IT1088164B - SOUND RECEIVER SYSTEM WITH SELECTED DIRECTIONAL BAND ELIMINATION - Google Patents

SOUND RECEIVER SYSTEM WITH SELECTED DIRECTIONAL BAND ELIMINATION

Info

Publication number: IT1088164B
Authority: IT; Italy
Prior art keywords: receiver system; sound receiver; band elimination; selected directional; directional band
Prior art date: 1976-11-01

Application number

IT29172/77A

Other languages

Italian (it)

Original Assignee

Polaroid 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.)

1976-11-01

Filing date

1977-10-31

Publication date

1985-06-10

1977-10-31 Application filed by Polaroid Corp filed Critical Polaroid Corp

1985-06-10 Application granted granted Critical

1985-06-10 Publication of IT1088164B publication Critical patent/IT1088164B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
General Health & Medical Sciences (AREA)
Circuit For Audible Band Transducer (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

IT29172/77A 1976-11-01 1977-10-31 SOUND RECEIVER SYSTEM WITH SELECTED DIRECTIONAL BAND ELIMINATION IT1088164B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US73734776A	1976-11-01	1976-11-01

Publications (1)

Publication Number	Publication Date
IT1088164B true IT1088164B (en)	1985-06-10

Family

ID=24963548

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT29172/77A IT1088164B (en)	1976-11-01	1977-10-31	SOUND RECEIVER SYSTEM WITH SELECTED DIRECTIONAL BAND ELIMINATION

Country Status (8)

Country	Link
JP (1)	JPS5357020A (en)
AT (1)	AT358927B (en)
CA (1)	CA1091588A (en)
CH (1)	CH622395A5 (en)
DE (1)	DE2748288A1 (en)
FR (1)	FR2369766A1 (en)
GB (1)	GB1589691A (en)
IT (1)	IT1088164B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4334740A (en) *	1978-09-12	1982-06-15	Polaroid Corporation	Receiving system having pre-selected directional response
JPS5910119B2 (en) *	1979-04-26	1984-03-07	日本ビクター株式会社	variable directional microphone
DE3020247C2 (en) *	1980-05-28	1982-09-02	Franz Vertriebsgesellschaft mbH, 7634 Kippenheim	Method and arrangement for converting sound waves into digital electrical signals with the aid of electroacoustic converters
JPS5954039U (en) *	1982-09-30	1984-04-09	株式会社ノーリツ	Circulating hot water bath pot
FR2559325B1 (en) *	1984-02-06	1986-08-22	Renault	APPARATUS FOR CAPTURING AND TRANSMITTING THE WORD OF A PERSON PLACED IN A DISTURBED ENVIRONMENT IN ORDER TO PERFORM A PROCESSING OF THIS WORD
JPS63132241U (en) *	1987-02-20	1988-08-30
US5463694A (en) *	1993-11-01	1995-10-31	Motorola	Gradient directional microphone system and method therefor
US5515445A (en) *	1994-06-30	1996-05-07	At&T Corp.	Long-time balancing of omni microphones
JP7621970B2 (en) *	2019-12-10	2025-01-27	テルモ株式会社	Packaging boxes and medical equipment packaged in packaging boxes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3502811A (en) *	1967-12-11	1970-03-24	Bell Telephone Labor Inc	Directional microphone with frequency independent beamwidth
JPS5132445Y2 (en) *	1971-04-09	1976-08-13
JPS4990103A (en) *	1972-12-26	1974-08-28
GB1512514A (en) *	1974-07-12	1978-06-01	Nat Res Dev	Microphone assemblies
DE2439634B1 (en) *	1974-08-19	1976-03-18	Schoeps, Karl, Dr.-Ing., 7500 Karlsruhe	ARRANGEMENT FOR DIRECTED SOUND RECEPTION

1977
- 1977-07-06 CA CA282,195A patent/CA1091588A/en not_active Expired
- 1977-09-30 JP JP11698077A patent/JPS5357020A/en active Granted
- 1977-10-06 FR FR7730089A patent/FR2369766A1/en active Granted
- 1977-10-12 GB GB42513/77A patent/GB1589691A/en not_active Expired
- 1977-10-25 AT AT763477A patent/AT358927B/en not_active IP Right Cessation
- 1977-10-27 DE DE19772748288 patent/DE2748288A1/en active Granted
- 1977-10-28 CH CH1315777A patent/CH622395A5/en not_active IP Right Cessation
- 1977-10-31 IT IT29172/77A patent/IT1088164B/en active

Also Published As

Publication number	Publication date
GB1589691A (en)	1981-05-20
AT358927B (en)	1980-10-10
DE2748288A1 (en)	1978-05-03
JPS5357020A (en)	1978-05-24
ATA763477A (en)	1980-02-15
FR2369766B1 (en)	1984-03-23
CH622395A5 (en)	1981-03-31
FR2369766A1 (en)	1978-05-26
CA1091588A (en)	1980-12-16
JPS5623360B2 (en)	1981-05-30
DE2748288C2 (en)	1989-11-02

Publication	Publication Date	Title
NL7600177A (en)	1976-10-05	SPEAKER SYSTEM.
IT1123107B (en)	1986-04-30	SOUND RECEPTION SYSTEM FOR CINEMATOGRAPHIC MACHINES WITH PRE-SELECTED DIRECTIONAL RESPONSE
NO144505C (en)	1981-09-09	RECEIVER.
AT365020B (en)	1981-12-10	RADIO SYSTEM
SE7609324L (en)	1977-09-02	RECEIVER FOR RADIO SIGNALS
NL7701434A (en)	1977-08-12	SPEAKER SYSTEM.
DK335175A (en)	1976-01-27	RECEPTION AMPLIFIER
NL7707064A (en)	1977-12-28	SIGNAL RECEIVER.
NL7702803A (en)	1977-09-20	OMNIFONIC MICROPHONE OR SPEAKER SYSTEM.
NL188876C (en)	1992-10-16	RADIO RECEIVER.
IT1088164B (en)	1985-06-10	SOUND RECEIVER SYSTEM WITH SELECTED DIRECTIONAL BAND ELIMINATION
NL7702202A (en)	1978-03-29	SPEAKER SYSTEM.
SE7610763L (en)	1977-04-03	RADIO RECEIVER
NL189637C (en)	1993-06-01	RADIO RECEIVER.
DK132477C (en)	1976-05-10	AUDIO BAND
NL186613C (en)	1991-01-02	SPEAKER SYSTEM.
NL7709527A (en)	1978-03-06	SPEAKER SYSTEM.
SE7506924L (en)	1976-02-20	DIRECTION FOR DIRECT SOUND RECEPTION.
DD130523A5 (en)	1978-04-05	SOUND SYSTEM
SE7613094L (en)	1977-05-28	RADIO TRANSMISSION SYSTEM
SE7703768L (en)	1977-10-04	RECEPTION B-POWER AMPLIFIER
NL188972C (en)	1992-11-16	RADIO RECEIVER.
NL7604698A (en)	1976-11-04	AM STEREO RECEIVER.
SE395213B (en)	1977-08-01	NUMBER PROTECTED FREQUENCY SELECTIVE SIGNAL RECEIVER
SE7613089L (en)	1978-05-24	SPEAKER SYSTEM