[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS53106599A - Ultrasonic alarm device - Google Patents

Ultrasonic alarm device

Info

Publication number
JPS53106599A
JPS53106599A JP2195277A JP2195277A JPS53106599A JP S53106599 A JPS53106599 A JP S53106599A JP 2195277 A JP2195277 A JP 2195277A JP 2195277 A JP2195277 A JP 2195277A JP S53106599 A JPS53106599 A JP S53106599A
Authority
JP
Japan
Prior art keywords
alarm device
output
ultrasonic alarm
ultrasonic
pervent
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
JP2195277A
Other languages
Japanese (ja)
Inventor
Hiroshi Ohashi
Hironobu Inoue
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2195277A priority Critical patent/JPS53106599A/en
Publication of JPS53106599A publication Critical patent/JPS53106599A/en
Pending legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To pervent the malfunctions of alarm devices by providing such signal processing and detecting circuit which produces an output as detection of a man when the phase difference outputs of the same direction continue for more than a fixed time and does not produce any output as noises in other cases.
COPYRIGHT: (C)1978,JPO&Japio
JP2195277A 1977-02-28 1977-02-28 Ultrasonic alarm device Pending JPS53106599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2195277A JPS53106599A (en) 1977-02-28 1977-02-28 Ultrasonic alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2195277A JPS53106599A (en) 1977-02-28 1977-02-28 Ultrasonic alarm device

Publications (1)

Publication Number Publication Date
JPS53106599A true JPS53106599A (en) 1978-09-16

Family

ID=12069390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2195277A Pending JPS53106599A (en) 1977-02-28 1977-02-28 Ultrasonic alarm device

Country Status (1)

Country Link
JP (1) JPS53106599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138262A (en) * 1980-03-31 1981-10-28 Matsushita Electric Works Ltd Pulse doppler type detecting device for ultrasonic moving body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138262A (en) * 1980-03-31 1981-10-28 Matsushita Electric Works Ltd Pulse doppler type detecting device for ultrasonic moving body
JPS6353514B2 (en) * 1980-03-31 1988-10-24 Matsushita Electric Works Ltd

Similar Documents

Publication Publication Date Title
JPS53106599A (en) Ultrasonic alarm device
JPS546436A (en) Operation detector of electronic computer
JPS537165A (en) Synchronism detecting circuit of phase control circuit
JPS5359400A (en) Annunciator
JPS568916A (en) Unique word detecting circuit
JPS5271653A (en) Detection circut for the lost of power source voltage
JPS533799A (en) Ultrasonic alert device
JPS5315171A (en) Signal level detection circuit
JPS52106446A (en) Absent phase detector
JPS5417067A (en) Electronic watch
JPS5330857A (en) Signal change detector circuit
JPS5377412A (en) Noise eliminating circuit
JPS5374900A (en) Ultrasonic alarm
JPS5361999A (en) Ultrasonic guarding device
JPS52110523A (en) Burst signal processing circuit
JPS51134008A (en) Error measurement circuit
JPS5374899A (en) Ultrasonic alarm
JPS5376871A (en) Revolution stop detector
JPS51119271A (en) Frequency detection device
JPS5315164A (en) Electronic watch with alarm
JPS5362089A (en) Bus detecting device
JPS5312577A (en) Apparatus for preventing double-beating of press
JPS5367473A (en) Speed detector
JPS53115046A (en) Alarm circuit system
JPS5421157A (en) Straight line detection circuit