699results about How to "Fast communication speed" patented technology

The invention is embodied in a gigabit Ethernet adapter. A system according to the invention provides a compact hardware solution to handling high network communication speeds. In addition, the invention adapts to multiple communication protocols via a modular construction and design.

An efficient communications apparatus is described for a vector signaling code to transport data and optionally a clocking signal between integrated circuit devices. Methods of designing such apparatus and their associated codes based on a new metric herein called the “ISI Ratio” are described which permit higher communications speed, lower system power consumption, and reduced implementation complexity.

The invention relates to a system and method for load-balancing multiple servers in a communications network. Instead of using round robin or other predetermined scheme, SIP messages are forwarded to one of multiple SIP servers according to a performance score that is calculated from measured performance data. Advantageously, the disclosed system and method decreases signaling latency, improving overall communications speed. Moreover, where performance data indicates that a SIP server has failed, the performance score for the failed SIP server is zero, and the load balancer will not forward SIP messages to the failed SIP server. System uptime is also improved.

The present invention provides an ID chip or an IC card in which the mechanical strength of an integrated circuit can be enhanced without suppressing a circuit scale. An ID chip or an IC card of the present invention has an integrated circuit in which a TFT (a thin film transistor) is formed from an insulated thin semiconductor film. Further, an ID chip or an IC card of the present invention has a light-emitting element and a light-receiving element each using a non-single-crystal thin film for a layer conducting photoelectric conversion. Such a light-emitting element or a light-receiving element may be formed consecutively to (integrally with) an integrated circuit or may be formed separately and attached to an integrated circuit.

It is provided a mobile communication system comprising base stations, call control servers and access gateways. The call control servers cause a mobile terminal accommodated in one of the control server to transmit the location registration request so that the mobile terminal accommodates in another control server according to a processing amount of control signals. The base station selects a second call control server into which the one of the mobile terminals is to be newly accommodated. The one of the call control server switches to a power-saving state after the mobile terminal is accommodated into the another call control server.

A noncontact communication apparatus is disclosed which includes: an antenna resonance circuit configured to have a coil for communicating with an opposite party through electromagnetic coupling; a changing block configured to change a Q-factor of the antenna resonance circuit; and a control block configured to control the antenna resonance circuit to transmit and receive data to and from the opposite party at one of a plurality of communication speeds prepared beforehand, the control block further controlling the changing block to reduce the Q-factor the higher the communication speed in use.

A cellular mobile communication system has a problem that communication quality is lowered by increase of an attenuation amount of a desired signal and increase of an interfering signal amount at a position apart from a base station and high-speed data communication becomes difficult. To solve this problem, when a mobile station M is at a location D where the radio attenuation is small, the mobile station M uses an OFDM signal to transmit data x, y and z via a traffic channel all at once so that data communication is performed at the maximum communication speed. On the other hand, when the mobile station M moves from the location D to a location E which is far from any of the base stations A, B and C, the mobile station M divides, the data x, y and z into three and, by using a diffusion OFDM signal having a high interference resistance, increases the interference resistance, and transmits data, x, y and z almost simultaneously from the three base stations A, B and C, thereby realizing equivalence of high-speed data transmission.

The invention relates to a modularized multi-level converter sub-module control and protection method. The control and protection method comprises the following processing modes: in four control models of a sub-module, executing different control and protection logics by using a sub-module controller; generating a sub-module internal interface output signal, detecting an input signal and diagnosing a plurality of faults; executing control and protection actions by using the sub-module controller according to an action priority level; detecting the voltage of an energy storage capacitor C by using the sub-module controller; and performing asynchronous serial communication between the sub-module controller and a valve-based controller. In the method, a complete and intelligent control and protection scheme is designed aiming at the structure of the modularized multi-level converter sub-module, the coordinated control and protection of the overall sub-module can be realized, so that the stable and reliable operation of the sub-module in a converter and the coordinated matching with an overall control and protection system of the converter are ensured.

When first and second housings are in an open state, first and second switches are electrically opened, and thus, a first antenna element and a ground conductor operate as a first dipole antenna, and a second antenna element and the ground conductor operate as a second dipole antenna with isolation from the first dipole antenna by the slit. When the first and second housings are in the closed state, the first and second switches are electrically closed, and thus, the first antenna element operates as a first inverted F antenna on the ground conductor, and the second antenna element operates as a second inverted F antenna on the ground conductor with isolation from the first inverted F antenna by the slit.

The invention provides a framework system applied to the field of intelligent wear and based on an MEAN framework so as to solve the problem of interconnection of intelligent wear equipment, a mobile phone APP and a cloud server. Meanwhile, the invention provides an application framework applied to the field of child bracelet equipment and based on a tracking planned and triggered bracelet capable of preventing children from being lost so as to solve the problems that consumption of equipment batteries is increased and the tracking requirements of different scenes can not be met due to the fact that a child bracelet reports aimlessly in real time.

A plurality of frequency-channels are provided, each composed of an OFDM multi-carrier. The OFDM sub-carrier of each channel is orthogonal to the sub-carrier of any other channel, so that two or more channels may be considered to transmit the same OFDM signal. Further, a sub-area that uses two or more channels is provided in each service area in which a base station is located at the center and assigned with a basic-frequency channel.

The invention provides a downloading method, which relates to the related technical fields of Internet, peer-to-peer transmission, content division and the like. When a user is to download a data file or multimedia program contents from the Internet, a content provider or a content sharer defines different attributes for different segments in the same file according to the different attributes of specific program contents, classifies the segments, and provides and shares classification information for the other users. When the user downloads the contents from the Internet, the downloading user preferably selects a list of the segments meeting attribute requirements thereof according to the known classification information, preferably downloads and uses the segments, expands the downloading of the classification information of the segments according to needs thereof, and provides right control and management strategies corresponding to profiles of the segments.

The invention discloses a full digitalized distributed intelligent servo driver which adopts a full digitalized DSP (Digital Signal Processor) + FPGA (Field Programmable Gate Array) structure. The intelligent servo driver provided by the invention integrates the functions of motion control, motor control and a simple PLC (Programmable Logic Controller) and can conveniently construct a motion control system without an upper computer motion controller (card). The intelligent servo driver can be used for controlling and driving a direct current brush (brushless) motor, an alternating current servo motor and a linear motor only through software configuration without changing hardware. The intelligent servo driver can realize the following operation modes: A. an RS232 network control mode; B. an RS485 distributed network control mode; C. an independent driver running mode without the upper computer; D. a pulse command running mode; and E. an analog signal running mode. The servo driver provided in the invention adopts a modularized structure, the same control module can be matched with driving modules of different power levels to form intelligent servo driving systems of different power levels. By utilizing the full digitalized distributed intelligent servo driver, a motion control system with the advantages of low cost, flexible system configuration, simpleness and convenience for operation, reliable performance and convenience of maintenance can be realized.

A downlink signal and WDM-PON signal from an OLT 1 are separated by an optical filter part 11, and a downlink signal is split by a power splitter part 12. A WDM-PON signal is also split in each wavelength by a demultiplexer part 13, and a downlink signal and a WDM-PON signal of either one of the wavelengths are outputted to each ONU, in an optical filter part 14. Moreover, an uplink signal from the ONU is introduced to the power splitter part 12 via the optical filter part 14, and outputted to the OLT 1 via the optical filter part 11. Therefore, it is possible to realize a hybrid splitter module which allows upgrading a downlink signal to a WDM-PON without adding changes to a device on a subscriber side.

The invention discloses a battery management system of an electric vehicle, which comprises a primary vehicle-body system, a main controller and a battery pack, wherein, the battery pack is formed by more than two batter modules connected in series, the batter modules are formed by connecting more than two single cells in series, each battery module is provided with a battery collecting module, the battery pack is respectively connected with a complete vehicle power system through a discharging relay and a charging relay, the main controller is connected with a previous complete vehicle system through a first optical isolator, and the battery collecting module is connected with the main controller through a second optical isolator. The battery management system has the advantages that: as the battery management system is composed of the main controller (BMU) and the next battery collecting module (LECU), the composition of the system structure is simplified through the main controller and the next battery collecting module, the cost of the hardware of the system can be reduced, and simultaneously, the reliability of the management system can be greatly enhanced.

The invention relates to a reliable data interaction method based on an RS-422 serial bus technique, and with the combination of continuous auto repeat request (Auto Repeat request ARQ) protocol, discloses a novel data interaction and verification method based on the RS-422 serial bus technique. A host computer and a lower computer have a response mechanism and repeat frame verification, and moreover the host computer can continuously transmit a plurality of data frames before receiving a response frame transmitted from the lower computer, copies of the data frames can be stored in transmitting buffer when the data frames are transmitted, and corresponding data frame copies in the buffer can be deleted after the host computer receives the response frame. Until a certain number of data frames which do not receive the response frames are accumulated, the host computer stops to retransmit the data frame copies in the buffer. The utilization rate and the communication speed of a channel can be greatly increased. Aiming at the characteristics of an embedded system, information type recognition codes are added into the data frames for communication of the host computer and the lower computer, so that communication of multiple time sequences, parameters and task instructions of the embedded system can be achieved simultaneously.

Provides a terminal for performing multiple access transmission suitable to a transmission path having varied characteristics. The terminal (100) includes a transmission / reception section (201), a control unit (204), a transfer management section (206), and an external interface section (203). The terminal (100) refers to an IGMP (MLD) message received by the transmission / reception section (201) to classify a transmitter host and a relay device of this message based on the characteristic of the transmission path, and performs a multiple access transmission of a multicast packet in a form suitable to the characteristic of the respective transmission path.

The invention relates to the technical field of communication, in particular to a method and a device for testing a terminal based on the Android, solving the problem that currently, testing software is required to be designed according to different chips during development. The method provided by the embodiment of the invention comprises the following steps: establishing Socket connection between a testing terminal and a terminal to be tested via an ADB interface; and via the established Socket connection, achieving signal interaction and data transmission between the testing terminal and the terminal to be tested by adopting a communication protocol supported by the ADB interface. According to the invention, since the Socket connection between the testing terminal and the terminal to be tested is established via the ADB interface, when terminals to be tested, which are based on different hardware platforms, are tested, communication can be achieved as long as a communication protocol supported by the ADB interface is adopted, therefore, different testing software is not required to be developed to aim at different hardware platforms, and further development repeatability of the testing ware is reduced.

A relay is described to facilitate communication through the telephone system between hearing users and users who need or desire assistance in understanding voice communications. To overcome the speed limitations inherent in typing, the call assistant at the relay does not type most words but, instead, re-voices the words spoken by the hearing user into a computer operating a voice recognition software package trained to the voice of that call assistant. The text stream created by the computer and the voice of the hearing user are both sent to the assisted user so that the assisted user can be supplied with a visual text stream to supplement the voice communications. A time delay in the transmission of the voice of the hearing user through the relay is of assistance to the assisted user in comprehending the communications session.

Reduction of the size of and enhancement of the reliability, mounting strength, and mounting reliability of a semiconductor module are achieved. The semiconductor module includes: a wiring substrate; an electronic component placed over the upper surface of the wiring substrate; an electronic component placed over the under surface of the wiring substrate; a lead placed over the under surface of the wiring substrate; and encapsulation resin covering the under surface of the wiring substrate including the electronic component and the lead. The lead includes: a first portion coupled to an electrode pad via a joining material; a second portion bent from the first portion; and a third portion bent from the second portion. The third portion is positioned closer to the peripheral edge portion side of the under surface of the wiring substrate than the first portion. At the same time, the third portion is arranged at a position farther from the under surface of the wiring substrate than the first portion. The third portion of the lead is exposed from the main surface and side surface of the encapsulation resin and functions as a terminal for external coupling.

A multilayer substrate includes a first dielectric layer and a conductor pattern disposed in at least an interior of the first dielectric layer. A second dielectric layer formed of a different material from a material of the first dielectric layer is disposed on the multilayer substrate. At least one radiation element is formed on the second dielectric layer. A feeding wire connects the radiation element and the conductor pattern. The feeding wire includes a conductor pin that is conductive and extends in a thickness direction of the second dielectric layer. The conductor pin electrically connects the radiation element and the conductor pattern. Provided is an antenna-integrated type communication module having such a structure that the accuracy of circuit simulation is easily enhanced and the degree of freedom in selection of dielectric materials is large.

The embodiment of the invention provides a data transmission method, a medium, electronic equipment and a storage medium. The method is applied to a client. And the client is in communication connection with the target proxy server through a websocket protocol. The method comprises the following steps: when a client prepares to send request data to a service server, firstly, request data is packaged into a data packet in a websocket protocol format through an installed applet supporting a websocket protocol; request data in a websocket protocol format are received from a target proxy server and sent to the target proxy server, then a data packet in the websocket protocol format containing the response data is received from the target proxy server, the data packet is decapsulated to obtainthe response data, and the response data correspond to the request data. Due to the fact that the websocket protocol is adopted for communication between the client side and the target proxy server, alarge amount of time used for DNS analysis and three times of handshake is saved, the communication speed between the client side and the service server is increased, and the risk that domain name hijacking is likely to happen in the DNS analysis process is avoided.

A closed loop self-adapting emergency control method of power pool' centralized harmonization and hierarchy control' is disclosed, which adopts the quadrilayer structure of a dispatching center station, a control main station, a control sub-station and a control execution station from top to bottom, including the following control steps: 1. safely and stably controlling the system uploading operation data to the dispatching center station; 2. controlling the decision-making computation by the dispatching center station to obtain the online strategy table; 3. sending down the online strategy to the control main station by the dispatching center station and furthermore sending down to the related control sub-station by the control main station; 4.judging the failure and the overload according to the related failure and the overloading criterion by the control sub-station and the execution station; 5. transmitting the failure information to the upper control station layer by layer by the control sub-station and the execution station; 6. performing the failure combination match by the control main station; 7. sending the cutting machine and the cutting load command tot he corresponding control sub-station by the control main station; 8. reprocessing and transmitting to the execution station by the control sub-station; 9. cutting machine and cutting load exit by the execution station.

The invention provides a bridge arm collecting protection system suitable for a high-capacity MMC (Multi Media Controller) flexible direct-current power transmission system. The bridge arm collecting protection system comprises an MMC converter valve, a VBC (Vehicle Bridge Coupling) and a station control system which sequentially carry out data interaction. According to the bridge arm collecting protection system suitable for the high-capacity MMC flexible direct-current power transmission system, which is provided by the invention, the monitoring function for an integral complete signal interface and the state of a bridge arm sub-module is realized and the reliability and the stability of the operation of the sub module are ensured.

The invention discloses a certificate authentication device which comprises a normal storage module, a storage control module and an interface module, wherein the normal storage module is connected with the storage control module, and the storage control module and the interface module are connected. The certificate authentication device further comprises a safety storage module, an operation processing module and a safety control module, wherein the safety storage module is respectively connected with the operation processing module and the safety control module and used for storing private information for certificate authentication; the operation processing module is used for performing hardware acceleration on an encryption algorithm; and the safety control module is connected with the storage control module and used for scheduling the operation processing module to perform operation and controlling the safety storage module to perform data storage and output. The certificate authentication device disclosed by the invention can have a higher certificate authentication speed under the condition of ensuring the safety. The invention further discloses an access method and a certificate update method based on the certificate authentication device so as to realize the access of the certificate authentication device and the update of the certificate.

A clock recovery circuit includes a phase discriminating circuit for discriminating, at every edge of a received data signal, phase lead or phase lag of an identically directed edge of the clock signal, and outputting the phase discrimination signal; an edge detecting circuit for detecting edges of the received data signal, outputting an edge detection signal of a fixed pulse width, delaying the received data signal and outputting the delayed signal; an exclusive-OR gate for outputting, as an edge injection signal, an exclusive-OR signal between the phase discrimination signal and delayed signal; and a voltage-controlled oscillator for variably controlling frequency of ring oscillation, injecting the edge injection signal into the loop of ring oscillation, and outputting a clock signal locked to the received data signal.