JPS57193145A - Center-to-automobile communication equipment using ultrasonic wave car detector - Google Patents

Center-to-automobile communication equipment using ultrasonic wave car detector

Info

Publication number
JPS57193145A
JPS57193145A JP7827981A JP7827981A JPS57193145A JP S57193145 A JPS57193145 A JP S57193145A JP 7827981 A JP7827981 A JP 7827981A JP 7827981 A JP7827981 A JP 7827981A JP S57193145 A JPS57193145 A JP S57193145A
Authority
JP
Japan
Prior art keywords
car
wave
center
head
transmitted
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
JP7827981A
Other languages
Japanese (ja)
Inventor
Masahiro Ikeuchi
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
Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP7827981A priority Critical patent/JPS57193145A/en
Publication of JPS57193145A publication Critical patent/JPS57193145A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves

Abstract

PURPOSE:To commonly use a center-to-automobile communication device to an existing ultrasonic car detector, by transmitting data through the AM modulation of a wave length of an ultrasonic car detector and making data with reception and demodulation by a wave reception head provided on a car. CONSTITUTION:An AM modulator 11 of an ultrasonic wave car detector consisting of a head 1 and a device main body 5 AM-modulates a pulse modulating wave at the pre-stage based on a coded transmission data from a center and the pulse is transmitted to the head 1 after amplification. The transmitted wave with this head 1 is reflected on a car 6 or a road 2 and received with the head 1. This received wave is amplified at a reception amplifier 13 and the timing between the transmitted wave and the reflected reception wave is controlled at a gate 14 and the propriety of detection of the car 6 is discriminated at a discrimination circuit 15. When the car 6 is detected, a detection pulse is outputted and transmitted to the center. Thus, data can be obtained by the car 6 by demodulating the received AM modulation.
JP7827981A 1981-05-23 1981-05-23 Center-to-automobile communication equipment using ultrasonic wave car detector Pending JPS57193145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7827981A JPS57193145A (en) 1981-05-23 1981-05-23 Center-to-automobile communication equipment using ultrasonic wave car detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7827981A JPS57193145A (en) 1981-05-23 1981-05-23 Center-to-automobile communication equipment using ultrasonic wave car detector

Publications (1)

Publication Number Publication Date
JPS57193145A true JPS57193145A (en) 1982-11-27

Family

ID=13657521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7827981A Pending JPS57193145A (en) 1981-05-23 1981-05-23 Center-to-automobile communication equipment using ultrasonic wave car detector

Country Status (1)

Country Link
JP (1) JPS57193145A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5952981A (en) * 1995-08-24 1999-09-14 Mcc Corporation Antenna for reducing an effect of a radio wave blocking obstacle
JP2006058164A (en) * 2004-08-20 2006-03-02 Mitsubishi Electric Corp Ultrasonic location information transmitter, ultrasonic location information receiver, and ultrasonic location information detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5952981A (en) * 1995-08-24 1999-09-14 Mcc Corporation Antenna for reducing an effect of a radio wave blocking obstacle
JP2006058164A (en) * 2004-08-20 2006-03-02 Mitsubishi Electric Corp Ultrasonic location information transmitter, ultrasonic location information receiver, and ultrasonic location information detector

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