mipi C-PHY signal generation method, device and system

A signal generation device, C-PHY technology, applied in transmission systems, electrical components, etc., can solve problems such as application scenario limitations and unfavorable applications, and achieve the effect of simplifying processing flow, low hardware cost, and avoiding data interactive processing

Active Publication Date: 2022-01-25
WUHAN JINGLI ELECTRONICS TECH
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AI Technical Summary

Problems solved by technology

In order to meet the test requirements, a signal generator capable of generating C-PHY signals is required, but currently there are only a few foreign chips on the market that can output C-PHY signals, and there are too many restrictions on application scenarios, which is not conducive to more scenarios application under

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  • mipi C-PHY signal generation method, device and system
  • mipi C-PHY signal generation method, device and system
  • mipi C-PHY signal generation method, device and system

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0030] Such as figure 1 As shown, a kind of MIPI C-PHY signal generating device proposed by the present invention includes a command sending module, a power control module, a high-speed / low-speed signal superposition processing module and a control processing module, an image generation module, and a C- PHY protocol processing module, physical signal mapping processing module, high-speed signal transmission interface.

[0031] The instruction sending module is used for generating C-PHY signal start parameters. The commands sent by the command sending module include the startup parameters required to generate the C-PHY signal: the number of lanes, the parameters of the front and rear shoulders in the horizontal / vertical direction, resolution, refresh rate, low-spe...

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Abstract

The present invention discloses a MIPI C-PHY signal generation method, device and system. The method includes the steps of: 1) receiving C-PHY signal start parameters and image source data, and performing data management and flow control according to the start parameters; 2) Encapsulate the code stream in the startup parameters to form an LP signal package; 3) perform one-hot encoding on the data of the LP signal package, and map the encoded LP signal to 3-wire for transmission; 4) convert the image source Encapsulate the data, distribute the packaged HS signal to each lane; 5) encode the HS signal and then output it, convert the parallel HS signal into serial output of each wire line; 6) convert the high-speed signal and The low-speed signals are mixed to form a C-PHY signal source and output to the module. The present invention supports a maximum of 6 lanes in parallel, and the data transmission speed of each lane is 17.1Gbps, which meets the throughput requirements of C-phy modules with any resolution on the market. It has strong adaptability, simple layout and wiring, and low hardware cost. It is worthy of popularization and application. .

Description

technical field [0001] The present invention relates to the technical field of liquid crystal modules, in particular to a MIPI C-PHY signal generation method, device and system. Background technique [0002] With the advancement of science and technology, people's demand for high-definition resolution display modules is becoming stronger and stronger. At present, the MIPI DPHY interface cannot meet the transmission rate requirements of 10Gbps and above due to its rate bottleneck. Therefore, the VESA Association proposed the MIPI C-PHY interface protocol to meet higher-speed transmission requirements. This protocol defines a transmission rate of 5.7Gbps per lane, supports a maximum of 6 lanes, and a throughput of up to 34gbps. Currently, LCD module factories are developing C-PHY interface display modules to meet market demand. Before the C-PHY module enters the market, the module needs to be tested to determine whether the module is a qualified product. Among them, the most ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L65/75
CPCH04L2212/00H04L65/75
Inventor 阳芬许恩
Owner WUHAN JINGLI ELECTRONICS TECH
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