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JPS6484175A - Moving body discriminating device - Google Patents

Moving body discriminating device

Info

Publication number
JPS6484175A
JPS6484175A JP24208687A JP24208687A JPS6484175A JP S6484175 A JPS6484175 A JP S6484175A JP 24208687 A JP24208687 A JP 24208687A JP 24208687 A JP24208687 A JP 24208687A JP S6484175 A JPS6484175 A JP S6484175A
Authority
JP
Japan
Prior art keywords
data
fsk
transponder
signal
modulator
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.)
Pending
Application number
JP24208687A
Other languages
Japanese (ja)
Inventor
Takashi Saeki
Takayuki Arai
Haruo Nakano
Toshiro Mishina
Hitoshi Sakakibara
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP24208687A priority Critical patent/JPS6484175A/en
Priority to US07/243,833 priority patent/US4899158A/en
Priority to GB8821598A priority patent/GB2210538B/en
Priority to DE3832409A priority patent/DE3832409A1/en
Priority to FR8812533A priority patent/FR2621134B1/en
Priority to KR1019880012486A priority patent/KR920004754B1/en
Publication of JPS6484175A publication Critical patent/JPS6484175A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radar Systems Or Details Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To simplify the circuit constitution by enabling a transponder to impose phase modulation with data that it has when receiving and sending an unmodulated signal of constant frequency sent out of an interrogator to the transponder. CONSTITUTION:When data is transferred from the interrogator 1 to the transponder 2, the sent data T is frequency modulator 19A and inputted as an FSK signal to an AM modulation part 13. The unmodulated signal from an oscillator 11 is AM-modulated 13 with the FSK signal, received A2 by the transponder 2 through a sending antenna A1, and detected 21 and restored to its original data T by an FSK demodulator 29A. Then when data is sent from the transponder 2 to the interrogator 1, the signal of the oscillator 11 is inputted to a phase modulator 22 through a switch 12, a circulator 14, and transmitting and receiving antennas A3 and A4 and phase-modulated with an FSK signal from an FSK modulator 29B. This phase-modulated data is passed through antennas A4 and A3, the circulator 14, a phase modulator 15 and an amplifier 17, and regenerated as received data R2 by a FSK modulator 19B.
JP24208687A 1987-09-26 1987-09-26 Moving body discriminating device Pending JPS6484175A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP24208687A JPS6484175A (en) 1987-09-26 1987-09-26 Moving body discriminating device
US07/243,833 US4899158A (en) 1987-09-26 1988-09-13 Moving object discriminating system
GB8821598A GB2210538B (en) 1987-09-26 1988-09-15 Moving object discriminating system
DE3832409A DE3832409A1 (en) 1987-09-26 1988-09-23 DISCRIMINATOR ARRANGEMENT FOR MOVING OBJECTS
FR8812533A FR2621134B1 (en) 1987-09-26 1988-09-26 MOBILE OBJECT DISCRIMINATION SYSTEM
KR1019880012486A KR920004754B1 (en) 1987-09-26 1988-09-27 Shifting object discriminating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24208687A JPS6484175A (en) 1987-09-26 1987-09-26 Moving body discriminating device

Publications (1)

Publication Number Publication Date
JPS6484175A true JPS6484175A (en) 1989-03-29

Family

ID=17084085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24208687A Pending JPS6484175A (en) 1987-09-26 1987-09-26 Moving body discriminating device

Country Status (1)

Country Link
JP (1) JPS6484175A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105696A (en) * 2004-10-01 2006-04-20 Shimizu Corp Position detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105696A (en) * 2004-10-01 2006-04-20 Shimizu Corp Position detection system

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