GB1376358A - Induction-keyed control circuit with keying network having variable resonant frequency - Google Patents

Induction-keyed control circuit with keying network having variable resonant frequency

Info

Publication number
GB1376358A
GB1376358A GB2235272A GB2235272A GB1376358A GB 1376358 A GB1376358 A GB 1376358A GB 2235272 A GB2235272 A GB 2235272A GB 2235272 A GB2235272 A GB 2235272A GB 1376358 A GB1376358 A GB 1376358A
Authority
GB
United Kingdom
Prior art keywords
capacitor
key
circuit
lock
oscillator
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
Application number
GB2235272A
Other languages
English (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.)
Wagner Electric Corp
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
Publication of GB1376358A publication Critical patent/GB1376358A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Lock And Its Accessories (AREA)
GB2235272A 1971-05-20 1971-05-12 Induction-keyed control circuit with keying network having variable resonant frequency Expired GB1376358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14530871A 1971-05-20 1971-05-20

Publications (1)

Publication Number Publication Date
GB1376358A true GB1376358A (en) 1974-12-04

Family

ID=22512499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2235272A Expired GB1376358A (en) 1971-05-20 1971-05-12 Induction-keyed control circuit with keying network having variable resonant frequency

Country Status (6)

Country Link
JP (1) JPS5618747B1 (enExample)
CA (1) CA967646A (enExample)
DE (1) DE2222237A1 (enExample)
FR (1) FR2138836B2 (enExample)
GB (1) GB1376358A (enExample)
IT (1) IT1045070B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160061371A (ko) * 2013-09-26 2016-05-31 크로다 인터내셔날 피엘씨 공중합체 폴리올

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210018C2 (de) * 1992-03-27 1995-10-19 Balluff Gebhard Feinmech Schweißfester induktiver Näherungsschalter
KR102745977B1 (ko) 2019-09-23 2024-12-23 주식회사 엘지에너지솔루션 돌기 구조가 형성된 홀드다운 브라켓을 포함하는 전지팩

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160061371A (ko) * 2013-09-26 2016-05-31 크로다 인터내셔날 피엘씨 공중합체 폴리올
KR102068207B1 (ko) * 2013-09-26 2020-01-20 크로다 인터내셔날 피엘씨 공중합체 폴리올

Also Published As

Publication number Publication date
DE2222237A1 (de) 1972-11-30
CA967646A (en) 1975-05-13
FR2138836B2 (enExample) 1973-07-13
IT1045070B (it) 1980-05-10
FR2138836A2 (enExample) 1973-01-05
JPS5618747B1 (enExample) 1981-05-01

Similar Documents

Publication Publication Date Title
US5467082A (en) Proximity actuator and reader for an electronic access system
US3068427A (en) Frequency modulator including voltage sensitive capacitors for changing the effective capacitance and inductance of an oscillator circuit
US2511409A (en) Superregenerative circuit
US3299356A (en) Pulsed carrier radio beacon transmitter
KR880700544A (ko) 전자 동조식 fm 수신기
ATE201782T1 (de) Kontaktlose integrierte schaltung mit einer ladungspumpe
GB1477249A (en) Microwave oscillator
AU635534B2 (en) Voltage step up regulator
US3046496A (en) Stabilized frequency modulated oscillator
US3842324A (en) Induction-keyed control circuit with keying network having variable resonant frequency
GB1377830A (en) Electric circuits and radio receivers including such circuits
RU95121474A (ru) Управляемый кварцевый генератор
US3500416A (en) Proximity switching device
US3359558A (en) Receiver arrangement
GB1270564A (en) Controllable electric oscillator
US3049626A (en) Spectrum generator
US3370255A (en) Fm system using crystal oscillator
EP0164994A2 (en) RF oscillator and method of generating RF energy
US3439287A (en) Transistor microwave generator with second harmonic output
US2992328A (en) Crystal controlled high frequency converter
US3434063A (en) Self-quenching negative resistance superregenerative diode detector
JPS6134740Y2 (enExample)
US3421104A (en) Frequency control system with search sweep
JPH046253Y2 (enExample)
GB982165A (en) Improvements in or relating to stabilised frequency oscillator circuit arrangements

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees