US PATENT SUBCLASS 334 / 1
COMBINED DIVERSE-TYPE TUNERS


Current as of: June, 1999
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334 /   HD   TUNERS

1COMBINED DIVERSE-TYPE TUNERS {2}
2  DF  .~> With plural diverse disk or plural diverse cylinder-type turret tuners
3  DF  .~> With mutual tuning element


DEFINITION

Classification: 334/1

(under the class definition) Subject matter wherein the tuning unit consists of two or more tuners of different types connected together either mechanically and/or electrically to form a single unitary tuner.

(1) Note. One tuner usually covers a lower frequency while the second tuner cover a higher frequency as, for example, a VHF-UHF tuner. Gang operated or combined tuners which cover only one frequency range, such as for example an intermediate frequency tuning strip, is not considered a combined tuner for this class.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

10.45, for operators used on plural shafts.

455, Telecommunications, appropriate subclasses for radio receivers which may use a plurality of tuning means.