Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-06-05
2007-06-05
Rao, Andy (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240130, C375S240140
Reexamination Certificate
active
10014689
ABSTRACT:
Methods and systems are disclosed for decoding image data including I-picture, P-picture, and B-picture encoded data. A method includes receiving encoded image data and selectively performing a modified inverse discrete cosine transform (IDCT) process to generate output pixel array blocks at a lower resolution than the resolution of the received image data. The image data can be 8×8 pixel array blocks, which are used to produce lower resolution pixel array blocks such as, for example, 4×8 or 4×4 pixel array blocks. In certain instances, after the IDCT process is performed, the resulting pixel data is up-sampled before motion compensation is performed. Furthermore, in certain instances, the resulting pixel data is subjected to motion compensation and scaled to display size prior to display.
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Tsukagoshi Ikuo
Wang Jason (Naxin)
Finnegan Henderson Farabow Garrett & Dunner LLP
Rao Andy
Sony Corporation
Sony Electronics
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