ES457535A1 - Compatible am stereo broadcast system including transmitter and receiver - Google Patents
Compatible am stereo broadcast system including transmitter and receiverInfo
- 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
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)
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)
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)
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 |
US3218393A (en) * | 1960-02-11 | 1965-11-16 | Leonard R Kahn | Compatible stereophonic transmission and reception systems, and methods and components characterizing same |
FR1279867A (en) * | 1960-02-11 | 1961-12-22 | Method and installation for stereo transmission and reception |
-
1977
- 1977-03-29 GB GB13174/77A patent/GB1565405A/en not_active Expired
- 1977-03-29 IL IL51777A patent/IL51777A/en unknown
- 1977-03-29 CA CA274,979A patent/CA1095992A/en not_active Expired
- 1977-03-30 SE SE7703666A patent/SE426639B/en not_active IP Right Cessation
- 1977-03-31 NO NO771139A patent/NO156470C/en unknown
- 1977-04-05 ES ES457535A patent/ES457535A1/en not_active Expired
- 1977-04-05 AR AR267125A patent/AR215622A1/en active
- 1977-04-06 IT IT48860/77A patent/IT1078165B/en active
- 1977-04-06 MX MX168677A patent/MX144185A/en unknown
- 1977-04-06 BR BR7702238A patent/BR7702238A/en unknown
- 1977-04-07 JP JP52039085A patent/JPS6034299B2/en not_active Expired
- 1977-04-07 PT PT66413A patent/PT66413B/en unknown
- 1977-04-07 DE DE2715741A patent/DE2715741C2/en not_active Expired
- 1977-04-07 FR FR7710631A patent/FR2353182A1/en active Granted
- 1977-04-07 ZA ZA00772160A patent/ZA772160B/en unknown
- 1977-04-07 NL NLAANVRAGE7703912,A patent/NL178831C/en not_active IP Right Cessation
-
1981
- 1981-01-15 HK HK12/81A patent/HK1281A/en unknown
- 1981-12-30 MY MY295/81A patent/MY8100295A/en unknown
-
1983
- 1983-03-07 JP JP58036072A patent/JPS58184842A/en active Granted
- 1983-03-07 JP JP58036071A patent/JPS58184841A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
NL178831C (en) | 1986-05-16 |
CA1095992A (en) | 1981-02-17 |
JPS6237580B2 (en) | 1987-08-13 |
FR2353182A1 (en) | 1977-12-23 |
SE7703666L (en) | 1977-10-08 |
NO771139L (en) | 1977-10-10 |
DE2715741C2 (en) | 1986-09-11 |
JPS6256705B2 (en) | 1987-11-26 |
FR2353182B1 (en) | 1984-10-05 |
NL7703912A (en) | 1977-10-11 |
HK1281A (en) | 1981-01-23 |
ZA772160B (en) | 1978-03-29 |
JPS58184841A (en) | 1983-10-28 |
JPS52141502A (en) | 1977-11-25 |
IL51777A (en) | 1978-12-17 |
DE2715741A1 (en) | 1977-10-13 |
IL51777A0 (en) | 1977-05-31 |
SE426639B (en) | 1983-01-31 |
JPS58184842A (en) | 1983-10-28 |
NL178831B (en) | 1985-12-16 |
BR7702238A (en) | 1978-01-17 |
PT66413B (en) | 1978-09-15 |
JPS6034299B2 (en) | 1985-08-08 |
NO156470C (en) | 1987-09-23 |
MY8100295A (en) | 1981-12-31 |
IT1078165B (en) | 1985-05-08 |
MX144185A (en) | 1981-09-09 |
GB1565405A (en) | 1980-04-23 |
NO156470B (en) | 1987-06-15 |
PT66413A (en) | 1977-05-01 |
AR215622A1 (en) | 1979-10-31 |
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