JPH0251155B2 - - Google Patents

Info

Publication number
JPH0251155B2
JPH0251155B2 JP16871883A JP16871883A JPH0251155B2 JP H0251155 B2 JPH0251155 B2 JP H0251155B2 JP 16871883 A JP16871883 A JP 16871883A JP 16871883 A JP16871883 A JP 16871883A JP H0251155 B2 JPH0251155 B2 JP H0251155B2
Authority
JP
Japan
Prior art keywords
mixed frequency
circuit
frequency signal
mixed
filter
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
JP16871883A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6058569A (ja
Inventor
Hideji Morimatsu
Yoshinori Fujiwara
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP16871883A priority Critical patent/JPS6058569A/ja
Publication of JPS6058569A publication Critical patent/JPS6058569A/ja
Publication of JPH0251155B2 publication Critical patent/JPH0251155B2/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
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP16871883A 1983-09-12 1983-09-12 指向性受波ビ−ムの形成装置 Granted JPS6058569A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16871883A JPS6058569A (ja) 1983-09-12 1983-09-12 指向性受波ビ−ムの形成装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16871883A JPS6058569A (ja) 1983-09-12 1983-09-12 指向性受波ビ−ムの形成装置

Publications (2)

Publication Number Publication Date
JPS6058569A JPS6058569A (ja) 1985-04-04
JPH0251155B2 true JPH0251155B2 (enrdf_load_stackoverflow) 1990-11-06

Family

ID=15873152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16871883A Granted JPS6058569A (ja) 1983-09-12 1983-09-12 指向性受波ビ−ムの形成装置

Country Status (1)

Country Link
JP (1) JPS6058569A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6058569A (ja) 1985-04-04

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