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Title:
TELEVISION TUNER
Document Type and Number:
Japanese Patent JPH05176332
Kind Code:
A
Abstract:

PURPOSE: To receive even satellite broadcasting only by one coaxial cable by executing distributing processing after amplifying a broadcasting signal.

CONSTITUTION: A ground broadcasting tuner part 12B applies a ground broadcasting wave to a channel selecting circuit 30 through a selector circuit 28, selects a required ground broadcasting channel, converts the selected channel signal into a prescribed intermediate frequency signal IF2, and outputs the signal IF2. The tuner part 12B is constituted so that the signal IF2 is amplified by an amplifier circuit 32, detected by a detection circuit (DET) 34 and then processed by a signal processing circuit 36 to receive and obtain the required ground broadcasting channel. In a television tuner 2, an input to a main antenna terminal 10A is distributed by a distributer 18 and the distributed output is outputted to the tuner part 12B. Thus both of satellite and ground broadcasting can be received by simple connection only for connecting a coaxial cable to the input terminal of the main antenna, so that connecting work can be simplified.


Inventors:
NAKAJIMA YASUHISA
Application Number:
JP35732091A
Publication Date:
July 13, 1993
Filing Date:
December 25, 1991
Export Citation:
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Assignee:
SONY CORP
International Classes:
H04N5/44; H04N7/20; (IPC1-7): H04N5/44; H04N7/20
Attorney, Agent or Firm:
Kei Tanabe



 
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