CA1095991A - Frequency-modulated data communications receivers - Google Patents
Frequency-modulated data communications receiversInfo
- Publication number
- CA1095991A CA1095991A CA279,691A CA279691A CA1095991A CA 1095991 A CA1095991 A CA 1095991A CA 279691 A CA279691 A CA 279691A CA 1095991 A CA1095991 A CA 1095991A
- Authority
- CA
- Canada
- Prior art keywords
- frequency
- demodulator
- amplitude
- output
- 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.)
- Expired
Links
- 230000003068 static effect Effects 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 11
- 230000002441 reversible effect Effects 0.000 claims abstract description 3
- 230000008033 biological extinction Effects 0.000 description 49
- 230000006870 function Effects 0.000 description 14
- 230000008859 change Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 10
- 230000000875 corresponding effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 206010034719 Personality change Diseases 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 238000012937 correction Methods 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000000543 intermediate Substances 0.000 description 6
- 238000007792 addition Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 102100026933 Myelin-associated neurite-outgrowth inhibitor Human genes 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2628997A DE2628997C3 (de) | 1976-06-28 | 1976-06-28 | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| DEP2628997.4 | 1976-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1095991A true CA1095991A (en) | 1981-02-17 |
Family
ID=5981656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA279,691A Expired CA1095991A (en) | 1976-06-28 | 1977-06-02 | Frequency-modulated data communications receivers |
Country Status (14)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2905471B1 (de) * | 1979-02-13 | 1980-02-21 | Siemens Ag | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| EP0010552B1 (de) * | 1978-10-25 | 1983-08-24 | Theodor Tobias Dipl.-Phys. Bossert | Verfahren und Schaltungsanordnung zum Messen der Empfangsqualität eines frequenzmodulierten UKW-Signals |
| DE3121146A1 (de) * | 1981-05-27 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Digitales funksystem |
| 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 |
| JP2671595B2 (ja) * | 1990-10-25 | 1997-10-29 | 日本電気株式会社 | 復調装置 |
| US6577851B1 (en) * | 1999-11-16 | 2003-06-10 | Motorola, Inc. | Impulse noise blanker |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
1976
- 1976-06-28 DE DE2628997A patent/DE2628997C3/de not_active Expired
-
1977
- 1977-06-02 CA CA279,691A patent/CA1095991A/en not_active Expired
- 1977-06-24 AR AR268189A patent/AR210559A1/es active
- 1977-06-24 JP JP7538777A patent/JPS532017A/ja active Pending
- 1977-06-25 EG EG376/77A patent/EG13287A/xx active
- 1977-06-27 TR TR19665A patent/TR19665A/xx unknown
- 1977-06-27 ZA ZA00773844A patent/ZA773844B/xx unknown
- 1977-06-27 IL IL52390A patent/IL52390A/xx unknown
- 1977-06-27 BR BR7704191A patent/BR7704191A/pt unknown
- 1977-06-27 GR GR53818A patent/GR66390B/el unknown
- 1977-06-27 AU AU26492/77A patent/AU500608B2/en not_active Expired
- 1977-06-28 US US05/810,904 patent/US4197501A/en not_active Expired - Lifetime
- 1977-06-28 BE BE178866A patent/BE856217A/xx unknown
- 1977-10-28 IN IN1549/CAL/77A patent/IN148130B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2628997A1 (de) | 1977-12-29 |
| IN148130B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-11-08 |
| JPS532017A (en) | 1978-01-10 |
| US4197501A (en) | 1980-04-08 |
| GR66390B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-03-20 |
| IL52390A (en) | 1979-07-25 |
| DE2628997B2 (de) | 1978-04-13 |
| AR210559A1 (es) | 1977-08-15 |
| AU500608B2 (en) | 1979-05-24 |
| BE856217A (fr) | 1977-12-28 |
| DE2628997C3 (de) | 1978-11-30 |
| TR19665A (tr) | 1979-10-05 |
| BR7704191A (pt) | 1978-03-21 |
| ZA773844B (en) | 1978-05-30 |
| EG13287A (en) | 1982-03-31 |
| IL52390A0 (en) | 1977-08-31 |
| AU2649277A (en) | 1979-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |