JPS5434265A - Transmitter-receiver - Google Patents

Transmitter-receiver

Info

Publication number
JPS5434265A
JPS5434265A JP10092077A JP10092077A JPS5434265A JP S5434265 A JPS5434265 A JP S5434265A JP 10092077 A JP10092077 A JP 10092077A JP 10092077 A JP10092077 A JP 10092077A JP S5434265 A JPS5434265 A JP S5434265A
Authority
JP
Japan
Prior art keywords
transmitter
receiver
directivity
poles
transmission
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
JP10092077A
Other languages
Japanese (ja)
Other versions
JPS6110784B2 (en
Inventor
Takeshi Nakamura
Jiro Mitsuoka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10092077A priority Critical patent/JPS5434265A/en
Publication of JPS5434265A publication Critical patent/JPS5434265A/en
Publication of JPS6110784B2 publication Critical patent/JPS6110784B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source

Abstract

PURPOSE:To reduce sub-poles of directivity and improve direction resolution by so performing weighting that the signal levels of transmission and reception decrease as they go further from the center of the opening plane of a reflection umbrella.
JP10092077A 1977-08-22 1977-08-22 Transmitter-receiver Granted JPS5434265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10092077A JPS5434265A (en) 1977-08-22 1977-08-22 Transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10092077A JPS5434265A (en) 1977-08-22 1977-08-22 Transmitter-receiver

Publications (2)

Publication Number Publication Date
JPS5434265A true JPS5434265A (en) 1979-03-13
JPS6110784B2 JPS6110784B2 (en) 1986-03-31

Family

ID=14286772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10092077A Granted JPS5434265A (en) 1977-08-22 1977-08-22 Transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS5434265A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58225371A (en) * 1982-06-25 1983-12-27 Furuno Electric Co Ltd Hight output ultrasonic transmitter receiver
EP0209053A2 (en) * 1985-07-18 1987-01-21 Wolfgang Prof. Dr. Eisenmenger Method and apparatus for the non-contacting disintegration of concretions in a living body
JPS6284755A (en) * 1985-07-18 1987-04-18 ボルフガング　アイゼンメンガ− Method and apparatus for crushing stone in living body in non-contact state
JPH01132985U (en) * 1989-02-22 1989-09-11
JPH04363601A (en) * 1991-06-10 1992-12-16 Hirano Tecseed Co Ltd Slider and slide calipers using same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58225371A (en) * 1982-06-25 1983-12-27 Furuno Electric Co Ltd Hight output ultrasonic transmitter receiver
EP0209053A2 (en) * 1985-07-18 1987-01-21 Wolfgang Prof. Dr. Eisenmenger Method and apparatus for the non-contacting disintegration of concretions in a living body
JPS6284755A (en) * 1985-07-18 1987-04-18 ボルフガング　アイゼンメンガ− Method and apparatus for crushing stone in living body in non-contact state
JPH01132985U (en) * 1989-02-22 1989-09-11
JPH04363601A (en) * 1991-06-10 1992-12-16 Hirano Tecseed Co Ltd Slider and slide calipers using same

Also Published As

Publication number Publication date
JPS6110784B2 (en) 1986-03-31

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