Communication system and communication method

一种通信系统、信号线的技术，应用在通信系统与通信领域，能够解决波形质量下降、多点总线传输不适合高速传输等问题，达到抑制全反射的效果

Active Publication Date: 2020-09-04
SONY SEMICON SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing multipoint bus transmission, the waveform quality is greatly degraded due to the influence of reflection, etc., which creates a problem that the existing multipoint bus transmission is not suitable for high-speed transmission

Method used

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  • Communication system and communication method
  • Communication system and communication method
  • Communication system and communication method

Examples

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Embodiment approach

[0035] 2. Modification

Deformed example B

[0105] Figure 12 Modifications of the waveforms of the communication system 1 according to the modification A described above are shown. For example, if Figure 12 As shown in (C), in this modified example, the transmission device 40 does not output the high-speed transmission data HS-TxData and the low-speed transmission data LP-TxData, and the transmission device 40 is in a mode other than the HS mode and the LP mode (specifically ground, high-impedance mode). Accordingly, for example, as Figure 12 As shown in (D), in this modified example, the reception device 30 receives the high-speed transmission data HS alternately output from the transmission devices 10 and 20 via the data signal line 52 (a pair of positive signal line Dp and negative signal line Dn). -TxData and low-speed transmit data LP-TxData. Even in the case where some of the plurality of transmission devices are in a mode other than the HS mode and the LP mode (specifically, the high impedance mode) by thi...

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Abstract

A communication system according to one embodiment of the present disclosure transmits data from a plurality of sending devices to one receiving device via a pair of signal lines. In the communicationsystem, each of the sending devices comprises a mode control unit that controls a sending mode, a send data generation unit that generates data according to the sending mode, and a data sending unitthat sends the generated data to the receiving device. When the sending mode of a first sending device is an HS mode, the mode control unit in a second sending device makes the sending mode of the second sending device a termination mode in which an output end of the second sending device is terminated.

Description

technical field [0001] The present disclosure relates to a communication system and a communication method applied to the transmission of data signals. Background technique [0002] In recent years, drones, wearable devices, cars, etc. equipped with multiple cameras are rapidly increasing. In the case of sending image data from multiple cameras to an application processor or the like, high-speed interface specifications such as the C-PHY specification and the D-PHY specification developed by the MIPI (Mobile Industry Processor Interface) alliance are applied. PTL 1 proposes a technique for signal transmission in the D-PHY specification. [0003] reference list [0004] patent documents [0005] PTL 1: Japanese Patent Laid-Open No. 2017-195500 Contents of the invention [0006] Incidentally, in MIPI, data transmission is point-to-point transmission; therefore, there are many problems to be solved to support multiple cameras, such as limitation of the number of pins on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02G06F3/00
CPCH04L25/0298H04L25/0272H04L25/029H04L25/0278H04L25/0266G06F13/4265H04B3/32H04L7/0008H04L25/0204
Inventor 林宏暁城下宽司菅野纯谱下村幸雄
Owner SONY SEMICON SOLUTIONS CORP
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