Passenger detection system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6325413
APP PUB NO 20010013697A1
SERIAL NO

09191387

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A passenger detection system comprises an antenna electrode which is provided to the dashboard of a car, an oscillation circuit for generating a high frequency low voltage oscillation signal in order to generate a weak alternating electric field around the antenna electrode, a current detection section for detecting a transmission current which passes between the oscillation circuit and the antenna electrode depending on the weak alternating electric field which is generated around the antenna electrode, a phase difference detection section for detecting the phase difference between the oscillation signal supplied from the oscillation circuit and an output signal which is supplied to the antenna electrode, and a control circuit for judging the presence or absence of a passenger seated on the seat based on the detected phase difference and judging the distance between the passenger and the dashboard based on the detected transmission current. The passenger detection system is connected with an air bag unit, and the air bag unit is set at a `no deployment mode` if it is judged that no passenger is seated on the seat or the distance between the passenger and the dashboard is less than a minimum allowable distance, thereby the passenger who is close to the dashboard is protected from secondary injury due to strong deployment of the air bag.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HONDA ELESYS CO., LTD.TOKYO72

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ofuji, Masahiro Kanagawa, JP 8 229
Saito, Takashi Osaka, JP 418 4261

Cited Art Landscape

Patent Info (Count) # Cites Year
 
YAZAKI CORPORATION (1)
* 6144343 Display antenna center 7 1998
 
Other [Check patent profile for assignment information] (1)
* 4370658 Antenna apparatus and method for making same 20 1981
 
NIDEC ELESYS AMERICAS CORPORATION (1)
* 5948031 Vehicle passenger sensing system and method 91 1996
 
KANSEI CORPORATION (1)
* 6043736 Weighing apparatus, apparatus for detecting auxiliary-seat mounting direction, person-on-board protecting apparatus, and apparatus for giving warning about seating condition 32 1998
 
HONDA ELESYS CO., LTD. (1)
* 6043743 Passenger detecting system and passenger detecting method 68 1998
 
TRW VEHICLE SAFETY SYSTEMS INC. (1)
* 6018693 Occupant restraint system and control method with variable occupant position boundary 42 1997
 
AUTOMOTIVE TECHNOLOGIES INTERNATIONAL, INC. (1)
* 5848802 Vehicle occupant position and velocity sensor 281 1997
 
ROBERT BOSCH CORPORATION (1)
* 6026340 Automotive occupant sensor system and method of operation by sensor fusion 95 1998
 
DELPHI TECHNOLOGIES, INC. (1)
* 5997033 Adaptive airbag inflation method and apparatus 42 1997
 
TOYODA GOSEI CO., LTD. (1)
* 5868423 Air bag system 16 1997
 
DELPHI DELCO ELECTRONICS EUROPE GMBH (1)
* 5926141 Windowpane antenna with transparent conductive layer 72 1997
 
Elden, Inc. (1)
* 5649316 In-vehicle antenna 53 1995
 
TYCO ELECTRONICS LOGISTICS AG (1)
* 5999140 Directional antenna assembly 12 1999
 
Harada Kogyo Kabushiki Kaisha (1)
* 5061939 Flat-plate antenna for use in mobile communications 46 1990
 
TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH (1)
* 6029105 Method and apparatus for detecting and monitoring a partial space 45 1998
 
AUTOMOTIVE SYSTEMS LABORATORY, INC. (2)
* 5871232 Occupant position sensing system 93 1997
* 5964478 Electric field sensing air bag danger zone sensor 53 1997
 
KEY SAFETY SYSTEMS, INC. (1)
* 5954360 Vehicle occupant sensing apparatus and method 48 1997
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
AMERICAN VEHICULAR SCIENCES LLC (1)
7734061 Optical occupant sensing techniques 14 2008
 
TK HOLDINGS INC. (1)
6825765 Occupant detection system 39 2002
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 2005/0285,736 System and method for recognition of seat occupancy in a vehicle 2 2005
 
FORD GLOBAL TECHNOLOGIES, INC. (1)
* 6519519 Passive countermeasure methods 27 2002
 
IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. (2)
7656169 Capacitive occupant detection system 8 2007
* 2008/0186,034 Capacitive occupant detection system 6 2007
 
AUTOMOTIVE SYSTEMS LABORATORY, INC. (3)
6577023 Occupant detection system 30 1999
* 2003/0083,795 OCCUPANT DETECTION SYSTEM 0 2002
7098674 Occupant sensor 19 2003
* Cited By Examiner