JPS5320817B1 - - Google Patents
Info
- Publication number
- JPS5320817B1 JPS5320817B1 JP2994771A JP2994771A JPS5320817B1 JP S5320817 B1 JPS5320817 B1 JP S5320817B1 JP 2994771 A JP2994771 A JP 2994771A JP 2994771 A JP2994771 A JP 2994771A JP S5320817 B1 JPS5320817 B1 JP S5320817B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
- H03H17/0213—Frequency domain filters using Fourier transforms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/14—Control of transmission; Equalising characterised by the equalising network used
- H04B3/141—Control of transmission; Equalising characterised by the equalising network used using multiequalisers, e.g. bump, cosine, Bode
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Algebra (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4552070A | 1970-06-11 | 1970-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5320817B1 true JPS5320817B1 (ja) | 1978-06-29 |
Family
ID=21938369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2994771A Pending JPS5320817B1 (ja) | 1970-06-11 | 1971-05-07 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3679882A (ja) |
JP (1) | JPS5320817B1 (ja) |
CA (1) | CA950975A (ja) |
DE (1) | DE2125230C3 (ja) |
FR (1) | FR2095512A5 (ja) |
GB (1) | GB1340599A (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3987285A (en) * | 1973-05-04 | 1976-10-19 | Rca Corporation | Digital matched filtering using a step transform process |
US3864632A (en) * | 1973-10-01 | 1975-02-04 | Rockwell International Corp | Fast Equalization System |
JPS5731716B2 (ja) * | 1974-12-23 | 1982-07-06 | ||
FR2308143A1 (fr) * | 1975-04-16 | 1976-11-12 | Ibm France | Dispositif generateur de fonction de convolution discrete et filtre numerique incorporant ledit dispositif |
US4020333A (en) * | 1975-05-06 | 1977-04-26 | International Business Machines Corporation | Digital filter for filtering complex signals |
US3980873A (en) * | 1975-06-27 | 1976-09-14 | Aeronutronic Ford Corporation | Digital convolutional filter |
FR2342592A1 (fr) * | 1976-02-26 | 1977-09-23 | Ibm France | Dispositif de filtrage numerique |
FR2352345A1 (fr) * | 1976-05-21 | 1977-12-16 | Ibm France | Generateur de transformees discretes rapides, et filtre numerique utilisant ledit generateur |
DE3672182D1 (de) * | 1985-03-15 | 1990-07-26 | Emi Ltd | Signalgenerator mit gespreitztem spektrum. |
FR2712447B1 (fr) * | 1993-11-08 | 1996-01-05 | Sat | Procédé de transmission de signaux numériques et récepteur pour la mise en Óoeuvre du procédé. |
US6891887B1 (en) | 1998-05-27 | 2005-05-10 | 3Com Corporation | Multi-carrier LAN adapter device using interpolative equalizer |
US6704317B1 (en) | 1998-05-27 | 2004-03-09 | 3Com Corporation | Multi-carrier LAN modem server |
US6507585B1 (en) | 1998-05-27 | 2003-01-14 | 3Com Corporation | Multi-carrier LAN adapter device using frequency domain equalizer |
US6377683B1 (en) | 1998-05-29 | 2002-04-23 | 3Com Corporation | Low complexity frequency domain echo canceller for DMT transceivers |
US6603811B1 (en) | 1998-05-29 | 2003-08-05 | 3Com Corporation | Low complexity frequency domain equalizer having fast re-lock |
US6973135B1 (en) * | 1999-07-09 | 2005-12-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Reduced delay implementation of fourier transform based channelizers and de-channelizers |
US7502816B2 (en) * | 2003-07-31 | 2009-03-10 | Panasonic Corporation | Signal-processing apparatus and method |
US8200729B2 (en) * | 2006-10-25 | 2012-06-12 | Agilent Technologies, Inc. | Efficient implementation of filters for MIMO fading |
WO2013094308A1 (ja) * | 2011-12-20 | 2013-06-27 | 日本電気株式会社 | ディジタルフィルタ回路およびディジタルフィルタ処理方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403227A (en) * | 1965-10-22 | 1968-09-24 | Page Comm Engineers Inc | Adaptive digital vocoder |
US3544775A (en) * | 1966-12-29 | 1970-12-01 | Bell Telephone Labor Inc | Digital processor for calculating fourier coefficients |
US3517173A (en) * | 1966-12-29 | 1970-06-23 | Bell Telephone Labor Inc | Digital processor for performing fast fourier transforms |
-
1970
- 1970-06-11 US US45520A patent/US3679882A/en not_active Expired - Lifetime
-
1971
- 1971-04-06 FR FR7113019A patent/FR2095512A5/fr not_active Expired
- 1971-05-07 GB GB1362171*[A patent/GB1340599A/en not_active Expired
- 1971-05-07 JP JP2994771A patent/JPS5320817B1/ja active Pending
- 1971-05-14 CA CA113,001,A patent/CA950975A/en not_active Expired
- 1971-05-21 DE DE2125230A patent/DE2125230C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3679882A (en) | 1972-07-25 |
DE2125230B2 (de) | 1978-09-28 |
DE2125230A1 (de) | 1971-12-16 |
CA950975A (en) | 1974-07-09 |
DE2125230C3 (de) | 1979-05-31 |
FR2095512A5 (ja) | 1972-02-11 |
GB1340599A (en) | 1973-12-12 |