Car radio with an anti-theft device

Details Car radio with an anti-theft device Car radio with an anti-theft device

1996-10-07

1999-02-23

Tong, Nina

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

3404255, 340428, 340438, 340568, 307 102, 307 103, 180287, B60R 2510

Patent

active

058748881

ABSTRACT:
A car radio with an electronic anti-theft device, which device includes circuitry for electrically detecting the removal of the car radio from its build-in recess, and by which the function of the car radio is blocked as long as the anti-theft device is not deactivated after the removal. A simple arrangement with a highly reliable mode of operation is obtained in that the circuitry for electrically detecting the removal of the car radio includes a monitoring circuit, by which the presence of a connection from the car radio to at least one loudspeaker is monitored continuously, and by which the anti-theft device is activated immediately after the interruption of this connection.

REFERENCES:
patent: 4494114 (1985-01-01), Kaish
patent: 4679026 (1987-07-01), Kuakowski et al.
patent: 4683462 (1987-07-01), Takeda et al.
patent: 4720700 (1988-01-01), Seibold et al.
patent: 4734896 (1988-03-01), Soma et al.
patent: 4743894 (1988-05-01), Bochmaun
patent: 4808981 (1989-02-01), Seibold
patent: 4866416 (1989-09-01), Halzhauer et al.
patent: 5091856 (1992-02-01), Hasegawa et al.

Affiliated with

Also associated with

Rating

Car radio with an anti-theft device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Car radio with an anti-theft device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Car radio with an anti-theft device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-310783