therefore, the invention can send the network service to the detecting center without occupying the special port, to save the port resource and improve the port utilization.

The invention discloses an image processing method based on an FPGA. The method comprises 1, an image collecting step that 1), the first output port of an FPGA controller sends 8 secondary analog switch gating signals in 8 collection periods in sequence, and the second output port of the FPGA controller only sends 1 primary analog switch gating signal in the 8 collection periods, 2), amplification, filtering and analog-to-digital conversion are carried out on the to-be-processed analog image signals obtained in the step 1), thereby obtaining digital image signals, and 3), the digital image signals are stored; and 2, an image compression step. The invention also discloses an image processing system based on the FPGA. The method and the system has the advantages that synchronous collection and rapid processing can be carried out on the output of the tens of CCD cameras, the port resources of the controller will not be occupied excessively, and moreover, high-speed collection and storage can be carried out on the large data volume of image signals.

The invention discloses a one-time programmable microcontroller chip based test circuit, which comprises an unlocking unit, a decoding unit and a testing unit, and is characterized in that the unlocking unit receives a level signal and a serial data signal, and the unlocking unit sends an unlocking signal when the level signal and the serial data signal satisfy a specific time sequence; the decoding unit is connected with the unlocking unit, and the decoding unit receives the serial data signal and a serial clock signal after receiving the unlocking signal and generates a test signal and a test clock signal; and the testing unit is connected with the decoding unit, and the testing unit receives the serial data signal and the test clock signal after receiving the test signal and sends test data in the serial data signal to a processor, wherein the test clock signal is enabled to act as a clock signal of the processor.

The present invention discloses an anti-interference multi-channel analog sampling circuit and method. The anti-interference multi-channel analog sampling circuit comprises a controller, an A / D converter, M SPI chips, and N sensors. The data output end DoutaM of the Mth SPI chip is connected to the verification signal input terminal Douta of the controller. The M SPI chips are subjected to cascade connection to form a daisy chain sampling structure, and thus the sampling of any sensor can be controlled. An isolation chip is arranged between a first SPI chip and the controller. An isolation chip is arranged between the A / D converter and the controller. The isolation chips are ADuM1411 chips. The SPI chips are ADG739 chips. AD7793 is employed by the A / D converter. The anti-interference multi-channel analog sampling circuit and method are easy to implement, and the anti-interference effect is prominent.

The invention relates to a simulating testing device, which comprises communicate module and testing module, wherein testing device via received testing command obtains test information, via the test information to obtain the tested DSLAM port type or MODEM information; then the testing device informs picker to connect the tested circuit to it; via the test information, tested DSLAM port type or MODEM information, processing xTU-C and xTU-R simulation test and reporting the test results; therefore, the invention can process xTU-C simulating test on one place, and process xTU-R simulating test on MODEM. And the testing module can support every xDSL access techniques, to support share port to process xTU-C and xTU-R test.

The invention discloses a simplified storage method for a one-time programmable memory. Control enabling input signals, address bus input signals and data bus input signals are subjected to multivalued logic conversion and combined logic, corresponding output enabling signals, programmable starting signals, data input signals and address selection signals are output to the one-time programmable memory, the one-time programmable memory realizes mode selection by identifying the input signals, and corresponding operations are completed by the one-time programmable memory under a determined mode state. According to the simplified storage method, the storage speed and the storage efficiency of the one-time programmable memory can be improved, the complexity of the input signals of the one-time programmable memory is simplified, the crosstalk in a programming process of the one-time programmable memory is reduced, the programming misoperation is avoided, the reliability of the one-time programmable memory is improved, the power consumption is reduced, and the integration and the application of the one-time programmable memory are facilitated. The one-time programmable memory is reasonable in structure, wide in application range and simple in implementing method, and is suitable for a semiconductor integrated circuit and a discrete component.

The invention provides a route calling method, device and system, and relates to the technical field of communications. The method comprises the steps that a calling request which is launched by a CS network user, is sent by a first MGCF and corresponds to a second-level region in a first-level region is received by an I-CSCF; if the I-CSCF determines that a called number in the calling request is a non-IMS user number, the calling request is routed to a first BGCF corresponding to the first-level region to ensure that a first-level region which the called number belongs to is determined by the first BGCF according to configured phone number information of each first-level region and the calling request is routed to a second BGCF corresponding to the first-level region which the called number belongs to and is further routed to the CS network of the second-level region which the called number belongs to from the second BGCF. According to the technical scheme of the route calling method, device and system, calling between cross-first region CS network users is unclogged through an IMS network, terminal resources of traditional long-distance networks are saved, and advantages brought by IP intercommunications in IMS networks can be fully utilized.

The invention discloses a video data obtaining method of computer cam through photographic handset, which comprises the following steps: A. fabricating the photographic handset into video capture equipment in the computer; B. selecting the fabricated video capture equipment as present video capture equipment; C. sending the video obtaining order from computer to the present video capture equipment; receiving the order in the handset; sending the obtained video data to the computer through wireless connection transmission; D. receiving the video data from handset. The invention realizes the resource share of handset and computer and saves the interface resource of computer, which breaks through the limit of capacity of obtained video data in the handset.

The invention relates to a laser beauty machine and discloses a charging voltage control system which is used for the laser beauty machine and a control method thereof. The laser beauty machine comprises microprocessors, a charging control circuit, a charging object, a light trap 2 and a light trap 3, and also comprises a light trap 1 and a frequency conversion voltage circuit; the method includes the following steps: according to needs, one microprocessor outputs a voltage value in a way of frequency, which is then output to the light traps, the frequency conversion voltage circuit, the charging control circuit and the charging object in sequence; and the other microprocessor issues a charging order to the charging control circuit so as to charge the charging object. When a fixed value is reached, the charging control circuit issues a charging ending signal which can be received by the microprocessor later, finally, a charging stopping signal is issued to the charging control circuit by the microprocessor. The invention leads the machine to have low cost, strong interference resisting ability and high working reliability.

The invention relates to the technical field of LED driving, and specifically discloses a low-cost constant-current charging LED driving circuit. The driving circuit has a power supply input end connected with a power supply, and also comprises a first resistor, a second resistor, a first diode, a second diode, a lighting-on induction switch, a triode and a light emitting diode. According to the low-cost constant-current charging LED driving circuit provided by the invention, through establishment of the triode, the diodes and other components, LED luminance stability is realized, and it is ensured that the LED luminance is still unchanged in an LED power supply voltage fluctuation condition; through a received external low-level feedback lighting-on signal, the LED is driven directly, sothat occupation of an MCU port is avoided, and the system MCU port resource is saved; and by adoption of establishment of the resistors, the diodes, the triode and other low-cost electronic components, and compared with the existing circuit which adopts a scheme of adopting an LDO voltage-stabilizing chip to realize LED constant current driving, the cost is greatly lowered and higher cost performance is achieved in the invention.

The invention discloses a port multiplexing method and device for an MCU. The MCU comprises multiplexing ports. The method comprises the steps of judging whether the multiplexing ports of the MCU conform to a debugging protocol or not; when it is determined that signals of the multiplexing ports conform to the debugging protocol, controlling the MCU for performing debugging according to the signals of the multiplexing ports; when it is determined that the signals of the multiplexing ports do not conform to the debugging protocol, controlling the MCU to perform reset according to the signals ofthe multiplexing ports. Accordingly, multiplexing of the reset ports and the debugging ports of the MCU is achieved, the MCU port resources are saved, the MCU integration degree is increased, and therefore application and development are easier.

The invention provides an IGBT (Insulated Gate Bipolar Transistor) driving protection circuit and a home appliance. The IGBT driving protection circuit includes an MCU (Microcontroller Unit), a driving protection circuit, a surge protection circuit and an IGBT driving circuit. The output end of the driving protection circuit and the output end of the surge protection circuit are connected to the same input port of the MCU, and the IGBT driving circuit is connected to the output port of the MCU. The MCU is used for determining whether a voltage input to the input port is greater than a first preset value, and outputting a first signal to the IGBT driving circuit to enable the IGBT driving circuit to make an IGBT switched off if the voltage input to the input port is greater than the first preset value. The driving protection circuit is used for outputting a first voltage to the input port when a voltage input to the driving protection circuit is smaller than a second preset value, wherein the first voltage is greater than the first preset value. As the driving protection circuit and the surge protection circuit share the same input port of the MCU, the port resources of the MCU are saved, and the utilization rate of ports is improved.

The invention discloses a wireless remote control encoder chip and application circuit thereof. The wireless remote control encoder chip is internally integrated with a reset unit, a recombined key unit, an oscillating unit, a latch unit, a frequency demultiplication unit, an encoding unit, a unit code generation unit, a recombination unit, an SO drive unit and a PC (Personal Computer) driver unit. The wireless remote control encoder chip has functions of moving forward, moving backward, turning left, turning right and acceleration, and also can implement a demonstration function, so, functions of IC (Integrated Circuit) are enhanced. Meanwhile, recombined key design is used in the wireless remote control encoder chip, and IC port resource is saved. Additionally, the oscillating unit is integrated in the chip, so that the IC port resource is saved, and interference on the IC caused by outside signals is reduced.

The invention discloses an integrated type LED light-emitting module. The integrated type LED light-emitting module comprises an LED light-emitting array, a CPU, a dimming module, a multi-channel analog switch and M latches. The multi-channel switch is a choosing-one-from-M analog switch. The number of channels of the multi-channel switch and the number of the latches are both M. M is a natural number. The LED light-emitting array comprises M*N parallel-connection LED light-emitting modules. The dimming module is connected with a power source. The multiple LED light-emitting modules are all connected with the output end of the dimming module. The M*N LED light-emitting modules are divided into M groups. Each group comprises N LED light-emitting modules. The dimming module is controlled by the CPU. The CPU controls the output voltage or the output current of the dimming module through the dimming module. The CPU, the multi-channel analog switch, the latches and the LED light-emitting array are connected sequentially. The integrated type LED light-emitting module can achieve control over any one or more light-emitting modules based on limited port resources, and the flexibility and expansibility are good.

The invention provides a product testing system comprising a power circuit, a processing circuit, a multi-path selection circuit, an acquisition circuit and a communication circuit. The processing circuit is configured to generate a test signal and send the test signal to a to-be-tested circuit board. The input terminal of the multi-path selection circuit is connected with the to-be-tested circuitboard; the output terminal of the to-be-tested circuit board is connected with the input terminal of the acquisition circuit; one path of the multi-path selection circuit is corresponds to one path of signal in the to-be-tested circuit board; and the output terminal of the acquisition circuit is connected with an acquisition terminal of the processing circuit. The processing circuit is also usedfor determining whether an output signal is correct based on a digital signal, generating a corresponding test result, and sending the test result to an external device through the communication circuit. With the provided product testing system, the port resources of the processing circuit are saved; the number of the acquisition circuits is reduced; the cost is saved; the use efficiency of the acquisition circuit is improved; and the testing efficiency and the testing accuracy are enhanced.

The invention relates to a control circuit, a charging circuit and electronic equipment. The control circuit comprises a controller circuit, a voltage driving circuit and a voltage control circuit, wherein the driving end of the controller circuit controls the output of a driving signal; when the voltage driving circuit and the voltage control circuit receive the driving signal, the voltage driving circuit adjusts a first power supply voltage into a driving voltage according to the driving signal, and the voltage control circuit controls a switching circuit to be switched on according to the driving voltage; and when the voltage driving circuit and the voltage control circuit do not receive the driving signal, the voltage driving circuit outputs a first power supply voltage, and the voltage control circuit controls the switching circuit to be switched off according to the first power supply voltage. Therefore, as one port of the controller circuit is matched with the voltage driving circuit and the voltage control circuit, the on state and the off state of the switching circuit are controlled, so port resources of the controller circuit can be effectively saved and cost is reduced.

A motor forward and reverse rotation control circuit and a robot belong to the field of motor driving, and are connected with a motor. When a second control signal is accessed, a first voltage conversion circuit converts an input voltage into a reverse power supply voltage of the motor according to the second control signal; the second switching circuit outputs a third control signal according to the second control signal; the second voltage conversion circuit converts the input voltage into a forward power supply voltage of the motor according to a third control signal; the first voltage conversion circuit and the second voltage conversion circuit work at most one time at the same moment; a motor forward and reverse rotation control circuit with single power supply input and single signal control is realized; due to single-signal control, the risks of time delay and short circuit do not exist, and port resources of the microprocessor are saved; and due to single power supply input, the circuit is simplified, and the cost is reduced.

The invention relates to a system used to detecting network service and relative method, wherein first, imaging the detected network service; then sending the network service via preset path to the detecting center. Since the invention uses special logic channel to send the imaged report to the detecting center, but not uses special detecting port to send the imaged report, the invention can reduce the demand for network resource; therefore, the invention can send the network service to the detecting center without occupying the special port, to save the port resource and improve the port utilization.

The invention discloses a circuit for realizing LED drive through a shifting register. The circuit comprises a first MCU controller and a second MCU controller; a first QE pin of the first MCU controller, a first GND pin of the first MCU controller, a second QE pin of the second MCU controller and a second GND pin of the second MCU controller are serially connected together and connected to a power cathode; a first VCC pin of the first MCU controller and a second VCC pin of the second MCU controller are connected to a power anode; a capacitor C2 is serially connected with a resistor R1, the capacitor C6 is serially connected to a resistor R5; light-emitting diodes are serially connected with the resistor R6, and the light-emitting diodes are connected to the second Q6 pin of the second MCUcontroller in parallel; the second Q5 pin and the second Q6 pin of the second MCU controller are connected with two digital display tubes. The display drive of the LED is realized by utilizing less IO pins of the MCU, the port resource occupying the MCU is less, and the production cost is reduced.

The embodiment of the invention discloses a distributed information caching method, device, computer equipment and storage medium. The method includes: obtaining user cache information, the user cache information includes first user identification information, each node in the distributed cluster system communicates through a cluster communication port, and at least two nodes in the distributed cluster system are configured with server; according to the first user identification information, select a server that matches the user cache information in the distributed cluster system as a target server; perform caching the user cache information in the cluster communication port through the cluster communication port Describe the operation of the target server. The embodiments of the present invention can optimize the existing distributed caching technology to meet people's ever-increasing demand for personalized and convenient distributed caching.