Apparatus and method for applying unequal error protection during wireless video transmission

Abstract

A method for wireless transmission of video including component data bytes representing components of a video block includes applying transmission bit coding adapted to provide relatively greater error protection to wireless transmission bits of a wireless transmission frame corresponding to bits of the component data byte which are more visually significant than to those transmission bits of the transmission frame corresponding to bits of the component data byte which are less visually significant.

1 . A wireless transmitter for wireless transmission of video including component data bytes representing components of a video block, said transmitter comprising:
 a transmission bit coding unit adapted to apply relatively greater error protection to wireless transmission bits of a wireless transmission frame corresponding to bits of the component data byte which are more visually significant than to transmission bits of the wireless transmission frame corresponding to bits of the component data byte which are less visually significant.   
     
     
         2 . The wireless transmitter of  claim 1 , further comprising:
 a color converter for converting an uncompressed video signal to uncompressed video block components; and an antenna for transmitting over a wireless link.   
     
     
         3 . The wireless transmitter of  claim 2 , wherein the components comprise a luminance component and chrominance components. 
     
     
         4 . The wireless transmitter of  claim 2 , wherein the antenna comprises a multiple-input multiple-output (MIMO) antenna. 
     
     
         5 . The wireless transmitter of  claim 1  further adapted to perform a de-correlating transform selected from the group consisting of a discrete cosine transform (DCT) and a wavelet transform. 
     
     
         6 . The wireless transmitter of  claim 1 , wherein relatively greater error protection enables error recovery of a larger number of corrupted bits than is enabled by relatively lower error protection. 
     
     
         7 . The wireless transmitter of  claim 1 , wherein relatively lower error protection is provided to transmission bits corresponding to lower order bits of a component data byte than is provided to transmission bits corresponding to higher order bits of the component data byte. 
     
     
         8 . The wireless transmitter of  claim 1 , wherein relatively higher error protection is provided to transmission bits corresponding to higher order bits of a component data byte than is provided to transmission bits corresponding to lower order bits of the component data byte. 
     
     
         9 . The wireless transmitter of  claim 1 , wherein relatively lower error protection is provided to bits associated with component data bytes representing relatively higher spatial frequencies of the video block than to bits associated with component data bytes representing relatively lower spatial frequencies components of the video block. 
     
     
         10 . A method for wireless transmission of video including component data bytes representing components of a video block, said method comprising:
 applying transmission bit coding adapted to provide relatively greater error protection to wireless transmission bits of a wireless transmission frame corresponding to bits of the component data byte which are more visually significant than to those transmission bits of the transmission frame corresponding to bits of the component data byte which are less visually significant.   
     
     
         11 . The method of  claim 10 , further comprising the step of: converting an input uncompressed video signal to uncompressed video component blocks. 
     
     
         12 . The method of  claim 11 , wherein the component block comprise a luminance component and chrominance components. 
     
     
         13 . The method of  claim 10  further comprising the step of performing a de-correlating transform selected from the group consisting of a discrete cosine transform (DCT) and a wavelet transform.