JPS53121655A - Transmitter-receiver - Google Patents

Transmitter-receiver

Info

Publication number
JPS53121655A
JPS53121655A JP3548777A JP3548777A JPS53121655A JP S53121655 A JPS53121655 A JP S53121655A JP 3548777 A JP3548777 A JP 3548777A JP 3548777 A JP3548777 A JP 3548777A JP S53121655 A JPS53121655 A JP S53121655A
Authority
JP
Japan
Prior art keywords
receiver
transmitter
receiving
receiving direction
integrally
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
JP3548777A
Other languages
Japanese (ja)
Inventor
Ryoji Shimizu
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP3548777A priority Critical patent/JPS53121655A/en
Publication of JPS53121655A publication Critical patent/JPS53121655A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To achieve miniaturization and provide an extremely easy-to-use transmitter-receiver by providing a receiver in front of a receiving horn reflector by facing at a right angle to a receiving direction and further a transmitter whose receiving direction is the transmission direction in the further front and forming these integrally.
JP3548777A 1977-03-31 1977-03-31 Transmitter-receiver Pending JPS53121655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3548777A JPS53121655A (en) 1977-03-31 1977-03-31 Transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3548777A JPS53121655A (en) 1977-03-31 1977-03-31 Transmitter-receiver

Publications (1)

Publication Number Publication Date
JPS53121655A true JPS53121655A (en) 1978-10-24

Family

ID=12443097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3548777A Pending JPS53121655A (en) 1977-03-31 1977-03-31 Transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS53121655A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183088U (en) * 1983-05-23 1984-12-06 株式会社光電製作所 Underwater sonic transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183088U (en) * 1983-05-23 1984-12-06 株式会社光電製作所 Underwater sonic transducer
JPH0141266Y2 (en) * 1983-05-23 1989-12-06

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