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

The invention provides a method for realizing communication between host devices and a network side device. The method comprises the following steps: the network side device receives a request of communicating with a second host device sent by a first host device, wherein, position identification and identity identification of the first host device are separated, and the second host device takes position identification as identity identification; the network side device distributes a temporary identification ID and a temporary forwarding port for a session between the second host device and the first host device, and forwards a communication data packet between the first host device and the second host device through the temporary identification ID and the temporary forwarding port. By applying the method and the network side device in the invention, that a host device with separated position identification and identity identification visits a traditional host device can be realized.

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 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 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 discloses an identification method for a short message service (SMS) protocol and a gateway system. In the identification method, the gateway system receives a request message from a client by establishing a TCP (transmission control protocol) link, wherein the request message carries the IP (internet protocol) address message of the client; and the gateway system judges and determine the SMS protocol adopted by the TCP link based on the IP address message and the length information of the request message. By the technical scheme in the invention, the system configuration is simplified and the logic complexity of the system is reduced.

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 an LED backlight control method for controlling an LED backlight source. The method comprises: step one, carrying out initialization; step two, display parameter data are loaded to an LED light-emitting array; and step three, whether the display parameter data change; if not, waiting is carried out continuously; and if so, a changed data assignment value is provided for the data and the step two is carried out. Therefore, controlling of one or more light-emitting modules is realized based on limited port resources and thus the method is easy to implement.

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.

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.