US PATENT SUBCLASS 348 / 398
.~.~.~ Sub-band encoding (e.g., low horizontal/low vertical frequency, low horizontal/high vertical frequency)

Current as of: June, 1999
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348 /   HD   TELEVISION

384  DF  BANDWIDTH REDUCTION SYSTEM {7}
390  DF  .~ Bit-rate reduction {11}
397  DF  .~.~ Using separate coders for different picture features (e.g., highs, lows) {1}
398.~.~.~ Sub-band encoding (e.g., low horizontal/low vertical frequency, low horizontal/high vertical frequency)

DEFINITION

Classification: 348/398

Sub-band encoding (e.g., low horizontal/low vertical frequency, low horizontal/high vertical frequency):

(under subclass 397) Subject matter wherein the signal is divided into a plurality of frequency bands.