GB9409986D0 - Signal transmission system - Google Patents

Signal transmission system

Info

Publication number
GB9409986D0
GB9409986D0 GB9409986A GB9409986A GB9409986D0 GB 9409986 D0 GB9409986 D0 GB 9409986D0 GB 9409986 A GB9409986 A GB 9409986A GB 9409986 A GB9409986 A GB 9409986A GB 9409986 D0 GB9409986 D0 GB 9409986D0
Authority
GB
United Kingdom
Prior art keywords
signal transmission
transmission system
signal
transmission
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.)
Granted
Application number
GB9409986A
Other versions
GB2290435A (en
GB2290435B (en
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.)
APPLEQUAY Ltd
Original Assignee
APPLEQUAY 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 APPLEQUAY Ltd filed Critical APPLEQUAY Ltd
Priority to GB9409986A priority Critical patent/GB2290435B/en
Publication of GB9409986D0 publication Critical patent/GB9409986D0/en
Publication of GB2290435A publication Critical patent/GB2290435A/en
Application granted granted Critical
Publication of GB2290435B publication Critical patent/GB2290435B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1003—Alarm systems characterised by arm or disarm features
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00579—Power supply for the keyless data carrier
    • G07C2009/00587—Power supply for the keyless data carrier by battery
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00761—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00968—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys shape of the data carrier
    • G07C2009/00984—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys shape of the data carrier fob
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/08—With time considerations, e.g. temporary activation, valid time window or time limitations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/73—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for taking measurements, e.g. using sensing coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
GB9409986A 1994-05-18 1994-05-18 Signal transmission system Expired - Fee Related GB2290435B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9409986A GB2290435B (en) 1994-05-18 1994-05-18 Signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9409986A GB2290435B (en) 1994-05-18 1994-05-18 Signal transmission system

Publications (3)

Publication Number Publication Date
GB9409986D0 true GB9409986D0 (en) 1994-07-06
GB2290435A GB2290435A (en) 1995-12-20
GB2290435B GB2290435B (en) 1998-09-09

Family

ID=10755366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9409986A Expired - Fee Related GB2290435B (en) 1994-05-18 1994-05-18 Signal transmission system

Country Status (1)

Country Link
GB (1) GB2290435B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790160A3 (en) * 1996-02-17 1998-06-10 Rover Group Limited A vehicle security system
US5883443A (en) * 1997-06-27 1999-03-16 Ut Automotive Dearborn, Inc. Countermeasure method and system for securing a remote keyless entry system
EP1045947B1 (en) * 1998-09-14 2005-01-26 Koninklijke Philips Electronics N.V. Electronic communications system
US6172431B1 (en) 1999-05-18 2001-01-09 Ewen Honeyman Vehicle entry transmitter with conformable switch tip

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1332794A (en) * 1970-06-09 1973-10-03 Town R Electrical arrangements for releasing latches
GB1402708A (en) * 1971-10-14 1975-08-13 Clarke Instr Ltd Locking system
US4011551A (en) * 1976-02-23 1977-03-08 Acurex Corporation Multiple data channel wireless data coupling system for transmitting measured data from a plurality of rotating sources
US4518958A (en) * 1982-02-02 1985-05-21 E. I. Du Pont De Nemours And Company Capacitively coupled machine tool safety having a self-test network
DE3336717A1 (en) * 1983-10-08 1985-04-25 Dai Nippon Printing Co., Ltd., Tokio/Tokyo METHOD AND DEVICE FOR CONTACTLESS, ELECTROMAGNETIC TRANSFERRING OF CONTROL COMMANDS AND DATA
US4628400A (en) * 1984-02-03 1986-12-09 Techne Electronics Ltd. Electronic keyed lock
WO1993002897A1 (en) * 1991-07-30 1993-02-18 General Motors-Holden's Automotive Limited Vehicle security system
GB9203693D0 (en) * 1992-02-20 1992-04-08 Westland Aerostructures Ltd Pressure measurement systems

Also Published As

Publication number Publication date
GB2290435A (en) 1995-12-20
GB2290435B (en) 1998-09-09

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Legal Events

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

Effective date: 20000518