Invention Grant
- Patent Title: Electronic system and method for selectively allowing access to a shared memory
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Application No.: US12857455Application Date: 2010-08-16
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Publication No.: US07898548B2Publication Date: 2011-03-01
- Inventor: Jefferson Eugene Owen , Raul Zegers Diaz , Osvaldo Colavin
- Applicant: Jefferson Eugene Owen , Raul Zegers Diaz , Osvaldo Colavin
- Applicant Address: US TX Coppell
- Assignee: STMicroelectronics, Inc.
- Current Assignee: STMicroelectronics, Inc.
- Current Assignee Address: US TX Coppell
- Agent David V. Carlson; Lisa K. Jorgenson
- Main IPC: G06F15/167
- IPC: G06F15/167 ; G09G5/36 ; G06T9/00

Abstract:
An electronic system, an integrated circuit and a method for display are disclosed. The electronic system contains a first device, a memory and a video/audio compression/decompression device such as a decoder/encoder. The electronic system is configured to allow the first device and the video/audio compression/decompression device to share the memory. The electronic system may be included in a computer in which case the memory is a main memory. Memory access is accomplished by one or more memory interfaces, direct coupling of the memory to a bus, or direct coupling of the first device and decoder/encoder to a bus. An arbiter selectively provides access for the first device and/or the decoder/encoder to the memory based on priority. The arbiter may be monolithically integrated into a memory interface. The decoder may be a video decoder configured to comply with the MPEG-2 standard. The memory may store predicted images obtained from a preceding image.
Public/Granted literature
- US20100309211A1 ELECTRONIC SYSTEM AND METHOD FOR SELECTIVELY ALLOWING ACCESS TO A SHARED MEMORY Public/Granted day:2010-12-09
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