JPS5235599A - Watching device - Google Patents

Watching device

Info

Publication number
JPS5235599A
JPS5235599A JP50111114A JP11111475A JPS5235599A JP S5235599 A JPS5235599 A JP S5235599A JP 50111114 A JP50111114 A JP 50111114A JP 11111475 A JP11111475 A JP 11111475A JP S5235599 A JPS5235599 A JP S5235599A
Authority
JP
Japan
Prior art keywords
watching device
phase
extermal
performes
malfunction
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.)
Granted
Application number
JP50111114A
Other languages
Japanese (ja)
Other versions
JPS6118239B2 (en
Inventor
Hiroshi Ohashi
Hironobu Inoue
Susumu Katayama
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 JP50111114A priority Critical patent/JPS5235599A/en
Priority to US05/719,159 priority patent/US4114146A/en
Priority to GB36835/76A priority patent/GB1563018A/en
Priority to IT5123176A priority patent/IT1074135B/en
Priority to FR7627358A priority patent/FR2324073A1/en
Priority to NLAANVRAGE7610049,A priority patent/NL177856C/en
Priority to DE2641017A priority patent/DE2641017C3/en
Priority to CA261,091A priority patent/CA1087724A/en
Publication of JPS5235599A publication Critical patent/JPS5235599A/en
Publication of JPS6118239B2 publication Critical patent/JPS6118239B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Only when the phase performes rotations in a fixed direction at phase rotation discrimination circuit, output is transmitted. In this way, the malfunction of the watching device caused by extermal noise, etc. can be effectively avoided.
COPYRIGHT: (C)1977,JPO&Japio
JP50111114A 1975-09-13 1975-09-13 Watching device Granted JPS5235599A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP50111114A JPS5235599A (en) 1975-09-13 1975-09-13 Watching device
US05/719,159 US4114146A (en) 1975-09-13 1976-08-31 Ultrasonic wave watching device of moving object detecting type
GB36835/76A GB1563018A (en) 1975-09-13 1976-09-06 Ultrasonic monitoring device for detecting a moving object
IT5123176A IT1074135B (en) 1975-09-13 1976-09-10 Ultrasonic alarm system for movable objects - detects a phase difference between reflected and reference signal (NL150377)
FR7627358A FR2324073A1 (en) 1975-09-13 1976-09-10 ULTRASONIC SURVEILLANCE DEVICE OF THE TYPE INTENDED TO DETECT MOVING OBJECTS
NLAANVRAGE7610049,A NL177856C (en) 1975-09-13 1976-09-10 DEVICE FOR DETECTING MOVING OBJECTS.
DE2641017A DE2641017C3 (en) 1975-09-13 1976-09-11 Ultrasonic alarm system for moving objects
CA261,091A CA1087724A (en) 1975-09-13 1976-09-13 Ultrasonic wave watching device of moving object detecting type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50111114A JPS5235599A (en) 1975-09-13 1975-09-13 Watching device

Publications (2)

Publication Number Publication Date
JPS5235599A true JPS5235599A (en) 1977-03-18
JPS6118239B2 JPS6118239B2 (en) 1986-05-12

Family

ID=14552757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50111114A Granted JPS5235599A (en) 1975-09-13 1975-09-13 Watching device

Country Status (1)

Country Link
JP (1) JPS5235599A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119242A (en) * 1977-03-29 1978-10-18 Kubota Ltd Weld joint of slightly weldable material
JPH0546203U (en) * 1991-11-21 1993-06-22 株式会社クボタ Protective cover mounting device for transmission case in rotary tiller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119242A (en) * 1977-03-29 1978-10-18 Kubota Ltd Weld joint of slightly weldable material
JPH0546203U (en) * 1991-11-21 1993-06-22 株式会社クボタ Protective cover mounting device for transmission case in rotary tiller

Also Published As

Publication number Publication date
JPS6118239B2 (en) 1986-05-12

Similar Documents

Publication Publication Date Title
JPS5235599A (en) Watching device
JPS52152035A (en) Errorneous operation preventive circuit
JPS522380A (en) Automatic-insertion-of-semiconductor-unit-into- measiromg-socket-and-p ull-out-device
JPS5235946A (en) Memory control unit
JPS5312258A (en) Noise removing circuit
JPS5430412A (en) Motor
JPS51143473A (en) Device to open and shut the shield of altor
JPS5219217A (en) Overcurrent limiting device
JPS51129119A (en) Time error correction device
JPS51133805A (en) Fan
JPS529984A (en) Drying device
JPS5374238A (en) Power converting device
JPS52100053A (en) Rotation transmission shaft
JPS5213730A (en) Electronic printer control unit
JPS51140479A (en) Semiconductor device
JPS51149519A (en) Speed control circuit for the ac series-wound commutator motor
JPS5219333A (en) Combustion control system
JPS51116368A (en) Speed reduction mechanism
JPS53141051A (en) State change detecting and processing unit
JPS5293172A (en) Safety device for hydroextractor
JPS52119873A (en) Bidirectional photothyrister
JPS52139857A (en) Rotational body fixing device
JPS5213615A (en) Speed control unit of a d-c motor
JPS51129014A (en) Electrically driven vehicle speed control device
JPS5316973A (en) Sludge hydroextracting device