JPS4217509Y1 - - Google Patents

Info

Publication number
JPS4217509Y1
JPS4217509Y1 JP6187265U JP6187265U JPS4217509Y1 JP S4217509 Y1 JPS4217509 Y1 JP S4217509Y1 JP 6187265 U JP6187265 U JP 6187265U JP 6187265 U JP6187265 U JP 6187265U JP S4217509 Y1 JPS4217509 Y1 JP S4217509Y1
Authority
JP
Japan
Prior art keywords
aerial
loop
receiving
signal
transmitting
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
JP6187265U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Publication of JPS4217509Y1 publication Critical patent/JPS4217509Y1/ja
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Near-Field Transmission Systems (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Developing Agents For Electrophotography (AREA)
JP6187265U 1964-07-29 1965-07-29 Expired JPS4217509Y1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38588164A 1964-07-29 1964-07-29

Publications (1)

Publication Number Publication Date
JPS4217509Y1 true JPS4217509Y1 (de) 1967-10-09

Family

ID=49883567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6187265U Expired JPS4217509Y1 (de) 1964-07-29 1965-07-29

Country Status (3)

Country Link
JP (1) JPS4217509Y1 (de)
DE (2) DE1927660U (de)
GB (1) GB1091437A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894106A (de) * 1972-03-17 1973-12-04
JPS4959419U (de) * 1972-09-01 1974-05-25
JPS5011610A (de) * 1973-06-01 1975-02-06
JPS6082876A (ja) * 1983-10-13 1985-05-11 Hitachi Cable Ltd 移動体位置検知装置
JPH05283925A (ja) * 1992-04-03 1993-10-29 Yamatake Honeywell Co Ltd 非接触式識別カード用送受信アンテナ

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133660B (en) * 1982-11-09 1986-07-30 Tag Radionics Ltd Transponder detection systems
GB2180123B (en) * 1984-12-21 1989-01-18 Senezco Limited Transponder systems
WO2009136876A1 (en) * 2008-05-06 2009-11-12 Vinko Kunc Arrangement of a transmitting antenna and a receiving antenna
US9997830B2 (en) 2012-05-13 2018-06-12 Amir Keyvan Khandani Antenna system and method for full duplex wireless transmission with channel phase-based encryption
US9008208B2 (en) 2012-05-13 2015-04-14 Amir Keyvan Khandani Wireless transmission with channel state perturbation
US10177896B2 (en) 2013-05-13 2019-01-08 Amir Keyvan Khandani Methods for training of full-duplex wireless systems
US9413516B2 (en) 2013-11-30 2016-08-09 Amir Keyvan Khandani Wireless full-duplex system and method with self-interference sampling
US9236996B2 (en) 2013-11-30 2016-01-12 Amir Keyvan Khandani Wireless full-duplex system and method using sideband test signals
US9820311B2 (en) 2014-01-30 2017-11-14 Amir Keyvan Khandani Adapter and associated method for full-duplex wireless communication
US10778295B2 (en) 2016-05-02 2020-09-15 Amir Keyvan Khandani Instantaneous beamforming exploiting user physical signatures
US10700766B2 (en) 2017-04-19 2020-06-30 Amir Keyvan Khandani Noise cancelling amplify-and-forward (in-band) relay with self-interference cancellation
US11146395B2 (en) 2017-10-04 2021-10-12 Amir Keyvan Khandani Methods for secure authentication
US11012144B2 (en) 2018-01-16 2021-05-18 Amir Keyvan Khandani System and methods for in-band relaying

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894106A (de) * 1972-03-17 1973-12-04
JPS4959419U (de) * 1972-09-01 1974-05-25
JPS5011610A (de) * 1973-06-01 1975-02-06
JPS574551B2 (de) * 1973-06-01 1982-01-26
JPS6082876A (ja) * 1983-10-13 1985-05-11 Hitachi Cable Ltd 移動体位置検知装置
JPH05283925A (ja) * 1992-04-03 1993-10-29 Yamatake Honeywell Co Ltd 非接触式識別カード用送受信アンテナ

Also Published As

Publication number Publication date
GB1091437A (en) 1967-11-15
DE1466099A1 (de) 1970-04-16
DE1927660U (de) 1965-11-25

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