JPH0155431B2 - - Google Patents

Info

Publication number
JPH0155431B2
JPH0155431B2 JP57022865A JP2286582A JPH0155431B2 JP H0155431 B2 JPH0155431 B2 JP H0155431B2 JP 57022865 A JP57022865 A JP 57022865A JP 2286582 A JP2286582 A JP 2286582A JP H0155431 B2 JPH0155431 B2 JP H0155431B2
Authority
JP
Japan
Prior art keywords
resolution
short
long
focal length
ultrasonic
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.)
Expired
Application number
JP57022865A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58140658A (ja
Inventor
Shinichiro Umemura
Kageyoshi Katakura
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP2286582A priority Critical patent/JPS58140658A/ja
Publication of JPS58140658A publication Critical patent/JPS58140658A/ja
Publication of JPH0155431B2 publication Critical patent/JPH0155431B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP2286582A 1982-02-17 1982-02-17 超音波送受信装置 Granted JPS58140658A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2286582A JPS58140658A (ja) 1982-02-17 1982-02-17 超音波送受信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2286582A JPS58140658A (ja) 1982-02-17 1982-02-17 超音波送受信装置

Publications (2)

Publication Number Publication Date
JPS58140658A JPS58140658A (ja) 1983-08-20
JPH0155431B2 true JPH0155431B2 (cg-RX-API-DMAC10.html) 1989-11-24

Family

ID=12094592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2286582A Granted JPS58140658A (ja) 1982-02-17 1982-02-17 超音波送受信装置

Country Status (1)

Country Link
JP (1) JPS58140658A (cg-RX-API-DMAC10.html)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142071A (en) * 1977-05-17 1978-12-11 Aloka Co Ltd Ultrasonic diagnosing device
JPS547786A (en) * 1977-06-17 1979-01-20 Aloka Co Ltd Ultrasonic wave receiver

Also Published As

Publication number Publication date
JPS58140658A (ja) 1983-08-20

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