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55results about How to "Reduce cost and power consumption" patented technology

Method and system of three-dimensional video call

The invention belongs to the field of communication technology and provides a method and system of three-dimensional video call. The method comprises: a step of call connection establishment, wherein three-dimensional video call connection is established between a calling terminal and a called terminal; a step of image information conversion, wherein the calling terminal uploads the acquired first two-dimensional image information to at least one image processing server, and the called terminal uploads the acquired second two-dimensional image information to at least one image processing server; and a step of image information display, wherein the image processing server converts the first two-dimensional image information and the second two-dimensional image information into the first three-dimensional image information and the second three-dimensional image information respectively, sends the first three-dimensional image information to the called terminal to display, and sends the second three-dimensional image information to the calling terminal to display. Through the invention, the quality and speed of the three-dimensional video call of the terminal are improved, and the energy consumption of the terminal is reduced.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Optical scanning device and imaging apparatus implementing the same

In an optical scanning device, a resin lens having a power that is an inverse (negative) power of a scanning lens is implemented in an optical system placed before a deflector so that a change in beam pitch caused by environmental temperature change can be prevented even when a resin lens is used as the scanning lens. To realize optical scanning using this device, a bundle of rays emitted from a plurality of light sources is coupled into a desired state by a coupling lens, after which the bundle of rays is incident on a resin lens. The surface of incidence of this resin lens has a spherical surface configuration with a negative power, and the exit surface of this resin lens has a cylindrical surface configuration with a negative power only in the sub scanning direction. Then, the bundle of rays passes through a resin lens that has a negative power only in the sub scanning direction and then enters a glass toroidal lens. A light deflector deflects the bundle of rays from the toroidal lens and the deflected bundle of rays is incident on a third optical system that compensates for a field curvature in each of the main scanning direction and the sub scanning direction, and focuses the bundle of rays onto a surface to be scanned while securing a desired beam pitch in the sub scanning direction.
Owner:RICOH KK

Real time panoramic live broadcast system and method

The invention discloses a real time panoramic live broadcast system and method. The system comprises a panoramic camera lens module, an FPGA (Field Programmable Gate Array) chip, a microphone, a videoprocessing chip and a communication module, wherein the panoramic camera lens module is used for acquiring video data; the FPGA chip is connected with the panoramic camera lens module to receive thevideo data acquired by the panoramic camera lens module, and perform image splicing processing on the video data; the microphone is used for acquiring the audio data; the video processing chip is connected with the FPGA chip and the microphone respectively, and used for receiving audio data and the video data being subjected to the image splicing processing and performing compression coding on theaudio data and the video data respectively to encapsulate the audio data and the video data into a multimedia stream file including standard formats of video and audio; and the communication module is connected with the video processing chip, and used for pushing the multimedia streaming file to realize live broadcast. Through adoption of the real time panoramic live broadcast system and method,parameters of live broadcast image resolution, code rate and the like can be set adaptively according to a protocol of a live broadcast platform; secondary transcoding does not need to be performed through a panoramic live broadcast platform server; and time delay in a live broadcast process is reduced greatly.
Owner:CHANGSHA PANODUX TECH CO LTD

Airborne multispectral video image collection and processing method

The invention provides an airborne multispectral video image collection and processing method which is characterized in that spectrum marking and spectrum identification are respectively introduced in airborne video image collection and processing phases, self-adaptive perception with regard to different spectrums is achieved, and automation of the whole work process is realized. In the airborne video image collection phase, a rotary band-pass filtering sheet is added in front of a photoelectric imaging system to generate specific character codes from spectrum information according to a definition rule set in advance, and the collected image information and the character codes referring to the spectrum information are packaged and then are output in a certain video format; and in the airborne video image processing phase, the received video signals are unpackaged, the video signals are decomposed into the corresponding image information and the character codes referring to the spectrum information, and the character codes are identified according to the definition rule set in advance, the real meaning of the referred spectrum information is recovered, and an image processing module selects a corresponding algorithm for image processing.
Owner:XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA

Three-dimensional head-related impulse response data compressing method based on canonical multi-decomposition

ActiveCN104318064ASolve the problem of large storage consumptionReduce cost and power consumptionSpecial data processing applicationsEngineeringData compression
The embodiment of the invention provides a three-dimensional head-related impulse response data compressing method based on canonical multi-decomposition. The method comprises the steps that a processor performs canonical decomposition on a three-dimensional head-related impulse response data set to obtain three two-dimensional matrixes; the processor initializes the three two-dimensional matrixes; the processor iterates and updates the three initialized two-dimensional matrixes to obtain coefficient matrixes corresponding to the three two-dimensional matrixes; the processor calculates the reconstruction approximation degree of the three iterated two-dimensional matrixes; the processor judges whether an absolute value of difference between the two reconstruction approximation degrees, obtained by two adjacent iterations, of the three two-dimensional matrixes is smaller than 10<-4>; if so, the processor stops iteration and stores the three two-dimensional matrixes in a local cache, and otherwise, the processor returns to the third step until the iteration is completed. According to the method provided by the embodiment of the invention, the problem that an HRFT (Head Related Transfer Function) database is high in storage consumption is solved, and the power consumption and the cost of a chip used in practical application are reduced.
Owner:DALIAN UNIV OF TECH

Self-unloading one-way valve type cylinder head and valve plate assembly

The invention belongs to the technical field of vent valve banks of air compressors and particularly relates to a self-unloading one-way valve type cylinder head and valve plate assembly used on a cylinder port of the air compressor. The self-unloading one-way valve type cylinder head and valve plate assembly comprises a valve plate, wherein an air inlet and a vent hole are formed in the middle part of the valve plate, an inlet valve sheet assembly which is used for controlling unidirectional communication of the air inlet is arranged on the lower side of the valve plate; the vent hole is in threaded connection with a one-way valve; an unloading hole is formed in the valve plate; and an unloading valve is fixed on the unloading hole and is in threaded connection with the unloading hole. According to the invention, the one-way valve is in threaded connection with the vent hole on the valve plate, an integral and straight-through design of the vent valve bank and the one-way valve is adopted, and meanwhile, the one-way valve is directly and tightly screwed on the vent hole of the valve plate, so that simple, safe and reliable cooperation is achieved; and when an aerodynamic thrust on the lower side of the valve plate is less than a spring force of the one-way valve, the one-way valve is closed, and both the power consumption and the cost of the air compressor applying the self-unloading one-way valve type cylinder head and valve plate assembly can be reduced.
Owner:浙江盛源空压机制造有限公司

Data transmitting method and device for base station, data transmitting method and device for narrowband user equipment and data receiving method and device for narrowband user equipment

The embodiment of the invention relates to a data transmitting method and device for a base station, a data transmitting method and device for narrowband user equipment and a data receiving method and device for the narrowband user equipment. The data transmitting method for the base station comprises the steps of carrying out time domain-frequency domain transformation processing on data signals which are about to be sent to the narrowband user equipment; and carrying out orthogonal frequency division multiplexing processing on the data signals processed through time domain-frequency domain transformation processing and the data signals which are about to be sent to broadband user equipment, thereby sending the data signals. According to the scheme provided by the embodiment of the invention, only pure time domain narrowband processing is carried out at a narrowband user equipment side, so the narrowband user equipment is simplified, and the cost and power consumption are reduced. Moreover, narrowband and broadband waveform aggregation is realized, the spectrum efficiency of a whole system is improved. Due to high demands of machine type communication equipment for the cost and power consumption, the method and the device are relatively applicable to machine-to-machine communication.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD

Adaptive-radar ratio method based cantilever micro-nano microwave detection and demodulation system-on-chip

InactiveCN108279405AReduce cost and power consumptionImproved immunity to noise and interferenceWave based measurement systemsMicrowave frequencyCantilever
The invention relates to an adaptive-radar ratio method based cantilever micro-nano microwave detection and demodulation system-on-chip which mainly comprises a six-port cantilever coupler, a microwave frequency detection module, a microwave phase detection module and a microwave power detection and demodulation module. The adaptive radar consists of an antenna, a receiving and transmitting conversion circuit, an MEMS (micro-electromechanical systems) microwave detection and demodulation integral system-on-chip, a signal storage unit, a signal analyzer, a microwave signal reconstruction unit,a microwave signal modulator and a microwave signal power amplifier. As an indirect-heating microwave power sensor utilizes a polysilicon nanowire cluster to form a thermocouple arm, the thermal conductivity is lower than that of the conventional materials, high thermoelectric conversion efficiency is achieved, the flexibility of the microwave detection system can be improved greatly, simultaneously synchronous detection of power, frequency and phase of microwave signals and demodulation of modulated signals can be completed, and thus, the adaptive-radar ratio method based cantilever micro-nano microwave detection and demodulation system on chip is implemented.
Owner:SOUTHEAST UNIV

Sensing, storing and calculating integrated circuit structure for realizing positive and negative weight calculation in pixels

The invention belongs to the technical field of image sensing and integrated circuits, and particularly relates to a sensing, storing and calculating integrated circuit structure for realizing positive and negative weight calculation in pixels. According to the circuit, a positive and negative weight selection unit module is used for shunting induced current generated by a CMOS active pixel unit module during illumination, then a summing and differencing operation circuit module is used for operating and converting the current, and finally a voltage sampling circuit module is used for periodically sampling voltage signals. Compared with a traditional in-memory calculation circuit, the sensing, storing and calculating integrated circuit structure for realizing the positive and negative weight operation based on the pixels utilizes a CMOS active pixel structure to realize sensing, uses a positive and negative weight selection tube and a 6T SRAM as storage and an operational amplifier as a calculation unit, and integrates sensing and in-memory calculation, the sensing data calculation speed of the circuit can be greatly improved, the integration level is high, the structure is simple, and the power consumption is low.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
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