JPS6471396A - Article identifying system - Google Patents

Article identifying system

Info

Publication number
JPS6471396A
JPS6471396A JP62229324A JP22932487A JPS6471396A JP S6471396 A JPS6471396 A JP S6471396A JP 62229324 A JP62229324 A JP 62229324A JP 22932487 A JP22932487 A JP 22932487A JP S6471396 A JPS6471396 A JP S6471396A
Authority
JP
Japan
Prior art keywords
circuit
transmitting
signal
resonance
data carrier
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
JP62229324A
Other languages
Japanese (ja)
Inventor
Kazunori Morikawa
Hiroyuki Yamazaki
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP62229324A priority Critical patent/JPS6471396A/en
Publication of JPS6471396A publication Critical patent/JPS6471396A/en
Pending legal-status Critical Current

Links

Landscapes

  • Selective Calling Equipment (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Sorting Of Articles (AREA)

Abstract

PURPOSE:To transmit data without fail even when the distance between a main body and a data carrier is made longer, by transmitting a binary signal determined by the combination between special positive and negative pulses with a pulse transmitting circuit. CONSTITUTION:The binary signal determined by the combination between the prescribed positive and negative pulses with a pulse transmitting circuit 22 is sent out from a transmitting coil L1. In a data carrier 2, a built-in clock separating circuit separates a clock from the pulse signal and a demodulating circuit demodulates the binary signal. Further, the data necessary for a nonvolatile memory are written, read, and the resonance frequencies of a resonance circuit are changed. By changing the resonance frequencies of the resonance circuit, the frequencies of an attenuation signal received by a receiving circuit 23 change according to the resonance frequencies. Consequently, the signal can be transmitted without fail to the data carrier 2 which is located at a long and far signal transmitting distance.
JP62229324A 1987-09-11 1987-09-11 Article identifying system Pending JPS6471396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229324A JPS6471396A (en) 1987-09-11 1987-09-11 Article identifying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229324A JPS6471396A (en) 1987-09-11 1987-09-11 Article identifying system

Publications (1)

Publication Number Publication Date
JPS6471396A true JPS6471396A (en) 1989-03-16

Family

ID=16890365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229324A Pending JPS6471396A (en) 1987-09-11 1987-09-11 Article identifying system

Country Status (1)

Country Link
JP (1) JPS6471396A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0348498A (en) * 1989-07-14 1991-03-01 Koden Electron Co Ltd Data carrier
US5204657A (en) * 1991-05-28 1993-04-20 Impact Products Corporation Locating device
US5294915A (en) * 1991-12-27 1994-03-15 Owen C Randal Means for locating a remote control device
US5952918A (en) * 1993-11-18 1999-09-14 Ohayon; Shalom Recovery mode feature for remote units

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0348498A (en) * 1989-07-14 1991-03-01 Koden Electron Co Ltd Data carrier
US5204657A (en) * 1991-05-28 1993-04-20 Impact Products Corporation Locating device
US5294915A (en) * 1991-12-27 1994-03-15 Owen C Randal Means for locating a remote control device
US5952918A (en) * 1993-11-18 1999-09-14 Ohayon; Shalom Recovery mode feature for remote units

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