JPS6437128A - Microwave data transmission equipment - Google Patents

Microwave data transmission equipment

Info

Publication number
JPS6437128A
JPS6437128A JP62193150A JP19315087A JPS6437128A JP S6437128 A JPS6437128 A JP S6437128A JP 62193150 A JP62193150 A JP 62193150A JP 19315087 A JP19315087 A JP 19315087A JP S6437128 A JPS6437128 A JP S6437128A
Authority
JP
Japan
Prior art keywords
interrogator
frequency
responder
mobile body
data information
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
JP62193150A
Other languages
Japanese (ja)
Other versions
JP2542391B2 (en
Inventor
Tomozo Ota
Hiroshi Nakano
Kazutada Azuma
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP62193150A priority Critical patent/JP2542391B2/en
Publication of JPS6437128A publication Critical patent/JPS6437128A/en
Application granted granted Critical
Publication of JP2542391B2 publication Critical patent/JP2542391B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Radar Systems Or Details Thereof (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To enable a mobile body discriminating device to read out information peculiar to a mobile body by an interrogator and to rewrite information in a responder of the mobile body by transmitting two different frequencies in time series. CONSTITUTION:When a signal processor 18 receives a control signal having a frequency f1 from an interrogator 101 through a demodulator 16, a CPU in the signal processor 18 modulates a frequency f2 by data information stored in a RAM and transmits it to the interrogator 11. The interrogator 11 receives this frequency by a transmission/reception antenna 13 and detects it to take out data information. In case of the change of data information held in a responder 201, the interrogator 101 transmits the control modulated signal having the frequency f1 including write and write data. The responder 201 demodulates it by the demodulator 16 and rewrites the contents of the RAM in accordance with the write instruction signal.
JP62193150A 1987-07-31 1987-07-31 Microwave data transmission device Expired - Fee Related JP2542391B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62193150A JP2542391B2 (en) 1987-07-31 1987-07-31 Microwave data transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62193150A JP2542391B2 (en) 1987-07-31 1987-07-31 Microwave data transmission device

Publications (2)

Publication Number Publication Date
JPS6437128A true JPS6437128A (en) 1989-02-07
JP2542391B2 JP2542391B2 (en) 1996-10-09

Family

ID=16303119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193150A Expired - Fee Related JP2542391B2 (en) 1987-07-31 1987-07-31 Microwave data transmission device

Country Status (1)

Country Link
JP (1) JP2542391B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04140685A (en) * 1990-10-01 1992-05-14 Sharp Corp Responder used for moving object identification system
JPH04347328A (en) * 1991-05-21 1992-12-02 Toyota Autom Loom Works Ltd Driving device for cooling fan
US7650121B2 (en) 2005-02-19 2010-01-19 Industry - University Cooperation Foundation Sogang University Time division duplexing transmission/reception apparatus and method using polarized duplexer
GB2489416A (en) * 2011-03-25 2012-10-03 Mbda Uk Ltd A transponder shifts a received interrogation signal in frequency and uses the shifted signal as a carrier signal for data transmissions to a reader
JP2020145513A (en) * 2019-03-04 2020-09-10 日本電信電話株式会社 Radio communication system, radio communication method, and radio communication device
JP2020145512A (en) * 2019-03-04 2020-09-10 日本電信電話株式会社 Radio communication system, radio communication method, and radio communication device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04140685A (en) * 1990-10-01 1992-05-14 Sharp Corp Responder used for moving object identification system
JPH04347328A (en) * 1991-05-21 1992-12-02 Toyota Autom Loom Works Ltd Driving device for cooling fan
US7650121B2 (en) 2005-02-19 2010-01-19 Industry - University Cooperation Foundation Sogang University Time division duplexing transmission/reception apparatus and method using polarized duplexer
GB2489416A (en) * 2011-03-25 2012-10-03 Mbda Uk Ltd A transponder shifts a received interrogation signal in frequency and uses the shifted signal as a carrier signal for data transmissions to a reader
JP2020145513A (en) * 2019-03-04 2020-09-10 日本電信電話株式会社 Radio communication system, radio communication method, and radio communication device
JP2020145512A (en) * 2019-03-04 2020-09-10 日本電信電話株式会社 Radio communication system, radio communication method, and radio communication device

Also Published As

Publication number Publication date
JP2542391B2 (en) 1996-10-09

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees