US PATENT SUBCLASS 455 / 179.1
.~.~ Channel or station selection

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
150.1  DF  .~ Signal selection based on frequency (e.g., tuning) {13}
179.1.~.~ Channel or station selection {8}
180.1  DF  .~.~.~> Combined with band selection {1}
181.1  DF  .~.~.~> Time controlled
182.1  DF  .~.~.~> With frequency control {1}
182.3  DF  .~.~.~> Fine tuning
183.1  DF  .~.~.~> With frequency synthesizer {1}
184.1  DF  .~.~.~> With comparing desired and existing tuning conditions
185.1  DF  .~.~.~> With channel information storage {1}
187.1  DF  .~.~.~> Separate tuned circuits for each channel or station

DEFINITION

Classification: 455/179.1

Channel or station selection:

(under subclass 150.1) Subject matter including means to tune the receiver to a desired carrier wave frequency.

(1) Note. This subclass and the indented subclasses may also include TV channel or station selections wherein the TV receiver is broadly claimed and does not include any particular TV processing circuitry, e.g., horizontal and vertical sync, circuitry, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73+, for transceivers which may include channel selection means.

151.1, for remote control of channel or station selection.

160.1, for receivers with plural selection modes which may include channel selection means.

161.1+, for frequency scanning receivers which may include channel selection means, particularly subclasses 166.1+ for channel skipping or priority channel selection. 170.1+, for receivers with mechanical or electromechanical selection which may include channel selection means.

SEE OR SEARCH CLASS

334, Tuners, appropriate subclasses for tuners, per se, with channel or station selection means.

348, Television,

570, and 731+ for television channel or station selections with such particular processing circuitry.