EP2648410A1
Active / In Force
EP
⏱️ 6.4 years remaining
Transmission of video utilizing static content information from video source
Assignee: Broadcom Corp
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Filing: 2013-04-03
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Granted: —
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Expires: 2033-04-03
Abstract
Abstract Methods for removing redundancies in a video stream based on detection of static portions of the video stream prior to encoding of the video stream for wireless transmission. In various embodiments, the generation and buffering of a video stream having a series of video frames is monitored to detect static portions of the video stream. Static content indication data representing static portions of the video stream are communicated to a wireless access device for use in transmission of the video stream. Communication of the static content indication data may occur via a standardized communication interface and protocol. In one embodiment, static video content may be identified by ascertaining portions (e.g., windows in a rendered desktop) of a video frame buffer that are actively addressed by content generators such as software applications, a graphics processing unit, etc.
Inventors
- 👤 Murat Mese
- 👤 Brima Ibrahim
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 07:04
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/10; H04N19/134; H04N19/167; H04N19/102; H04N19/132; H04N19/136; H04N19/137; H04N19/169; H04N19/17; H04N19/174; H04N19/176; H04N19/46
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
78 words
A method for use during generation of a video stream having a plurality of video frames, the method supporting wireless transmission of the video stream, the method comprising: monitoring the generation of the video stream to detect a static portion of the video stream; generating static content indication data representing the static portion of the video stream; and communicating the static content indication data to a wireless access device for use in wireless transmission of the video stream.
Claim 2
Dependent Claim
50 words
The method of claim 1, the plurality of video frames stored in a video frame buffer, wherein monitoring the generation of the video stream to detect a static portion of the video stream comprises: determining a portion of the video frame buffer that is being addressed by a video source.
Claim 3
Dependent Claim
63 words
The method of claim 2, the portion of the video frame is at least one window demarcated by memory addresses of the video frame buffer, wherein monitoring the generation of the video stream to detect a static portion of the video stream further comprises: identifying portions of the video buffer outside of the at least window as static portions of the video stream.
Claim 4
Dependent Claim
16 words
The method of claim 3, further comprising identifying static portions of the at least one window.
Claim 5
Independent Claim
31 words
The method of any preceding claim, wherein communicating the static content indication data to a wireless access device further comprises signaling the static content indication data through a standardized communication interface.
Claim 6
Dependent Claim
27 words
The method of claim 5, wherein signaling the static content indication data through a standardized communication interface comprises signaling through an optional channel of the communication interface.
Claim 7
Independent Claim
40 words
The method of any preceding claim, the wireless access device including an encoder that compresses the video stream, further comprising: based at least in part on the static content indication data, creating a static indication within the compressed video stream.
Claim 8
Independent Claim
15 words
The method of any preceding claim, wherein the video stream is a rendered video stream.
Claim 9
Independent Claim
12 words
The method of any preceding claim performed by a graphics processing unit.
Claim 10
Independent Claim
98 words
A method for detecting static portions of a video stream having a plurality of video frames successively stored as content in a video frame buffer, the method supporting encoding of the video stream for receipt by a display device, comprising: comparing first content of the video frame buffer to second content of the video frame buffer; based on the comparison, identifying a static portion of the first and second content; generating static content indication data relating to the static portion of the first and second content; and communicating the static content indication data to a wireless access device.
Claim 11
Dependent Claim
31 words
The method of claim 10, the video stream a rendered video stream, the first and second content corresponding to at least of portion of first and second consecutive video frames, respectively.
Claim 12
Independent Claim
95 words
An apparatus that supports static content detection in a video stream having a plurality of video frames, the apparatus comprising: a video frame buffer operable to store the plurality of video frames of the video stream; and static content detection circuitry coupled to the video frame buffer, the static content detection circuitry operable to: monitor access to the video frame buffer to detect a static portion of the video stream; generate static content indication data representing the static portion of the video stream; and signal the static content indication data to a wireless access device.
Claim 13
Dependent Claim
47 words
The apparatus of claim 12, wherein the static content detection circuitry is operable to monitor access to the video frame buffer to detect a static portion of the video stream through determining a portion of the video frame buffer that is being addressed by a video source.
Claim 14
Dependent Claim
23 words
The apparatus of claim 12 or 13, the static content indication data signaled to the wireless access device through a standardized communication interface.
Claim 15
Independent Claim
15 words
The apparatus of any of claims 12 to 14 operable as a graphics processing unit.
References Cited (Backward Citations)
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