DE2248769B2 - Demodulatorschaltung für winkelmodulierte elektrische Schwingungen - Google Patents
Demodulatorschaltung für winkelmodulierte elektrische SchwingungenInfo
- Publication number
- DE2248769B2 DE2248769B2 DE2248769A DE2248769A DE2248769B2 DE 2248769 B2 DE2248769 B2 DE 2248769B2 DE 2248769 A DE2248769 A DE 2248769A DE 2248769 A DE2248769 A DE 2248769A DE 2248769 B2 DE2248769 B2 DE 2248769B2
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- phase
- voltage
- frequency
- signal
- 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.)
- Ceased
Links
- 230000010355 oscillation Effects 0.000 title claims description 23
- 230000007423 decrease Effects 0.000 claims description 22
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 19
- 230000005669 field effect Effects 0.000 description 18
- 230000008859 change Effects 0.000 description 15
- 239000003990 capacitor Substances 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- 235000013929 Psidium pyriferum Nutrition 0.000 description 1
- 244000236580 Psidium pyriferum Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 102200080066 rs122460151 Human genes 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
- H03D3/244—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop combined with means for obtaining automatic gain control
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46077531A JPS4948124B2 (cg-RX-API-DMAC10.html) | 1971-10-05 | 1971-10-05 | |
| JP47016186A JPS5115966B2 (cg-RX-API-DMAC10.html) | 1972-02-16 | 1972-02-16 | |
| JP1810972A JPS5535039B2 (cg-RX-API-DMAC10.html) | 1972-02-23 | 1972-02-23 | |
| JP47022098A JPS5116121B2 (cg-RX-API-DMAC10.html) | 1972-03-03 | 1972-03-03 | |
| JP47033842A JPS5221882B2 (cg-RX-API-DMAC10.html) | 1972-04-06 | 1972-04-06 | |
| JP47040677A JPS5221883B2 (cg-RX-API-DMAC10.html) | 1972-04-22 | 1972-04-22 | |
| JP47051495A JPS5117403B2 (cg-RX-API-DMAC10.html) | 1972-05-24 | 1972-05-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2248769A1 DE2248769A1 (de) | 1973-04-19 |
| DE2248769B2 true DE2248769B2 (de) | 1975-03-13 |
Family
ID=27563739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2248769A Ceased DE2248769B2 (de) | 1971-10-05 | 1972-10-05 | Demodulatorschaltung für winkelmodulierte elektrische Schwingungen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3983500A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1002616A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2248769B2 (cg-RX-API-DMAC10.html) |
| DK (1) | DK137153B (cg-RX-API-DMAC10.html) |
| GB (1) | GB1410381A (cg-RX-API-DMAC10.html) |
| NL (1) | NL175870C (cg-RX-API-DMAC10.html) |
| SE (1) | SE384431B (cg-RX-API-DMAC10.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107478A (en) * | 1971-10-05 | 1978-08-15 | Victor Company Of Japan, Limited | Angle modulated wave demodulation system |
| US4096360A (en) * | 1975-09-27 | 1978-06-20 | Victor Company Of Japan, Ltd. | Multichannel record disc reproducing system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209271A (en) * | 1961-08-17 | 1965-09-28 | Radiation Inc | Phase-locked loops |
| US3371281A (en) * | 1963-10-24 | 1968-02-27 | Gen Electric | Frequency modulation receiver combining frequency feedback and synchronous detection |
| NL154897B (nl) * | 1969-06-07 | 1977-10-17 | Philips Nv | Ontvanger met n-waardige fasedemodulator. |
| CA938560A (en) * | 1969-11-28 | 1973-12-18 | Victor Company Of Japan | System for recording and/or reproducing four channel signals on a record disc |
-
1972
- 1972-10-02 DK DK487572AA patent/DK137153B/da not_active IP Right Cessation
- 1972-10-03 GB GB4553872A patent/GB1410381A/en not_active Expired
- 1972-10-03 CA CA153,125A patent/CA1002616A/en not_active Expired
- 1972-10-04 SE SE7212781A patent/SE384431B/xx unknown
- 1972-10-05 DE DE2248769A patent/DE2248769B2/de not_active Ceased
- 1972-10-05 NL NLAANVRAGE7213487,A patent/NL175870C/xx not_active IP Right Cessation
-
1974
- 1974-09-03 US US05/502,531 patent/US3983500A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL175870C (nl) | 1985-01-02 |
| SE384431B (sv) | 1976-05-03 |
| GB1410381A (en) | 1975-10-15 |
| DK137153B (da) | 1978-01-23 |
| NL175870B (nl) | 1984-08-01 |
| DK137153C (cg-RX-API-DMAC10.html) | 1978-06-26 |
| DE2248769A1 (de) | 1973-04-19 |
| US3983500A (en) | 1976-09-28 |
| NL7213487A (cg-RX-API-DMAC10.html) | 1973-04-09 |
| CA1002616A (en) | 1976-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1487276B2 (de) | Schaltungsanordnung und Verfahren zur Störgeräuschverminderung bei der Signalübertragung, -aufzeichnung oder -wiedergabe | |
| DE2035479B2 (de) | Signalkompressor und/oder -expander | |
| DE2817387A1 (de) | Schaltungsanordnung zur entstoerung einer signalquelle entnommener frequenzmodulierter signale | |
| DE3134737C2 (cg-RX-API-DMAC10.html) | ||
| DE2629404A1 (de) | Automatische geraeuschsperre zur verarbeitung von demodulierten fm-signalen | |
| DE2822837C2 (de) | Schaltung zur dynamischen Unterdrückung kleiner Wechselsignalamplituden | |
| DE2222531C2 (de) | Rauschunterdrückungskompander | |
| DE4309518A1 (de) | Schaltungsanordnung zur Ableitung mindestens eines von der Qualität eines empfangenen Signals abhängigen Qualitätssignals | |
| DE3025627A1 (de) | Vorrichtung und system zur aufzeichnung von tonfrequenzsignalen auf einem magnetischen aufzeichnungstraeger | |
| DE2427233B2 (de) | Rauschunterdrückungseinrichtung | |
| DE3223249C2 (cg-RX-API-DMAC10.html) | ||
| DE2525074A1 (de) | Schalteinrichtung fuer signale | |
| DE2230755C3 (de) | Rauschunterdrückungsschaltung für einen Empfänger | |
| DE2248769B2 (de) | Demodulatorschaltung für winkelmodulierte elektrische Schwingungen | |
| DE4323015C2 (de) | Stereophoner Rundfunkempfänger | |
| DE3818750A1 (de) | Fm-empfangsteil | |
| EP0653850B1 (de) | Schaltungsanordnung zur Erkennung von Nachbarkanalstörungen | |
| DE2411107C3 (cg-RX-API-DMAC10.html) | ||
| DE3022781A1 (de) | Farbvideosignal-aufzeichnungs- und wiedergabeeinrichtung | |
| DE3514065C2 (cg-RX-API-DMAC10.html) | ||
| DE3121600A1 (de) | Videorecorder mit verbesserter aufzeichnung des tonsignals | |
| DE2350316C3 (de) | Demodulator zur Demodulation winkelmodulierter elektrischer Schwingungen | |
| DE3336234C2 (cg-RX-API-DMAC10.html) | ||
| EP0206369B1 (de) | Automatische FM-Seitenband-Pegelregelung für Video-Recorder | |
| DE2934956C2 (de) | Rauschunterdrückungssystem für einen Radioempfänger zur Unterdrückung von Impulsrauschen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8235 | Patent refused |