ES202426A1 - UN SISTEMA DE TRANSMISIoN PARA SENALES ESTEREOFoNICAS, Y TRANSMISORES Y RECEPTORES PARA SU USO EN TALES SISTEMAS - Google Patents

UN SISTEMA DE TRANSMISIoN PARA SENALES ESTEREOFoNICAS, Y TRANSMISORES Y RECEPTORES PARA SU USO EN TALES SISTEMAS

Info

Publication number
ES202426A1
ES202426A1 ES0202426A ES202426A ES202426A1 ES 202426 A1 ES202426 A1 ES 202426A1 ES 0202426 A ES0202426 A ES 0202426A ES 202426 A ES202426 A ES 202426A ES 202426 A1 ES202426 A1 ES 202426A1
Authority
ES
Spain
Prior art keywords
signals
producer
carrier wave
amplitude
difference
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
ES0202426A
Other languages
English (en)
Inventor
Willem W Boelens
van Zelst Johannes J Zaalberg
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES202426A1 publication Critical patent/ES202426A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmitters (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Un sistema de transmisión estereofónico, en el cual en la extremidad del transmisor son emitidas señales estereofónicas coherentes A y B como modulaciones de la misma frecuencia de onda portadora, mientras que en la extremidad del receptor las señales emitidas como modulaciones de la misma frecuencia de onda portadora A y B son suministradas a dispositivos de reproducción separados, caracterizado porque el transmisor comprende dos canales que tienen moduladores de amplitud conectados a un oscilador común de onda portadora y, en la salida, a un sistema de antena, teniendo las señales emitidas desde los dos canales una diferencia de fase de 90º con respecto a la oscilación de onda portadora, comprendiendo al primer canal un productor de suma que integra las señales estereofónicas A y B y un modulador de amplitud sin supresión de onda portadora controlado por la señal de salida (A + B) del productor de suma, comprendiendo el segundo canal un productor de diferencia que resta las señales estereofónicas (A ¿ B) y un modulador de amplitud con supresión de la onda portadora, controlado por la señal de salida (A ¿ B) del productor de diferencia por medio de una red integradora, estando los elementos del segundo canal proporcionados para una potencia que no es mayor de 10% de la potencia de los correspondientes elementos del primer canal, y a la parte de alta frecuencia del receptor que tiene una anchura de banda de un receptor normal con modulación de amplitud (aproximadamente 9 kc/s) están conectados dos canales que tienen un detector de amplitud y un detector de frecuencia respectivamente, siendo la señal de suma A + B que ocurre a través de la salida del detector de amplitud y la señal de diferencia A ¿ B que ocurre a través de la salida del detector de frecuencia suministradas en común a un productor de diferencia por sustracción, siendo las señales coherentes A y B obtenidas por adición y sustracción suministradas a dispositivos reproductores separados.
ES0202426A 1951-04-28 1952-03-11 UN SISTEMA DE TRANSMISIoN PARA SENALES ESTEREOFoNICAS, Y TRANSMISORES Y RECEPTORES PARA SU USO EN TALES SISTEMAS Expired ES202426A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL160883A NL90521C (nl) 1951-04-28 1951-04-28 Overdrachtstelsel van stereofonische signalen alsmede bij dit overdragstelsel toe te passen zenders en ontvangers

Publications (1)

Publication Number Publication Date
ES202426A1 true ES202426A1 (es) 1952-08-16

Family

ID=38465694

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0202426A Expired ES202426A1 (es) 1951-04-28 1952-03-11 UN SISTEMA DE TRANSMISIoN PARA SENALES ESTEREOFoNICAS, Y TRANSMISORES Y RECEPTORES PARA SU USO EN TALES SISTEMAS

Country Status (9)

Country Link
US (1) US2698379A (es)
BE (1) BE511008A (es)
CH (1) CH302327A (es)
DE (1) DE900588C (es)
ES (1) ES202426A1 (es)
FR (1) FR1062525A (es)
GB (1) GB704221A (es)
LU (1) LU31423A1 (es)
NL (1) NL90521C (es)

Families Citing this family (52)

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US2851532A (en) * 1953-04-21 1958-09-09 Murray G Crosby Multiplex communication system
US3029313A (en) * 1953-10-20 1962-04-10 Murray G Crosby Frequency modulation communication system
DE1022275B (de) * 1953-11-14 1958-01-09 Siemens Elektrogeraete Gmbh Verfahren und Einrichtung zum Empfang von ueber getrennte modulierte Traegerwellen stereophonisch uebertragenen Schallsendungen
US2951123A (en) * 1954-03-19 1960-08-30 Vito Michael Frank De Voice activated intercommunication system
US2942070A (en) * 1954-03-26 1960-06-21 Hammond Organ Co Means for binaural hearing
DE1194895B (de) * 1954-10-22 1965-06-16 Telefunken Patent Fernsehuebertragungssystem
DE1080631B (de) * 1954-12-31 1960-04-28 Philips Patentverwaltung Empfaenger zur Aufnahme stereophonischer Sendungen
BE544453A (es) * 1955-01-17
DE1010569B (de) * 1955-12-16 1957-06-19 Telefunken Gmbh Elektroakustisches UEbertragungssystem zur wahlweisen einfachen oder stereophonischen Wiedergabe, z.B. fuer Rundfunk und Tontraeger
US3069506A (en) * 1957-09-04 1962-12-18 Ibm Consonant response in narrow band transmission
US3067292A (en) * 1958-02-03 1962-12-04 Jerry B Minter Stereophonic sound transmission and reproduction
US3026378A (en) * 1958-04-30 1962-03-20 Rca Corp Stereophonic audio-frequency signal amplifier systems
US3075044A (en) * 1958-05-05 1963-01-22 Tonalyzer Inc Method and apparatus for obtaining sound
US3013125A (en) * 1958-05-16 1961-12-12 Columbia Broadcasting Syst Inc Stereophonic recording
US3231672A (en) * 1958-10-20 1966-01-25 Philco Corp Transmission system for stereophonic signals
US3109896A (en) * 1958-10-22 1963-11-05 Philco Corp Radio receiver means employing separable complementary units
US3047666A (en) * 1958-10-27 1962-07-31 Murray G Crosby Compatible stereophonic system
US3280260A (en) * 1959-02-09 1966-10-18 Philco Corp Stereophonic signal transmission and reception system
US3007005A (en) * 1959-02-12 1961-10-31 Philco Corp Transmitter for stereophonic information signals
US3022378A (en) * 1959-02-19 1962-02-20 Bell Telephone Labor Inc Monaural-binaural transmission of sound
DE1252283B (es) * 1959-03-16
NL107891C (es) * 1959-03-23
GB931880A (en) * 1959-03-23 1963-07-17 Philips Electrical Ind Ltd Improvements in or relating to circuit arrangements for the stereophonic reproduction of signals
US3089095A (en) * 1959-04-08 1963-05-07 Philco Corp Squelch circuits for stereophonic receivers
US3089096A (en) * 1959-04-09 1963-05-07 Philco Corp Stereophonic detector and matrixing circuit
US3076057A (en) * 1959-04-22 1963-01-29 Westinghouse Electric Corp Broadcast stereo receiver
US3069679A (en) * 1959-04-22 1962-12-18 Westinghouse Electric Corp Multiplex communication systems
DE1165104B (de) * 1959-06-16 1964-03-12 Fernseh Gmbh Verfahren und Anordnung zur weitgehenden Kompensation der bei der Restseitenbanduebertragung auftretenden Signalfehler
US3076873A (en) * 1959-06-25 1963-02-05 Motorola Inc Amplifier system
US3068323A (en) * 1959-10-12 1962-12-11 Gen Electric Amplitude modulation broadcast stereophonic system
US3080453A (en) * 1959-11-13 1963-03-05 Rca Corp Stereophonic sound receiver system
US3067293A (en) * 1959-11-19 1962-12-04 Philco Corp Single channel stereophonic broad-casting system
US3109066A (en) * 1959-12-15 1963-10-29 Bell Telephone Labor Inc Sound control system
US3148342A (en) * 1960-02-05 1964-09-08 Rca Corp Stereophonic signal transmission system
US3218393A (en) * 1960-02-11 1965-11-16 Leonard R Kahn Compatible stereophonic transmission and reception systems, and methods and components characterizing same
US3117186A (en) * 1960-02-17 1964-01-07 Richard W Burden Compatible stereophonic broadcast system
US3087995A (en) * 1960-04-12 1963-04-30 Westinghouse Electric Corp Multiplex communication transmitters
US3257511A (en) * 1960-04-18 1966-06-21 Zenith Radio Corp Stereo em transmission system
US3133993A (en) * 1960-04-18 1964-05-19 Zenith Radio Corp Stereo fm transmission system
US3257512A (en) * 1960-04-18 1966-06-21 Zenith Radio Corp Stereo fm transmission system
US3094587A (en) * 1960-07-05 1963-06-18 Philco Corp Improved dual channel amplifier system
US3089921A (en) * 1960-07-07 1963-05-14 Bell Telephone Labor Inc Multiplex message transmission
NL267354A (es) * 1960-07-22
US3178514A (en) * 1960-09-14 1965-04-13 Rca Corp Dynamic limiter for stereophonic broadcast receiver
US3219759A (en) * 1960-10-31 1965-11-23 Gen Electric System for deemphasizing and separating amplitude modulation components from a signal
US3099707A (en) * 1960-10-31 1963-07-30 Gen Electric Stereophonic system
US3128345A (en) * 1960-11-01 1964-04-07 Rca Corp Limiter control system for stereophonic radio receiver
DE1148268B (de) * 1961-07-24 1963-05-09 Inst Rundfunktechnik G M B H Verfahren zur Erhoehung des Geraeusch-spannungsabstandes in polymikrophonen Mehrkanaluebertragungssystemen
NL282484A (es) * 1961-08-25
US3176075A (en) * 1961-10-20 1965-03-30 Electronic Instr Co Inc Detector of multiplex stereophonic signals
NL284585A (es) * 1961-10-23
US3732375A (en) * 1969-01-24 1973-05-08 Nippon Electric Co Paired signal transmission system utilizing quadrature modulation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666158A (en) * 1925-12-31 1928-04-17 American Telephone & Telegraph System for binaural transmission of signals
BE477479A (es) * 1939-06-30

Also Published As

Publication number Publication date
BE511008A (fr) 1952-10-27
GB704221A (en) 1954-02-17
US2698379A (en) 1954-12-28
NL90521C (nl) 1959-02-18
CH302327A (de) 1954-10-15
LU31423A1 (fr) 1953-03-05
DE900588C (de) 1953-12-28
FR1062525A (fr) 1954-04-23

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