US3740567A - High-discrimination antenna array for capacitance-responsive circuits - Google Patents

High-discrimination antenna array for capacitance-responsive circuits Download PDF

Info

Publication number
US3740567A
US3740567A US3740567DA US3740567A US 3740567 A US3740567 A US 3740567A US 3740567D A US3740567D A US 3740567DA US 3740567 A US3740567 A US 3740567A
Authority
US
United States
Prior art keywords
capacitance
electrically conductive
seat
coupling
element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
C Atkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Industries LLC
Original Assignee
Wagner Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wagner Electric Corp filed Critical Wagner Electric Corp
Priority to US24579972A priority Critical
Application granted granted Critical
Publication of US3740567A publication Critical patent/US3740567A/en
Assigned to STUDEBAKER-WORTHINGTON, INC. reassignment STUDEBAKER-WORTHINGTON, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WAGNER ELECTRIC CORPORATION
Assigned to EDISON INTERNATONAL, INC. reassignment EDISON INTERNATONAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: STUDEBAKER-WORTHINGTON, INC., A CORP. OF DE
Assigned to COOPER INDUSTRIES, INC., 1001 FANNIN, HOUSTON, TEXAS 77002, A CORP. OF reassignment COOPER INDUSTRIES, INC., 1001 FANNIN, HOUSTON, TEXAS 77002, A CORP. OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EDISON INTERNATIONAL, INC., A CORP. OF DE.
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002Passenger detection systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512Passenger detection systems
    • B60R21/0153Passenger detection systems using field detection presence sensors
    • B60R21/01532Passenger detection systems using field detection presence sensors using electric or capacitive field sensors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/48Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • B60R2022/4808Sensing means arrangements therefor
    • B60R2022/4858Sensing means arrangements therefor for sensing pressure on seat

Abstract

A multi-element antenna array for use with capacitanceresponsive circuits to enable discrimination between human occupants and animals or packages resting on an automobile seat.

Description

United States Patent [1 1 Atkins HIGH-DISCRIMINATION ANTENNA ARRAY FOR CAPACITANCE-RESPONSIVE CIRCUITS [75] Inventor: Carl E. Atkins, Montclair, NJ.

[73] Assignee: Wagner Electric Corporation,

Newark, NJ.

[22] Filed: Apr. 20, 1972 [21] Appl. No.: 245,799

[52] US. Cl. 307/10 SB, 340/278, 340/258 C [51] Int. Cl 02g 3/00 [58] Field of Search 307/10 R, 10 SB;

317/246; ZOO/DIG. 1; 340/278, 258 C [56] References Cited I UNITED STATES PATENTS 3,439,358 4/1969 Salmons 340/278 UX June 19, 1973 3,449,714 6/1969 Farley 307/10 SB 3,177,967 4/1965 Wilson v H 307/10 S11 3,194,975 7/1965 Diamond .1 200/D1(1. 1

Primary Examiner-Robert K. Schaefer Assistant Examin erM. Ginsburg Attorn ey-william D. Lucas [57] ABSTRACT A multi-element antenna array for use with capacitance-responsive circuits to enable discrimination between human occupants and animals or packages resting on an automobile seat.

10 Claims, 1 Drawing Figure HIGH-DISCRIMINATION ANTENNA ARRAY FOR CAPACITANCE-RESPONSIVE CIRCUITS CROSS-REFERENCES TO RELATED APPLICATIONS The present invention may be advantageously employed with the circuits disclosed in copending U. S. Pat. application Ser. No. 263,182 entitled CAPACI- TANCE-RESPONSIVE CONTROL CIRCUIT filed on June 15, 1972 in the name of Carl E. Atkins, and in copending U. S. Pat. application Ser. No. 280,219 entitled CAPACITANCE-RESPONSIVE CONTROL CIR- CUIT filed on Aug. 14, 1972 in the name ofCarl E. Atkins.

BACKGROUND OF THE INVENTION As a safety measure, it has been found desirable to incorporate in automotive vehicles a system which will give a warning and/or prevent operation of the vehicle if one or more of the human occupants has not fastened his seat belt after entering the vehicle. However, priorart systems have encountered the problem of discriminating between packages or animals resting on a seat and a human occupant, who may range from a small child to a full-grown adult. Systems employing a pressure-sensitive switchvplaced under the seat are incapable of such discrimination, since those switches are actuated by weight alone. A large package or a large dog may weigh as much as a small child, and could therefore actuate the system when it should not be actuated.

SUMMARY OF THE INVENTION The present invention is embodied in and carried out by a multi-element antenna array for use in conjunction with a capacitance-responsive system to discriminate between humans and animals or inanimate objects which may occupy a seat as in, for example, an automobile.

BRIEF DESCRIPTION OF THE DRAWING The present invention will be better understood when the written description thereof is read with reference to the accompanying drawing, which illustrates applicants novel antenna array installed in a seat, along with the coupling circuitry connecting the array to the associated capacitance-responsive circuit.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawing, a seat such as may be found in an automotive vehicle is shown as the environment of use of applicants multi-element antenna array. A first electrically-conductive element 12 in the form of a plate or a thin, flexible foil or coating is disposed on or near a surface of the back-rest portion of the seat, and is coupled to the associated capacitanceresponsive circuit by a capacitance 14 which may be fixed, as shown, or variable. A second electrically conductive element 16, also in the form ofa plate or a thin, flexible foil or coating, is disposed on a surface of the fundament-supporting portion of the seat 10, and is coupled to the associated capacitance-responsive circuit by a capacitance 18 which also may be fixed, as shown, or variable. A third electrically conductive element 20 in the form of a wire or a flexible rod is disposed along at least the forward edge of the fundamentsupporting portion of the seat 10, and is coupled to the associated capacitance-responsive circuit by a resistance 22, which may be fixed, as shown, or variable.

By employing a multi-element array of the type just described, it is possible to discriminate between human seat occupants and various animals or objects which may rest on the seat. This result is achieved by virtue of the fact that only a human occupant will capacitively couple to all three antenna elements l2, l6 and 20 simultaneously and to the degree required to cuase the capacitance-responsive circuit to alter its output. If an object is placed on the seat 10, it may closely couple to element 16, or to elements 12 and 16, depending on its size and orientation, but it will not closely couple to all three elements simultaneously. Similarly, if an animal such as a dog or a cat is occupying the seat 10, it may closely couple only to element 16, or possibly to elements l2 and 16, but again, it will not closely couple to all three elements. Also, the degree of capacitive coupling by an animal or an object to any'element, particularly element 20, is not likely to be as close as the coupling effected by a human occupant. Thus, the coupling by animals or objects to specific elements of the antenna array may be less close than by humans, but still effective, or not close at all and therefore ineffective. The cumulative effect of such reduced close coupling and ineffective coupling is to leave the output of the capacitance-responsive circuit unaltered. Consequently, it will be appreciated that the high degree of discrimination achieved by applicants antenna array is a function of both l the inability of animals or objects to closely couple to all three elements simultaneously and (2) the inability of animals or objects to couple as closely as a human occupant to those elements to which effective coupling is made.

The circuitry interconnecting the various antenna elements to the capacitance-responsive circuit is designed to alter the sensitivity of each element with respect to the other elements. For example, in the preferred embodiment shown in the drawing, the area elements l2 and 16 are de-sensitized to a degree by their respective capacitors 14 and 18. On the other hand, the linear element 20 is made relatively more sensitive in terms of its effect on the capacitance-responsive circuit by its connection thereto through resistance 22. Since element 20 will most probably be effectively coupled only by human seat occupants, it is desirable that coupling with this element have a greater effect on the capacitance-responsive circuit than would coupling with other elements 12 and 16. Resistor 22, which is optionally included, is of a relatively low value, e.g., a few hundred ohms. It may be eliminated and element 20 may be connected directly to the capacitanceresponsive circuit. Similarly, elements 12 and 16 may be directly coupled to the capacitance-responsive circuit, with the weighted effect of coupling with these elements being controlled by varying the area of the elements. Alternatively, if in certain applications it is desired to make either elements 12 or 16 more sensitive, the associated coupling capacitance may be either reduced in value, or eliminated, or replaced by a resistance.

The antenna array disclosed herein may be employed with a wide variety of capacitance-responsive circuits which are known or may become known in the art. For example, the capacitance formed by the antenna array, or by the antenna array in combination with its coupling circuitry, may be the only capacitive element in a circuit, or it may be connected in series or in parallel with one or more other capacitances, which may be fixed or variable.

The advantages of the present invention, as well as certain changes and modifications of the disclosed embodiment thereof, will be readily apparent to those skilled in the art. It is the applicants intention to cover all those changes and modifications which could be made to the embodiment of the invention herein chosen for the purposes of the disclosure without departing from the spirit and scope of the invention.

What is claimed is:

1. In a system including capacitance-responsive circuit, the improvement comprising: multi-element antenna means coupled to said capacitance-responsive circuit to enable discrimination by said capitanceresponsive circuit between (a) humans and (b) animals or objects the size or shape of which is substantially different from humans by the degree of capacitive coupling to each element of said antenna means when positioned in the vicinity of said antenna means.

2. The improvement according to claim 1 wherein said multi-element antenna means comprises:

1. a first electrically conductive element disposed over a first predetermined area;

2. a second electrically conductive element disposed over a second predetermined area; and

3. a third electrically conductive element disposed along a predetermined line.-

3. The improvement according to claim 2 wherein said first electrically conductive element is disposed in the region of the back-rest portion of a seat, said second electrically conductive element is disposed in the region of the fundament-supporting portion of said seat, and said third electrically conductive element is disposed'along at least a segment of the forward edge of the fundament-supporting portion of said seat.

4. The improvement according to claim 2 further comprising first, second and third coupling circuit means associated with said first, second and third electrically conductive elements, respectively, each coupling circuit meansbeing operative to modify the effect upon the capacitance-responsive circuit of capacitive coupling by humans, animals or objects to the elements associated with said coupling circuit means.

I 5'. The improvement according to claim 4 wherein said first coupling circuit means comprises a first capacitance, said second coupling circuit means comprises a second capacitance, and said third coupling circuit means comprises a resistance.

6. In a system including a seat having a back-rest portion and a fundament-supporting portion and a capacitance-responsive circuit, the improvement comprising: multi-element antenna means disposed in predetermined regions of said back-rest and fundamentsupporting portions of said seat and coupled to said capacitance-responsive circuit to enable discrimination by said capacitance-responsive circuit between (a) humans and (b) animals or objects the size or shape of which is substantially different from humans by the degree of capacitive coupling to each element of said antenna means when occupying said seat.

7. The improvement according to claim 6 wherein said multi-element antenna means comprises:

1. a first electrically conductive element disposed in the region of said back-rest portion of said seat;

2. a second electrically conductive element disposed in the region of said fundament-supporting portion of said seat; and

3. a third electrically conductive element disposed along at least a segment of the forward edge of said fundament-supporting portion of said seat.

8. The improvement according to claim 7 wherein said first electrically conductive element is disposed over a first predetermined area, said second electrically conductive element is disposed over a second predetermined area, and said third electrically conductive element is disposed along a'predetermined line.

9. The improvement according to claim 7 further comprising first, second and third, coupling circuit means associated with said first, second and third electrically conductive elements, respectively, each coupling circuit means being operative to modify the effect upon the capacitance-responsive circuit of capacitive coupling by humans, animals and objects to the elements associated with said coupling circuit means.

10. The improvement according to claim 9 wherein said first coupling circuit means comprises a first capacitance, said second coupling circuit means comprises a second capacitance, and said third coupling circuit means comprises a resistance.

Claims (14)

1. In a system including capacitance-responsive circuit, the improvement comprising: multi-element antenna means coupled to said capacitance-responsive circuit to enable discrimination by said capitance-responsive circuit between (a) humans and (b) animals or objects the size or shape of which is substantially different from humans by the degree of capacitive coupling to each element of said antenna means when positioned in the vicinity of said antenna means.
2. The improvement according to claim 1 wherein said multi-element antenna means comprises:
2. a second electrically conductive element disposed over a second predetermined area; and
2. a second electrically conductive element disposed in the region of said fundament-supporting portion of said seat; and
3. a third electrically conductive element disposed along a predetermined line.
3. a third electrically conductive element disposed along at least a segment of the forward edge of said fundament-supporting portion of said seat.
3. The improvement according to claim 2 wherein said first electrically conductive element is disposed in the region of the back-rest portion of a seat, said second electrically conductive element is disposed in the region of the fundament-supporting portion of said seat, and said third electrically conductive element is disposed along at least a segment of the forward edge of the fundament-supporting portion of said seat.
4. The improvement according to claim 2 further comprising first, second and third coupling circuit means associated with said first, second and third electrically conductive elements, respectively, each coupling circuit means being operative to modify the effect upon the capacitance-responsive circuit of capacitive coupling by humans, animals or objects to the elements associated with said coupling circuit means.
5. The improvement according to claim 4 wherein said first coupling circuit means comprises a first capacitance, said second coupling circuit means comprises a second capacitance, and said third coupling circuit means comprises a resistance.
6. In a system including a seat having a back-rest portion and a fundament-supporting portion and a capacitance-responsive circuit, the improvement comprising: multi-element antenna means disposed in predetermined regions of said back-rest and fundament-supporting portions of said seat and coupled to said capacitance-responsive circuit to enable discrimination by said capacitance-responsive circuit between (a) humans and (b) animals or objects the size or shape of which is substantially different from humans by the degree of capacitive coupling to each element of said antenna means when occupying said seat.
7. The improvement according to claim 6 wherein said multi-element antenna means comprises:
8. The improvement according to claim 7 wherein said first electrically conductive element is disposed over a first predetermined area, said second electrically conductive element is disposed over a second predetermined area, and said third electrically conductive element is disposed along a predetermined line.
9. The improvement according to claim 7 further comprising first, second and third coupling circuit means associated with said first, second and third electrically conductive elements, respectively, each coupling circuit means being operative to modify the effect upon the capacitance-responsive circuit of capacitive coupling by humans, animals and objects to the elements associated with said coupling circuit means.
10. The improvement according to claim 9 wherein said first coupling circuit means comprises a first capacitance, said second coupling circuit means comprises a second capacitance, and said third coupling circuit means comprises a resistance.
US3740567D 1972-04-20 1972-04-20 High-discrimination antenna array for capacitance-responsive circuits Expired - Lifetime US3740567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US24579972A true 1972-04-20 1972-04-20

Publications (1)

Publication Number Publication Date
US3740567A true US3740567A (en) 1973-06-19

Family

ID=22928127

Family Applications (1)

Application Number Title Priority Date Filing Date
US3740567D Expired - Lifetime US3740567A (en) 1972-04-20 1972-04-20 High-discrimination antenna array for capacitance-responsive circuits

Country Status (1)

Country Link
US (1) US3740567A (en)

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864668A (en) * 1973-01-31 1975-02-04 Amp Inc Seat belt warning and ignition interlock system
US3874474A (en) * 1973-11-12 1975-04-01 Lectron Products Method and apparatus for detecting the utilization of a vehicle safety belt
US4021679A (en) * 1975-10-22 1977-05-03 Fred Bolle Method and apparatus for automatic switching
US4063777A (en) * 1975-04-19 1977-12-20 Takata Kojyo Co., Ltd. Shoulder safety belt retractor
US4914421A (en) * 1988-03-02 1990-04-03 Staar S.A. Detector for disc records
US5525843A (en) * 1994-02-14 1996-06-11 Ab Volvo Seat occupant detection system
WO1997030864A1 (en) * 1996-02-23 1997-08-28 Nec Technologies, Inc. Vehicle passenger sensing system and method
WO1997035738A1 (en) * 1996-03-25 1997-10-02 Advanced Safety Concepts, Inc. Motor vehicle occupant sensing systems
US5724024A (en) * 1993-06-22 1998-03-03 Vos Verkehrs-Optimierungs-Systems Gmbh & Co. Device for detecting the presence of persons on seats
US5760688A (en) * 1995-05-25 1998-06-02 Omron Corporation Body sensing device
US5844486A (en) * 1997-01-02 1998-12-01 Advanced Safety Concepts, Inc. Integral capacitive sensor array
US5871232A (en) * 1997-01-17 1999-02-16 Automotive Systems, Laboratory, Inc. Occupant position sensing system
US5964478A (en) * 1997-03-07 1999-10-12 Automotive Systems Laboratory, Inc Electric field sensing air bag danger zone sensor
WO1999065736A1 (en) * 1998-06-16 1999-12-23 Lear Automotive Dearborn, Inc. Integrated antenna and vehicle trim component
US6161070A (en) * 1996-02-23 2000-12-12 Nec Home Electronics, Inc. Passenger detection system
US6158768A (en) * 1998-02-20 2000-12-12 Trw Vehicle Safety Systems Inc. /Trw Inc. Apparatus and method for discerning certain occupant characteristics using a plurality of capacitive sensors
WO2001013462A1 (en) * 1999-08-13 2001-02-22 Lear Corporation Integrated antenna and trim component for an automotive vehicle
WO2001015111A1 (en) * 1999-08-26 2001-03-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6220627B1 (en) 1998-04-20 2001-04-24 Automotive Systems Lab Occupant detection system
US6275146B1 (en) 1996-04-23 2001-08-14 Philip W. Kithil Vehicle occupant sensing
US6283504B1 (en) 1998-12-30 2001-09-04 Automotive Systems Laboratory, Inc. Occupant sensor
US6290255B1 (en) 1997-03-07 2001-09-18 Automotive Systems Laboratory, Inc. Occupant detection system
US6302438B1 (en) * 1998-04-21 2001-10-16 Automotive Systems Laboratory, Inc. Occupant detection system
JP2001287619A (en) * 2000-03-03 2001-10-16 Bayerische Motoren Werke Ag Method of detecting capacitive object in vehicle
JP2001296370A (en) * 2000-03-03 2001-10-26 Bayerische Motoren Werke Ag Method for detecting capacitive object of vehicle
US20010045733A1 (en) * 2000-05-26 2001-11-29 Stanley James Gregory Occupant sensor
US6348862B1 (en) 1999-03-05 2002-02-19 Automotive Systems Laboratory, Inc. Proximity sensor
US6378900B1 (en) 1999-05-11 2002-04-30 Automotive Systems Laboratory, Inc. Occupant detection system
US6392542B1 (en) 1999-07-12 2002-05-21 Automotive Systems Laboratory, Inc. Occupant sensor
US6445294B1 (en) 1999-07-15 2002-09-03 Automotive Systems Laboratory, Inc. Proximity sensor
US20030083795A1 (en) * 2001-10-31 2003-05-01 Automotive Systems Laboratory, Inc. Occupant detection system
US20030085799A1 (en) * 2001-11-07 2003-05-08 Lear Corporation Vehicle seating system capable of receiving and transmitting radio frequency signals
US20030122669A1 (en) * 2001-12-13 2003-07-03 Vladimir Filippov Occupant presence detection device
US20030173120A1 (en) * 2000-09-19 2003-09-18 Desrochers Kristopher L. Vehicle occupant weight estimation apparatus
US6693442B2 (en) 2000-09-29 2004-02-17 Intelligent Mechantronic Systems, Inc. Vehicle occupant proximity sensor
US20040119484A1 (en) * 2002-08-16 2004-06-24 Basir Otman A. Capacitance based human touch activation and switching device
US20040189450A1 (en) * 2003-03-24 2004-09-30 Pratt Wyatt Barton Vehicle truck emergency release
US6825765B2 (en) 1998-12-30 2004-11-30 Automotive Systems Laboratory, Inc. Occupant detection system
US20080094213A1 (en) * 2006-10-18 2008-04-24 Elesys North America Inc. Sensor and circuit configuration for occupant detection
US20090292423A1 (en) * 1993-11-23 2009-11-26 Peter Norton Vehicle occupant presence and position sensing system
EP2839997A1 (en) * 2013-08-19 2015-02-25 Volvo Car Corporation Arrangement for control of vehicle seat belt alert arrangement, a seat, a vehicle, a method and use of the arrangement
US9266454B2 (en) 2013-05-15 2016-02-23 Gentherm Canada Ltd Conductive heater having sensing capabilities
US9701232B2 (en) 2013-10-11 2017-07-11 Gentherm Gmbh Occupancy sensing with heating devices
US9815488B2 (en) 2014-05-13 2017-11-14 Gentherm Gmbh Temperature control device for a steering device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177967A (en) * 1962-09-05 1965-04-13 Louis A Wilson Taxi control systems
US3194975A (en) * 1961-03-30 1965-07-13 Otis Elevator Co Proximity detector circuitry for elevator closures
US3439358A (en) * 1965-11-30 1969-04-15 George Washington Ltd Activity detectors
US3449714A (en) * 1965-05-06 1969-06-10 Elizabeth L Farley Vehicle seatbelt safety system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194975A (en) * 1961-03-30 1965-07-13 Otis Elevator Co Proximity detector circuitry for elevator closures
US3177967A (en) * 1962-09-05 1965-04-13 Louis A Wilson Taxi control systems
US3449714A (en) * 1965-05-06 1969-06-10 Elizabeth L Farley Vehicle seatbelt safety system
US3439358A (en) * 1965-11-30 1969-04-15 George Washington Ltd Activity detectors

Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864668A (en) * 1973-01-31 1975-02-04 Amp Inc Seat belt warning and ignition interlock system
US3874474A (en) * 1973-11-12 1975-04-01 Lectron Products Method and apparatus for detecting the utilization of a vehicle safety belt
US4063777A (en) * 1975-04-19 1977-12-20 Takata Kojyo Co., Ltd. Shoulder safety belt retractor
US4021679A (en) * 1975-10-22 1977-05-03 Fred Bolle Method and apparatus for automatic switching
US4914421A (en) * 1988-03-02 1990-04-03 Staar S.A. Detector for disc records
US5724024A (en) * 1993-06-22 1998-03-03 Vos Verkehrs-Optimierungs-Systems Gmbh & Co. Device for detecting the presence of persons on seats
US20090292423A1 (en) * 1993-11-23 2009-11-26 Peter Norton Vehicle occupant presence and position sensing system
US8285454B2 (en) 1993-11-23 2012-10-09 Peter Norton Vehicle occupant presence and position sensing system
US5525843A (en) * 1994-02-14 1996-06-11 Ab Volvo Seat occupant detection system
US6014602A (en) * 1994-09-23 2000-01-11 Advanced Safety Concepts, Inc. Motor vehicle occupant sensing systems
US5802479A (en) * 1994-09-23 1998-09-01 Advanced Safety Concepts, Inc. Motor vehicle occupant sensing systems
US5760688A (en) * 1995-05-25 1998-06-02 Omron Corporation Body sensing device
US6161070A (en) * 1996-02-23 2000-12-12 Nec Home Electronics, Inc. Passenger detection system
US5948031A (en) * 1996-02-23 1999-09-07 Nec Technologies, Inc. Vehicle passenger sensing system and method
WO1997030864A1 (en) * 1996-02-23 1997-08-28 Nec Technologies, Inc. Vehicle passenger sensing system and method
WO1997035738A1 (en) * 1996-03-25 1997-10-02 Advanced Safety Concepts, Inc. Motor vehicle occupant sensing systems
US6275146B1 (en) 1996-04-23 2001-08-14 Philip W. Kithil Vehicle occupant sensing
US5844486A (en) * 1997-01-02 1998-12-01 Advanced Safety Concepts, Inc. Integral capacitive sensor array
US5871232A (en) * 1997-01-17 1999-02-16 Automotive Systems, Laboratory, Inc. Occupant position sensing system
US5964478A (en) * 1997-03-07 1999-10-12 Automotive Systems Laboratory, Inc Electric field sensing air bag danger zone sensor
US6290255B1 (en) 1997-03-07 2001-09-18 Automotive Systems Laboratory, Inc. Occupant detection system
US6158768A (en) * 1998-02-20 2000-12-12 Trw Vehicle Safety Systems Inc. /Trw Inc. Apparatus and method for discerning certain occupant characteristics using a plurality of capacitive sensors
US6220627B1 (en) 1998-04-20 2001-04-24 Automotive Systems Lab Occupant detection system
US6302438B1 (en) * 1998-04-21 2001-10-16 Automotive Systems Laboratory, Inc. Occupant detection system
US6208305B1 (en) 1998-06-16 2001-03-27 Lear Corporation Integrated antenna and trim component for an automotive vehicle
WO1999065736A1 (en) * 1998-06-16 1999-12-23 Lear Automotive Dearborn, Inc. Integrated antenna and vehicle trim component
US6283504B1 (en) 1998-12-30 2001-09-04 Automotive Systems Laboratory, Inc. Occupant sensor
US6520535B1 (en) 1998-12-30 2003-02-18 Automotive Systems Laboratory, Inc. Occupant detection system
US6517106B1 (en) 1998-12-30 2003-02-11 Automotive Systems Laboratory, Inc. Occupant detection system
US6825765B2 (en) 1998-12-30 2004-11-30 Automotive Systems Laboratory, Inc. Occupant detection system
US6577023B1 (en) 1998-12-30 2003-06-10 Automotive Systems Laboratory, Inc. Occupant detection system
DE19983956B4 (en) * 1998-12-30 2009-11-12 TK Holdings, Inc. (n. d .Ges. d. Staates Delaware), Auburn Hills Occupant sensor
US6563231B1 (en) 1998-12-30 2003-05-13 Automotive Systems Laboratory, Inc. Occupant sensor
US6348862B1 (en) 1999-03-05 2002-02-19 Automotive Systems Laboratory, Inc. Proximity sensor
US6378900B1 (en) 1999-05-11 2002-04-30 Automotive Systems Laboratory, Inc. Occupant detection system
US6392542B1 (en) 1999-07-12 2002-05-21 Automotive Systems Laboratory, Inc. Occupant sensor
US6445294B1 (en) 1999-07-15 2002-09-03 Automotive Systems Laboratory, Inc. Proximity sensor
WO2001013462A1 (en) * 1999-08-13 2001-02-22 Lear Corporation Integrated antenna and trim component for an automotive vehicle
WO2001015111A1 (en) * 1999-08-26 2001-03-01 Automotive Systems Laboratory, Inc. Magnetic sensor
US6552662B1 (en) * 1999-08-26 2003-04-22 Automotive Systems Laboratory, Inc. Magnetic sensor
EP1129894A3 (en) * 2000-03-03 2003-01-15 Bayerische Motoren Werke Aktiengesellschaft Capacitive object recognition method in vehicles
JP4658352B2 (en) * 2000-03-03 2011-03-23 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフトBayerische Motoren Werke Aktiengesellschaft Method for capacitive object detection in vehicles
EP1129893A3 (en) * 2000-03-03 2003-01-15 Bayerische Motoren Werke Aktiengesellschaft Capacitive object recognition method in vehicles
US6577142B2 (en) 2000-03-03 2003-06-10 Bayerische Motoren Werke Aktiengesellschaft Process for the capacitive object detection in the case of vehicles
JP2001296370A (en) * 2000-03-03 2001-10-26 Bayerische Motoren Werke Ag Method for detecting capacitive object of vehicle
JP4621369B2 (en) * 2000-03-03 2011-01-26 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフトBayerische Motoren Werke Aktiengesellschaft Method for capacitive object detection in vehicles
JP2001287619A (en) * 2000-03-03 2001-10-16 Bayerische Motoren Werke Ag Method of detecting capacitive object in vehicle
US7098674B2 (en) 2000-05-26 2006-08-29 Automotive Systems Laboratory, Inc. Occupant sensor
US20040113634A1 (en) * 2000-05-26 2004-06-17 Automotive Systems Laboratory, Inc. Occupant sensor
US6703845B2 (en) 2000-05-26 2004-03-09 Automotive Systems Laboratory, Inc. Occupant sensor
US20010045733A1 (en) * 2000-05-26 2001-11-29 Stanley James Gregory Occupant sensor
US20030173120A1 (en) * 2000-09-19 2003-09-18 Desrochers Kristopher L. Vehicle occupant weight estimation apparatus
US6989496B2 (en) * 2000-09-19 2006-01-24 Intelligent Mechatronic Systems Inc. Vehicle occupant weight estimation apparatus
US6693442B2 (en) 2000-09-29 2004-02-17 Intelligent Mechantronic Systems, Inc. Vehicle occupant proximity sensor
US20030083795A1 (en) * 2001-10-31 2003-05-01 Automotive Systems Laboratory, Inc. Occupant detection system
US6812900B2 (en) 2001-11-07 2004-11-02 Lear Corporation Vehicle seating system capable of receiving and transmitting radio frequency signals
US20030085799A1 (en) * 2001-11-07 2003-05-08 Lear Corporation Vehicle seating system capable of receiving and transmitting radio frequency signals
US7135983B2 (en) 2001-12-13 2006-11-14 Intelligent Mechatronic Systems Inc. Occupant presence detection device
US20030122669A1 (en) * 2001-12-13 2003-07-03 Vladimir Filippov Occupant presence detection device
US20040119484A1 (en) * 2002-08-16 2004-06-24 Basir Otman A. Capacitance based human touch activation and switching device
US7049943B2 (en) 2003-03-24 2006-05-23 Wyatt Barton Pratt Vehicle trunk safety device
US6825755B2 (en) 2003-03-24 2004-11-30 Wyatt Barton Pratt Vehicle trunk emergency release
US20040189450A1 (en) * 2003-03-24 2004-09-30 Pratt Wyatt Barton Vehicle truck emergency release
US20050068160A1 (en) * 2003-03-24 2005-03-31 Pratt Wyatt Barton Vehicle trunk safety device
US20080094213A1 (en) * 2006-10-18 2008-04-24 Elesys North America Inc. Sensor and circuit configuration for occupant detection
US7598881B2 (en) * 2006-10-18 2009-10-06 Elesys North America, Inc. Sensor and circuit configuration for occupant detection
US9266454B2 (en) 2013-05-15 2016-02-23 Gentherm Canada Ltd Conductive heater having sensing capabilities
US10075999B2 (en) 2013-05-15 2018-09-11 Gentherm Gmbh Conductive heater having sensing capabilities
EP2839997A1 (en) * 2013-08-19 2015-02-25 Volvo Car Corporation Arrangement for control of vehicle seat belt alert arrangement, a seat, a vehicle, a method and use of the arrangement
US10076982B2 (en) 2013-10-11 2018-09-18 Gentherm Gmbh Occupancy sensing with heating devices
US9701232B2 (en) 2013-10-11 2017-07-11 Gentherm Gmbh Occupancy sensing with heating devices
US9815488B2 (en) 2014-05-13 2017-11-14 Gentherm Gmbh Temperature control device for a steering device
US10196079B2 (en) 2014-05-13 2019-02-05 Gentherm Gmbh Temperature control device for a steering device

Similar Documents

Publication Publication Date Title
JP4309259B2 (en) Compressible capacitive sensor for object presence determination
US6553296B2 (en) Vehicular occupant detection arrangements
US7983817B2 (en) Method and arrangement for obtaining information about vehicle occupants
US6255790B1 (en) Vehicle seat with a control device
US6254127B1 (en) Vehicle occupant sensing system including a distance-measuring sensor on an airbag module or steering wheel assembly
US6324453B1 (en) Methods for determining the identification and position of and monitoring objects in a vehicle
US6757602B2 (en) System for determining the occupancy state of a seat in a vehicle and controlling a component based thereon
DE1257218B (en) Electronic control circuit for electrical signals with two oppositely controllable resistors
US7407029B2 (en) Weight measuring systems and methods for vehicles
EP0983162B1 (en) Matting with a heatable wire for a car seat heating system and car seat having such a matting
DE60112594T2 (en) Vehicle occupant proximity sensor
US20030083795A1 (en) Occupant detection system
US5871232A (en) Occupant position sensing system
US20030193013A1 (en) Capacitive type control member
KR0151568B1 (en) Ultrasonic wave reception apparatus and obstacle detection apparatus
ES348682A1 (en) A device connection plane and insulated material without-thetic electrically nonconductive.
US3668627A (en) Air cushion actuation and monitoring circuit
EP1299268B1 (en) Hardware independent mapping of multiple sensor configurations for classification of persons
US4995640A (en) Magnetic sensor actuation system suitable for use in passive seat belt system
DE1956257A1 (en) Upholstery, especially for vehicle seats
EP1301800B1 (en) Occupant sensor
DE1275372B (en) Motor vehicle with existing plastic car body
EP1171329B1 (en) Air bag cover with vehicle operator position sensor and horn switch
CA1305218C (en) Electronic sensing and control circuit
CA2246510C (en) Vehicle passenger sensing system and method

Legal Events

Date Code Title Description
AS Assignment

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WAGNER ELECTRIC CORPORATION;REEL/FRAME:003984/0757

Owner name: STUDEBAKER-WORTHINGTON, INC., ILLINOIS

Effective date: 19801229

AS Assignment

Owner name: COOPER INDUSTRIES, INC., 1001 FANNIN, HOUSTON, TEX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EDISON INTERNATIONAL, INC., A CORP. OF DE.;REEL/FRAME:004475/0382

Effective date: 19851031