US PATENT SUBCLASS 369 / 86
STORAGE OR RETRIEVAL OF SPATIALLY RELATED ACOUSTIC SIGNALS (E.G., STEREO)

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

86STORAGE OR RETRIEVAL OF SPATIALLY RELATED ACOUSTIC SIGNALS (E.G., STEREO) {5}
87  DF  .~> Simulated spatial effect (e.g., pseudo-stereo)
88  DF  .~> With transformation or intentional distortion of information signal (e.g., preemphasis)
89  DF  .~> Quadraphonic {1}
91  DF  .~> Having distinct electrical channels
92  DF  .~> Including distinct storage tracks on record medium

DEFINITION

Classification: 369/86

STORAGE OR RETRIEVAL OF SPATIALLY RELATED ACOUSTIC SIGNALS (E.G., STEREO):

(under the class definition) Subject matter in which the signal to be stored is responsive to, or the retrieved signal produces, plural audible vibrations which have a common time base and a spatial relationship to produce the effect of position or depth.

(1) Note. The plural signals are usually stored and received separately and concurrently.

(2) Note. The signals are often combined (e.g., as sum or difference signals) before storage and separated after retrieval.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for a radio combined with a storage or retrieval device in which either may be stereophonic.

SEE OR SEARCH CLASS

381, Electrical Audio Signal Processing Systems and Devices, 2,.