Method for transmitting video signals from an application on a server over an IP network to a client device
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United States of America Patent
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Dec 29, 2015
Grant Date -
Jul 10, 2014
app pub date -
Aug 27, 2012
filing date -
Aug 26, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for transmitting a video signal from an application running on a server over an IP network to a client device. The application is drawing its content, in a plurality of sequential drawing events, into a virtual frame buffer. Simultaneously, each drawing event is registered in a list of drawing events and each drawing event is associated with an address (location) of each area that was affected by this drawing event. The list is repetitively checked and if any area have changed since previous periodic check, such area is retrieved, segmented into blocks of standardized size and transmitted, together with its address in a frame, over the IP network to the client. On the client side the encoded blocks are received and combined, using the address data, into frames of an encoded video stream that can be directly fed into an industry standard decoder of client device.
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