GB2390494B - A monitoring circuit for determining the state of a device, and a current emulating circuit for emulating current drawn by the device - Google Patents

A monitoring circuit for determining the state of a device, and a current emulating circuit for emulating current drawn by the device

Info

Publication number
GB2390494B
GB2390494B GB0314702A GB0314702A GB2390494B GB 2390494 B GB2390494 B GB 2390494B GB 0314702 A GB0314702 A GB 0314702A GB 0314702 A GB0314702 A GB 0314702A GB 2390494 B GB2390494 B GB 2390494B
Authority
GB
United Kingdom
Prior art keywords
emulating
current
circuit
determining
state
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 - Fee Related
Application number
GB0314702A
Other versions
GB2390494A (en
GB0314702D0 (en
Inventor
Patrick Gerard Mcdaid
Paul Michael Connors
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.)
Hi Key Ltd
Original Assignee
Hi Key Ltd
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 Hi Key Ltd filed Critical Hi Key Ltd
Publication of GB0314702D0 publication Critical patent/GB0314702D0/en
Publication of GB2390494A publication Critical patent/GB2390494A/en
Application granted granted Critical
Publication of GB2390494B publication Critical patent/GB2390494B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
    • B60R21/01546—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment using belt buckle sensors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01122—Prevention of malfunction
    • B60R2021/01129—Problems or faults
    • B60R2021/0115—Current leakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • B60R2022/4808—Sensing means arrangements therefor
    • B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB0314702A 2002-06-24 2003-06-24 A monitoring circuit for determining the state of a device, and a current emulating circuit for emulating current drawn by the device Expired - Fee Related GB2390494B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE20020511A IES20020511A2 (en) 2002-06-24 2002-06-24 A monitoring circuit for determining the state of a device, and a current emulating circuit for emulating current drawn by the device

Publications (3)

Publication Number Publication Date
GB0314702D0 GB0314702D0 (en) 2003-07-30
GB2390494A GB2390494A (en) 2004-01-07
GB2390494B true GB2390494B (en) 2006-01-18

Family

ID=27638006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0314702A Expired - Fee Related GB2390494B (en) 2002-06-24 2003-06-24 A monitoring circuit for determining the state of a device, and a current emulating circuit for emulating current drawn by the device

Country Status (2)

Country Link
GB (1) GB2390494B (en)
IE (1) IES20020511A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006248285A (en) * 2005-03-08 2006-09-21 Takata Corp Seat belt device
BRPI0713124A2 (en) * 2006-05-01 2012-04-10 Minda Ind Ltd contactless communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343536A1 (en) * 1988-05-26 1989-11-29 Siemens Aktiengesellschaft Circuit for controlling the power supply of an electrical load, having a device for detecting a short-circuit of the load
GB2321141A (en) * 1997-01-13 1998-07-15 Yazaki Corp Overcurrent breaking circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343536A1 (en) * 1988-05-26 1989-11-29 Siemens Aktiengesellschaft Circuit for controlling the power supply of an electrical load, having a device for detecting a short-circuit of the load
GB2321141A (en) * 1997-01-13 1998-07-15 Yazaki Corp Overcurrent breaking circuit

Also Published As

Publication number Publication date
IE20030465A1 (en) 2003-12-31
IES20020511A2 (en) 2003-05-14
GB2390494A (en) 2004-01-07
GB0314702D0 (en) 2003-07-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090624