NL7315308A - - Google Patents
Info
- Publication number
- NL7315308A NL7315308A NL7315308A NL7315308A NL7315308A NL 7315308 A NL7315308 A NL 7315308A NL 7315308 A NL7315308 A NL 7315308A NL 7315308 A NL7315308 A NL 7315308A NL 7315308 A NL7315308 A NL 7315308A
- Authority
- NL
- Netherlands
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
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18231871A | 1971-09-21 | 1971-09-21 | |
US05/311,195 US3934092A (en) | 1971-09-21 | 1972-12-01 | Four channel stereophonic broadcasting system |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7315308A true NL7315308A (xx) | 1974-06-05 |
Family
ID=26877984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7315308A NL7315308A (xx) | 1971-09-21 | 1973-11-08 |
Country Status (2)
Country | Link |
---|---|
US (1) | US3934092A (xx) |
NL (1) | NL7315308A (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027107A (en) * | 1973-09-28 | 1977-05-31 | Zenith Radio Corporation | Multiple channel FM stereo system |
JPS589615B2 (ja) * | 1974-12-16 | 1983-02-22 | ソニー株式会社 | Fm ステレオフクチヨウホウシキ |
JPS5847108B2 (ja) * | 1975-11-18 | 1983-10-20 | ソニー株式会社 | ステレオ復調装置の同期検波回路 |
US4115663A (en) * | 1976-10-04 | 1978-09-19 | Zenith Radio Corporation | Doubly balanced demodulator for multiple channel FM stereo system |
US4056685A (en) * | 1976-12-29 | 1977-11-01 | Zenith Radio Corporation | Signal distributing and muting system for multiple channel FM stereo system |
FR2568437B1 (fr) * | 1984-07-27 | 1988-10-14 | Isi Beller | Appareil convertisseur audiofrequences, installation pour le traitement de sujets atteints de troubles audio-phonatoires et auditivo-verbaux comprenant un tel appareil et procede mettant en oeuvre une telle installation |
US5005201A (en) * | 1989-02-14 | 1991-04-02 | Rca Licensing Corporation | Apparatus and method thereof for improvement of stereophonic sound |
FR2686442B1 (fr) * | 1992-01-21 | 1994-04-29 | Beller Isi | Appareil convertisseur audiofrequence perfectionne, installation pour le traitement de sujets comprenant un tel appareil et procede mettant en óoeuvre une telle installation. |
JP3840468B2 (ja) * | 2003-09-29 | 2006-11-01 | 松下電器産業株式会社 | Pll周波数シンセサイザ |
US7272375B2 (en) | 2004-06-30 | 2007-09-18 | Silicon Laboratories Inc. | Integrated low-IF terrestrial audio broadcast receiver and associated method |
US8144878B2 (en) | 2006-03-06 | 2012-03-27 | Mediatek Inc. | FM receiver and pilot detector thereof, and method for determining a type of a processed signal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083337A (en) * | 1959-09-25 | 1963-03-26 | Western Union Telegraph Co | Vestigial sideband transmission |
GB1061907A (en) * | 1962-11-30 | 1967-03-15 | Emi Ltd | Improvements relating to vestigial sideband transmitters |
US3549811A (en) * | 1969-10-07 | 1970-12-22 | Einar Borresen | Radio transmission system |
US3708623A (en) * | 1970-04-29 | 1973-01-02 | Quadracast Syst Inc | Compatible four channel fm system |
US3679832A (en) * | 1971-03-23 | 1972-07-25 | Bell Telephone Labor Inc | Three-channel fm stereo transmission |
-
1972
- 1972-12-01 US US05/311,195 patent/US3934092A/en not_active Expired - Lifetime
-
1973
- 1973-11-08 NL NL7315308A patent/NL7315308A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US3934092A (en) | 1976-01-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BV | The patent application has lapsed |