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1182 results about "Data transmission circuit" patented technology

In telecommunication, a data transmission circuit is the transmission media and the intervening equipment used for the data transfer between data terminal equipment (DTEs). A data transmission circuit includes any required signal conversion equipment.

Active safety type assistant driving method based on stereoscopic vision

InactiveCN102685516AAvoid tailgatingPreventing accidents such as frontal collisionsImage enhancementImage analysisActive safetyDriver/operator
The invention discloses an active safety type assistant driving method based on stereoscopic vision. An active safety type assistant driving system comprehensively utilizes an OME information technology, consists of a stereoscopic vision subsystem, an image immediate processing subsystem and a safety assistant driving subsystem and comprises two sets of high resolution CCD (charge-coupled device) cameras, an ambient light sensor, a two-channel video collecting card, a synchronous controller, a data transmission circuit, a power supply circuit, an image immediate processing algorithms library, a voice reminding module, a screen display module and an active safety type driving control module. According to the active safety type assistant driving method, separation lines and parameters such as relative distance, relative speed, the relative acceleration and the like of dangerous objects such as front vehicles, front bicycles, front pedestrians and the like can be accurately identified in real time in sunny days, cloudy days, at nigh and under the severe weather conditions such as rain with snow, dense fog and the like, so that the system can prompt a driver to adopt countermeasure through voice and can realize automatic deceleration and emergency brake at emergency situation, thereby ensuring safe travel in a whole day.
Owner:李慧盈 +2

Interchangeable CML/LVDS data transmission circuit

A system and method is described for a driver circuit used for high speed data transmission in LVDS and CML transceiver device applications. The transceivers are intended to receive a low voltage differential input signal and interchangeably drive a standard LVDS load with a TIA/EIA-644 compliant LVDS signal, and a standard CML load with a standard CML compatible signal. The driver circuit operates at speeds up to 1.36 Gbps, making it compatible with the OC-24 signaling rate for optical transmission. To accomplish this, the driver uses a mixed combination of voltage and current mode drive sections in the output circuit when coupled to LVDS loads, and when the driver is coupled to CML loads, operates purely in a current mode using only the current mode drive section. MOS transistors and a current source are used in the current mode switch portion to switch the drive with a constant current at the high speeds, and NPN transistors in the voltage mode output portion provide variable impedance for the output circuit. A common mode compensation circuit using a feedback voltage from the load generates a compensation signal for variable impedance control of the NPN transistors to yield a regulated voltage for the common mode dc voltage.
Owner:TEXAS INSTR INC

Data transmission system

The invention discloses a data transmitting system, which solves the problem of the prior data transmitting method that only direct transmission between nodes in an upper and a lower grades and cross-grade storage and forwarding instead of point-to-point transmission can be realized. The system comprises a mission server in charge of monitoring and obtaining requests of source nodes; a central control server in charge of managing and adjusting the working progress which is composed of a transmission controlling module and a transmission client side; the transmission controlling module in charge of communicating with target nodes through a synchronous transmission channel and performing adjustment and control to the mission; the transmission client side is in charge of data transmission, and transmits the data transmission to the target nodes through an asynchronous transmission channel; the synchronous transmission channel is realized by a synchronous channel server and a synchronous channel client side API, and the asynchronous transmission channel is realized by an asynchronous channel server and a transmission client side. The system can realize the direct point-to-point transmission, and is provided with a mission priority managing and flow rate controlling mechanism as well as assemblage and load balancing of application layers.
Owner:CHINA CONSTRUCTION BANK

Data transmission accelerating engine method based on multiple access passages of transmitting end

The invention relates to a data transmission accelerating engine method based on multiple access passages of a transmitting end, which comprises the following steps: after a transmitting end host machine downloads a data packet from an application layer, carrying out TCP multiplexing encapsulation; then delivering the data packet to a TCP/IP protocol stack of a host machine operation system to process; transmitting an encapsulated IP datagram formed by an IP layer to a link layer and then to a physical layer; arriving at a data receiving party by an intermediate routing and demultiplexing by the receiving party. The method is characterized by comprising the following steps: arranging a data transmission accelerating engine between the IP layer and the link layer; grouping the data to be transmitted of the IP datagram according to a mark bit in an IP masthead; then detecting the flow load condition of all transmission passages of the grouped datagram groups by a load balancing module; carrying out predistribution calculation by a corresponding flow distribution algorithm and distributing a data flow to be transmitted to all available transmission passages to transmit in parallel; and finally appointing the predistributed datagram groups to different network interface devices by a data dispatching module.
Owner:SOUTHEAST UNIV
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