DE2950485A1 - Fm-empfaenger - Google Patents
Fm-empfaengerInfo
- Publication number
- DE2950485A1 DE2950485A1 DE19792950485 DE2950485A DE2950485A1 DE 2950485 A1 DE2950485 A1 DE 2950485A1 DE 19792950485 DE19792950485 DE 19792950485 DE 2950485 A DE2950485 A DE 2950485A DE 2950485 A1 DE2950485 A1 DE 2950485A1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- signals
- level
- signal
- khz
- 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.)
- Withdrawn
Links
- 230000007423 decrease Effects 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000543 intermediate Substances 0.000 description 33
- 239000004065 semiconductor Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 101100189378 Caenorhabditis elegans pat-3 gene Proteins 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
- H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
- H04B1/1669—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal
- H04B1/1676—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal of the sum or difference signal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP823779A JPS55100763A (en) | 1979-01-29 | 1979-01-29 | Fm multiplex demodulator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2950485A1 true DE2950485A1 (de) | 1980-08-07 |
Family
ID=11687534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792950485 Withdrawn DE2950485A1 (de) | 1979-01-29 | 1979-12-14 | Fm-empfaenger |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS55100763A (ja) |
| DE (1) | DE2950485A1 (ja) |
| GB (1) | GB2040145A (ja) |
| IT (1) | IT1149803B (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646346A (en) * | 1979-09-21 | 1981-04-27 | Hitachi Ltd | Control system for fm stereo demodulation |
| KR960008328B1 (ko) * | 1987-02-20 | 1996-06-24 | 상요덴기 가부시기가이샤 | 스테레오 방송수신기 |
-
1979
- 1979-01-29 JP JP823779A patent/JPS55100763A/ja active Pending
- 1979-12-05 GB GB7941976A patent/GB2040145A/en not_active Withdrawn
- 1979-12-14 DE DE19792950485 patent/DE2950485A1/de not_active Withdrawn
-
1980
- 1980-01-28 IT IT19515/80A patent/IT1149803B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1149803B (it) | 1986-12-10 |
| JPS55100763A (en) | 1980-07-31 |
| GB2040145A (en) | 1980-08-20 |
| IT8019515A0 (it) | 1980-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAM | Search report available | ||
| OC | Search report available | ||
| 8141 | Disposal/no request for examination |