US PATENT SUBCLASS 381 / 103
.~ Having automatic equalizer circuit

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

98  DF  INCLUDING FREQUENCY CONTROL {3}
103.~ Having automatic equalizer circuit

DEFINITION

Classification: 381/103

Having automatic equalizer circuit:

(under subclass 98) Subject matter designed to compensate for an undesired amplitude-frequency and/or phrase-frequency characteristic of the system.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

28, for equalizers, per se.

369, Dynamic Information Storage or Retrieval,

133, for recording with equalization.