Image data processing method and apparatus of same
Scaling image signals using horizontal pre scaling, vertical scaling, and horizontal scaling
Universal MPEG decoder with scalable picture size
Method and apparatus for scaling up and down a video image Patent #: 5874937
ApplicationNo. 938489 filed on 09/30/1997
US Classes:348/425.1, Associated signal processing345/541, Shared memory345/555, For storing compressed data348/443, Involving both line number and field rate conversion (e.g., PAL to NTSC)348/458, Changing number of lines for standard conversion348/581, Size change375/240.21, Subsampling375/240.25Specific decompression process
ExaminersPrimary: Peng, John K.
Assistant: Natnael, Paulos M.
Attorney, Agent or Firm
International ClassesH04N 007/01
AbstractA video processing unit (13) that decodes compressed video data and resizes the image represented by the video data. The video processing unit (13) has two processing engines--a decoding engine (24) and a scaling engine (25), which share a memory (23). A memory manager (22) handles data requests from the two engines, and handles reading and writing of the memory (22).