ES457535A1 - Compatible am stereo broadcast system including transmitter and receiver - Google Patents

Compatible am stereo broadcast system including transmitter and receiver

Info

Publication number
ES457535A1
ES457535A1 ES457535A ES457535A ES457535A1 ES 457535 A1 ES457535 A1 ES 457535A1 ES 457535 A ES457535 A ES 457535A ES 457535 A ES457535 A ES 457535A ES 457535 A1 ES457535 A1 ES 457535A1
Authority
ES
Spain
Prior art keywords
carrier wave
signals
receiver
stereophonic
compatible
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
ES457535A
Other languages
Spanish (es)
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of ES457535A1 publication Critical patent/ES457535A1/en
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
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
    • H04H20/49—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for AM stereophonic broadcast systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Selective Calling Equipment (AREA)

Abstract

Improvements in stereophonic emission and reception systems for am with two signals in a single carrier wave, where the signal information corresponding to the first and second signals of monaural and stereophonic information, characterized in that the system is provided with a transmitter to generate a single carrier wave modulated in amplitude according to the algebraic sum of the first and second information signals and modulated in phase according to the phase differences between them, the carrier wave being fully compatible for direct reception and monaural reproduction without substantial distortion and a receiver to receive the carrier wave and remodulate the first and second information signals in quadrature for the stereophonic result. (Machine-translation by Google Translate, not legally binding)
ES457535A 1976-04-07 1977-04-05 Compatible am stereo broadcast system including transmitter and receiver Expired ES457535A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67470376A 1976-04-07 1976-04-07

Publications (1)

Publication Number Publication Date
ES457535A1 true ES457535A1 (en) 1978-03-01

Family

ID=24707610

Family Applications (1)

Application Number Title Priority Date Filing Date
ES457535A Expired ES457535A1 (en) 1976-04-07 1977-04-05 Compatible am stereo broadcast system including transmitter and receiver

Country Status (18)

Country Link
JP (3) JPS6034299B2 (en)
AR (1) AR215622A1 (en)
BR (1) BR7702238A (en)
CA (1) CA1095992A (en)
DE (1) DE2715741C2 (en)
ES (1) ES457535A1 (en)
FR (1) FR2353182A1 (en)
GB (1) GB1565405A (en)
HK (1) HK1281A (en)
IL (1) IL51777A (en)
IT (1) IT1078165B (en)
MX (1) MX144185A (en)
MY (1) MY8100295A (en)
NL (1) NL178831C (en)
NO (1) NO156470C (en)
PT (1) PT66413B (en)
SE (1) SE426639B (en)
ZA (1) ZA772160B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL180062C (en) * 1977-09-27 Motorola Inc RADIO RECEIVER.
US4170716A (en) * 1977-10-14 1979-10-09 Motorola, Inc. AM stereo receiver with correction limiting
JPS5829903B2 (en) * 1977-11-09 1983-06-25 山水電気株式会社 Amplitude modulation stereo receiver
US4172966A (en) * 1978-02-23 1979-10-30 Motorola, Inc. AM stereophonic receiver
US4589127A (en) * 1978-06-05 1986-05-13 Hazeltine Corporation Independent sideband AM multiphonic system
US4220818A (en) * 1979-05-21 1980-09-02 Kahn Leonard R AM Stereo transmitter
JPS6029251Y2 (en) * 1979-11-29 1985-09-04 ソニー株式会社 AM stereo receiver
US4371747A (en) * 1980-03-24 1983-02-01 Motorola, Inc. AM Stereophonic decoder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271952A (en) * 1958-11-14 1961-09-22 Carrier wave teletransmission method and device
US3007005A (en) * 1959-02-12 1961-10-31 Philco Corp Transmitter for stereophonic information signals
FR1250343A (en) * 1959-04-08 1961-01-06 Philco Corp Silent adjustment circuit for stereo signal receivers
US3068475A (en) * 1959-10-07 1962-12-11 Rca Corp Stereophonic sound signalling system
US3067293A (en) * 1959-11-19 1962-12-04 Philco Corp Single channel stereophonic broad-casting system
FR1279867A (en) * 1960-02-11 1961-12-22 Method and installation for stereo transmission and reception
US3218393A (en) * 1960-02-11 1965-11-16 Leonard R Kahn Compatible stereophonic transmission and reception systems, and methods and components characterizing same

Also Published As

Publication number Publication date
IT1078165B (en) 1985-05-08
NO156470C (en) 1987-09-23
SE7703666L (en) 1977-10-08
JPS58184841A (en) 1983-10-28
PT66413B (en) 1978-09-15
HK1281A (en) 1981-01-23
GB1565405A (en) 1980-04-23
FR2353182B1 (en) 1984-10-05
PT66413A (en) 1977-05-01
JPS6237580B2 (en) 1987-08-13
NL7703912A (en) 1977-10-11
JPS6256705B2 (en) 1987-11-26
ZA772160B (en) 1978-03-29
MY8100295A (en) 1981-12-31
NO156470B (en) 1987-06-15
NL178831C (en) 1986-05-16
DE2715741A1 (en) 1977-10-13
JPS52141502A (en) 1977-11-25
JPS6034299B2 (en) 1985-08-08
JPS58184842A (en) 1983-10-28
IL51777A0 (en) 1977-05-31
FR2353182A1 (en) 1977-12-23
AR215622A1 (en) 1979-10-31
NO771139L (en) 1977-10-10
MX144185A (en) 1981-09-09
CA1095992A (en) 1981-02-17
NL178831B (en) 1985-12-16
SE426639B (en) 1983-01-31
BR7702238A (en) 1978-01-17
IL51777A (en) 1978-12-17
DE2715741C2 (en) 1986-09-11

Similar Documents

Publication Publication Date Title
US4688255A (en) Compatible AM broadcast/data transmisison system
US3679832A (en) Three-channel fm stereo transmission
KR840008240A (en) FM stereo radio broadcasting system
GB1335738A (en) Compatible four channel fm system
US3787629A (en) Apparatus for distinguishing between various fm broadcast multiplex transmissions
ES457535A1 (en) Compatible am stereo broadcast system including transmitter and receiver
US4079204A (en) AM Stereophonic transmission system
GB540185A (en) System of transmission of electrical waves
SE7904861L (en) AMPLIT MODULED MULTI-CHANNEL SYSTEM WITH INDEPENDENT SIDE BAND
SE8200395L (en) FM ROUND RADIO SYSTEM WITH SENDER IDENTIFICATION
GB1369813A (en) Reproduction of sound
ES8306950A1 (en) Arrangement for receiving tv-signals having left and right stereo sound signals.
GB1534418A (en) Am stereophonic transmission system
US3360609A (en) Fm multiplex system for transmitting radio signals from a stereophonic phonograph
GB1391289A (en) Four channel stereophonic system
ES467246A1 (en) Radio broadcasting system with code signaling
GB1379771A (en) Decoder for quadruphonic sound
JPS55136740A (en) Receiver for multiplex signal
US4056685A (en) Signal distributing and muting system for multiple channel FM stereo system
GB1403343A (en) Signal synthesizing system adaptable for discrete four-channel sound reproducing system and matrix four-chennel sound reproducing system
KR830004735A (en) Compatible AM Stereo Broadcasting System
GB1505358A (en) Stereo demodulator circuit
GB1481305A (en) Information transmitting and receiving systems
JPS57129552A (en) Am stereo receiver
GB931421A (en) Improvements relating to stereophonic sound transmission systems