DE3786644D1 - Interferenzunempfindlicher digital-modulationsempfaenger. - Google Patents
Interferenzunempfindlicher digital-modulationsempfaenger.Info
- Publication number
- DE3786644D1 DE3786644D1 DE8787117071T DE3786644T DE3786644D1 DE 3786644 D1 DE3786644 D1 DE 3786644D1 DE 8787117071 T DE8787117071 T DE 8787117071T DE 3786644 T DE3786644 T DE 3786644T DE 3786644 D1 DE3786644 D1 DE 3786644D1
- Authority
- DE
- Germany
- Prior art keywords
- interference
- digital modulation
- modulation receiver
- sensitive digital
- sensitive
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61277155A JPS63129751A (ja) | 1986-11-19 | 1986-11-19 | 受信装置 |
JP62253303A JP2545882B2 (ja) | 1987-10-07 | 1987-10-07 | データ再生装置 |
JP62254893A JPH0197038A (ja) | 1987-10-09 | 1987-10-09 | ディジタル受信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3786644D1 true DE3786644D1 (de) | 1993-08-26 |
DE3786644T2 DE3786644T2 (de) | 1994-02-24 |
Family
ID=27334210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE87117071T Expired - Fee Related DE3786644T2 (de) | 1986-11-19 | 1987-11-19 | Interferenzunempfindlicher Digital-Modulationsempfänger. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4823361A (de) |
EP (1) | EP0268292B1 (de) |
AU (1) | AU591436B2 (de) |
DE (1) | DE3786644T2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134634A (en) * | 1989-08-31 | 1992-07-28 | Nec Corporation | Multilevel quadrature amplitude demodulator capable of compensating for a quadrature phase deviation of a carrier signal pair |
US5495496A (en) * | 1991-09-26 | 1996-02-27 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for suppressing linear amplitude interference from bandspread communication signals |
US5974101A (en) * | 1992-04-28 | 1999-10-26 | Canon Kabushiki Kaisha | Spread spectrum modulation communication apparatus for narrow band interference elimination |
US5424881A (en) | 1993-02-01 | 1995-06-13 | Cirrus Logic, Inc. | Synchronous read channel |
GB2307148B (en) * | 1995-11-04 | 1999-11-17 | Northern Telecom Ltd | Interference reduction in telecommunication systems |
GB2307150B (en) * | 1995-11-09 | 1999-10-20 | Northern Telecom Ltd | An interference reduction scheme and method |
US6567475B1 (en) * | 1998-12-29 | 2003-05-20 | Ericsson Inc. | Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols |
US7773967B2 (en) * | 2007-09-06 | 2010-08-10 | Francis J. Smith | Multi-mode—multi-band direct conversion receiver with complex I and Q channel interference mitigation processing for cancellation of intermodulation products |
KR100994155B1 (ko) * | 2008-09-16 | 2010-11-12 | 전자부품연구원 | 대역외 간섭신호 제거 장치 및 방법 |
US10771030B2 (en) * | 2018-08-24 | 2020-09-08 | Analog Devices International Unlimited Company | Phase-locked loop with adjustable bandwidth |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380082A (en) * | 1980-05-21 | 1983-04-12 | Nippon Electric Co., Ltd. | Digital signal receiver with FM interference elimination capability |
US4479258A (en) * | 1981-09-30 | 1984-10-23 | Nippon Electric Co., Ltd. | Cross-polarization crosstalk canceller |
US4544894A (en) * | 1983-03-23 | 1985-10-01 | Nec Corporation | DC Voltage control circuits |
US4644564A (en) * | 1983-08-05 | 1987-02-17 | International Business Machines Corporation | Decoding the output signal of a partial-response class-IV communication or recording device channel |
US4534026A (en) * | 1983-12-06 | 1985-08-06 | Paradyne Corporation | Normalized error compensator for modems using radial amplitude modulation for multiplexing |
US4631734A (en) * | 1985-03-21 | 1986-12-23 | At&T Bell Laboratories | Cross-polarization canceler/equalizer |
-
1987
- 1987-11-19 AU AU81391/87A patent/AU591436B2/en not_active Ceased
- 1987-11-19 EP EP87117071A patent/EP0268292B1/de not_active Expired - Lifetime
- 1987-11-19 US US07/122,970 patent/US4823361A/en not_active Expired - Lifetime
- 1987-11-19 DE DE87117071T patent/DE3786644T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0268292A3 (en) | 1990-04-04 |
EP0268292A2 (de) | 1988-05-25 |
AU591436B2 (en) | 1989-11-30 |
AU8139187A (en) | 1988-05-26 |
EP0268292B1 (de) | 1993-07-21 |
US4823361A (en) | 1989-04-18 |
DE3786644T2 (de) | 1994-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |