NL154011B - LISTENING SYSTEM. - Google Patents

LISTENING SYSTEM.

Info

Publication number: NL154011B
Authority: NL; Netherlands
Prior art keywords: listening system; listening
Prior art date: 1967-04-15

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.)

1967-04-15

Filing date

1967-04-15

Publication date

1977-07-15

1967-04-15 Application filed by Philips Nv filed Critical Philips Nv

1967-04-15 Priority to NL6705344A priority Critical patent/NL154011B/en

1968-02-29 Priority to DE19681616223 priority patent/DE1616223C3/en

1968-04-11 Priority to GB1757968A priority patent/GB1212106A/en

1968-04-12 Priority to FR1569897D priority patent/FR1569897A/fr

1968-10-16 Publication of NL6705344A publication Critical patent/NL6705344A/xx

1977-07-15 Publication of NL154011B publication Critical patent/NL154011B/en

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

1967
- 1967-04-15 NL NL6705344A patent/NL154011B/en not_active IP Right Cessation
1968
- 1968-04-11 GB GB1757968A patent/GB1212106A/en not_active Expired
- 1968-04-12 FR FR1569897D patent/FR1569897A/fr not_active Expired

Also Published As

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

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Legal Events

Date	Code	Title	Description
1987-07-16	V1	Lapsed because of non-payment of the annual fee
1987-11-30	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: PHILIPS