FR747504A - - Google Patents

Info

Publication number
FR747504A
FR747504A FR747504DA FR747504A FR 747504 A FR747504 A FR 747504A FR 747504D A FR747504D A FR 747504DA FR 747504 A FR747504 A FR 747504A
Authority
FR
France
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
Other languages
French (fr)
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.)
Publication date
Priority claimed from GB3465731A external-priority patent/GB394325A/en
Application granted granted Critical
Publication of FR747504A publication Critical patent/FR747504A/fr
Priority claimed from GB450134A external-priority patent/GB429054A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/04Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00Transducers of moving-armature or moving-core type
    • H04R11/08Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R11/12Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R9/16Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S1/00Two-channel systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S1/00Two-channel systems
    • H04S1/002Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
FR747504D 1931-12-14 Expired FR747504A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3465731A GB394325A (en) 1931-12-14 1931-12-14 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
GB450134A GB429054A (en) 1934-02-10 1934-02-10 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems

Publications (1)

Publication Number Publication Date
FR747504A true FR747504A (en) 1933-06-16

Family

ID=31995661

Family Applications (3)

Application Number Title Priority Date Filing Date
FR747504D Expired FR747504A (en) 1931-12-14
FR45547D Expired FR45547E (en) 1931-12-14 1934-10-23 Improvements in sound transmission, recording and reproduction devices
FR45642D Expired FR45642E (en) 1931-12-14 1934-11-06 Improvements in sound transmission, recording and reproduction devices

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR45547D Expired FR45547E (en) 1931-12-14 1934-10-23 Improvements in sound transmission, recording and reproduction devices
FR45642D Expired FR45642E (en) 1931-12-14 1934-11-06 Improvements in sound transmission, recording and reproduction devices

Country Status (2)

Country Link
US (2) US2093540A (en)
FR (3) FR45547E (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744615C (en) * 1941-03-07 1944-01-21 Philips Nv Microphone for noisy surroundings
US2498772A (en) * 1941-05-15 1950-02-28 Bendix Aviat Corp Aerial torpedo
US2481911A (en) * 1942-05-20 1949-09-13 Hartford Nat Bank & Trust Co Device for adjusting the stereophonic effect in devices for stereophonic transmission
US2505585A (en) * 1944-12-23 1950-04-25 Us Sec War Electroacoustic binaural listening system
US2616970A (en) * 1948-02-11 1952-11-04 Hartford Nat Bank & Trust Co Device for the transmission by electrical means of oscillations of acoustic frequency
US2710662A (en) * 1948-12-23 1955-06-14 Armour Res Found Sound projection system
US2836662A (en) * 1954-08-18 1958-05-27 Emi Ltd Electrical sound transmission systems
NL106407C (en) * 1956-08-31 1963-10-02
US3053943A (en) * 1957-07-12 1962-09-11 Columbia Broadcasting Syst Inc Phonograph record cutter
US3055989A (en) * 1957-08-12 1962-09-25 Columbia Broadcasting Syst Inc Ceramic reproducer
NL104447C (en) * 1957-10-29
NL106582C (en) * 1957-10-30
US2958738A (en) * 1958-01-06 1960-11-01 Erie Resistor Corp Compensating network for binaural pickup
US3067292A (en) * 1958-02-03 1962-12-04 Jerry B Minter Stereophonic sound transmission and reproduction
US3309469A (en) * 1958-02-27 1967-03-14 Rca Corp Phonograph pickup
US3118978A (en) * 1958-02-27 1964-01-21 Gen Electric Magnetic stereophonic phonograph cartridge
NL236717A (en) * 1958-03-03
DE1138560B (en) * 1958-03-05 1962-10-25 Fonofilm Ind As Cutting box for recording two signals in a groove of a sound carrier
US3225146A (en) * 1958-03-14 1965-12-21 Rca Corp Stereophonic phonograph system
US3155779A (en) * 1958-03-31 1964-11-03 Rca Corp Stereophonic phonograph system
US3026378A (en) * 1958-04-30 1962-03-20 Rca Corp Stereophonic audio-frequency signal amplifier systems
US3013125A (en) * 1958-05-16 1961-12-12 Columbia Broadcasting Syst Inc Stereophonic recording
NL228905A (en) * 1958-06-20
US3067295A (en) * 1958-08-04 1962-12-04 Pickering & Co Inc Stereophonic phonograph pick-up device
US3047666A (en) * 1958-10-27 1962-07-31 Murray G Crosby Compatible stereophonic system
US3215785A (en) * 1958-12-23 1965-11-02 Astatic Corp Stereophonic piezoelectric pickup cartridge
DE1173684B (en) * 1959-01-02 1964-07-09 Philips Nv Transducer for recording or scanning a groove-shaped recording track
US3002105A (en) * 1959-08-20 1961-09-26 Charles A Cady Emergency power supply
US3215786A (en) * 1959-08-21 1965-11-02 Astatic Corp Universal monaural-binaural phonograph pickup cartridge
US3083264A (en) * 1959-12-10 1963-03-26 Bell Telephone Labor Inc Sum and difference stereophonic transmission with negative feedback
DE1121826B (en) * 1960-02-02 1962-01-11 Telefunken Gmbh Mechanical-electrical converter for the generation or scanning of a grooved sound track
US3117186A (en) * 1960-02-17 1964-01-07 Richard W Burden Compatible stereophonic broadcast system
US3086780A (en) * 1960-07-26 1963-04-23 Foster Mallard Ltd Sound reproducing machines
US3261925A (en) * 1960-10-06 1966-07-19 Bernard Smith Lab Inc A Stereophonic photoelectric transducer
BE623899A (en) * 1961-10-23
NL132006C (en) * 1962-08-02
US3297831A (en) * 1964-02-06 1967-01-10 Walter O Stanton Magnetic stereophonic phonograph pickup
US3489864A (en) * 1965-03-08 1970-01-13 Electro Voice Stereo phonograph pickup and turnover mechanism
US3627931A (en) * 1968-01-23 1971-12-14 Nippon Columbia Moving magnet type stereo pickup
GB1445420A (en) * 1973-10-09 1976-08-11 Hungarofilm Vallalat Light exposure valve for recording sterophonic sound track on film
JPS51132803A (en) * 1975-04-17 1976-11-18 Nippon Hoso Kyokai <Nhk> Sound field expander
US4356349A (en) * 1980-03-12 1982-10-26 Trod Nossel Recording Studios, Inc. Acoustic image enhancing method and apparatus
US5850453A (en) 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
EP1232672A1 (en) 1999-11-25 2002-08-21 Embracing Sound Experience AB A method of processing and reproducing an audio stereo signal, and an audio stereo signal reproduction system
SE527062C2 (en) * 2003-07-21 2005-12-13 Embracing Sound Experience Ab Stereo sound processing method, device and system
US20070237340A1 (en) * 2006-04-10 2007-10-11 Edwin Pfanzagl-Cardone Microphone for Surround-Recording
SE530180C2 (en) * 2006-04-19 2008-03-18 Embracing Sound Experience Ab Speaker Device
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system

Also Published As

Publication number Publication date
US2062275A (en) 1936-11-24
US2093540A (en) 1937-09-21
FR45642E (en) 1935-11-02
FR45547E (en) 1935-09-12

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