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Graphics display system with video scaler

  • US 8,493,415 B2
  • Filed: 04/05/2011
  • Issued: 07/23/2013
  • Est. Priority Date: 11/09/1998
  • Status: Expired due to Term
First Claim
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1. A method for processing video data, the method comprising:

  • performing by one or more processors or circuits in a video processing device, said one or more processors or circuits comprising a video scaler, a memory, and a scaler engine;

    receiving a video image by the video processing device;

    determining whether the video scaler requires either less memory bandwidth to scale the video image before writing the scaled video image to the memory or to scale the video image after reading the video image from the memory; and

    scaling the video image based on the determination,wherein an upscaled video image is not scaled before being written into the memory and is scaled after being read from the memory,wherein a downscaled video image is scaled before being written into the memory and is not scaled after being read from the memory.

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