NO800322L - System til aa motta frekvensmodulerte digitale informasjonssignaler - Google Patents
System til aa motta frekvensmodulerte digitale informasjonssignaler Download PDFInfo
- Publication number
- NO800322L NO800322L NO800322A NO800322A NO800322L NO 800322 L NO800322 L NO 800322L NO 800322 A NO800322 A NO 800322A NO 800322 A NO800322 A NO 800322A NO 800322 L NO800322 L NO 800322L
- Authority
- NO
- Norway
- Prior art keywords
- demodulation
- phase
- clock
- product
- output
- Prior art date
Links
- 239000000047 product Substances 0.000 claims description 48
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 238000009795 derivation Methods 0.000 claims 1
- 230000009977 dual effect Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 25
- 238000012937 correction Methods 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Noise Elimination (AREA)
- Radio Transmission System (AREA)
- Circuits Of Receivers In General (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2905471A DE2905471B1 (de) | 1979-02-13 | 1979-02-13 | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO800322L true NO800322L (no) | 1980-08-14 |
Family
ID=6062822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO800322A NO800322L (no) | 1979-02-13 | 1980-02-07 | System til aa motta frekvensmodulerte digitale informasjonssignaler |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4304004A (fi) |
| JP (1) | JPS5639663A (fi) |
| BE (1) | BE881706R (fi) |
| DE (1) | DE2905471B1 (fi) |
| DK (1) | DK60180A (fi) |
| ES (1) | ES8100581A2 (fi) |
| FI (1) | FI800424A (fi) |
| FR (1) | FR2449374A2 (fi) |
| GB (1) | GB2043401B (fi) |
| IE (1) | IE800265L (fi) |
| IT (1) | IT1141204B (fi) |
| LU (1) | LU82155A1 (fi) |
| NL (1) | NL8000911A (fi) |
| NO (1) | NO800322L (fi) |
| SE (1) | SE8001096L (fi) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3146077C2 (de) * | 1981-11-20 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung für Funkempfänger zur Unterdrückung von durch Mehrwegeausbreitung bedingten Empfangsstörungen |
| FR2538645B1 (fr) * | 1982-12-28 | 1986-04-11 | Thomson Csf | Procede et dispositif d'interpolation de la parole dans un systeme de transmission de parole numerisee |
| JPS59140298A (ja) * | 1983-01-31 | 1984-08-11 | N D C Kk | 複層軸受 |
| FR2547138B1 (fr) * | 1983-06-01 | 1985-07-12 | Trt Telecom Radio Electr | Dispositif de silencieux pour recepteur radio am/fm |
| DE3446529A1 (de) * | 1984-12-20 | 1986-07-03 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Verfahren zur stoerverminderung in einer rundfunk-empfangsanlage |
| JPS61184933A (ja) * | 1985-02-12 | 1986-08-18 | Clarion Co Ltd | パルス性雑音除去用信号補償ゲ−ト回路 |
| US4660192A (en) * | 1985-04-11 | 1987-04-21 | Pomatto Sr Robert P | Simultaneous AM and FM transmitter and receiver |
| JPS62175025A (ja) * | 1986-01-25 | 1987-07-31 | Fujitsu Ten Ltd | 雑音除去装置 |
| US5491716A (en) * | 1990-06-18 | 1996-02-13 | The United States Of America As Represented By The Secretary Of The Navy | Weight-value controlled adaptive processor for spread spectrum receiver |
| US7400904B2 (en) * | 2004-12-03 | 2008-07-15 | Itron, Inc. | Dual mode AM-FM receiver with I-Q decoding, such as for utility data collection |
| JP5355936B2 (ja) * | 2007-06-28 | 2013-11-27 | 日本信号株式会社 | リーダライタ、及び物品仕分システム |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL276220A (fi) * | 1961-03-21 | |||
| GB1237517A (en) * | 1970-02-05 | 1971-06-30 | Pye Ltd | Muting arrangement for a communication system |
| US3711777A (en) * | 1971-09-16 | 1973-01-16 | Ncr | Latching and control circuit for carrier detection |
| US3895187A (en) * | 1972-01-06 | 1975-07-15 | Gen Electric Co Ltd | Receivers for plural frequency signalling systems |
| US3778727A (en) * | 1972-05-11 | 1973-12-11 | Singer Co | Crystal controlled frequency discriminator |
| DE2628997C3 (de) * | 1976-06-28 | 1978-11-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| CH619087A5 (en) * | 1976-06-28 | 1980-08-29 | Siemens Ag | Device for receiving frequency-modulated digital communications signals |
| DE2714439C3 (de) * | 1977-03-31 | 1980-08-14 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
-
1979
- 1979-02-13 DE DE2905471A patent/DE2905471B1/de active Granted
-
1980
- 1980-01-30 US US06/116,961 patent/US4304004A/en not_active Expired - Lifetime
- 1980-02-04 FR FR8002361A patent/FR2449374A2/fr active Granted
- 1980-02-07 NO NO800322A patent/NO800322L/no unknown
- 1980-02-08 IT IT19791/80A patent/IT1141204B/it active
- 1980-02-12 GB GB8004640A patent/GB2043401B/en not_active Expired
- 1980-02-12 LU LU82155A patent/LU82155A1/de unknown
- 1980-02-12 SE SE8001096A patent/SE8001096L/xx unknown
- 1980-02-12 IE IE800265A patent/IE800265L/xx unknown
- 1980-02-12 FI FI800424A patent/FI800424A/fi not_active Application Discontinuation
- 1980-02-12 ES ES488489A patent/ES8100581A2/es not_active Expired
- 1980-02-12 DK DK60180A patent/DK60180A/da unknown
- 1980-02-13 NL NL8000911A patent/NL8000911A/nl not_active Application Discontinuation
- 1980-02-13 JP JP1557680A patent/JPS5639663A/ja active Pending
- 1980-02-13 BE BE0/199388A patent/BE881706R/fr active
Also Published As
| Publication number | Publication date |
|---|---|
| SE8001096L (sv) | 1980-08-14 |
| LU82155A1 (de) | 1980-09-24 |
| ES488489A0 (es) | 1980-11-01 |
| FR2449374B2 (fi) | 1984-02-24 |
| FI800424A (fi) | 1980-08-14 |
| GB2043401B (en) | 1983-03-23 |
| FR2449374A2 (fr) | 1980-09-12 |
| DE2905471C2 (fi) | 1980-10-16 |
| JPS5639663A (en) | 1981-04-15 |
| IT1141204B (it) | 1986-10-01 |
| IE800265L (en) | 1980-08-13 |
| DE2905471B1 (de) | 1980-02-21 |
| DK60180A (da) | 1980-08-14 |
| GB2043401A (en) | 1980-10-01 |
| NL8000911A (nl) | 1980-08-15 |
| US4304004A (en) | 1981-12-01 |
| ES8100581A2 (es) | 1980-11-01 |
| IT8019791A0 (it) | 1980-02-08 |
| BE881706R (fr) | 1980-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3289082A (en) | Phase shift data transmission system with phase-coherent data recovery | |
| US4347616A (en) | Digital multi-level multi-phase modulation communication system | |
| NO800322L (no) | System til aa motta frekvensmodulerte digitale informasjonssignaler | |
| US3526837A (en) | Error-correcting information transmission systems | |
| US4052670A (en) | Space diversity system in pcm-tdma telecommunication system using stationary communication satellite | |
| CN1012411B (zh) | 信道转换系统 | |
| US3699463A (en) | Error reduction in communication systems | |
| US3440548A (en) | Timing recovery circuit using time derivative of data signals | |
| SE440431B (sv) | Radioinformationsoverforingssystem | |
| US3141066A (en) | Double side band, suppressed-carrier, phase shift type telegraph system | |
| US3222454A (en) | Digital comparison circuits | |
| US3001176A (en) | Message selection in electrical communication or control systems | |
| US3209261A (en) | Transmission systems | |
| US5056055A (en) | Coherent surface acoustic wave unique word detector | |
| US4327356A (en) | Arrangement for monitoring the performance of a digital transmission system | |
| US3559083A (en) | Digital demodulator for frequency shift keying systems | |
| JP2770964B2 (ja) | ロランｃ航行信号伝送などにメッセージ通信を乗せる際に、航行誤差及び空間波航行位置誤差を減じるための方法及びシステム | |
| NO149160B (no) | Fremgangsmaate for fasesynkronisering i et synkront datatransmisjonssystem og anordning for utfoerelse av fremgangsmaaten | |
| US3691387A (en) | Error-correcting optical pcm detector | |
| US3491202A (en) | Bi-polar phase detector and corrector for split phase pcm data signals | |
| US4188503A (en) | Digital data communications system | |
| SU1479936A1 (ru) | Способ обнаружени столкновений в линии цифровой св зи с коллективным доступом и адаптер дл его осуществлени | |
| JPS6328377B2 (fi) | ||
| JPS6010838A (ja) | 送受信ネツトワ−クシステム | |
| NO772272L (no) | System til } motta frekvensmodulerte digitale informasjonssignaler |