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Video frame rate compensation through adjustment of vertical blanking

A vertical blanking interval and frame rate technology, applied in the field of graphics processing and video transmission, can solve problems such as waste, waste of network bandwidth, poor image quality, etc.

Active Publication Date: 2015-09-16
SONY COMPUTER ENTERTAINMENT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the source frame rate fluctuates and stuttering occurs, then valuable compression resources will be wasted towards compressing the same frames
This can result in poorer image quality for encoded frames than would be possible if compression resources were used more efficiently
Also, if the same frames are being streamed over the network, limited network bandwidth is wasted on unnecessary frames

Method used

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  • Video frame rate compensation through adjustment of vertical blanking
  • Video frame rate compensation through adjustment of vertical blanking
  • Video frame rate compensation through adjustment of vertical blanking

Examples

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Embodiment Construction

[0025] introduce

[0026] While the following detailed description contains many specific details for purposes of illustration, those skilled in the art will recognize that many modifications and changes to the following details are within the scope of the invention. Accordingly, without losing the generality of the claimed invention and without imposing limitations on the claimed invention, exemplary embodiments of the present disclosure described below are set forth.

[0027]It should be noted that certain aspects of this disclosure relate to video transmission, including rendering and scanout of video frames for transmission over a video interface (sometimes referred to herein as a display interface), and video streaming to a remote device, including compression and Transmission of video frames for cloud gaming implementation. Additional illustrative details and examples of these aspects can be found in U.S. Nonprovisional Patent Application No. 14 / 135,374 to Roelof Rode...

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Abstract

Aspects of the present disclosure relate to systems and methods configured to adjust the timing of frame scanout in response to fluctuations in the source frame rate of graphics content rendered by a processing unit. In certain implementations, a vertical blanking interval generated during scanout of frames from a frame buffer may be adjusted in response to detected changes in the frame rate at which the source content is generated. In certain implementations, rendered graphics may be streamed over a network for display in real-time on a remote device, and the scanout out of frames may be adjusted in order to better match the rate of compression and streaming to a variable frame rate of the source content

Description

[0001] priority claim [0002] This application requests co-pending U.S. Provisional Application No. entitled "VIDEO FRAME RATE COMPENSATION THROUGH ADJUSTMENT OF VERTICAL BLANKING" (Attorney Docket No. SCEA13043US00) filed March 12, 2014, prior to common assignment to Roelof Roderick Colenbrander 61 / 951,729, the entire contents of which are incorporated herein by reference. technical field [0003] This disclosure relates to graphics processing and video transmission. Certain aspects of the present disclosure relate to systems and methods for frame rate compensation when compressing and streaming rendered graphics over a network. Background technique [0004] Rendering graphics for real-time transmission to a display device is a complex process that incorporates many carefully developed techniques to ensure that newly produced frames are transmitted from source to display with proper timing. Typically, the process begins with a processing unit, typically a graphics proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01H04N5/14
CPCH04N5/04H04N7/013G06T1/60G09G2310/062G09G5/395G09G2360/12G06F3/14G06F3/1423G09G2340/02G09G2340/0435G09G2350/00G09G2360/08G09G2370/022G09G5/001G09G2310/08G09G2360/127G09G2370/12
Inventor R.R.科伦布兰德
Owner SONY COMPUTER ENTERTAINMENT INC
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