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Digital signal and USB signal hybrid transmission apparatus and method

A digital signal and signal mixing technology, applied in the field of information science, can solve problems such as increasing system complexity and reducing USB data transmission efficiency, and achieves the effect of occupying less transmission line channels, simple circuit, and increasing transmission distance.

Active Publication Date: 2016-12-21
NANJING QINHENG MICROELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another existing solution is not to increase the transmission channel, but to time-multiplex the channel, which will increase the complexity of the system and reduce the transmission efficiency of USB data

Method used

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  • Digital signal and USB signal hybrid transmission apparatus and method
  • Digital signal and USB signal hybrid transmission apparatus and method
  • Digital signal and USB signal hybrid transmission apparatus and method

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, a digital signal and USB signal hybrid transmission device includes an UP end and a DOWN end, and the UP end and the DOWN end are connected through a transmission line, the UP end is connected to a terminal A, and the DOWN end is connected to a Terminal B, terminal A or terminal B can be single-chip microcomputer, button, indicator light and so on. The UP end, the transmission line and the DOWN end are bidirectionally connected between the host and the USB device. The UP end and DOWN automatically detect whether the USB bus is connected to a USB device or a host, and realize the interconnection between the host and the USB device through the transmission line. In the present invention, the forwarding data packet transmitted between the host and the USB device carries terminal A and terminal A. The signal se...

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Abstract

The invention discloses a digital signal and USB signal hybrid transmission apparatus and method. The apparatus comprises a UP end and a DOWN end; the UP end is connected with the DOWN end through a transmission line; the UP end and the DOWN end are connected with a terminal device; the UP end, the transmission line and the DOWN end are bidirectionally connected between a host and a USB device; a first data transceiver unit, a USB unpacking unit and a forwarding data processing unit perform one-way signal transmission in sequence; the forwarding data processing unit, a USB packing unit and the first data transceiver unit perform one-way signal transmission in sequence; the forwarding data processing unit and a second data transceiver unit perform two-way signal transmission; the second data transceiver unit is connected with the transmission line; the first data transceiver unit is in two-way connection with the host or the USB device; and the forwarding data processing unit is connected with the terminal device. According to the apparatus and the method, a digital signal and USB signal hybrid transmission function is realized without adding channels and influencing communication speed of a USB system.

Description

technical field [0001] The invention relates to the technical field of information science, in particular to a device and method for mixed transmission of digital signals and USB signals. Background technique [0002] The superiority of USB technology is becoming more and more obvious, and there are more and more devices supporting USB technology. In some USB systems, the host or device sometimes needs to transmit data other than USB data such as status and control to the other end, increasing Transmission channels can solve this problem, but this will increase the cost, especially for long-distance transmission, the cost is even greater. Another existing solution is to time-division multiplex the channels without increasing the transmission channels, which will increase the complexity of the system and reduce the transmission efficiency of USB data. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40G06F13/42
CPCG06F13/4013G06F13/4068G06F13/4282G06F2213/0042
Inventor 王春华
Owner NANJING QINHENG MICROELECTRONICS CO LTD
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