Anti-theft system for a motor vehicle

Details Anti-theft system for a motor vehicle Anti-theft system for a motor vehicle

1998-11-24

2000-08-08

Paladini, Albert W.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 91, 180287, 340539, 34082569, 34082572, 341176, B60R 2510

Patent

active

061006033

ABSTRACT:
Antennas of an anti-theft system are controlled with a pulse width modulated square-wave signal by a power control unit and a phase control unit. The control is such that a change in power causes no change in phase, and vice versa. This is accomplished by varying the pulse width of the square-wave signal if a change in power occurs and at the same time shifting the pulse rise time such that the phase remains constant.

REFERENCES:
patent: 4897644 (1990-01-01), Hirano
patent: 5552641 (1996-09-01), Fischer et al.
patent: 5616966 (1997-04-01), Fischer et al.
patent: 5627529 (1997-05-01), Duckworth et al.
patent: 5790014 (1998-08-01), Campbell et al.
patent: 5905444 (1999-05-01), Zimmer
patent: 5926107 (1999-07-01), Glehr
International Application WO 98/50652 (Seubert et al.), dated Nov. 12, 1998 .

Affiliated with

Also associated with

Rating

Anti-theft system for a motor vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-theft system for a motor vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-theft system for a motor vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1152854