JPS5582551A - Echo cancel unit for two line type duplex data communication modem - Google Patents
Echo cancel unit for two line type duplex data communication modemInfo
- Publication number
- JPS5582551A JPS5582551A JP15612078A JP15612078A JPS5582551A JP S5582551 A JPS5582551 A JP S5582551A JP 15612078 A JP15612078 A JP 15612078A JP 15612078 A JP15612078 A JP 15612078A JP S5582551 A JPS5582551 A JP S5582551A
- Authority
- JP
- Japan
- Prior art keywords
- baud rate
- phase difference
- tap coefficient
- rate clock
- transmission
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Bidirectional Digital Transmission (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15612078A JPS5582551A (en) | 1978-12-15 | 1978-12-15 | Echo cancel unit for two line type duplex data communication modem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15612078A JPS5582551A (en) | 1978-12-15 | 1978-12-15 | Echo cancel unit for two line type duplex data communication modem |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5582551A true JPS5582551A (en) | 1980-06-21 |
JPS6155812B2 JPS6155812B2 (ja) | 1986-11-29 |
Family
ID=15620748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15612078A Granted JPS5582551A (en) | 1978-12-15 | 1978-12-15 | Echo cancel unit for two line type duplex data communication modem |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582551A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56157152A (en) * | 1980-04-09 | 1981-12-04 | Western Electric Co | Method and device for processing sample of incoming signal |
US5113389A (en) * | 1985-01-29 | 1992-05-12 | British Telecommunications Public Limited Company | Noise cancellation |
-
1978
- 1978-12-15 JP JP15612078A patent/JPS5582551A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56157152A (en) * | 1980-04-09 | 1981-12-04 | Western Electric Co | Method and device for processing sample of incoming signal |
US5113389A (en) * | 1985-01-29 | 1992-05-12 | British Telecommunications Public Limited Company | Noise cancellation |
Also Published As
Publication number | Publication date |
---|---|
JPS6155812B2 (ja) | 1986-11-29 |
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