US PATENT SUBCLASS 348 / 421
.~.~.~ PCM represents minimum, maximum, or average of block

Current as of: June, 1999
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348 /   HD   TELEVISION

384  DF  BANDWIDTH REDUCTION SYSTEM {7}
390  DF  .~ Bit-rate reduction {11}
420  DF  .~.~ Involving block coding {1}
421.~.~.~ PCM represents minimum, maximum, or average of block

DEFINITION

Classification: 348/421

PCM represents minimum, maximum, or average of block:

(under subclass 420) Subject matter wherein a digital binary code is representative of the lowest value of the block or the greatest value of the block or the sum of the values of a two-dimensional spatial array of values divided by the number of elements in the array.