JPH0370944B2 - - Google Patents
Info
- Publication number
- JPH0370944B2 JPH0370944B2 JP59207808A JP20780884A JPH0370944B2 JP H0370944 B2 JPH0370944 B2 JP H0370944B2 JP 59207808 A JP59207808 A JP 59207808A JP 20780884 A JP20780884 A JP 20780884A JP H0370944 B2 JPH0370944 B2 JP H0370944B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pair
- stereo
- reference signals
- phase
- 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
- 238000001514 detection method Methods 0.000 claims description 19
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000005684 electric field Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
- H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stereo-Broadcasting Methods (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59207808A JPS6184933A (ja) | 1984-10-03 | 1984-10-03 | Ａｍステレオ復調装置 |
| AU48256/85A AU580633B2 (en) | 1984-10-03 | 1985-10-03 | Am stereo demodulator |
| US06/783,506 US4648114A (en) | 1984-10-03 | 1985-10-03 | AM stereo demodulator |
| CA000492161A CA1244101A (en) | 1984-10-03 | 1985-10-03 | Am stereo demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59207808A JPS6184933A (ja) | 1984-10-03 | 1984-10-03 | Ａｍステレオ復調装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6184933A JPS6184933A (ja) | 1986-04-30 |
| JPH0370944B2 true JPH0370944B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-11-11 |
Family
ID=16545839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59207808A Granted JPS6184933A (ja) | 1984-10-03 | 1984-10-03 | Ａｍステレオ復調装置 |
Country Status (4)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6184933A (ja) * | 1984-10-03 | 1986-04-30 | Pioneer Electronic Corp | Ａｍステレオ復調装置 |
| US4887297A (en) * | 1986-12-01 | 1989-12-12 | Hazeltine Corporation | Apparatus for processing stereo signals and universal AM stereo receivers incorporating such apparatus |
| US5668923A (en) * | 1995-02-28 | 1997-09-16 | Motorola, Inc. | Voice messaging system and method making efficient use of orthogonal modulation components |
| US7127008B2 (en) | 2003-02-24 | 2006-10-24 | Ibiquity Digital Corporation | Coherent AM demodulator using a weighted LSB/USB sum for interference mitigation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4232189A (en) * | 1977-08-31 | 1980-11-04 | Harris Corporation | AM Stereo receivers |
| JPS5575359A (en) * | 1978-12-01 | 1980-06-06 | Pioneer Electronic Corp | Phase control unit |
| US4349696A (en) * | 1979-02-05 | 1982-09-14 | Hitachi, Ltd. | AM Stereophonic demodulator circuit for amplitude/angle modulation system |
| JPS6029251Y2 (ja) * | 1979-11-29 | 1985-09-04 | ソニー株式会社 | Ａｍステレオ受信機 |
| AU535856B2 (en) * | 1980-03-24 | 1984-04-05 | Motorola, Inc. | Am stereophonic decoder |
| US4375580A (en) * | 1980-10-27 | 1983-03-01 | National Semiconductor Corporation | AM Stereo receiver separation control |
| US4536885A (en) * | 1983-03-03 | 1985-08-20 | Hazeltine Corporation | Distortion correcting AM stereo receiver with non-flat AGC |
| JPS6184933A (ja) * | 1984-10-03 | 1986-04-30 | Pioneer Electronic Corp | Ａｍステレオ復調装置 |
-
1984
- 1984-10-03 JP JP59207808A patent/JPS6184933A/ja active Granted
-
1985
- 1985-10-03 AU AU48256/85A patent/AU580633B2/en not_active Ceased
- 1985-10-03 CA CA000492161A patent/CA1244101A/en not_active Expired
- 1985-10-03 US US06/783,506 patent/US4648114A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU580633B2 (en) | 1989-01-19 |
| JPS6184933A (ja) | 1986-04-30 |
| AU4825685A (en) | 1986-04-10 |
| CA1244101A (en) | 1988-11-01 |
| US4648114A (en) | 1987-03-03 |