JPS5376697A - Microwave recognizing apparatus - Google Patents

Microwave recognizing apparatus

Info

Publication number
JPS5376697A
JPS5376697A JP15239976A JP15239976A JPS5376697A JP S5376697 A JPS5376697 A JP S5376697A JP 15239976 A JP15239976 A JP 15239976A JP 15239976 A JP15239976 A JP 15239976A JP S5376697 A JPS5376697 A JP S5376697A
Authority
JP
Japan
Prior art keywords
microwave
recognizing apparatus
recognizing
codes
recognized
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
JP15239976A
Other languages
Japanese (ja)
Inventor
Yoshihiko Akaiwa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15239976A priority Critical patent/JPS5376697A/en
Publication of JPS5376697A publication Critical patent/JPS5376697A/en
Pending 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
    • G01S13/75—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
    • G01S13/751—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 wherein the responder or reflector radiates a coded signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Traffic Control Systems (AREA)
  • Aerials With Secondary Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To obtain a recognizing apparatus of a simple constitution of small transmission power without requiring power source for the apparatus to be recognized and of easy changing of codes.
JP15239976A 1976-12-17 1976-12-17 Microwave recognizing apparatus Pending JPS5376697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15239976A JPS5376697A (en) 1976-12-17 1976-12-17 Microwave recognizing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15239976A JPS5376697A (en) 1976-12-17 1976-12-17 Microwave recognizing apparatus

Publications (1)

Publication Number Publication Date
JPS5376697A true JPS5376697A (en) 1978-07-07

Family

ID=15539654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15239976A Pending JPS5376697A (en) 1976-12-17 1976-12-17 Microwave recognizing apparatus

Country Status (1)

Country Link
JP (1) JPS5376697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0456676A (en) * 1990-06-25 1992-02-24 Matsushita Electric Ind Co Ltd Train number collecting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0456676A (en) * 1990-06-25 1992-02-24 Matsushita Electric Ind Co Ltd Train number collecting method

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