GB1057767A - Digital microphone - Google Patents

Digital microphone

Info

Publication number
GB1057767A
GB1057767A GB22300/64A GB2230064A GB1057767A GB 1057767 A GB1057767 A GB 1057767A GB 22300/64 A GB22300/64 A GB 22300/64A GB 2230064 A GB2230064 A GB 2230064A GB 1057767 A GB1057767 A GB 1057767A
Authority
GB
United Kingdom
Prior art keywords
digital microphone
target electrodes
binary
markings
heading
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
GB22300/64A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1057767A publication Critical patent/GB1057767A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/044—Sample and hold circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • 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
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

1,057,767. Cathode-ray tubes. STANDARD TELEPHONES & CABLES Ltd. May 29, 1964 [June 3, 1963], No. 22300/64. Heading H1D. [Also in Division G4] In a digital microphone sound impinges on a diaphragm 1 carrying a magnet 9 to correspondingly deflect a line electron beam across a coded grid to produce digitally significant patterns of markings on output target electrodes. Any code, such as pure binary or cyclic binary, can be used and the target electrodes can be scanned sequentially to provide a serial read-out for use in a pulse code modulation system.
GB22300/64A 1963-06-03 1964-05-29 Digital microphone Expired GB1057767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US284954A US3286032A (en) 1963-06-03 1963-06-03 Digital microphone

Publications (1)

Publication Number Publication Date
GB1057767A true GB1057767A (en) 1967-02-08

Family

ID=23092163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22300/64A Expired GB1057767A (en) 1963-06-03 1964-05-29 Digital microphone

Country Status (6)

Country Link
US (1) US3286032A (en)
CH (1) CH431622A (en)
DE (1) DE1437468A1 (en)
FR (1) FR1397060A (en)
GB (1) GB1057767A (en)
SE (1) SE321709B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435159A (en) * 1966-01-03 1969-03-25 Bell Telephone Labor Inc Circuit and method for testing complex systems
US3521271A (en) * 1966-07-15 1970-07-21 Stromberg Carlson Corp Electro-optical analog to digital converter
US3433959A (en) * 1966-07-25 1969-03-18 Perkin Elmer Corp Microphone
FR2050890A5 (en) * 1969-06-27 1971-04-02 Bernard Patrice
US3663758A (en) * 1970-03-24 1972-05-16 Teaching Complements Inc Speech pattern recognition system
CH539845A (en) * 1972-06-30 1973-07-31 Ibm Electroacoustic converter
US4395593A (en) * 1979-11-27 1983-07-26 Bell Telephone Laboratories, Incorporated Acoustic differential digital coder
US4284858A (en) * 1979-12-06 1981-08-18 Rockwell International Corporation Dichroic transducer
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
JPS57149000U (en) * 1981-03-12 1982-09-18
US4515997A (en) * 1982-09-23 1985-05-07 Stinger Jr Walter E Direct digital loudspeaker
DE3642055A1 (en) * 1986-12-09 1988-07-07 Wolfgang Dr Littmann Device for directly converting sound into digital information, digital microphone
US5262884A (en) * 1991-10-09 1993-11-16 Micro-Optics Technologies, Inc. Optical microphone with vibrating optical element
US5621806A (en) * 1992-02-14 1997-04-15 Texas Instruments Incorporated Apparatus and methods for determining the relative displacement of an object
US5995260A (en) * 1997-05-08 1999-11-30 Ericsson Inc. Sound transducer and method having light detector for detecting displacement of transducer diaphragm
JP2001119798A (en) * 1999-10-15 2001-04-27 Kenwood Corp Communication helmet
CA2324572A1 (en) * 2000-10-26 2002-04-26 Gerry M. Kane Digital vibration transducer
TW523994B (en) * 2001-03-14 2003-03-11 Reveo Inc Electron beam excited superconducting analog-to-digital converter
WO2009008010A2 (en) * 2007-07-12 2009-01-15 Defence Research And Development Organisation Method and apparatus for the simultaneous generation and detection of optical diffraction interference pattern on a detector
DE102009032057A1 (en) * 2009-07-07 2011-01-20 Siemens Aktiengesellschaft Pressure wave recording and playback
JP5108993B2 (en) * 2011-04-05 2012-12-26 パナソニック株式会社 Optical microphone
US9344811B2 (en) * 2012-10-31 2016-05-17 Vocalzoom Systems Ltd. System and method for detection of speech related acoustic signals by using a laser microphone
EP2958340A1 (en) * 2014-06-17 2015-12-23 Thomson Licensing Optical microphone and method using the same
US10727943B2 (en) * 2015-09-07 2020-07-28 Signify Holding B.V. Embedding data into light

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937754A (en) * 1929-11-18 1933-12-05 Rca Corp Telephony
US2173994A (en) * 1937-03-30 1939-09-26 Rca Corp Microphone
GB503853A (en) * 1937-10-14 1939-04-14 Marconi Wireless Telegraph Co Improvements in or relating to microphones
US2458652A (en) * 1946-12-13 1949-01-11 Bell Telephone Labor Inc Electron discharge apparatus
US2596199A (en) * 1951-02-19 1952-05-13 Bell Telephone Labor Inc Error correction in sequential code pulse transmission

Also Published As

Publication number Publication date
CH431622A (en) 1967-03-15
SE321709B (en) 1970-03-16
FR1397060A (en) 1965-04-23
US3286032A (en) 1966-11-15
DE1437468A1 (en) 1968-10-10

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