CH271987A - Device for the transmission of electrical oscillations of acoustic frequency. - Google Patents

Device for the transmission of electrical oscillations of acoustic frequency.

Info

Publication number
CH271987A
CH271987A CH271987DA CH271987A CH 271987 A CH271987 A CH 271987A CH 271987D A CH271987D A CH 271987DA CH 271987 A CH271987 A CH 271987A
Authority
CH
Switzerland
Prior art keywords
transmission
acoustic frequency
electrical oscillations
oscillations
electrical
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
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
Publication of CH271987A publication Critical patent/CH271987A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/26—Reverberation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/27—Stereo

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
CH271987D 1948-02-11 1949-02-09 Device for the transmission of electrical oscillations of acoustic frequency. CH271987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL271987X 1948-02-11

Publications (1)

Publication Number Publication Date
CH271987A true CH271987A (en) 1950-11-30

Family

ID=19781973

Family Applications (1)

Application Number Title Priority Date Filing Date
CH271987D CH271987A (en) 1948-02-11 1949-02-09 Device for the transmission of electrical oscillations of acoustic frequency.

Country Status (3)

Country Link
US (1) US2616970A (en)
CH (1) CH271987A (en)
DE (1) DE960732C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098997B (en) * 1955-02-07 1961-02-09 Saba Gmbh Arrangement for pseudostereophonic reproduction in electroacoustic devices, especially in radio, television and phono devices

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802061A (en) * 1954-07-02 1957-08-06 Perspecta Sound Inc Perspective sound apparatus
US2993090A (en) * 1955-03-16 1961-07-18 Arf Products Electrostatic speaker circuit
US3046337A (en) * 1957-08-05 1962-07-24 Hamner Electronics Company Inc Stereophonic sound
US3038966A (en) * 1959-04-01 1962-06-12 Stereotone Inc Sound reproducing systems
DE1282718B (en) * 1959-11-14 1968-11-14 Erhart Zitzlaff Arrangement for stereophonic and pseudo-stereophonic sound reproduction
DE1171016B (en) * 1959-11-14 1964-05-27 Erhart Zitzlaff Arrangement for pseudostereophonic sound reproduction
US3147333A (en) * 1960-07-27 1964-09-01 Baldwin Co D H Audio modulation system
JPS51132803A (en) * 1975-04-17 1976-11-18 Nippon Hoso Kyokai <Nhk> Sound field expander
US4239939A (en) * 1979-03-09 1980-12-16 Rca Corporation Stereophonic sound synthesizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR613417A (en) * 1925-03-31 1926-11-17
GB297308A (en) * 1927-09-17 1928-10-04 Forest Phonofilms Ltd De Improvements in or connected with sound reproducing
FR747504A (en) * 1931-12-14 1933-06-16
US2098372A (en) * 1933-10-23 1937-11-09 Emi Ltd Sound-transmission, sound-recording, and sound-reproducing system
US2098561A (en) * 1934-02-09 1937-11-09 Rca Corp System for producing stereosonic effects
US2179840A (en) * 1938-05-03 1939-11-14 Frida Bucky Loudspeaker arrangement
US2261628A (en) * 1940-03-22 1941-11-04 Bell Telephone Labor Inc Stereophonic reproduction by carrier wave transmission
US2352696A (en) * 1940-07-24 1944-07-04 Boer Kornelis De Device for the stereophonic registration, transmission, and reproduction of sounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098997B (en) * 1955-02-07 1961-02-09 Saba Gmbh Arrangement for pseudostereophonic reproduction in electroacoustic devices, especially in radio, television and phono devices

Also Published As

Publication number Publication date
US2616970A (en) 1952-11-04
DE960732C (en) 1957-03-28

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