JPS6437128A - Microwave data transmission equipment - Google Patents
Microwave data transmission equipmentInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-07-31 JP JP62193150A patent/JP2542391B2/en not_active Expired - Fee Related
Cited By (6)
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 |