US PATENT SUBCLASS 382 / 250
.~.~ Discrete cosine or sine transform

Current as of: June, 1999
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382 /   HD   IMAGE ANALYSIS

232  DF  IMAGE COMPRESSION OR CODING {14}
248  DF  .~ Transform coding {2}
250.~.~ Discrete cosine or sine transform

DEFINITION

Classification: 382/250

Discrete cosine or sine transform:

(under subclass 248) Subject matter in which image data is partitioned into blocks and transformed using the discrete cosine or the discrete sine transform.

SEE OR SEARCH CLASS

348, Television,

395, and 403 through 408 for transform coding of television signals, where the television is an integral part of the system.

358, Facsimile,

432, 433 for discrete cosine transform of images in a facsimile environment.