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Method and system for enhancing transmission reliability of video information over wireless channels

A technology of video information and wireless channel, which is applied in the field of enhancing the transmission reliability of video information, and can solve problems such as wireless interface that does not provide uncompressed video, wireless LAN interference, etc.

Inactive Publication Date: 2009-03-25
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although consumer electronics manufacturers are beginning to offer HDMI-compatible devices, there is no suitable wireless (eg, radio frequency (RF)) technology capable of sending uncompressed HD video signals
Wireless Local Area Networks (WLAN) and similar technologies can experience interference problems when several devices that do not have the bandwidth to carry an uncompressed HD signal are connected and do not provide a wireless interface for sending uncompressed video on the 60GHz band

Method used

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  • Method and system for enhancing transmission reliability of video information over wireless channels
  • Method and system for enhancing transmission reliability of video information over wireless channels
  • Method and system for enhancing transmission reliability of video information over wireless channels

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Embodiment Construction

[0030] This application claims priority to US Provisional Patent Application Serial No. 60 / 787,250, filed March 29, 2006, which is hereby incorporated by reference.

[0031] The present invention provides a method and system for enhancing the transmission reliability of video packets from a transmitter to a receiver over a wireless channel (eg, RF). In one embodiment, this is achieved by sub-packaging the uncompressed video information in each packet and providing error detection / correction information for each sub-packet in each packet, such as multiple CRC check.

[0032] Even if the wireless medium has sufficient bandwidth to support uncompressed HD 1080p video, there is no need to resend the entire uncompressed video stream in the event of a transmission error in some video packets. Typically, a video frame of pixels is divided into scan lines. Each scan line contains an integer number of pixels, and a pixel is represented by a plurality of pixel components. The quantiz...

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Abstract

A method and system for enhancing transmission reliability of video information over a wireless channel is provided. The video information includes pixels, each having a plurality of components and each component including video information bits that are placed in sub-packets within a packet. Error detection information is determined for one or more sub-packets, and placed in the packet. Then the packet is transmitted from a transmitter to a receiver a wireless channel, wherein the receiver uses the error detection information per sub-packet to check for transmission errors and request retransmission of erroneous video information bits based on their perceptual importance.

Description

technical field [0001] The present invention relates to the transmission of video information, in particular, to enhancing the transmission reliability of video information. Background technique [0002] With the increase of high-quality video, more electronic devices (eg, consumer electronic devices) use high-definition (HD) video, which may require multiple gigabits per second (Gbps) in transmission bandwidth. Thus, when such HD video is transmitted between devices, conventional transmission methods compress the HD video to a fraction of its size to reduce the required transmission bandwidth. The compressed video is then decompressed for consumption. However, with each compression and subsequent decompression of video data, some data may be lost and picture quality may degrade. [0003] The High-Definition Multimedia Interface (HDMI) specification allows uncompressed HD signals to be transmitted between devices via cables. While consumer electronics manufacturers are be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/12H04L12/56H04N7/24
CPCH04L1/1887H04N21/2383H04L1/1607H04L1/1877H04N21/4382H04L29/0651H04L29/06027H04L1/0075H04L1/007H04N21/43637H04L1/0061H04L29/06523H04L1/1614H04N21/6375H04L1/0083H04L65/607H04L65/80H04L65/70H04L1/16H04N7/24H04L65/1101
Inventor 邵怀荣哈基拉特·辛格敖超
Owner SAMSUNG ELECTRONICS CO LTD
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