Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
IN-VEHICLE TELEVISION RECEIVER
Document Type and Number:
Japanese Patent JPH0698270
Kind Code:
A
Abstract:

PURPOSE: To provide an in-vehicle television receiver which changes the processing route of a television broadcast wave corresponding to each running/ stopping state of a vehicle.

CONSTITUTION: This receiver is provided with an antenna 1, a tuner 2, a surface acoustic wave filter 3, a video intermediate frequency amplifier circuit 4, a vehicle condition discrimination circuit 5, a switching circuit 6, a resonance circuit 7, and a capacitor C1 for DC blocking. The vehicle condition discrimination circuit converts and output by receiving a signal from a velocity sensor, etc., to a control voltage in accordance with the running/stopping state of the vehicle. The switching circuit 6 can be operated by receiving such control voltage. The frequency selection characteristic of a filter circuit consisting of the resonance circuit 7 and the surface acoustic wave filter 3 located at the input stage of the intermediate frequency amplifier circuit 4 can be automatically switched by switching the resonance circuit constant of the filter circuit by turning on/off the switching circuit 6.


Inventors:
TANAKA ATSUSHI
Application Number:
JP24673992A
Publication Date:
April 08, 1994
Filing Date:
September 16, 1992
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZANABUI INFUOMATEIKUSU KK
International Classes:
H04N5/44; (IPC1-7): H04N5/44
Attorney, Agent or Firm:
Kazuko Tomita (1 outside)