The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2015
Filed:
May. 24, 2006
Andrew Crosland, Aylesbury, GB;
Roger May, Bicester, GB;
Andrew Crosland, Aylesbury, GB;
Roger May, Bicester, GB;
Altera Corporation, San Jose, CA (US);
Abstract
A video processing device has an input for receiving video data, at least one processing circuit, for generating processed video data from the received video data, and a memory, for receiving the processed video data. An output circuit reads the processed video data from the memory, and generates frames of data including at least the processed video data. In order to be able to operate with an output clock frequency that may differ from the ideal output clock frequency, it is possible to vary the frame size, that is, the number of pixels of data in a frame. If an amount of processed video data stored in the memory exceeds an upper threshold, then the frame size can be reduced by reducing the number of pixels of blanking data in the output frame, thereby increasing the rate at which data is read from the memory. Conversely, if an amount of processed video data stored in the memory is lower than a lower threshold, then the frame size can be increased by increasing the number of pixels of blanking data in the output frame, thereby reducing the rate at which data is read from the memory.