JPS51139369A - System of setting ultrasonic transmitters and receivers - Google Patents

System of setting ultrasonic transmitters and receivers

Info

Publication number
JPS51139369A
JPS51139369A JP50062912A JP6291275A JPS51139369A JP S51139369 A JPS51139369 A JP S51139369A JP 50062912 A JP50062912 A JP 50062912A JP 6291275 A JP6291275 A JP 6291275A JP S51139369 A JPS51139369 A JP S51139369A
Authority
JP
Japan
Prior art keywords
receivers
ultrasonic transmitters
setting ultrasonic
setting
transmitters
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
JP50062912A
Other languages
Japanese (ja)
Inventor
Hiroshi Kinoshita
Tatsuo Iwasaka
Hisao Hanmura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50062912A priority Critical patent/JPS51139369A/en
Priority to US05/669,802 priority patent/US4112419A/en
Priority to GB12338/76A priority patent/GB1517602A/en
Publication of JPS51139369A publication Critical patent/JPS51139369A/en
Priority to HK331/80A priority patent/HK33180A/en
Pending legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To provide a system of setting ultrasonic transmitters and receivers, which detects the number of people and the like within a determined region highly accurately.
COPYRIGHT: (C)1976,JPO&Japio
JP50062912A 1975-03-28 1975-05-28 System of setting ultrasonic transmitters and receivers Pending JPS51139369A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50062912A JPS51139369A (en) 1975-05-28 1975-05-28 System of setting ultrasonic transmitters and receivers
US05/669,802 US4112419A (en) 1975-03-28 1976-03-25 Apparatus for detecting the number of objects
GB12338/76A GB1517602A (en) 1975-03-28 1976-03-26 Apparatus for detecting the number of objects
HK331/80A HK33180A (en) 1975-03-28 1980-06-19 Apparatus for detecting the number of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50062912A JPS51139369A (en) 1975-05-28 1975-05-28 System of setting ultrasonic transmitters and receivers

Publications (1)

Publication Number Publication Date
JPS51139369A true JPS51139369A (en) 1976-12-01

Family

ID=13213929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50062912A Pending JPS51139369A (en) 1975-03-28 1975-05-28 System of setting ultrasonic transmitters and receivers

Country Status (1)

Country Link
JP (1) JPS51139369A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01295194A (en) * 1988-05-23 1989-11-28 Omron Tateisi Electron Co Ultrasonic detecting device
JP2019207680A (en) * 2018-05-28 2019-12-05 パナソニックＩｐマネジメント株式会社 Living body detection device, living body detection method, recording medium, and program
CN111837139B (en) * 2018-05-28 2024-06-04 松下知识产权经营株式会社 Organism detection device using non-contact sensor, organism detection method, and recording medium storing program for detecting organism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01295194A (en) * 1988-05-23 1989-11-28 Omron Tateisi Electron Co Ultrasonic detecting device
JP2019207680A (en) * 2018-05-28 2019-12-05 パナソニックＩｐマネジメント株式会社 Living body detection device, living body detection method, recording medium, and program
CN111837139A (en) * 2018-05-28 2020-10-27 松下知识产权经营株式会社 Biological detection device using non-contact sensor, biological detection method, and recording medium storing program for detecting biological
US11911146B2 (en) 2018-05-28 2024-02-27 Panasonic Intellectual Property Management Co., Ltd. Living body detection device using non-contact sensor, living body detection method, and recording medium
CN111837139B (en) * 2018-05-28 2024-06-04 松下知识产权经营株式会社 Organism detection device using non-contact sensor, organism detection method, and recording medium storing program for detecting organism

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