Passenger detection system

Details Passenger detection system Passenger detection system

1998-08-31

2000-12-12

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

280735, B60R 2100

Patent

active

061610704

ABSTRACT:
A passenger detection system including a single antenna electrode mounted on a surface of a passenger seat in an automobile. An oscillator generates an AC current having a predetermined voltage amplitude that is transmitted to the antenna electrode to produce a minute electric field around the antenna electrode. An amplitude control circuit is used to control the voltage amplitude of the output signal from the oscillator. The electrical characteristics of an object on the passenger seat alter the current and phase of the signal in the antenna electrode. A current detection circuit detects the amount of current flowing from the oscillator to the antenna electrode. In addition, a phase differential detection circuit detects a phase differential between the output signal from the oscillator and the signal on the antenna electrode. A control circuit detects the presence or absence of a passenger seated in the seat based on a current signal output from the current detection circuit and a phase differential signal output from the phase differential detection circuit. A control unit including the oscillator, the amplitude control circuit, the current detection circuit, the phase differential detection circuit and the control circuit, is contained in a single housing that is mounted under the passenger seat.

REFERENCES:
patent: 3219925 (1965-11-01), Borley et al.
patent: 3732538 (1973-05-01), Gillund et al.
patent: 3740567 (1973-06-01), Atkins
patent: 3781672 (1973-12-01), Maltby et al.
patent: 3843924 (1974-10-01), Wahlgren
patent: 3863209 (1975-01-01), Hollins
patent: 4136291 (1979-01-01), Waldron
patent: 4208695 (1980-06-01), Noda et al.
patent: 4305074 (1981-12-01), Barzana et al.
patent: 4614937 (1986-09-01), Poujois
patent: 4621258 (1986-11-01), Campman
patent: 4688141 (1987-08-01), Bernard et al.
patent: 4700973 (1987-10-01), Gademann et al.
patent: 4796013 (1989-01-01), Yasuda et al.
patent: 4885566 (1989-12-01), Aoki et al.
patent: 4887024 (1989-12-01), Sugiyama et al.
patent: 4958129 (1990-09-01), Poduje et al.
patent: 4972154 (1990-11-01), Bechtel et al.
patent: 4980519 (1990-12-01), Mathews
patent: 5002308 (1991-03-01), Lenzen et al.
patent: 5071160 (1991-12-01), White et al.
patent: 5074583 (1991-12-01), Fujita et al.
patent: 5087825 (1992-02-01), Ingraham
patent: 5130672 (1992-07-01), Watkiss et al.
patent: 5134379 (1992-07-01), Maher et al.
patent: 5161820 (1992-11-01), Vollmer
patent: 5166679 (1992-11-01), Vranish et al.
patent: 5189417 (1993-02-01), Caldwell et al.
patent: 5214388 (1993-05-01), Vranish et al.
patent: 5225959 (1993-07-01), Stearns
patent: 5232243 (1993-08-01), Blackburn et al.
patent: 5247261 (1993-09-01), Gershenfeld
patent: 5247281 (1993-09-01), Facon et al.
patent: 5305017 (1994-04-01), Gerpheide
patent: 5330226 (1994-07-01), Gentry et al.
patent: 5366241 (1994-11-01), Kithil
patent: 5400487 (1995-03-01), Gioutsos et al.
patent: 5404128 (1995-04-01), Ogino et al.
patent: 5410297 (1995-04-01), Joseph et al.
patent: 5413378 (1995-05-01), Steffens, Jr. et al.
patent: 5431438 (1995-07-01), Manabe
patent: 5432671 (1995-07-01), Allavena
patent: 5439249 (1995-08-01), Steffen, Jr. et al.
patent: 5442347 (1995-08-01), Vranish
patent: 5446661 (1995-08-01), Gioutsos et al.
patent: 5463388 (1995-10-01), Boie et al.
patent: 5467022 (1995-11-01), Aoki et al.
patent: 5482314 (1996-01-01), Corrado et al.
patent: 5494311 (1996-02-01), Blackburn et al.
patent: 5515933 (1996-05-01), Meyer et al.
patent: 5525843 (1996-06-01), Howing
patent: 5554973 (1996-09-01), Kawashima et al.
patent: 5602734 (1997-02-01), Kithil
patent: 5605348 (1997-02-01), Blackburn et al.
patent: 5618056 (1997-04-01), Schoos et al.
Magid, L. M. Electromagnetic Fields, Energy and Waves (1972), p. 26, published in US.
Paradiso, J. and N. Gershenfeld. "Musical Applications of Electric Field Sensing" (Oct. 1995) to be submitted to Computer Music Journal, pp. 1-25, published in US.
Zimmerman, T. G. et al. "Applying Electric Field Sensing to Human-Computer Interfaces" (Oct. 6, 1994), 8 pages, published in US.

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