39results about How to "Small size of hardware" patented technology

A solution for signal detection in a radio receiver receiving multicarrier signals is disclosed. According to the provided solution, the radio receiver receives a radio signal and converts the received radio signal into digital samples. Since a desired signal being detected occupies only a portion of subcarriers of a signal the radio receiver is configured to receive, the received signal is heavily oversampled. A detection procedure may be simplified by utilizing this oversampling. A relation between the known total bandwidth of the desired signal and the total bandwidth of the received radio signal may be calculated, and utilized in the actual signal detection. The signal detection is based on sliding correlation in which the samples of the received signal are correlated with a reference signal with different phase shifts between the two signals. As the result of the correlation, the received signal is determined to be either the desired signal or noise.

A peripheral interface device for determining the color of a surface, where the surface color may then be used to determine device position and identify objects. Embodiments provide a device capable of directing different colors of light (e.g., red, green and blue) onto a surface and measuring relative intensities of the reflected colors to determine the color of the surface. The reflection and measurement of each color may be performed separately. Alternatively, composite-colored light may be directed at the surface, which may then be filtered to extract the different colors and enable measurement of their relative intensities. As such, the device can detect regions of a given color and regions of different shades of the same color, which may then be used to determine the position of the device and/or identify an object.

To implement an operation in Jacobian with improved computation complexity, the sum is computed of a divisor D₁=g.c.d. (a₁(x),y−b₁(x)) and a divisor D₂=g.c.d. (a₂(x),y−b₂(x)) on Jacobian of a hyperelliptic curve y²+y=f(x) defined over GF(2ⁿ) by: storing a₁(x), a₂(x), b₁(x) and b₂(x); and calculating q(x)=s₁(b₁(x)+b₂(x)) mod a₂(x) by using s₁(x) in s₁(x)a₁(x)+s₂(x)a₂(x)=1 in case of GCD(a₁(x),a₂(x))=1 where GCD denotes a greatest common polynomial. Thus, a new function q(x) is provided so as to reduce the entire computational complexity and the hardware size. Moreover, in the case of D₁=D₂, a₁(x) and b₁(x) is stored; and q(x)=Q(b₁²(x)+f(x) mod a₁²(x), a₁(x)) where Q(A,B) is a quotient of A/B is calculated.

An apparatus and method for electrical charge balancing when generating a stimulus during functional neural stimulation is presented. A stimulus pulse is generated (cathodic or anodic), and after a selected delay a charge compensating pulse is generated of an opposite polarity. The electrode circuit discontinuously examines electrode voltage after termination of the stimulus pulse, and utilizes this voltage to determine how long to extend the width of the charge compensating pulse. The electrode circuit thus performs accurate electrical charge cancellation to remove residual charges from the electrode by precisely controlling pulse width for an opposing polarity compensating pulse that need not have the same current level as the stimulus pulse.

A cache memory of the present invention includes: for each cache entry, way 0 to way 3 which hold use flags U indicating whether or not the use flags U have been accessed; and a control unit which: updates, when a cache entry is hit, a use flag U corresponding to the hit cache entry so that the use flag U indicates that the cache entry has been accessed; and reset, in the case where all other use flags in the same set indicates that the cache entries have been accessed herein, the all other use flags so that the use flags indicate that the cache entries have not been accessed; and select a cache entry to be replaced from among the cache entries corresponding to the use flags indicating that the cache entries have not been accessed.

A transcoder for resizing video data and outputting the resized video data to a reproduction apparatus. The reproduction apparatus reproduces the resized video data by repeating a display period and a non-display period alternately. The transcoder includes: a resizing unit that resizes the video data; and a control unit that causes the resizing unit to resize the video data to first video data having a first resolution so that the reproduction apparatus displays one image during each display period, and causes the resizing unit to resize, during each period between the resizing of the video data to the first video data, the video data to second video data having a second resolution that is lower than the first resolution.

Disclosed is a demodulation circuit for demodulating an IF signal which is input via an antennal and then over-sampled at a sampling rate four times a frequency of a baseband signal, the demodulation circuit including a mixer for converting the IF signal down to a baseband signal using a coefficient corresponding to either sine values or cosine values, a DEMUX for dividing the down-converted baseband signal into a plurality of signals, and a PPF having a plurality of sub-filters for filtering the divided signals input from the DEMUX and a plurality of adders for operating the output signals of the sub-filters. As a result, the demodulation circuit can be realized in a small hardware size and is capable of reducing power consumption.

The present invention can detect watermark information from motion picture of various scanning methods and various picture sizes without causing increase of a memory capacity.

A watermark information detection apparatus 1 converts encoded watermarked motion picture 4 into standard motion picture 5 having the smallest data size among the assumed kinds of motion picture. Further, the watermark information detection apparatus 1 scales a standard coordination system that is utilized for specifying embedding locations of a watermark pattern. Then, with respect to each field of the standard motion picture 5, watermark information is detected from predetermined locations specified in the scaled standard coordinate system by the watermark pattern.

The invention provides mobile communication equipment with a capacitive type sliding key and an operation method thereof. An effective touch area of a touch screen is lengthened by a part, so that the lengthened part is not overlapped with a display area and serves as the capacitive type sliding key, the capacitive type sliding key is connected with a setting module, an operation control module and a judging module, the mobile communication equipment can perform multiple commonly-used operations such as corresponding returning, returning to a homepage and entering a background when the capacitive type sliding key receives different touch information through common settings, and therefore functions of physical keys or virtual keys arranged on the lower portion of a traditional mobile phone can be achieved. According to the mobile communication equipment, the physical keys do not need to be arranged, the hardware size of the mobile communication equipment is reduced, the virtual keys also are not arranged, and the system resource cost can be reduced; the mobile communication equipment is operated through an operating block, the position of the touch information is not fixedly limited, related function performing areas and modes are flexible and changeable, and one-hand operation can be conveniently achieved when the equipment is held.

The invention provides an intelligent voice-to-text and simultaneous translation system based on a microphone array. The intelligent voice-to-text and simultaneous translation system can remove or reduce a plurality of competitive interference noises in real time; a target sound source is intelligently recognized, and enhancement processing of a target voice signal is realized; then, the voice-to-text and simultaneous translation functions are further realized; and the equipment is small in size and easy to carry. In the technical scheme of the invention, a pickup system composed of double microphones (microphone arrays) based on core hardware is used for picking up voice signals. A module based on digital signal processing (DSP) intelligently selects target voice in real time and removesor reduces competitive interference noise in real time. The intelligent voice-to-text and simultaneous translation system is used in cooperation with a mobile phone capable of converting voice into characters and translating, target voice signals can be intelligently recognized in real time in a multi-competitive interference noise environment, target voice is enhanced, and finally the functions of converting voice into characters and translating at the same time are achieved.

The invention provides an MEMS resonant gyroscope interface circuit and a measurement and control system. The device uses a ring oscillator to collect a small capacitance signal of a gyroscope instrument head to obtain a square wave signal, the square wave signal is inputted to a main control chip to detect the square wave frequency, and the displacement amount of the instrument head is measured.Compared with an analog-to-digital converter and the peripheral circuit thereof, the signal acquisition scheme circuit greatly reduces the number of electronic components and compresses the hardware volume of the gyroscope measurement and control system. The system uses the main control chip to directly generate an analog signal, the analog signal enters a buffer module circuit to be outputted tothe gyroscope instrument head, most of the work in the signal output scheme is completed in the main control chip, the peripheral circuit only has the buffer module circuit, and in comparison with theanalog-to-digital converter and the peripheral circuit thereof, the number of electronic components is greatly reduced, and the hardware volume of the gyroscope measurement and control system is compressed. The MEMS resonant gyroscope interface circuit and the measurement and control system have the advantages that the cost is compressed, the signal-to-noise ratio is improved, temperature drift is controlled, the energy consumption can be controlled, the startup time is short and the like.

The invention provides a new energy mobile house, which includes a box-type house body, an off-grid photovoltaic power generation system, an ash water recovery and purification system, a black water treatment system and a water production system. The box-type house body includes a steel structure frame, a bottom plate, a top plate and a plurality of insulation walls. The bottom plate, the top plate and the insulation walls are fixedly connected with the steel structure frame. At least one spatial region is formed inside the steel structure frame. At least one door and at least one window are arranged on the insulation walls. The new energy mobile house is mobile and beautiful, can be installed quickly, and can provide sufficient generation power, solve the problem of domestic sewage and realize refrigerating and heating. Moreover, the new energy mobile house can be used to produce domestic water and cultivate vegetables, melons and fruits to meet part of the food demand, and a naturaloxygen bar can be realized in the house to fundamentally meet the life demand.

Disclosed is a non-invasive diabetes prediction system based on photo plethysmo graphy. The non-invasive diabetes prediction system comprises an optical signal emitter, a driving circuit, a receivingcircuit and a processor module, wherein the optical signal emitter is driven by the driving circuit to obtain an optical signal with fixed wavelength and intensity and emit the optical signal; the receiving circuit is used for converting the received optical signal of the photo plethysmo graphy into an electric signal of the photo plethysmo graphy, carrying out amplification filtering and digital-to-analog conversion, and sending a digital signal of the photo plethysmo graphy to the processor module; and the processor module is used for carrying out signal processing, feature extraction and modeling prediction on the digital signal of the photo plethysmo graphy, and visually displaying the digital signal of the photo plethysmo graphy. According to the noninvasive diabetes prediction systemand method based on the photo plethysmo graphy, noninvasive, real-time and convenient diabetes screening and illness risk prediction can be achieved.

The invention discloses a data transmission method of a labor service real name system based on an NB-IoT mode, the method comprises the following steps: first, the field client obtains the data of real-name labor service personnel from the cloud through the Internet, and transmits the data to the special board of real-name labor service system through the LAN; 2, a labor service real-name systemspecial board card pushes the data of the labor service personnel to a real-name system data acquisition device; 3, the real-name system data acquisition device judges the authority of the labor personnel according to the data of the labor personnel, and actually generates attendance records of the labor personnel; the real-name system data acquisition device transmits the attendance record to thelabor service real-name system special board card in real time. 4, real-time displaying and storing attendance records on a labor service real-name system special board, and passing the attendance records through the NB at a fixed time or in real time; the IoT network is delivered to the cloud server. The invention optimizes the problem that the labor service system is highly dependent on the wired Internet and the wired LAN, solidifies the software function into the special hardware, hardware the software function, and simplifies the installation and maintenance of the system.

The invention relates to the field of electronic circuits. In order to solve the problem that the reference voltage of an existing operational amplifier circuit cannot be adjusted, the invention provides an operational amplification circuit capable of adjusting the reference voltage value, which comprises a reference voltage adjusting circuit and a sampling signal amplification circuit. the reference voltage adjusting circuit comprises a power input terminal, the sampling signal amplification circuit comprises a signal input terminal and a signal output terminal, and the reference voltage adjusting circuit is connected with the sampling signal amplification circuit; The reference voltage regulating circuit regulates a voltage value input by a power supply and then inputs the voltage valueas reference voltage to the sampling signal amplifying circuit; And the sampling signal amplification circuit amplifies a sampling signal input by the signal input terminal and outputs the amplifiedsampling signal to the signal output terminal. The reference voltage of the amplifying circuit can be flexibly adjusted while a sampling signal is effectively amplified through the reference voltage adjusting circuit, and the amplifying circuit is suitable for signal amplifying occasions with different reference voltage requirements.

The invention discloses a force-controlled joint real-time industrial Ethernet communication circuit, which belongs to the technical field of robots and communication. The force-controlled joint real-time industrial Ethernet communication circuit comprises a power supply module, a first network port module, a second network port module, an MCI microprocessor interface and an ESC chip module. The force-controlled joint real-time industrial Ethernet communication circuit has the functions of EtherCAT real-time industrial Ethernet communication and motion control, and is mainly applied to servo slave station control communication of a robot force-controlled joint. By adopting the ESC chip, the hardware volume of the EtherCAT real-time industrial Ethernet communication circuit is reduced, and the processing load of a slave station control microprocessor and the cost of an integrated IP core are reduced at the same time.

The invention provides a clock generation circuit and generator, and the method comprises the steps: firstly carrying out the phase sampling of a first signal according to a reference signal, then carrying out the low-pass filtering, and extracting a low-frequency clock phase signal; meanwhile, conducting phase sampling on the second signal according to the reference signal, then conducting band-pass filtering, and extracting an intermediate-frequency clock phase signal; and then superposing and synthesizing a clock phase signal output by the low-pass filter and a clock phase signal output bythe band-pass filter, then carrying out smoothing processing on the synthesized signals through a phase-locked loop, and outputting a slowly changing clock signal; and finally, performing phase adjustment on the clock signal output by the phase-locked loop by referring to the long-term frequency stabilization signal, and enabling the phase to be consistent with the phase of the long-term frequencystabilization signal by increasing and decreasing the phase so as to output a high-stability clock signal. The circuit provided by the embodiment of the invention is simple to implement, requires fewer added elements, and is small in hardware size and low in cost.

The embodiment of the application provides a face registration method, a face recognition device, a recognition device and a storable medium. The face registration method is applied to face recognition equipment and comprises the following steps: collecting a face picture (101); transmitting the acquired face picture to a mobile terminal independent of the face recognition equipment for the mobile terminal to display in real time (102); fusing the collected face pictures to obtain face 3D registration data (103); information indicating completion of registration is sent to the mobile terminal (104). The invention also provides a face recognition device, a face recognition device and a computer readable storage medium. By adopting the scheme, the hardware volume of the face recognition equipment is reduced, the cost of the face recognition equipment is reduced, and meanwhile, the user can be ensured to have better use experience.

The invention discloses an autonomous navigation system for a miniature underwater detection robot, and belongs to the technical field of AUV (Autonomous Underwater Vehicle) underwater navigation. The obstacle avoidance sonar sensing unit is used for detecting underwater landforms and scanning underwater objects to avoid collision when the underwater robot performs autonomous navigation; the magnetometer is used for acquiring magnetic field intensity and direction; the inertial measurement unit is used for acquiring a three-axis attitude angle, an angular rate and an acceleration; the data recorder is used for storing measurement results acquired by the obstacle avoidance sonar sensing unit, the magnetometer and the inertial measurement unit; the analog-to-digital converter is used for converting the analog signal into a digital signal; the input and output module is used for inputting and outputting data; the autonomous navigation system for the miniature underwater detection robot does not depend on an external sensor, does not need to arrange a sound wave communication positioning node, does not need to emerge from the water surface to combine GNSS signals, and achieves the purpose of long-time, independent and autonomous underwater navigation.

The invention discloses a conveying belt tear detecting method based on FPGA. The method comprises the steps that real-time videos during operation of conveying belts are recorded; images are pretreated in the videos frame by frame; each frame of pictures are sent into a frame caching module in sequence; standard images and images to be detected are synchronously extracted from the frame caching module for a background difference algorithm; and the real-time tear detection of the conveying belts is realized through comparison of algorithm return values and thresholds. The method realizes real-time detection of tear damage through an OV5640 image sensor and a FPGA chip, prevents use of a high-performance computer and multiple sensors to greatly save the cost, and uses FPGA for the background difference algorithm to effectively improve the identification precision and to reduce the identification error rate.

The invention discloses a multi-channel CNS cooperative exciter based on a synthesis instrument and a control method, and the CNS cooperative exciter comprises the synthesis instrument which comprisesa plurality of excitation sources, each excitation source is connected with an output channel through a radio frequency switch, the output channel comprises two output ports. The radio frequency switch is used for selecting one output port to output an excitation signal and transmitting a trigger signal for synchronizing a plurality of excitation sources by adopting a star-shaped trigger bus; thetouch screen is used for collecting control information and displaying the waveform of the excitation signal; and the touch screen is used for collecting control information and displaying the waveform of the excitation signal. According to the invention, the functions of multiple devices are integrated into one device through the PXI bus module, so that the hardware size of the device is greatlyreduced; besides, all modules in the PXI case are synchronized through the star-shaped trigger bus, so that the excitation sources synchronously output excitation signals, real-time cooperative workof multiple excitation signals is achieved, and the method can be widely applied to the technical field of radio.