JPH0257373B2 - - Google Patents
Info
- Publication number
- JPH0257373B2 JPH0257373B2 JP55502636A JP50263680A JPH0257373B2 JP H0257373 B2 JPH0257373 B2 JP H0257373B2 JP 55502636 A JP55502636 A JP 55502636A JP 50263680 A JP50263680 A JP 50263680A JP H0257373 B2 JPH0257373 B2 JP H0257373B2
- Authority
- JP
- Japan
- Prior art keywords
- equalizer
- signal
- receiver
- output
- filter
- 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
- 239000013598 vector Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer 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
- H04L27/01—Equalisers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/084,803 US4247940A (en) | 1979-10-15 | 1979-10-15 | Equalizer for complex data signals |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56501348A JPS56501348A (US20020095090A1-20020718-M00002.png) | 1981-09-17 |
JPH0257373B2 true JPH0257373B2 (US20020095090A1-20020718-M00002.png) | 1990-12-04 |
Family
ID=22187301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55502636A Expired JPH0257373B2 (US20020095090A1-20020718-M00002.png) | 1979-10-15 | 1980-09-22 |
Country Status (5)
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0638509U (ja) * | 1991-06-10 | 1994-05-24 | 茂 新井 | ペット用セイフティライト |
JPH0657154U (ja) * | 1993-01-27 | 1994-08-09 | 佐和子 中島 | 発光首輪 |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384355A (en) * | 1979-10-15 | 1983-05-17 | Bell Telephone Laboratories, Incorporated | Control of coefficient drift for fractionally spaced equalizers |
US4349916A (en) * | 1980-08-06 | 1982-09-14 | The United States Of America As Represented By The Secretary Of The Air Force | Adaptive interference tracker for suppression of narrow band interference |
DE3173567D1 (de) * | 1980-09-24 | 1986-03-06 | Toshiba Kk | Transversal equalizer |
US4376308A (en) * | 1981-04-01 | 1983-03-08 | Bell Telephone Laboratories, Incorporated | Control of coefficient drift for fractionally spaced equalizers |
US4464545A (en) * | 1981-07-13 | 1984-08-07 | Bell Telephone Laboratories, Incorporated | Echo canceller |
DE3174147D1 (en) * | 1981-11-30 | 1986-04-24 | Ibm | Method for receiving a data signal with double side-band quadrature carrier modulation |
JPS59194540A (ja) * | 1983-04-19 | 1984-11-05 | Nec Corp | 自動適応型等化器 |
US4649505A (en) * | 1984-07-02 | 1987-03-10 | General Electric Company | Two-input crosstalk-resistant adaptive noise canceller |
US4794556A (en) * | 1984-09-19 | 1988-12-27 | Massachusetts Institute Of Technology | Method and apparatus for sampling in-phase and quadrature components |
US4742510A (en) * | 1986-04-04 | 1988-05-03 | Massachusetts Institute Of Technology | Near and far echo canceller for data communications |
US4759037A (en) * | 1986-04-28 | 1988-07-19 | American Telephone And Telegraph Company | Passband equalization of modulated quadrature-related carrier signals |
SE468920B (sv) * | 1987-10-23 | 1993-04-05 | Ericsson Telefon Ab L M | Adaptiv utjaemnare ingaaende i mottagaren foer ett datatransmissionsmedium |
FR2641922B1 (fr) * | 1988-12-30 | 1991-03-22 | Alcatel Transmission | Dispositif d'egalisation auto-adaptative pour installation de demodulation differentiellement coherente |
JPH03166839A (ja) * | 1989-11-27 | 1991-07-18 | Matsushita Electric Ind Co Ltd | ディジタル情報検出装置 |
JPH03173228A (ja) * | 1989-12-01 | 1991-07-26 | Canon Inc | モデム装置 |
JP2586169B2 (ja) * | 1990-03-06 | 1997-02-26 | 日本電気株式会社 | 復調システム |
US5095495A (en) * | 1990-09-04 | 1992-03-10 | At&T Bell Laboratories | Use of cyclostationary signal to constrain the frequency response of a fractionally spaced equalizer |
US5164963A (en) | 1990-11-07 | 1992-11-17 | At&T Bell Laboratories | Coding for digital transmission |
JP2840155B2 (ja) * | 1992-03-19 | 1998-12-24 | 富士通株式会社 | 等化方法 |
DE4440964C1 (de) * | 1994-11-17 | 1996-07-11 | Inst Rundfunktechnik Gmbh | Anordnung zum Entzerren von zwei Datenströmen |
US5646957A (en) * | 1995-07-28 | 1997-07-08 | Lucent Technologies Inc. | Burst update for an adaptive equalizer |
US5910970A (en) * | 1996-05-09 | 1999-06-08 | Texas Instruments Incorporated | MDSL host interface requirement specification |
US5999563A (en) * | 1996-05-09 | 1999-12-07 | Texas Instruments Incorporated | Rate negotiation for variable-rate digital subscriber line signaling |
US6021158A (en) * | 1996-05-09 | 2000-02-01 | Texas Instruments Incorporated | Hybrid wireless wire-line network integration and management |
US5987061A (en) * | 1996-05-09 | 1999-11-16 | Texas Instruments Incorporated | Modem initialization process for line code and rate selection in DSL data communication |
US6002722A (en) * | 1996-05-09 | 1999-12-14 | Texas Instruments Incorporated | Multimode digital modem |
US6137839A (en) * | 1996-05-09 | 2000-10-24 | Texas Instruments Incorporated | Variable scaling of 16-bit fixed point fast fourier forward and inverse transforms to improve precision for implementation of discrete multitone for asymmetric digital subscriber loops |
US5970088A (en) * | 1996-05-09 | 1999-10-19 | Texas Instruments Incorporated | Reverse channel next cancellation for MDSL modem pool |
US6055268A (en) * | 1996-05-09 | 2000-04-25 | Texas Instruments Incorporated | Multimode digital modem |
US6044107A (en) * | 1996-05-09 | 2000-03-28 | Texas Instruments Incorporated | Method for interoperability of a T1E1.4 compliant ADSL modem and a simpler modem |
US6038251A (en) * | 1996-05-09 | 2000-03-14 | Texas Instruments Incorporated | Direct equalization method |
JPH1028080A (ja) * | 1996-07-12 | 1998-01-27 | Nec Corp | 低消費電力型通信用適応等化フィルタ |
US5809069A (en) * | 1996-07-19 | 1998-09-15 | Texas Instruments Incorporated | Frequency-domain carrierless AM-PM demodulator |
US6031874A (en) * | 1997-09-26 | 2000-02-29 | Ericsson Inc. | Unequal error protection in coded modulation schemes |
GB9901491D0 (en) * | 1999-01-22 | 1999-03-17 | Univ Bristol | Receiver |
US20060040162A1 (en) * | 2004-08-17 | 2006-02-23 | Jurica Joseph J | Fuel cell and method for its manufacture |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3617948A (en) * | 1969-09-17 | 1971-11-02 | Bell Telephone Labor Inc | Transversal equalizer modified for signal filtering |
US3755738A (en) * | 1972-05-01 | 1973-08-28 | Bell Telephone Labor Inc | Passband equalizer for phase-modulated data signals |
US3878468A (en) * | 1974-01-30 | 1975-04-15 | Bell Telephone Labor Inc | Joint equalization and carrier recovery adaptation in data transmission systems |
US3898564A (en) * | 1974-03-11 | 1975-08-05 | Bell Telephone Labor Inc | Margin monitoring circuit for repeatered digital transmission line |
FR2295649A1 (fr) * | 1974-12-20 | 1976-07-16 | Trt Telecom Radio Electr | Egaliseur de ligne autoadaptatif pour systeme de transmission de donnees |
US3947768A (en) * | 1975-01-08 | 1976-03-30 | International Business Machines Corporation | Carrier-modulation data transmission equalizers |
US3974449A (en) * | 1975-03-21 | 1976-08-10 | Bell Telephone Laboratories, Incorporated | Joint decision feedback equalization and carrier recovery adaptation in data transmission systems |
US4032762A (en) * | 1975-10-07 | 1977-06-28 | Rockwell International Corporation | Adjustable digital filter for high speed digital transmission |
FR2367386A1 (fr) * | 1976-10-06 | 1978-05-05 | Trt Telecom Radio Electr | Dispositif de resynchronisation automatique d'un recepteur pour transmission de donnees |
FR2370396A1 (fr) * | 1976-11-09 | 1978-06-02 | Cit Alcatel | Ensemble d'egalisation autoadaptatif |
DE2703622C2 (de) * | 1977-01-28 | 1978-12-14 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Adaptiver Entzerrer |
US4151491A (en) * | 1977-09-28 | 1979-04-24 | Harris Corporation | Technique for supplying reference for an adaptive equalizer when multiple phase signals are transmitted |
FR2428946A1 (fr) * | 1978-06-13 | 1980-01-11 | Ibm France | Procede et dispositif pour initialiser un egaliseur adaptatif a partir d'un signal de donnees inconnu dans un systeme de transmission utilisant la modulation d'amplitude en quadrature |
-
1979
- 1979-10-15 US US06/084,803 patent/US4247940A/en not_active Expired - Lifetime
-
1980
- 1980-09-22 WO PCT/US1980/001220 patent/WO1981001088A1/en active IP Right Grant
- 1980-09-22 JP JP55502636A patent/JPH0257373B2/ja not_active Expired
- 1980-09-22 DE DE8080902198T patent/DE3070116D1/de not_active Expired
-
1981
- 1981-04-21 EP EP80902198A patent/EP0037827B1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0638509U (ja) * | 1991-06-10 | 1994-05-24 | 茂 新井 | ペット用セイフティライト |
JPH0657154U (ja) * | 1993-01-27 | 1994-08-09 | 佐和子 中島 | 発光首輪 |
Also Published As
Publication number | Publication date |
---|---|
EP0037827A4 (en) | 1982-03-22 |
JPS56501348A (US20020095090A1-20020718-M00002.png) | 1981-09-17 |
WO1981001088A1 (en) | 1981-04-16 |
US4247940A (en) | 1981-01-27 |
EP0037827B1 (en) | 1985-02-06 |
EP0037827A1 (en) | 1981-10-21 |
DE3070116D1 (en) | 1985-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0257373B2 (US20020095090A1-20020718-M00002.png) | ||
US4384355A (en) | Control of coefficient drift for fractionally spaced equalizers | |
US3974449A (en) | Joint decision feedback equalization and carrier recovery adaptation in data transmission systems | |
EP0093758B1 (en) | Interference cancellation method and apparatus | |
US6563868B1 (en) | Method and apparatus for adaptive equalization in the presence of large multipath echoes | |
US4701936A (en) | Apparatus and method for adjusting the receivers of data transmission channels | |
US5263191A (en) | Method and circuit for processing and filtering signals | |
US5111484A (en) | Adaptive distortion canceller | |
US7418061B2 (en) | Receiver having decisional feedback equalizer with remodulation and related methods | |
US4184129A (en) | Systems for transmitting data between distant locations | |
US4285061A (en) | Equalizer sample loading in voiceband data sets | |
US3614622A (en) | Data transmission method and system | |
US4475211A (en) | Digitally controlled transversal equalizer | |
JPS6326572B2 (US20020095090A1-20020718-M00002.png) | ||
US5267265A (en) | Decision feedback equalizer with expansion and decision circuit | |
US4376308A (en) | Control of coefficient drift for fractionally spaced equalizers | |
IE50470B1 (en) | A phase noise correction circuit for a data transmission system | |
US4481646A (en) | Method and apparatus for receiving a data signal modulated by means of a double sideband-quadrature carrier modulation technique | |
JPH0746810B2 (ja) | 伝送システム | |
EP0040217B1 (en) | Apparatus for and method of processing data signals | |
EP0106136A2 (en) | Digitally controlled transversal equalizer | |
JP3149236B2 (ja) | 受信システム | |
JPH08223240A (ja) | 周波数オフセット補償回路 | |
JPS5945251B2 (ja) | サンプリング位相制御装置 | |
JP2786180B2 (ja) | 適応等化器 |