Keyless automobile door lock/unlock, ignition switching and burglar alarm system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4673914
SERIAL NO

06591507

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The system is an electric control circuit and associated components including a door locking circuit and an ignition circuit. The ignition circuit is connected to the vehicle battery power through a latch circuit. The latch circuit has alternative 'lock' and 'unlock' modes for, respectively, connecting battery power to and disconnecting battery power from the ignition circuit. A code sensing circuit provides switching for the latch circuit. This circuit includes means for programming a preselected unlocking code. The code sensing circuit includes code inputting means which might be a push button pad, a barcode reader, an optical binary-code reader, or a magnetic reader; the inputting means being mounted on an entry door of the vehicle. The code sensing circuit includes comparator means for comparing the inputted code to the preprogrammed code for the sending of an unlocking signal to the latch circuit. The control circuit includes an alarm circuit, effective in the 'lock' mode of the latch circuit to effect the sounding of the vehicle warning horns when battery power is connected to the motor ignition coil by external means. The ignition circuit includes manual switches for engine starting and stopping and for power to accessories. The locking circuit includes interior switches for selectively locking and unlocking entry doors and the trunk lid.

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First Claim

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Ki-Chang 125-6 Jongam-dong, Sungbuk-ku, Seoul 132, KR 6 40

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4438752 Vehicle ignition system 12 1981
 
BEARD, GEORGE W. (1)
* 4327353 Security system 47 1980
 
Nutek Corporation (1)
* 4463340 Anti-theft control system 67 1981
 
Jenkins; O. C. (1)
* 4371052 Anti-theft device for motor vehicles 9 1980
 
Roman Industries, Inc. (1)
* 4320382 Automotive alarm 14 1980
 
NISSAN MOTOR CO., LTD. (1)
* 4446380 Keyless device actuating system for an automotive vehicle 97 1982
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (6)
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6353383 Alarm apparatus for monitoring activity in a vehicle 7 2000
9678260 Omnidirectional high chroma red structural color with semiconductor absorber layer 0 2015
 
Fortin Auto Radio Inc. (1)
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Safetystream Mobile Limited (3)
7920048 Method for using a table of data to control access and a locking mechanism using same 0 2006
* 2006/0250,217 Method for using a table of data to control access and a locking mechanism using same 5 2006
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TOYOTA MOTOR CORPORATION (7)
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* 2009/0153,953 Multi-Layer Photonic Structures Having Omni-Directional Reflectivity and Coatings Incorporating The Same 26 2009
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ROBERT BOSCH GMBH (2)
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HONDA MOTOR CO., LTD. (2)
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CURITEL COMMUMICATIONS, INC. (1)
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VOLVO CAR CORPORATION (1)
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TOYOTA JIDOSHA KABUSHIKI KAISHA (3)
9612369 Red omnidirectional structural color made from metal and dielectric layers 0 2014
9664832 Omnidirectional high chroma red structural color with combination semiconductor absorber and dielectric absorber layers 0 2015
9658375 Omnidirectional high chroma red structural color with combination metal absorber and dielectric absorber layers 0 2015
 
CATERPILLAR INC. (1)
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SIEMENS VDO AUTOMOTIVE CORPORATION (1)
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VUZITECH, LLC (1)
9672723 Security system for a motorized cycle 0 2015
* Cited By Examiner