Electronic system and method for display using a decoder and arbiter to selectively allow access to a shared memory

  • US 7,321,368 B2
  • Filed: 06/19/2002
  • Issued: 01/22/2008
  • Est. Priority Date: 08/26/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An electronic system comprising:

  • a main memory having stored therein data corresponding to images to be decoded and also decoded data corresponding to images that have previously been decoded;

    a bus coupled to the memory;

    a decoder coupled to the bus for receiving compressed images and for outputting data for displaying the decoded images on a display device, the decoder receiving data from the main memory corresponding to at least one previously decoded image and to a current image to be decoded and outputting decoded data corresponding to a current image to be displayed, the current image being stored in the main memory;

    a microprocessor system coupled to the main memory, the microprocessor system storing non-image data in and retrieving data from the main memory; and

    an arbiter circuit coupled to both the microprocessor system and the decoder for controlling the access to said main memory by the decoder and the microprocessor.

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