JPS50127501A - - Google Patents
Info
- Publication number
- JPS50127501A JPS50127501A JP49013436A JP1343674A JPS50127501A JP S50127501 A JPS50127501 A JP S50127501A JP 49013436 A JP49013436 A JP 49013436A JP 1343674 A JP1343674 A JP 1343674A JP S50127501 A JPS50127501 A JP S50127501A
- Authority
- JP
- Japan
- 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.)
- Granted
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)
- Stereophonic System (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1343674A JPS5437764B2 (en:Method) | 1974-01-31 | 1974-01-31 | |
| US05/544,903 US3965302A (en) | 1974-01-31 | 1975-01-28 | Stereo signal demodulator in a four-channel stereo broadcast receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1343674A JPS5437764B2 (en:Method) | 1974-01-31 | 1974-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50127501A true JPS50127501A (en:Method) | 1975-10-07 |
| JPS5437764B2 JPS5437764B2 (en:Method) | 1979-11-16 |
Family
ID=11833068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1343674A Expired JPS5437764B2 (en:Method) | 1974-01-31 | 1974-01-31 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3965302A (en:Method) |
| JP (1) | JPS5437764B2 (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4061882A (en) * | 1976-08-13 | 1977-12-06 | Quadracast Systems, Inc. | Quadrature multiplying four-channel demodulator |
| US4056685A (en) * | 1976-12-29 | 1977-11-01 | Zenith Radio Corporation | Signal distributing and muting system for multiple channel FM stereo system |
| JPS5854691B2 (ja) * | 1979-02-13 | 1983-12-06 | 株式会社日立製作所 | ステレオ復調方式 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033724B1 (en:Method) * | 1970-11-09 | 1975-11-01 | ||
| US3881063A (en) * | 1972-01-20 | 1975-04-29 | Victor Company Of Japan | System for selectively receiving either 4-channel or- 2-channel stereophonic broadcastings |
| US3814858A (en) * | 1972-04-27 | 1974-06-04 | Motorola Inc | Multiplex system employing multiple quadrature subcarriers |
-
1974
- 1974-01-31 JP JP1343674A patent/JPS5437764B2/ja not_active Expired
-
1975
- 1975-01-28 US US05/544,903 patent/US3965302A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5437764B2 (en:Method) | 1979-11-16 |
| US3965302A (en) | 1976-06-22 |