16results about "Device coding details" patented technology

The present invention discloses an integrated circuit chip with an address code, a key, and a mechanical keyboard. The integrated circuit chip contains a programmable address code, integrates a magnetic induction circuit, a GRB magic color drive circuit, and includes a power pin, a ground pin, and a data pin. The power pins of n integrated circuit chips are connected in parallel to share a power network VCC, the ground pins are connected in parallel to share a ground network GND, and the data pins are connected in parallel to share a data line network DIO connected to an MCU, and data information is transmitted on the data line network DIO. Another integrated circuit chip with an address code only requires a power network VCC and a ground network GND, and data information is modulated and transmitted on the power network, which greatly saves wiring space, reduces the difficulty of PCB design, and exponentially reduces the number of electronic components. In addition, a variety of different customized code sending methods and working modes are provided, making its application simpler, more efficient, and more reliable.

The invention discloses an integrated circuit chip with an address code, a key and a mechanical keyboard, the integrated circuit chip contains a programmable address code, integrates a magnetic induction circuit and a GRB color intrigue driving circuit, and comprises a power pin, a grounding pin and a data line pin; power supply pins of the n integrated circuit chips are connected in parallel to share a power supply network VCC, grounding pins of the n integrated circuit chips are connected in parallel to share a ground network GND, data line pins of the n integrated circuit chips are connected in parallel to share a data line network DIO to be connected to the MCU, and data information is transmitted on the data line network DIO; according to the other integrated circuit chip with the address code, only a power supply network VCC and a ground wire network GND are needed, data information is modulated and transmitted on the power supply network, the wiring space is greatly saved, the design difficulty of a PCB is reduced, the number of electronic components is reduced in a multiplied mode, various different user-defined code sending modes and working modes are given, and the application range is wide. And the application is simpler, more efficient and more reliable.

The invention discloses a clock oscillation circuit, a key detection system and a chip, and the clock oscillation circuit comprises a trigger unit which is used for generating an enable signal based on a key state signal; the clock oscillator is connected with the trigger unit and used for generating a clock signal based on the enable signal; the counter is connected with the clock signal generation unit and is used for receiving the clock signal and generating a count value based on the clock signal; and the control unit is connected between the trigger unit and the counter, and the control unit is used for adjusting the level of the enable signal based on the count value and controlling the clock oscillator to continuously work or be turned off. According to the invention, the clock oscillator is started by detecting the edge jump of the key state signal, the clock oscillator is automatically shut down, the circuit structure is simple, and the circuit power consumption is greatly reduced.

The application provides a program reset circuit, a key panel and a construction machine, and relates to the technical field of construction machines. The circuit comprises a reset key circuit, a logic processing circuit and a reset circuit. The reset key circuit comprises a first key circuit comprising a first reset key, a second key circuit comprising a second reset key and a third key circuit comprising a third reset key. The output ends of the first key circuit, the second key circuit and the third key circuit are respectively connected with the input end of the logic processing circuit. The output end of the logic processing circuit is connected with the input end of the reset circuit. The output end of the reset circuit is connected with an MCU. When the first reset key and the third reset key are pressed at the same time and the second reset key is not pressed, the logic processing circuit outputs a low-level signal to the reset circuit. When the MCU receives the low-level signal transmitted by the reset circuit, the reset operation is completed. The circuit does not need an external port and can improve the simplicity of program reset.

The invention provides a single connecting line heat sealing clamp circuit used for transmitting various control signals, comprising a single radio frequency connecting line used for simultaneously transmitting a power signal existing in an alternating current form and n control signals existing in a direct current form; the single radio frequency connecting line is connected with the signal isolation unit, and the signal isolation unit is used for isolating the influence of a direct current signal and an alternating current signal; the signal isolation unit is respectively connected with the power signal input end, the power signal output end, the control signal triggering unit and the control signal receiving unit; the control signal receiving unit is connected with the signal processing unit, the signal processing unit is used for judging a triggered control signal and controlling transmission of the power signal, and the invention further provides a key trigger control method. According to the invention, the complexity of the system is reduced, and the space and cost are saved; and meanwhile, the transmission stability of the power signal and the control signal is improved, and the use flexibility is improved.

The utility model discloses a hardware circuit for physical buttons applied to AR wearable products, including a central processing unit and an ADC, wherein the central processing unit is connected to the ADC, and a plurality of resistors are connected in parallel to the pins of the ADC, and the plurality of resistors are grounded through buttons. The utility model can be applied to wearable products with high requirements on the thickness of wire harnesses, such as AR, VR, etc., and can effectively reduce the number of wire harnesses introduced by buttons; thus, in the application of AR products, the temples can be thinner, or the transmission lines can be smaller, the whole machine can be lighter, and the button experience can be better than that of the touchpad, etc.

The utility model relates to a knob encoder circuit capable of converting a low section number into a high section number. The knob encoder circuit comprises an encoder I SW1, a de-jitter processing circuit, a buffer U3 and an MCU (Microprogrammed Control Unit), wherein the encoder I is a low-section-number encoder; a pulse output signal of the encoder I is input to the buffer U3 through the de-jitter processing circuit, the buffer U3 performs signal processing and then outputs the signal to the MCU, and the MCU performs pulse width processing on the signal so as to simulate a high-section encoder. According to the knob encoder circuit for converting the low section number into the high section number, after the first encoder SW1 is processed by the jitter removing circuit of the knob encoder with the low section number, the signal is input into the U3 buffer for signal processing, and then is output into the MUC for pulse width processing to simulate the knob encoder with the high section number; a pulse signal output by the knob encoder with a low section number is input into the MCU, the pulse broadband is reprocessed, and the output of the knob encoder with a high section number is simulated.

The application discloses a clock oscillation circuit, a key detection system and a chip. The clock oscillation circuit comprises a trigger unit, a clock oscillator and a counter. The trigger unit is used for generating an enable signal based on a key state signal. The clock oscillator is connected with the trigger unit and is used for generating a clock signal based on the enable signal. The counter is connected with the clock signal generation unit and is used for receiving the clock signal and generating a count value based on the clock signal. A control unit is connected between the trigger unit and the counter. The control unit is used for adjusting the level of the enable signal based on the count value and controlling the clock oscillator to continuously work or shut down. The clock oscillator is started by detecting the edge jump of the key state signal, and the clock oscillator is automatically stopped. The circuit structure is simple, and the power consumption of the circuit is greatly reduced.

The invention discloses an identification method for realizing multiple keys based on a single-channel ADC and a processing terminal, and the method comprises the steps: employing a first parameter and a second parameter to judge a key corresponding to a key of a current pressing operation, the first parameter comprising a steady-state voltage value # imgabs0 # representing that the key enters a stable pressing state after the pressing operation, and the second parameter comprising a steady-state voltage value # imgabs0 # representing that the key enters a stable pressing state after the pressing operation; the second parameter comprises voltage establishment time # imgabs 1 #, and the voltage establishment time # imgabs 2 # represents the time from the time when the key enters the effective pressing state to the time when the key is in the state close to the stable pressing state. On the basis of a single-channel ADC architecture, detection and identification of the keys can be realized, the identification accuracy of the combined keys is improved, the combined keys can be reliably distinguished from voltage keys, and the anti-interference capability and the environmental adaptability of the system are enhanced.

The present application discloses a key circuit of an electronic device, the electronic device and a control method of the electronic device, wherein the key circuit comprises a first key and a switching circuit, the switching circuit comprises a first contact, a switch unit, a first control signal terminal and a second control signal terminal, the first key is connected to the first contact, the first control signal terminal is used to output a first control signal, and the second control signal terminal is used to output a second control signal, when the electronic device is in a shutdown or screen-locked state, the switch unit conducts the first contact and the second control signal terminal, when the electronic device is in a screen-on state, the switch unit conducts the first contact and the first control signal terminal, the first key is a volume-up key, and the first control signal is a volume-up control signal, or the first key is a volume-down key, and the first control signal is a volume-down control signal, the volume-up key or the volume-down key integrates the function of a power-on key, and the power-on key can be canceled to reduce the number of physical keys.

The utility model discloses an integrated circuit chip with an address code, a key and a mechanical keyboard, the integrated circuit chip contains a programmable address code, integrates a magnetic induction circuit and a GRB color intrigue driving circuit, and comprises a power supply pin, a grounding pin and a data line pin; power supply pins of the n integrated circuit chips are connected in parallel to share a power supply network VCC, grounding pins of the n integrated circuit chips are connected in parallel to share a ground network GND, data line pins of the n integrated circuit chips are connected in parallel to share a data line network DIO to be connected to the MCU, and data information is transmitted on the data line network DIO; according to the other integrated circuit chip with the address code, only a power supply network VCC and a ground wire network GND are needed, data information is modulated and transmitted on the power supply network, the wiring space is greatly saved, the design difficulty of a PCB is reduced, the number of electronic components is reduced in a multiplied mode, various different user-defined code sending modes and working modes are given, and the application range is wide. And the application is simpler, more efficient and more reliable.

The application belongs to the field of signal measurement, and discloses an AD type key control circuit, method, device, computer equipment and medium, which comprises an input port, the input port is connected with the input end of a plurality of parallel pull-up circuits, the output end of the pull-up circuit is connected with the first end of a sampling circuit, and the second end of the sampling circuit is connected with a plurality of pull-down circuits; any pull-down circuit is provided with at least a plurality of key switches and a pull-down resistor corresponding to the key; any pull-up circuit is provided with a microcontroller for controlling whether the pull-up circuit is connected to the circuit; the output end of the pull-up circuit is also connected with an output port for outputting an electric signal to a receiving end, the receiving end judges the key switch that is pressed according to the electric signal, when any key in the key control circuit is pressed, a preset rule is adopted to control whether the plurality of pull-up resistors are connected to the circuit in turn, the ADC value of the circuit is sampled after the pull-up resistor is switched each time, and the sum of the sampled ADC values is taken as the ADC standard value of the key being pressed.

The utility model relates to port detection technical field discloses a single IO port can detect multiple key circuit with simple structure and higher accuracy ratio, including low voltage difference voltage stabilizing circuit (110), key hardware circuit (120) and detection and control circuit (130), wherein, when key hardware circuit (120) is triggered or is not triggered, its output at least one way trigger signal, detection and control circuit (130) are used to obtain the trigger signal of key hardware circuit (120) being triggered or not being triggered and judge the key state of key hardware circuit (120) according to trigger signal.

The invention belongs to the technical field of single-key multi-path switching in lines, and particularly relates to a single-key multi-path switching device. The device comprises a sorting module, a pulse distributor and m output modules connected with the pulse distributor, wherein the pulse distributor comprises n output ends; the sorting module is used for receiving a clock pulse triggered by a key and gradually pushing the output end of the pulse distributor to generate a high level; the output modules are connected with the first m output ends of the pulse distributor in a one-to-one mode and convert low-level signals output by the pulse distributor into high-level driving signals through a pull-up resistor so as to control the conductive state of the external socket. Switching control of multiple lines can be completed through a single key, and use of keys is reduced on a large scale.

The present invention discloses an ultrasonic scalpel handle key recognition circuit and recognition method thereof, comprising a carrier signal generating circuit and a signal amplitude detection circuit. The carrier signal generating circuit includes an FPGA and a signal amplification circuit. A third capacitor is connected in series between the carrier signal generating circuit and the signal amplitude detection circuit. The signal amplitude detection circuit includes four operational amplifiers, each with an inverting input electrically connected to the third capacitor and a non-inverting input electrically connected to four nodes of five series resistors. The signal output of the carrier signal generating circuit is electrically connected to a key signal sampling device in a conversion isolation manner. The key signal sampling device includes a key signal sampling circuit and an electrical connector connected to the handle key recognition circuit. The electrical connector adopts a two-electrical connection terminal structure. The circuit structure is simple, can control and identify the corresponding key state, reduce electromagnetic interference, and improve the stability and reliability of the ultrasonic scalpel.