JPS5242393A - Electronic type detector - Google Patents

Electronic type detector

Info

Publication number
JPS5242393A
JPS5242393A JP50118016A JP11801675A JPS5242393A JP S5242393 A JPS5242393 A JP S5242393A JP 50118016 A JP50118016 A JP 50118016A JP 11801675 A JP11801675 A JP 11801675A JP S5242393 A JPS5242393 A JP S5242393A
Authority
JP
Japan
Prior art keywords
electronic type
type detector
merchandise
field
incrorect
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
JP50118016A
Other languages
Japanese (ja)
Inventor
Yasuyuki Okumura
Chohei Nakamura
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.)
TOYO TSUSHIN KOGYO KK
Dai Nippon Printing Co Ltd
Original Assignee
TOYO TSUSHIN KOGYO KK
Dai Nippon Printing 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 TOYO TSUSHIN KOGYO KK, Dai Nippon Printing Co Ltd filed Critical TOYO TSUSHIN KOGYO KK
Priority to JP50118016A priority Critical patent/JPS5242393A/en
Publication of JPS5242393A publication Critical patent/JPS5242393A/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
    • G01S13/76—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)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

PURPOSE:To prevent the incrorect carry over of merchandise by forming magentic field between transmitter and receiver, and by oeprating alarm unit when the merchandise including inside the tag having resonant circuit passes in the field.
JP50118016A 1975-09-30 1975-09-30 Electronic type detector Pending JPS5242393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50118016A JPS5242393A (en) 1975-09-30 1975-09-30 Electronic type detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50118016A JPS5242393A (en) 1975-09-30 1975-09-30 Electronic type detector

Publications (1)

Publication Number Publication Date
JPS5242393A true JPS5242393A (en) 1977-04-01

Family

ID=14725962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50118016A Pending JPS5242393A (en) 1975-09-30 1975-09-30 Electronic type detector

Country Status (1)

Country Link
JP (1) JPS5242393A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129345U (en) * 1978-03-01 1979-09-08
JPS61501947A (en) * 1984-04-23 1986-09-04 リヒトブラウ　ジョージ　ジェイ Electronically detectable and deactivable signs and electronic safety devices using such signs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129345U (en) * 1978-03-01 1979-09-08
JPS61501947A (en) * 1984-04-23 1986-09-04 リヒトブラウ　ジョージ　ジェイ Electronically detectable and deactivable signs and electronic safety devices using such signs

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