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JPS57106882A - Data transmitting device - Google Patents

Data transmitting device

Info

Publication number
JPS57106882A
JPS57106882A JP18358380A JP18358380A JPS57106882A JP S57106882 A JPS57106882 A JP S57106882A JP 18358380 A JP18358380 A JP 18358380A JP 18358380 A JP18358380 A JP 18358380A JP S57106882 A JPS57106882 A JP S57106882A
Authority
JP
Japan
Prior art keywords
wave
transmitting
responsor
fsk
clock signal
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
JP18358380A
Other languages
Japanese (ja)
Other versions
JPS5931018B2 (en
Inventor
Katsumi Sase
Shoji Mutsushima
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Mitsubishi Electric Corp
Nippon Kokuyu Tetsudo
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Mitsubishi Electric Corp
Nippon Kokuyu Tetsudo
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 JAPANESE NATIONAL RAILWAYS<JNR>, Japan National Railways, Mitsubishi Electric Corp, Nippon Kokuyu Tetsudo filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP18358380A priority Critical patent/JPS5931018B2/en
Publication of JPS57106882A publication Critical patent/JPS57106882A/en
Publication of JPS5931018B2 publication Critical patent/JPS5931018B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To transmit data stably and precisely by modulating the transmitting wave of an interrogator so as to form a sine wave with constant frequency, demodulating the sine wave and generating a clock signal to process the wave digitally. CONSTITUTION:A microwave generated from a transmitting part 1 with a modulating function is irradiated to a responsor 102 through a transmitting antenna 2, penetrated continuously into a receiving antenna 11 and supplied to each part of the responsor 102 as DC power by a recrifier 12. A code sending circuit 13 reads out the stored contents from a memory unit 14 and a frequency switching circuit 16 FSK-modulates the modulation frequency corresponding to the series code. The clock of logical operation can be obtained from a clock signal generator 20. The FSK modulated signal is transmitted from a transmitting antenna 18 through a modulated wave oscillator 15 and a modulator 19.
JP18358380A 1980-12-24 1980-12-24 information transmission device Expired JPS5931018B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18358380A JPS5931018B2 (en) 1980-12-24 1980-12-24 information transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18358380A JPS5931018B2 (en) 1980-12-24 1980-12-24 information transmission device

Publications (2)

Publication Number Publication Date
JPS57106882A true JPS57106882A (en) 1982-07-02
JPS5931018B2 JPS5931018B2 (en) 1984-07-30

Family

ID=16138350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18358380A Expired JPS5931018B2 (en) 1980-12-24 1980-12-24 information transmission device

Country Status (1)

Country Link
JP (1) JPS5931018B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136084A (en) * 1987-11-20 1989-05-29 Yamatake Honeywell Co Ltd Spatial signal transmitter
JPH01142481A (en) * 1987-11-30 1989-06-05 Yamatake Honeywell Co Ltd Spatial signal transmission equipment
JP2020041923A (en) * 2018-09-11 2020-03-19 株式会社デンソー Vehicle passive entry device and distance measurement method for vehicle passive entry device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136084A (en) * 1987-11-20 1989-05-29 Yamatake Honeywell Co Ltd Spatial signal transmitter
JPH01142481A (en) * 1987-11-30 1989-06-05 Yamatake Honeywell Co Ltd Spatial signal transmission equipment
JP2020041923A (en) * 2018-09-11 2020-03-19 株式会社デンソー Vehicle passive entry device and distance measurement method for vehicle passive entry device
WO2020054346A1 (en) * 2018-09-11 2020-03-19 株式会社デンソー Vehicle passive entry device, and ranging method for vehicle passive entry device

Also Published As

Publication number Publication date
JPS5931018B2 (en) 1984-07-30

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