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NL154011B - LISTENING SYSTEM. - Google Patents

LISTENING SYSTEM.

Info

Publication number
NL154011B
NL154011B NL6705344A NL6705344A NL154011B NL 154011 B NL154011 B NL 154011B NL 6705344 A NL6705344 A NL 6705344A NL 6705344 A NL6705344 A NL 6705344A NL 154011 B NL154011 B NL 154011B
Authority
NL
Netherlands
Prior art keywords
listening system
listening
Prior art date
Application number
NL6705344A
Other languages
Dutch (nl)
Other versions
NL6705344A (en
Inventor
Abraham Ir Rijbroek
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL6705344A priority Critical patent/NL154011B/en
Priority to DE19681616223 priority patent/DE1616223C3/en
Priority to GB1757968A priority patent/GB1212106A/en
Priority to FR1569897D priority patent/FR1569897A/fr
Publication of NL6705344A publication Critical patent/NL6705344A/xx
Publication of NL154011B publication Critical patent/NL154011B/en

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)
  • Electrophonic Musical Instruments (AREA)
NL6705344A 1967-04-15 1967-04-15 LISTENING SYSTEM. NL154011B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL6705344A NL154011B (en) 1967-04-15 1967-04-15 LISTENING SYSTEM.
DE19681616223 DE1616223C3 (en) 1967-04-15 1968-02-29 Listening device
GB1757968A GB1212106A (en) 1967-04-15 1968-04-11 Sonar system
FR1569897D FR1569897A (en) 1967-04-15 1968-04-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6705344A NL154011B (en) 1967-04-15 1967-04-15 LISTENING SYSTEM.

Publications (2)

Publication Number Publication Date
NL6705344A NL6705344A (en) 1968-10-16
NL154011B true NL154011B (en) 1977-07-15

Family

ID=19799860

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6705344A NL154011B (en) 1967-04-15 1967-04-15 LISTENING SYSTEM.

Country Status (3)

Country Link
FR (1) FR1569897A (en)
GB (1) GB1212106A (en)
NL (1) NL154011B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050619A5 (en) * 1969-06-18 1971-04-02 Cit Alcatel
FR2279101A1 (en) * 1974-02-20 1976-02-13 Labo Electronique Physique ULTRASONIC ANALYSIS SYSTEM
FR2567670B1 (en) * 1984-07-10 1988-01-22 Cgr Ultrasonic ELECTRONIC FOCUSING DEVICE OF ULTRASONIC WAVES

Also Published As

Publication number Publication date
NL6705344A (en) 1968-10-16
GB1212106A (en) 1970-11-11
DE1616223A1 (en) 1971-03-18
FR1569897A (en) 1969-06-06
DE1616223B2 (en) 1975-11-06

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS