27 results about "Chip" patented technology

The invention discloses a sparse code division multiple access signal detection method based on a depth neural network. First, the relationship between users and resources is expressed as factor graph, Then the iterative transfer of information on the factor graph is transformed into the forward transfer of neural network, and then the signal detection error is estimated and the estimated value isused as the input data of the neural network, and then the gradient descent method is used to train the neural network to obtain better coefficients, and finally the trained network is used for SCMAsignal detection. Because of the use of neural network architecture, this method can be implemented on the corresponding AI chip. Compared with the traditional methods, this method can improve the performance and transfer the related computations to the high-speed parallel processing AI chip, which can effectively reduce the time delay caused by SCMA signal detection.

The invention discloses a communication equipment control method which is suitable for touch control equipment, the touch control equipment comprises a scanning chip and an algorithm chip, the algorithm chip is used for being connected with main communication equipment, and the scanning chip is used for being connected with auxiliary communication equipment; the method comprises the steps that thealgorithm chip converts touch information acquired by the scanning chip into coordinate information; the algorithm chip encapsulates the coordinate information according to a preset data protocol andsends an encapsulated data packet to the scanning chip; the scanning chip analyzes the data packet and sends the analyzed coordinate information to auxiliary communication equipment; and the algorithm chip sends the converted coordinate information to the main communication device. The invention further discloses a communication equipment control device, a communication equipment control system and a computer readable storage medium. By adopting the embodiment of the invention, double-channel point reporting of the touch product can be realized.

The embodiment of the invention relates to the technical field of chip design, and provides a chip and a chip power-on starting method, the chip comprises an enabling pin, a clock input pin and a reset pin, and a first clock reset module, a selector and a controller which are arranged in the chip; The input end of the first clock reset module is electrically connected with the clock input pin andthe reset pin, and the output end of the first clock reset module is electrically connected with the selector; And the selector is electrically connected with the enabling pin and a controller of thechip. According to the embodiment of the invention, through simplifying the design of the chip power-on starting, bypassing the power management, high-level security and other complex processing processes related to the power-on starting, the chip power-on starting is realized only by using the clock signal and the reset signal, and the reliability of the chip power-on starting is improved.

The invention discloses an intermediate frequency direct current detuning calibration DCOC circuit applied to a radio frequency signal receiver, the intermediate frequency direct current detuning calibration DCOC circuit comprises an operational amplifier OPA1, an NMOS transistor M1, an NMOS transistor M2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1 and a capacitor C2, one output end of the operational amplifier OPA1 is connected with the resistor R2, and two ends of the capacitor C1 are respectively connected with the output end and an in-phase input end of the operational amplifier OPA1. The other output end of the operational amplifier OPA1 is connected with the resistor R4, and the two ends of the capacitor C2 are connected with the output end of the operational amplifier OPA1 and the inverted input end of the operational amplifier OPA1 respectively. The source electrode of the NMOS transistor M1 is connected with the in-phase input end of the operational amplifier OPA1, and the drain electrode of the NMOS transistor M1 is connected with one end of the resistor R1. The source electrode of the NMOS transistor M2 is connected with the inverted input end of the operational amplifier OPA1, and the drain electrode of the NMOS transistor M2 is connected with one end of the resistor R3. According to the invention, low direct-current offset calibration high-pass turning frequency and small layout area can be realized, the overall area of a chip is reduced, and the manufacturing cost is reduced.

The invention discloses a signal output and detection precision optimization system. The system comprises a power supply management chip, a hardware low-pass filter, a DMA list module, a software filter, a voltage control module and an acquisition module, wherein the hardware low-pass filter is used for filtering out specific switching frequency and clutters so as to reduce voltage fluctuation reaching an acquisition port; the DMA list module is used for executing DMA data sampling and storing real-time acquired data; the software filter is used for carrying out peak value plus mean value filtering processing on data stored in the DMA list module; the voltage control module is used for carrying out power supply regulation and control on the power supply management chip according to a processing result of the software filter, and the acquisition module is used for processing the processing result of the software filter as data to be uploaded. According to the invention, required outputvoltage, high-precision voltage output and high-precision current acquisition can be rapidly adjusted.

The invention relates to a processing method of a microfluidic electrical detection chip. The method comprises the following steps of drawing a three-dimensional model, drawing a three-dimensional model of the microfluidic electrical detection chip by using three-dimensional drawing software, and converting the three-dimensional model into an STL file; generating a printing path: generating the printing path after the three-dimensional model is sliced according to the STL file; printing a chip model, printing a sacrificial male mold used for manufacturing a micro-channel structure on a substrate, printing electrode structures with the same height as the sacrificial male mold on two sides of the sacrificial male mold, and printing a sealing structure used for covering the sacrificial male mold and the electrode structures above the sacrificial male mold and the electrode structures; and curing and molding a printing mold to obtain the integrated microfluidic electrical detection chip. Integrated manufacturing of the microfluidic electrical detection chip with the micro-channel structure and the detection electrode structures can be realized, and popularization and application of a microfluidic electrical detection technology in the fields of clinical instant diagnosis and the like are promoted.

The invention provides a CAN (Controller Area Network) bus communication control system and a communication system, the communication system is based on an SoC (System on Chip) framework consisting ofan MCU (Microprogrammed Control Unit) kernel and an FPGA (Field Programmable Gate Array) kernel which are integrated in the same system on chip, and a CAN bus controller module, an MCU bus mapping module and a CAN bus interrupt signal mapping module are arranged on the basis of logic resources in the FPGA kernel; the CAN bus between the MCU and the off-chip external CAN equipment is integrated inthe chip, the number of the CAN buses can be dynamically configured, and priority classification control of the MCU kernel on each CAN bus controller module is realized, so that the expansibility andusability of the MCU are improved, the design and application complexity of mounting the external CAN equipment by the MCU is reduced, a user can quickly apply the CAN buses, the dependence of the CAN bus priority on the CAN equipment node is reduced, and the controllability of the MCU on the CAN equipment node priority is enhanced. The invention also provides a method for dynamically configuringthe priority of each equipment node of the CAN bus.

The invention provides a serial communication debugging method based on a test environment. The method comprises the following steps: installing a virtual single-chip microcomputer automatic serial port tool and a message configuration file in a computer; modifying the message configuration file according to a test environment requirement; enabling the single-chip microcomputer to be connected with a computer through a serial port line; starting an automatic serial port tool, and realizing serial port communication debugging through message automatic reply. The computer is used for simulating the MCU serial port, receiving and sending message pairs can be customized according to actual requirements, the field environment can be simulated, serial communication customized automatic reply is achieved, and follow-up debugging work is facilitated.

The invention discloses a high-reliability plug-in type light-emitting diode with a built-in driving IC, and belongs to the field of diodes, the high-reliability plug-in type light-emitting diode with the built-in driving IC comprises a built-in IC control chip, a lead frame and a light-emitting chip, the lead frame comprises five functional welding pins, and the five welding pins are respectively DO, Gnd, Vcc, DI1 and DI2. The DO contains DO1 and DO2; the built-in IC control chip is used for processing data signals of the controller and a superior pixel point; the light-emitting chip is used for radiating visible light; the DO is used for outputting a data signal; and the Gnd and the Vcc are respectively a positive electrode and a negative electrode. Normal operation of the pixel points is guaranteed, meanwhile, double-path signal transmission is adopted, operation of the secondary pixel points is not affected after a single pixel point is damaged, normal display of the whole color is guaranteed, the use reliability is higher, the market use requirement is met, the maintenance probability is reduced, and the high-reliability plug-in type light-emitting diode is suitable for application and popularization.

The invention discloses a device for automatically switching an uplink port of a chip. The device comprises a Switch board, wherein configuration pins 1-3 of the Switch board are respectively connected to pull-down resistors R3-R5; Single-channel switch chip, an input pin A of the single-channel switch chip is connected to a configuration pin 0 of the Switch board; the output pin B1 is connected to a pull-up resistor R1; the output pin B0 is connected to a pull-down resistor R2; the selection signal pin is connected to a pull-up resistor R6; wherein the single-channel switch chip is configuredto connect the input pin A with the output pin B1 when the selection signal pin inputs a high level, and connect the input pin A with the output pin B0 when the selection signal pin inputs a low level. By means of the device, the function of automatic switching of the uplink port of the chip can be achieved, and the device has the advantages that switching of the uplink port is flexible, and theboard card maintenance difficulty is lowered.

The invention provides a control device and a washing machine. The control device comprises a circuit board, a control panel, a frequency conversion chip and a driving module, wherein the control panel comprises a display control module arranged on the circuit board and a control switch connected with the display control module, and the display control module is used for sending an operation instruction to the frequency conversion chip according to the operation state of the control switch; the frequency conversion chip is arranged on the circuit board and is used for receiving and storing a motor control algorithm and a washing machine control program and generating a corresponding motor frequency conversion signal and a control instruction according to the operation instruction; and thedriving module is arranged on the circuit board and is used for driving a motor according to the motor frequency conversion signal. By applying the technical scheme provided by the invention, the motor frequency conversion signal and the control instruction are directly generated by the frequency conversion chip, so that the communication process of mutual interaction between a main control chip and the frequency conversion chip in the prior art is reduced, the control delay is reduced, the control efficiency is improved, the production cost is reduced, and the competitiveness of the product is finally improved.

The invention discloses a service message processing method and equipment based on a network address translation protocol, which are used for solving the technical problem that network address translation loopback can be realized only by carrying out an exchange chip flow twice through an internal loopback port in the existing message translation. The method comprises the following steps: receiving a service message from a host and/or a server of a local network through a switch; according to the first access control list rule, carrying out the source address conversion on the service message, obtaining a corresponding next skip list index through a routing table, and according to the second access control list rule, carrying out the destination address conversion on the service message to obtain a corresponding next skip list index; and determining an exit corresponding to the next hop address according to the next hop list index corresponding to the second access control list rule, thereby realizing forwarding of the service message. According to the method, access control list rules are inquired in parallel in a plurality of blocks of the access control list, so source address translation and destination address translation are performed at the same time.

Low-power, dual sensitivity thin oxide FG-MOSFET sensors in RF-CMOS technology for a wireless X-ray dosimeter chip, methods for radiation measurement and for charging and discharging the sensors are described. The FG-MOSFET sensor from a 0.13 μm (RF-CMOS process, includes a thin oxide layer having a device region, a source and a drain associated with the device well region, separated by a channel region, a floating gate extending over the channel region, and a floating gate extension extending over the thin oxide layer adjacent to the device well region. In a matched sensor pair for dual sensitivity radiation measurement, the floating gate and the floating gate extension of a FG-MOSFET higher sensitivity sensor are without a salicide layer or a silicide layer formed thereon and the floating gate and the floating gate extension of a FG-MOSFET lower sensitivity sensor have a salicide layer or a silicide layer formed thereon.

The invention discloses an automatic design method for digital chip module link. The automatic design method adopts a module linking automatic design technology which comprises a module interface definition requirement, a module instantiation requirement, a file FileList file format requirement and the like; the invention has the characteristics of directness, flexibility, conciseness and expansibility, module link automation and batch script processing are achieved, module link automation is achieved, the integration efficiency is high, and the error probability is low; module interfaces are unified and standardized, modules can be integrated, and reusability is high; top-level designers and module designers can design in parallel, and the project research and development progress is accelerated.

The invention provides an integral accumulation storage circuit which receives a compensation current Iin, generates a regulation voltage Va in an analog voltage form and outputs an accumulation value Dint in a digital signal form with bit width of N bits, and the amplitude of the regulation voltage Va and the value of the accumulation value Dint are determined by the integral value of the compensation current Iin on time. The integral accumulation storage circuit can be integrated into a control chip; the cost is low and the compatibility is good; an integral operation function and a storage function of a compensation capacitor are decomposed, a counter in a digital form is used for undertaking the storage function, a charge balance module composed of a switch and a capacitor is used for adjusting integral operation, and integral operation overflow is avoided; the inherent quantization error of the counter in the digital form is eliminated through an error elimination module, and an analog integral voltage without the quantization error is obtained; the input compensation current and the output integral voltage are decomposed to two mutually independent circuit nodes, so that the input impedance is remarkably reduced, and the input signal range is remarkably widened.

The invention discloses an automatic processing practical training system based on a single-chip microcomputer, and the system comprises a main command signal input circuit, an input interface circuit, an input level conversion circuit, the single-chip microcomputer, an output level conversion circuit, an output interface circuit and a display circuit, wherein the main command signal input circuit, the input interface circuit, the input level conversion circuit, the single-chip microcomputer, the output level conversion circuit, the output interface circuit and the display circuit are sequentially in circuit connection. The main command signal input circuit carries out the data communication with the single-chip microcomputer, the input interface circuit is connected with a processing platform detection circuit, and the output interface circuit is connected with a processing drive circuit. The single-chip microcomputer receives a main command signal of the main command signal input circuit and the processing state information of the processing platform detection circuit, sends a corresponding control signal according to the requirements of the control technology, and drives the processing drive circuit to complete the processing of the workpiece. The system consists of an independent processing control system, the processing platform detection circuit and the processing drive circuit, is good in compatibility, can be connected with the input/output circuits at different control points to form a single-chip microcomputer practical training teaching system, provides a brand-new practical training equipment for the teaching of the single-chip microcomputer, is reliable, and is low in cost.

The invention discloses a speech synthesis method capable of being used for a chip end. The speech synthesis method comprises the following steps: step 1, calculating a pulse excitation seed signal and a noise excitation seed signal; step 2, solving an excitation signal according to the fundamental frequency F0 of the given voice and the band-shaped aperiodic ratio ap; and step 3, for each frame of frequency spectrum envelope of the given audio, calculating corresponding audio data, and then performing superposition according to frame shift to obtain a final voice waveform. According to the method, the required pulse excitation seed signal is calculated off line in advance, only multiplication and addition operation is performed when periodic excitation and non-periodic excitation are calculated, Fourier transform and inverse Fourier transform are not involved, and the operation speed of the vocoder at a chip end is increased.

The invention discloses a data concentrator for an electric power operation and maintenance system. The system comprises an upper shell and a bottom shell. The upper shell and the bottom shell are connected in a clamped mode, and are locked through screws. A display screen is mounted on the surface of the upper shell. A function button area is arranged below the display screen. A plurality of function buttons are arranged in the function button area. One side of the function button area is provided with an alarm horn and an alarm indicating lamp. One side of the bottom shell is provided with adata interface, a USB interface and a power interface. A circuit board is installed in a cavity defined by the upper shell and the bottom shell, a main control chip, a data collector unit, a data preprocessing unit, a cache unit, an Ethernet unit and a wireless communication unit are installed on the circuit board. The data concentrator is simple in working principle, and rapid collection and transmission of electric power operation and maintenance data can be achieved, and the background monitoring efficiency is improved.

The invention provides an RTK positioning method and device, a GNSS positioning chip, an RTK positioning module, a mobile terminal and a computer readable storage medium. According to the method, after RTK positioning at the current moment is completed by using base station data before switching, a high-precision positioning result can be quickly output, seamless switching of the base stations is realized, and then a single-difference ambiguity floating point solution at the current moment is compensated by using observation data of new and old base stations to obtain a floating point calculation result at the current moment. The resolving result can be used during RTK positioning resolving at the next moment, the single-difference ambiguity convergence result obtained in the original RTK positioning resolving process is fully utilized, and continuous output of high-precision positioning results above centimeter level can be achieved after base station switching without convergence again. For the user, the switching of the base station does not influence the continuous provision of the positioning result at all.