227results about How to "Improve signal transmission efficiency" patented technology

The invention discloses a full-carbon coaxial line and a manufacturing method of the full-carbon coaxial line, and belongs to the technical field of integrated circuits. Graphene serves as a monatomic layer thickness, is coiled into a cylinder and form an inner conductor of the coaxial line with a small radius (can be as small as the nm level), and the inner conductor of the coaxial line transfers currents. Meanwhile, a signal layer or multiple layers of graphene serve(s) as an outer conductor of the coaxial line to form a boundary of electromagnetic waves in a space, and graphite oxide serves as medium materials between the inner conductor and the outer conductor to limit and guide oriented transmission of electromagnetic wave energy. The coaxial line is quite small in size and applicable to radio-frequency and microwave integrated circuits.

A wireless IC device includes a wireless IC chip for processing a transmission / reception signal, a printed wiring circuit board on which the wireless IC chip is mounted, a ground electrode disposed on the circuit board, and a substantially loop-shaped electrode that is electrically conducted to the wireless IC chip and disposed on the circuit board so as to be coupled to the ground electrode by an electromagnetic field. The ground electrode is coupled to the wireless IC chip via the substantially loop-shaped electrode to transmit / receive a radio frequency signal. A feeder circuit board including a resonant circuit and / or a matching circuit may be interposed between the wireless IC chip and the substantially loop-shaped electrode.

A wireless IC device and an electronic apparatus are obtained, which can achieve miniaturization and improve the gain of a radiator plate (electrode) without providing a dedicated antenna. A wireless IC device is provided, in which a loop electrode is provided in a ground electrode provided on a printed wiring circuit board, and in which a wireless IC chip that processes a transmission / reception signal or an electromagnetic coupling module is coupled to the loop electrode. The ground electrode is coupled to the wireless IC chip or the electromagnetic coupling module via the loop electrode, and transmits or receives a high-frequency signal. The ground electrode is formed with a slit for adjusting a resonant frequency thereof.

An embodiment of the invention discloses a method for dynamically switching channels. The method includes detecting signal intensity interfering data transmission of an access point on a current operating channel; judging whether the signal intensity detected is larger than switching threshold or not; detecting signal intensity interfering data transmission of the access point in an effective channel when the signal intensity detected is larger than the switching threshold; switching to one effective channel from the current operating channel, wherein signal intensity interfering data transmission of the access point in one effective channel is detected to be smaller than the switching threshold at least. By detecting the signal intensity interfering data transmission of the AP (access point) on the current operating channel, the signal intensity interfering data transmission of the AP in one effective channel is detected when the signal intensity detected is larger than the switching threshold, and a low-interfered channel in the effective channels is selected to be a new operating channel, so that the AP has higher signal transmission efficiency and provides higher-quality wireless networking experience for users.

The invention relates to a signal transmitting device for realizing wireless measurement while drilling. A downhole signal transmitting device for an electromagnetic measurement while drilling system comprises an upper drilling string and a lower drilling string, and an insulating joint is contained between the upper drilling string and the lower drilling string; and the upper drilling string and the lower drilling string are used for forming an asymmetric dipole antenna. The transmitting device adopts software radio technology to realize various functions of wireless transmission; the impedance matching between a transmitter antenna and transmission medium is realized through an impedance converter; and the dipole antenna is adopted to transmit a measurement while drilling data signal. The device and the method improve the adaptive capacity and measurement depth of the electromagnetic measurement while drilling system to different strata.

The invention relates to the field of broadband satellite communication and navigation, in particular to an LTE system-based satellite mobile communication uplink transmitting terminal timing adjustment method. According to the LTE system-based satellite mobile communication uplink transmitting terminal timing adjustment method, the satellite LTE uplink timing synchronization problem is solved, and the process that in LTE, receiving terminal timing synchronization is conducted by means of TA (timing advance) is omitted; and meanwhile, the leader sequence design and detection problems caused by large user transmission time delay differences in satellite beams are solved, the one-time success rate of user access is increased, the influences of Doppler frequency shift on uplink timing synchronization are reduced, and the signal transmission efficiency is improved.

Disclosed herein is a contact array of a universal serial bus (USB) connector including a first signal differential pair, a second signal differential pair and a third signal differential pair, wherein the second signal differential pair is disposed between the first and third signal differential pairs, and at least one power contact or ground contact is disposed between the first and second signal differential pairs, or between the second and third signal differential pairs.

A monitor for controlling power-on and power-off of a host computer includes a switch device, a monitoring device and a transmission device. The host computer has a processing device. The switch device is used for changing a status thereof in response to an external force applied thereto. The monitoring device is electrically connected to the switch device for monitoring the change of the status of the switch device, and determines if a power management event is activated by the change of the status of the switch status. The transmission device is electrically connected to the monitoring device, and transmits a power management signal to the host computer according to the determination that the change of the status of the switching device activates a power management event, such that the processing device performs a startup power-on or a power-off operation on the host computer.

A wired circuit board is provided for controlling characteristic impedance at connection points between the read wire and write wire of a suspension board with circuit and terminal portions of the wired circuit board connected thereto. The invention provides improved signal transmission efficiency for fine pitch wiring or for high frequency signal. A conductive board is adhesively bonded to an insulating base layer of the wired circuit board at one side thereof opposite to the other side on which a suspension-board-side connection terminal portion is formed having a first terminal portion that connects with a read wire of the suspension board and a second terminal portion that connects with a write wire of the suspension board. An opening is provided adjacent to one of the first terminal portion and the second terminal portion and a stiffener board is adhesively bonded to the conductive board via an adhesive layer.

A wireless IC device includes a wireless IC chip for processing a transmission / reception signal, a printed wiring circuit board on which the wireless IC chip is mounted, a ground electrode disposed on the circuit board, and a substantially loop-shaped electrode that is electrically conducted to the wireless IC chip and disposed on the circuit board so as to be coupled to the ground electrode by an electromagnetic field. The ground electrode is coupled to the wireless IC chip via the substantially loop-shaped electrode to transmit / receive a radio frequency signal. A feeder circuit board including a resonant circuit and / or a matching circuit may be interposed between the wireless IC chip and the substantially loop-shaped electrode.

A multi-frequency antenna for receiving a first frequency and second frequency signals comprises a grounding element, a first conductive member, a first radiation member, and a second radiation member. The first conductive member connects to the grounding element. The first radiation member and the second radiation member connect to the first conductive member separately. The multi-frequency antenna further comprises a parasitic structure. The parasitic structure structurally encircles the second radiation member and the encirclement is a partial encirclement. Moreover, the parasitic structure connects to the grounding element.

A miniaturized planar antenna of digital television comprises an insulation plate a metal radiator combined with a first surface thereof, a metal grounding element connected to a second surface thereof and a metal parasitic element. The metal radiator has a meander line portion and the metal parasitic element also has a meander line portion and is corresponding to a position of the metal radiator; the transmission efficiency of digital television signals can be elevated by broadening an electromagnetic signal receiving bandwidth of the antenna by means of the metal parasitic element.

The invention discloses a screen splicing method and electronic equipment. The screen splicing method comprises the following steps: obtaining a current distance between first electronic equipment and second electronic equipment; if the current distance is less than a preset distance, establishing a short distance wireless communication link between the first electronic equipment and the second electronic equipment; and splicing the first electronic equipment and the second electronic equipment through the short distance wireless communication link so as to display a first content together. The screen splicing method and the electronic equipment provided by the invention are used for solving the technical problem that the wiring is relatively complicated when the electronic equipment is used for realizing screen splicing.

A semiconductor device with a transistor region has a first conductor pattern formed within a multilayer interconnect structure positioned under a signal line and above the transistor region. The first conductor pattern is coupled to ground or a power supply and overlaps the transistor region. The signal line overlaps the first conductor pattern.

The present invention relates to magnetic field interface clothes performing contactless magnetic field communication with a mobile terminal, the magnetic field interface clothes includes: a receiving part in which a mobile terminal is received and a coil part performing contactless magnetic field communication with a coil part of the mobile terminal at a position facing a coil part of the mobile terminal is formed, wherein the coil part formed in the receiving part includes a first coil and a second coil, the first coil and the second coil are received in the receiving part to have different winding directions.

The invention relates to an underwater laser time service system and method based on Beidou. The underwater laser time service system based on Beidou comprises an unmanned aerial vehicle mobile base station which is used for receiving navigation signals and time service information t transmitted by Beidou satellites, carrying out navigation according to the navigation information, moving to a position above an underwater time service receiving device, obtaining precise time according to time service time t, generates a laser signal comprising the precise time and transmitting the laser signal to the underwater time service receiving device; and the underwater time service receiving device which is used for receiving the laser signal, carrying out analysis to obtain standard time of the unmanned aerial vehicle mobile base station, detecting depth information h<2> of the position at which the underwater time service receiving device is located, carrying out data processing on height information h<1>, laser transmitting angle information theta, the depth information h<2> and a water refractive index n through combination of the refractive index n of the water area, thereby generating transmission delay tau, and obtaining the time service time T through combination of the time service information t and the transmission delay tau. Compared with the prior art, the system and the method have the advantages that the transmission delay resulting from signal transmission can be reduced, the anti-interference capability is improved, and the underwater time service precision is improved.

A two-shaft hinge antenna comprises a major conductor, a first rotating element and a second rotating element. The stretching arms on both sides of the major conductor are assembled to the first rotating element and the second rotating element, respectively. The first rotating element further comprises a torque device and a first vice conductor, and the second rotating element further comprises a signal feeding line, a connection device, and a second vice conductor. The signal feeding line is electrically connected to the connection device and the second vice conductor, by which a high frequency signal can be passed to the major conductor, and then passed to the torque device on the other side and the first vice conductor. The aforementioned configuration is utilized to form an antenna loop. In addition, the configuration of this antenna can be applied to a foldable electronic device.

In the data input apparatus, a data delay unit outputs data input from outside the data input apparatice. The data delay unit varies the degree of delay in response to a test mode signal. A data alignment signal generating unit receives a first signal synchronized with an external clock signal and a second signal synchronized with a data strobe signal, and the data alignment signal generating unit outputs one of the first signal and the second signal as a data alignment signal in response to the test mode signal. A data alignment unit is synchronized with the data alignment signal to align the data delayed in the data delay unit. The data input apparatus improves the setup / hold window when a semiconductor memory device is in the test mode.

A semiconductor device with a transistor region has a first conductor pattern formed within a multilayer interconnect structure positioned under a signal line and above the transistor region. The first conductor pattern is coupled to ground or a power supply and overlaps the transistor region. The signal line overlaps the first conductor pattern.

The invention provides an Internet of Things tower deformation monitoring device integrating Beidou and an inertial sensor. The device comprises Beidou satellite monitoring point equipment, an Internet of Things sensing monitoring device, a spatial data preprocessing platform, an NB-IoT communication module, a solar cell, a power management module, an input and output panel and a background data monitoring platform. The Beidou satellite monitoring point equipment and the Internet of Things sensing monitoring device are fixed on a monitored pole body, are connected with the spatial data preprocessing platform through the NB-IoT communication module, and are used for automatically measuring tower health states such as tower footing settlement, tower inclination angle and structural wind loadanalysis. The device is good in performance, small in size and low in power consumption, solar energy can be used for supplying power, and unattended long-term automatic monitoring is achieved to themaximum extent in combination with the low-power-consumption monitoring device and the Internet of Things equipment.

A miniaturized planar antenna of digital television comprises an insulation plate a metal radiator combined with a first surface thereof, a metal grounding element connected to a second surface thereof and a metal parasitic element. The metal radiator has a meander line portion and the metal parasitic element also has a meander line portion and is corresponding to a position of the metal radiator; the transmission efficiency of digital television signals can be elevated by broadening an electromagnetic signal receiving bandwidth of the antenna by means of the metal parasitic element.

A display unit containing a display is openably attached to a base unit of a laptop computer. While the laptop computer is not in use, the display unit is closed over the top face of the base unit with a display face of the display being inward. To use the laptop computer, the display unit is opened to form a desirable angle with the operation face of an input part on the base unit. A PC card slot is formed in the display unit, and a card can be mounted at a position away from a keyboard. Therefore, the card inserted into the PC card slot does not obstruct the operation of the input part. Particularly, if the PC card slot is arranged above at the top of the display, the signal transmission in the wireless communication using a wireless communication card can be performed efficiently and an operator of the personal computer can easily take a picture by a PC card camera.

The invention discloses a method and equipment for determining arrival angles of antenna arrays. The method comprises the following steps: receiving at least one training sequence transmitted by base station equipment through a receiving antenna array by mobile terminal equipment, wherein one training sequence is transmitted in each time slot, and the training sequences are transmitted after being subjected to beam forming processing by the base station equipment; combining the received at least one training sequence; estimating channel impulse responses of a transmitting antenna array of the base station equipment and the receiving antenna array of the mobile terminal equipment according to the combined training sequences; and estimating arrival angle information of the receiving antenna array of the mobile terminal equipment with the channel impulse responses. Respective arrival angles are estimated through the training sequences transmitted between the base station equipment and the mobile terminal equipment, so that the time delay overhead of angle value estimation is reduced; the method and the equipment can be suitable for a millimeter-wave system under a large scale of antenna arrays; signal transmission with a millimeter-wave band is realized; and the signal transmission efficiency is increased effectively.

A package structure having an MEMS element includes: a packaging substrate having first and second wiring layers on two surfaces thereof and a chip embedded therein; a first dielectric layer disposed on the packaging substrate and the chip; a third wiring layer disposed on the first dielectric layer; a second dielectric layer disposed on the first dielectric layer and the third wiring layer and having a recessed portion; a lid disposed in the recessed portion and on the top surface of the second dielectric layer around the periphery of the recessed portion, wherein the portion of the lid on the top surface of the second dielectric layer is formed into a lid frame on which an adhering material is disposed to allow a substrate having an MEMS element to be attached to the packaging substrate with the MEMS element corresponding in position to the recessed portion, thereby providing a package structure of reduced size and costs with better electrical properties.

The invention relates to an integrated signal and platform gate control system. The integrated signal and platform gate control system comprises a trackside controller CI, a vehicle controller CC and a motor and further comprises an intelligent platform gate control unit PSDC and a safety DCU, wherein the intelligent platform gate control unit PSDC is connected with the trackside controller CI, the vehicle controller CC and the safety DCU, and the safety DCU is connected with the motor. Compared with the prior art, the system has advantages of high safety, strong timelines and good economic property.

An optical transmission module includes a semiconductor substrate, a first film layer, an electronic component layer and a waveguide structure. The electronic component layer is used for converting a first electrical signal into an optical signal. The waveguide structure is formed on the first film layer, and includes a first reflective surface, a waveguide body and a second reflective surface. After the optical signal is transmitted through the semiconductor substrate and the first film layer and enters the waveguide structure, the optical signal is reflected by the first reflective surface, transmitted within the waveguide body and reflected by the second reflective surface. After the optical signal reflected by the second reflective surface is transmitted through the first film layer and the semiconductor substrate and received by the electronic component layer, the optical signal is converted into a second electrical signal by the electronic component layer.

A signal transmission processing method and apparatus and a distributed base station are provided according to the embodiments of the present invention. The distributed base station includes a Base Band Unit (BBU) and a Remote Radio Unit (RRU). A transmitting end connected to one of the BBU and the RRU receives at least one of interface signals from the one connected thereto, performs optical transport network (OTN) electrical layer multiplexing to obtain OTN signal frames and transmit optical signals including the OTN frames to a receiving end connected to the other of the BBU and the RRU. The receiving end performs frame processing for the OTN frames received from the transmitting end to obtain the interface signals, and transmit the interface signals to the other connected thereto.

The invention provides an adhesive. The adhesive comprises the following components in parts by weight: 100 parts of matrix resin, 4.3-70 parts of a curing agent, 0-6 parts of an accelerant, 5-350 parts of a high-dielectric-constant filler, 0.01-5 parts of a dispersant, 0.1-5 parts of a coupling agent and 8-25 parts of a toner. The adhesive further has the characteristics of relatively high dielectric constant being greater than 6, high light shading property, adjustable colors and strong adhesive strength, and can be applied to adhesion of encapsulation of a capacitive fingerprint identification chip module; capacitive signals can be transmitted and cannot be shielded or reflected after the capacitive fingerprint identification chip module is encapsulated. An electronic encapsulation adhesive further has the advantage of being liable to assemble; the assembly manner is a glue-dispensing manner, a blade coating manner, a roller coating manner or a silk-screen printing manner; then the adhesion is carried out through a thermal curing manner; the adhesive is especially suitable for mass production. The invention further provides a preparation method of the adhesive; by virtue of the method, the encapsulation process is simplified.