37results about How to "Efficient signal transmission" patented technology

A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level of the input signal is determined based on the known offset and on the result output from the decision circuit. With this configuration, a large common mode voltage can be eliminated in a circuit used for signal transmission.

An interconnect substrate is placed over a first inductor of a semiconductor chip and a second inductor of another semiconductor chip. The interconnect substrate includes a third inductor and a fourth inductor. The third inductor is located above the first inductor. The distance from the first inductor to the third inductor is longer than the distance from the second inductor to the fourth inductor.

A touch display device and a manufacturing method thereof are provided. The touch display device includes a flexible touch display panel, a plurality of first pads, a plurality of touch electrodes and a plurality of conducting wires. The flexible touch display panel includes a first bending area bending along a first bending axis. The first pads are disposed on the flexible touch display. The touch electrodes are disposed on the flexible touch display. The conducting wires are disposed on the flexible touch display. A plurality of first terminals of the conducting wires is electrically coupled to the touch electrodes respectively, and a plurality of second terminals of the conducting wires is electrically coupled to the first pads respectively. Conducting wires having a direction different from the axial direction of the first bending axis are not disposed in the first bending area of the flexible touch display panel.

A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level of the input signal is determined based on the known offset and on the result output from the decision circuit. With this configuration, a large common mode voltage can be eliminated in a circuit used for signal transmission.

The invention discloses an audio-video wireless transmission system and a transmission method, wherein, the system comprises a wireless audio-video central station and a wireless audio-video mobile terminal; when the central station and the mobile terminal carry out audio-video wireless transmission by adopting a WLAN transmission channel, the wireless audio-video central station detects the quality of a signal transmitted from the wireless audio-video mobile terminal in real time; when the signal quality is reduced to an early warning value, the two adopt a multicarrier transmission channel, a central station image is synchronously switched to the multicarrier transmission channel; and the WLAN transmission channel keeps monitoring, when the signal quality of the WLAN transmission channel is increased to a preset value, an interface of the WLAN transmission channel is restored, and the multicarrier transmission channel is cut off. The invention organically combines the WLAN and multicarrier proposal together, realizes the full utilization under different source conditions, and reliably realizes the real-time transmission of audio-video and data under the complex environment.

The invention relates to a control method of an electric vehicle simulating engine flameout condition of a fuel vehicle, a system and the electric vehicle, wherein the control method comprises a stepof simulating a working state of a manual gear shift, an engine speed simulation step, a data acquisition step, a shift judgment step, a Vehicle speed judging step, A timing step and a flameout signaltransmission step, By obtaining the current speed of the electric vehicle, engine simulation rotational speed and current gear value, judging and comparing with corresponding threshold value, entering timing according to judging and comparing result and sending out flameout signal according to judging according to timing, the series of specific steps are finished, , thus finally realizing the fuel vehicle engine flameout condition simulation of electric vehicle , The electric vehicle can truly and reliably simulate all kinds of situations in which the traditional fuel vehicle stops because ofthe improper operation of the driver in the driving school study or test process, so that the operation method and operation result of the electric vehicle and the traditional fuel vehicle are consistent, and the electric vehicle can be applied in the driving school.

The invention discloses an eight-way server based on connector via hole design. The eight-way server comprises four calculating boards; each calculating board is provided with two CPUs, two of the calculating boards are located on one side of a backing board of the eight-way server, and the other two of the calculating boards are located on the other side of the backing board of the eight-way server; one side of the backing board is further provided with a first backing board connector, the other side of the backing board is provided with a second backing board connector, and the first backing board connector and the second backing board connector share a same connector hole site located on the backing board. According to the eight-way server, the four calculating boards are evenly distributed on the two sides of the backing board, the backing board connector on one side of the backing board and the backing board connector on the other side of the backing board share the same connector hole site located on the backing board, therefore, the connected bus distance on the backing board is decreased by the longitudinal distance of one calculating board, the physical length of connected buses is decreased, the signal integrity is improved, and the server can conveniently achieve effective signal transmission.

Disclosed is a flexible circuit cable with at least two bundled wire groups. The circuit cable has first and second ends respectively connected to first and second connection sections. The circuit cable includes a cluster section, which is formed of a plurality of cluster wires formed by slitting the circuit cable, in an extension direction of the cable, at a predetermined cut width. The cluster section includes at least two independent bundles, which are formed by dividing the cluster wires of the circuit cable into different signal groups according to electrical signals transmitted therethrough. Bundling members are used to the cluster wires of the independent bundles according to predetermined bundling modes. Further, the circuit cable has a surface forming a shielding conductive layer for electromagnetic interference protection and impedance control for internal signals of the circuit cable.

The invention relates to a co-cable transmission device and method for a small remotely controlled underwater robot. The co-cable transmission device comprises a water module and an underwater module, and the water module and underwater module are connected through a transmission co-cable for transmitting radio frequency / alternating current power supply signals. The method includes that using a carrier technology to modulate video and data signals, after compounding with the alternating current power supply signals, realizing multi-signal transmission through a single-core coaxial cable. The co-cable transmission device for the small remotely controlled underwater robot comprises the water module and underwater module connected by the co-cable; the co-cable transmission device is low in cost, high in transmission quality, strong in anti-interference performance, capable of simultaneously transmitting power supply signals and two kinds of different radio frequency signals on the same cable, and suitable for the small remotely controlled underwater robot.

The invention discloses an interactive coupling multidimensional intelligent collapsed rockfall monitoring system and method, and belongs to the technical field of geological disaster prevention and control. The system specifically comprises a rockfall sensing system, a signal transmission system, an information processing system and a sound and light alarm system; the rockfall sensing system is used for intercepting the collapsed rockfalls and transmitting rockfall information to the information processing system through the signal transmission system, and the information processing system isused for issuing a rockfall early warning instruction to the sound and light alarm system and issuing the rockfall early warning instruction to the public in a sound and light alarm mode. The systemhas the function of LoRA local area ad-hoc network, the system is accurate in monitoring data, high in operational reliability, low in error rate and low in power consumption, and the problems of poorcommunication signals and insufficient lighting in dangerous areas such as alpine canyon areas are well solved.

The invention relates to a production process of an environment-friendly microwave ceramic copper-clad plate. The environment-friendly microwave ceramic copper-clad plate is mainly applied to the fields meeting high-end requirements, such as microwave and millimeter-wave satellite communications. The process comprises the following steps of: carrying out modification treatment on the surface of glass fiber cloth and immersing in synthetic slurry to form a prepreg; rolling or cutting and laminating, and anchoring a copper foil; then carrying out cold machine pre-pressing to evacuate air; and under the vacuum condition of 10-20 Kpa, keeping the pressure of a hot pressing machine at the temperature of 350-400 DEG C and at the pressure of 15-20 Mpa to be cured for 1-2 hours to prepare the product. The environment-friendly microwave ceramic copper-clad plate has microwave high-frequency low dielectric epsilonr, low loss tan delta, efficient signal transmission and high stability.

The invention discloses a cable collecting and releasing mechanism of a feed cabin of a radio telescope, wherein the feed cabin is hung at the upper part of an antenna through a plurality of suspended cables, the suspended cables bypass the tops of a plurality of supporting towers and are connected with a cable rolling mechanism; the feed cabin is connected with a cable, and through the driving of the cable collecting and releasing mechanism, the cable can be collected and released while the suspended cables move in and out. The cable collecting and releasing mechanism comprises a plurality of detachable rope clips that can be connected with the suspended cables in a cohesion manner or in a disconnected manner, wherein the cable is fixed with the detachable rope clips; one end of a drawing steel wire rope is fixed with the detachable rope clip which is far from the final end of the feed cabin, and the other end thereof is connected with the feed cabin; the detachable rope clips are sequentially connected in series and fixed on the drawing steel wire rope; a cable storage device is arranged around the periphery of two opposite supporting towers, and the detachable rope clips can be stored in the cable storage device; and the supporting tower is provided with a detaching device. The cable collecting and releasing mechanism can effectively protect the cables in the moving process of the feed cabin, thereby prolonging the service life of the cables and improving the stability and convenient maintenance of the mechanism.

The method executed in a wireless local area network (WLAN) system, according to various embodiments, may comprise: a step in which a reception station (STA), which supports a multilink comprising a first link and a second link, receives a target wake time (TWT) element via the first link, wherein the TWT element is received via a beacon and includes information for TWT period configuration for the second link; a step in which the reception STA configures a TWT period for the second link on the basis of the TWT element; and a step in which the reception STA communicates with a transmission STA via the second link within the TWT period.

A stacked multi-port connector includes a holder member defining multiple rows of mating slots at different elevations, and an electrical module, which includes terminal blocks accommodated in the holder member and holding mating terminals in the mating slots, filter modules electrically coupled with the mating terminal and respectively attached to the terminal blocks, plate members respectively attached to the filter modules and holding therein conducting terminals, that are electrically coupled with light-emitting devices of a light-emitting module at the top side of the holder member, and metal shielding members respectively attached to the plate members between the conducting terminals and the circuit boards of the filter modules to protect signal transmission through the mating terminals from electromagnetic interference.

The invention belongs to the technical field of electronic test and measurement and particularly relates to a broadband high-gain magnetic field annular test antenna based on a resonance principle. The broadband high-gain magnetic field annular test antenna based on the resonance principle is characterized by at least comprising a test handle, a resonance control circuit, a control panel, an antenna radiator, an antenna box body, a locating pull rod, a locating screw, a limit lever, a wave band switch and an N-shaped radiofrequency connector, wherein the antenna radiator is arranged in the antenna box body, the locating pull rod bestrides the antenna box body and is fixed by the locating screw, the distance of the locating pull rod is limited by the limit lever at one end of the locating pull rod, the limit lever is connected and fixed with the test handle by the control panel, and the N-shaped radiofrequency connector and the wave band switch are embedded in the control panel. The invention is suitable for shielding efficiency test of a shielding chamber, a shielding square cabin and a cabinet and radiation interference leakage detection test of large-scale electronic equipment and systems.

The invention relates to an intelligent parking lot parking and car locating navigation system and method based on a smart phone. The intelligent parking lot parking and car locating navigation system based on the smart phone comprises an information collection system arranged at a charge entrance of a parking lot, intelligent car locating terminals arranged at a personnel entrance and a personnel exit of the parking lot respectively, the smart phone which is handheld by a user and downloaded with an intelligent parking lot parking and car locating APP, and a background management center, wherein the information collection system and the smart phone are directly connected with the background management center in a wired mode; the information collection system and the intelligent car locating terminals are interconnected with the smart phone in a wireless mode. Hardware contained by the system is low in cost, the system is convenient to use, the user can freely and flexibly select parking places and navigation modes and can still rapidly and accurately locate the parking place when parking a car and leaves under the condition that the smart phone of the user is lost or has no electricity, and the unicity defect that the user parks the car only through the parking place distributed by the parking lot and must depend on a handheld mobile terminal for navigation in the prior art is overcome.

An interconnect substrate is placed over a first inductor of a semiconductor chip and a second inductor of another semiconductor chip. The interconnect substrate includes a third inductor and a fourth inductor. The third inductor is located above the first inductor. The distance from the first inductor to the third inductor is longer than the distance from the second inductor to the fourth inductor.

An omnidirectional wireless pedometer includes a transmitter and a receiver. The transmitter includes a vibration sensor, a transmitter control circuit, an oscillating circuit and a transmitting antenna. The vibration sensor detects a vibration signal when a user walks or jogs and transmits the vibration signal to the transmitter control circuit. Then, the vibration signal is transmitted to the oscillating circuit which generates an oscillating signal and forwards the oscillating signal to the transmitting antenna for transmitting out wirelessly. The receiver comprises three receiving antennas respectively arranged in X, Y, and Z directions. The receiving antennas are capable to receive pace signal from different directions and generate a resonance signal. Subsequently, the resonance signal is transmitted to a receiver control circuit for processing, which generates a data signal to be displayed in a displayed unit.

A memory interface circuit, a memory storage device and a signal generation method are provided. The memory interface circuit is configured to connect a volatile memory module and a memory controller. The memory interface circuit includes a clock generation circuit, a first interface circuit and a second interface circuit. The clock generation circuit is configured to provide a reference clock signal. The first interface circuit is configured to provide an address signal to the volatile memory module based on a first transition point of the reference clock signal. The second interface circuit is configured to provide a command signal to the volatile memory module based on a second transition point of the reference clock signal. The first transition point is one of a rising edge and a falling edge of the reference clock signal. The second transition point is the other one of the rising edge and the falling edge of the reference clock signal.

The invention relates to a production process of an environment-friendly microwave ceramic copper-clad plate. The environment-friendly microwave ceramic copper-clad plate is mainly applied to the fields meeting high-end requirements, such as microwave and millimeter-wave satellite communications. The process comprises the following steps of: carrying out modification treatment on the surface of glass fiber cloth and immersing in synthetic slurry to form a prepreg; rolling or cutting and laminating, and anchoring a copper foil; then carrying out cold machine pre-pressing to evacuate air; and under the vacuum condition of 10-20 Kpa, keeping the pressure of a hot pressing machine at the temperature of 350-400 DEG C and at the pressure of 15-20 Mpa to be cured for 1-2 hours to prepare the product. The environment-friendly microwave ceramic copper-clad plate has microwave high-frequency low dielectric epsilonr, low loss tan delta, efficient signal transmission and high stability.

The invention discloses a digital-analog hybrid packaging structure, electronic equipment and a packaging process, the digital-analog hybrid packaging structure comprises a base body, a digital chip assembly, an analog signal processing chip and a sensor assembly, and the base body is provided with a first mounting groove and a second mounting groove which are arranged adjacently; the digital chipassembly is arranged in the first mounting groove and is electrically connected with the base body; the analog signal processing chip is arranged in the second mounting groove and is electrically connected with the base body; and the sensor assembly covers openings of the first mounting groove and the second mounting groove and is electrically connected with the base body. According to the invention, the digital chip, the analog signal processing chip and the analog sensor chip are integrated into a whole, the digital-analog hybrid packaging structure has the advantages of being good in processing chip system air tightness, electromagnetic shielding and the like, and the signal processing speed can be increased.

Disclosed is a flexible circuit cable with at least two bundled wire groups. The circuit cable has first and second ends respectively connected to first and second connection sections. The circuit cable includes a cluster section, which is formed of a plurality of cluster wires formed by slitting the circuit cable, in an extension direction of the cable, at a predetermined cut width. The cluster section includes at least two independent bundles, which are formed by dividing the cluster wires of the circuit cable into different signal groups according to electrical signals transmitted therethrough. Bundling members are used to the cluster wires of the independent bundles according to predetermined bundling modes. Further, the circuit cable has a surface forming a shielding conductive layer for electromagnetic interference protection and impedance control for internal signals of the circuit cable.

A signal coding apparatus and method, a signal recording medium and a signal transmitting method is disclosed in which a motion-picture image signal supplied at an input terminal is delivered to a motion vector detection / motion-prediction residual calculator, intra-image motion-prediction residual calculator, and to an frame / field DCT coding type judging means. In the frame / field DCT type judging means, the type of DCT coding is judged for the input MB (macro block). Based on the DCT coding type, the intra-image motion-prediction residual is calculated by the intra-image motion-prediction residual calculator. The intra-image motion-prediction residual thus obtained and input MB motion-prediction residual as compared with each other by the INTRA / INTER judging means to judge whether the input MB is to be intra- or inter-coded. The intra- or inter-coding is done in the decided coding mode.

An input system includes an information generation part which generates input information based on a given input operation, a transmission part which transmits signal generated by having a plurality of different carrier frequencies modulated with the input information, and a reception part which receives the transmitted signals and demodulates the signals into input information.

The invention belongs to the technical field of electronic test and measurement and particularly relates to a broadband high-gain magnetic field annular test antenna based on a resonance principle and a design method. The broadband high-gain magnetic field annular test antenna based on the resonance principle is characterized by at least comprising a test handle, a resonance control circuit, a control panel, an antenna radiator, an antenna box body, a locating pull rod, a locating screw, a limit lever, a wave band switch and an N-shaped radiofrequency connector, wherein the antenna radiator is arranged in the antenna box body, the locating pull rod bestrides the antenna box body and is fixed by the locating screw, the distance of the locating pull rod is limited by the limit lever at one end of the locating pull rod, the limit lever is connected and fixed with the test handle by the control panel, and the N-shaped radiofrequency connector and the wave band switch are embedded in the control panel. The invention is suitable for shielding efficiency test of a shielding chamber, a shielding square cabin and a cabinet and radiation interference leakage detection test of large-scale electronic equipment and systems.

A memory interface circuit, a memory storage device and a signal generation method are provided. The memory interface circuit is configured to connect a volatile memory module and a memory controller. The memory interface circuit includes a clock generation circuit, a first interface circuit and a second interface circuit. The clock generation circuit is configured to provide a reference clock signal. The first interface circuit is configured to provide an address signal to the volatile memory module based on a first transition point of the reference clock signal. The second interface circuit is configured to provide a command signal to the volatile memory module based on a second transition point of the reference clock signal. The first transition point is one of a rising edge and a falling edge of the reference clock signal. The second transition point is the other one of the rising edge and the falling edge of the reference clock signal.

The invention discloses an audio-video wireless transmission system and a transmission method, wherein, the system comprises a wireless audio-video central station and a wireless audio-video mobile terminal; when the central station and the mobile terminal carry out audio-video wireless transmission by adopting a WLAN transmission channel, the wireless audio-video central station detects the quality of a signal transmitted from the wireless audio-video mobile terminal in real time; when the signal quality is reduced to an early warning value, the two adopt a multicarrier transmission channel,a central station image is synchronously switched to the multicarrier transmission channel; and the WLAN transmission channel keeps monitoring, when the signal quality of the WLAN transmission channel is increased to a preset value, an interface of the WLAN transmission channel is restored, and the multicarrier transmission channel is cut off. The invention organically combines the WLAN and multicarrier proposal together, realizes the full utilization under different source conditions, and reliably realizes the real-time transmission of audio-video and data under the complex environment.