572results about How to "Avoid signal interference" patented technology

An method and apparatus for transmitting ranging information from at least one base station to subscriber stations and generating a ranging signal by the subscriber station using received ranging information in a Broadband Wireless Access (BWA) communication system including a plurality of neighbor cells and a plurality of the subscriber stations located in each cell region. A first code generator generates a first code using different first code information received from the base stations in the neighbor cells allocated the first code information. A second code generator generates a second code using second code information received by each of the subscriber stations existing in cell regions of the neighbor cells. A ranging signal generator generates a new ranging signal by combining the first code with the second code.

A system for automatic detection of defects in railroad wheels, a system that is stationary and is installed in extended intervals in the rails uses stationary acoustical/vibration sensors installed at intervals in the rails. Rail segments associated with the detectors are acoustically isolated. The sensors acquire the sounds and vibrations generated by the wheels rolling over the rails. Signal analyzers identify rail defects from intensity vs., frequency distributions of acoustical spectra. Such spectra reflect the condition of the wheels and change their intensity vs. frequency distributions when the wheels pass the sensors installed in the rails. The acquired information on the condition of the wheels is transmitted to a central location. Any defective wheel is identified and marked for repair or replacement.

The present invention relates to a transmission system with interference avoidance capability, which includes a transmission apparatus and a receiving apparatus. The transmission method thereof receives first data by means of an interference-processing module of the transmission apparatus and adds a plurality of extension data to the first data to produce second data for replacing a plurality of data corresponding to an interfered band in the second data with zero data, and then producing transmission data. The transmission data is converted to a radio-frequency signal by a transmission-processing module and transmitted to the receiving apparatus. Thereby, signal interference can be prevented by avoiding spectrum overlap regions.

A method for avoiding signal interference between a first RF device and a second RF device is provided. The first and second RF devices are co-located and the first RF device is configured to operate within a semi-stationary range of a frequency band. The second RF device is configured to operate by changing channels within the frequency band. The method initiates with a communication interface being provided between the first RF device and the second RF device. Then, the second RF device receives the semi-stationary range and a mode for the first RF device through the communication interface. Next, the second RF device is adapted to avoid the semi-stationary range of the frequency band of the first RF device when the mode of the first RF device is in an active mode. An apparatus where two RF devices are co-located without causing interference for each other is also provided.

The present invention relates to devices and methods for planning and supervising minimally invasive surgery. Included are enhancements to systems for planning, monitoring, and controlling cryosurgery.

The invention provides a touch-control array, a touch-control sensor, a touch-control display screen and a touch-control device. The touch-control array comprises a substrate, a capacitive coupling touch-control array and an electromagnetic induction array, wherein the capacitive coupling touch-control array and the electromagnetic induction array are arranged in a manner of being insulated from each other; the capacitive coupling touch-control array comprises a first direction capacitive conductor group and a second direction capacitive conductor group; the electromagnetic induction array comprises a first direction induction lead group and a second direction induction lead group; the first direction capacitive conductor group and the first direction induction lead group are arranged on a first surface of the substrate, and the second direction capacitive conductor group and the second direction induction lead group are arranged on a second surface of the substrate; or, the first direction capacitive conductor group and the second direction induction lead group are arranged on the first surface of the substrate, and the second direction capacitive conductor group and the first induction lead group are arranged on the second surface of the substrate. The touch-control array can simultaneously identify signals of a finger and an electromagnetic pen at any time.

A dual conversion receiver selects and down-converts one channel from a plurality of channels in a received RF signal. The dual conversion receiver includes first and second mixer stages that are driven by first and second local oscillator signals. Channel selection is performed by tuning the first local oscillator signal so that a desired channel is up-converted to a first IF frequency, which defines the center of the passband of a first bandpass filter connected between the first and second mixer stages. The second mixer stage down-converts the output of the first bandpass filter to a second IF frequency, which is further filtered by a second bandpass filter. The first and second local oscillators can produce harmonics that mix in the second mixer stage, causing unwanted spurious signals that can fall in band with the second IF frequency. In order to avoid interference from these unwanted spurious signals, the frequency step size of the first local oscillator is tuned so that the spurious signals fall out-of-band of the second IF frequency.

The present invention discloses a microfluidic system and a driving method thereof. A plurality of photosensitive detection units comprising phototransistors and first gating transistors are employed to perform liquid drop position and size detection. The driving method comprises: In a collection time quantum, loading cut-off signals to a first scanning signal line to allow each phototransistor to be a closure state, loading conduction signals to a second scanning line to allow the first gating transistors to be conducted, and determining a liquid drop position through detection of signal difference according to a feature that there is difference in a received light intensity received by the phototransistors according to determination of whether there is liquid drop coverage or not, so that detection is performed based on photosensitivity to avoid signal interference and facilitate improvement of detection precision; and in a driving time quantum, loading conduction signals to a third scanning signal line to allow driving transistors to transmit driving signals to driving electrodes to control motion locus of liquid drops. Driving units and the photosensitive detection units in the microfluidic system all employ transistors with no need for arrangement of other detection devices so as to improve manufacturing efficiency.

The present invention relates to a silicon substrate having through vias and a package having the same. The silicon substrate includes a substrate body, a plurality of through vias and at least one heat dissipating area. The substrate body has a surface, and the material of the substrate body is silicon. The through vias penetrate the substrate body, and each of the through vias has a conductive material therein. The heat dissipating area is disposed on the surface of the substrate body and covers at least two through vias. The heat dissipating area is made of metal, and the through vias inside the heat dissipating area have same electrical potential. Thus, the heat in the through vias is transmitted to the heat dissipating area, and since the area of the heat dissipating area is large, the silicon substrate has good heat dissipation efficiency.

Disclosed is an LED display unit screen. The LED display unit screen is of a modular structure, easy to install, low in cost and strong in interference resistance. The LED display unit screen comprises a plurality of LED display modules and DC power supply, and the LED display modules are clamped on a base frame by a rotary knob lock head; an electric appliance box provided with a base and internally installed with the DC power supply is disposed on the base frame and the LED display module is clamped between the base and a left beam or a right beam; an interface board is arranged in the electric appliance box, and the interface board is provided with a multilayer PCB board with functions of high frequency signal shielding and electromagnetic radiation reduction. A signal receiving module and the DC power supply are communicated with the interface board and the LED display module in a busbar and a gill bar mode. All electric signals and power supply current are transmitted through an internal layer of the interface board, and therefore the usage amount of the open wire cable is significantly reduced. The upper external layer and the lower external layer of the interface board are grounding copper foil, so that high frequency signals can be shielded by the interface board in the internal layer of the interface board and the electromagnetic pollution for the environment by the high frequency signals and the signal disturbance by the high frequency signals for the LED display module are avoided.

An shielded electrical connector (100), to which an electrical element (5) is electrically connected, includes an insulative housing (1) defining a number of passageways (101), a number of terminals (2) retained in the passageways, a side shield (3) and a bottom shell (4). The insulative housing also has a bottom board (17) defining a number of grooves (170) communicating with the passageways. Each terminal includes a soldering portion (26) and a body portion (21) partially exposed to the groove.

A vehicle body communication device (200) transmits a request signal to both a wheel side sensor (31) that is provided in a valve (24) of a wheel (22), and a tire side sensor (32) that is embedded in a tire tread (28). When the wheel side sensor (31) and the tire side sensor (32) receive the request signal from the vehicle body communication device (200), respective return signals are transmitted to the vehicle body communication device (200). The respective transmission patterns are set to be different.

An electrical connector combination comprises a socket connector and a plug connector cooperative with the socket connector. The socket connector comprises an insulation body, two rows of conductive terminals and a shield housing wrapping the insulation body, the insulation body comprises a substrate, tongue portions extended from the substrate and provided with the two rows of the conductive terminals and a rampart arranged at the peripheries of the tongue portions and configured to form annular slots between the tongue portions, the shielding housing is arranged at the annual wall, the plugconnector comprises an insulation body, two rows of butting terminals and a shielding housing wrapping an insulator, the insulator comprises a pedestal and a peripheral wall arranged at the peripheryof the pedestal, configured to form a butting groove by commonly encircling with the pedestal and provided with the two rows of the butting terminals, the shielding housing is arranged at the peripheral wall, the socket connector also comprises shield pieces exposed in insertion grooves arranged at the tongue portions and configured to separate from the two rows of the conductive terminals, and the plug connector also comprises a metal isolation piece fixedly held at the pedestal to separate from the two rows of the butting terminals and butt joint the shielding pieces. Therefore, the electrical connector and the combination thereof can effectively avoid signal interference between the two rows of conductive terminals in the socket connector and between the two rows of butting terminals inthe plug connector.

The invention discloses a display module and a display device, and belongs to the technical field of display, the display module comprises a display panel, and the display panel comprises a first substrate, a thin film transistor array layer, a second substrate and a coil film layer; wherein the coil film layer at least comprises a first metal layer, a first insulating layer, a second metal layerand a second insulating layer, the first metal layer comprises at least one first coil, the second metal layer comprises at least one signal line, and one first coil of the first metal layer is electrically connected with one or two signal lines of the second metal layer; the orthographic projection of the first coil to the first substrate is at least partially located within the display area range. The display device comprises the display module. The coil film layer is arranged in the display panel, and wireless transmission with multiple functions can be integrated on one panel, so that thecost is reduced, the integration level is improved, and equipment is further developed to be light, thin and integrated.

The invention discloses a shift register and driving method, grid driving circuit and display device thereof provided by an embodiment of the invention. The shift register comprises an input module, a reset module, the first control module, the second control module and an output module; through the coordination of the above modules, the scanning signals used for inputting in the corresponding grid lines can be output through the scanning signal output end by using a simple structure, the cascade signals are output from the output end of the cascaded signal, and the cascade signals are used as the signals of the signal input ends of other cascaded shift registers, so that the cascade signal output end for outputting cascade signals is different from the scanning signal output end for outputting scanning signals, so the signal interference of the scanning signals input in the grid lines to the input signal end of the next shift register can be avoided, so that the stability of the shift register can be improved, and then the overall stability of the circuit formed by cascading the plurality of the shift registers can be improved.