JPS57168531A - Echo erasing device - Google Patents
Echo erasing deviceInfo
- Publication number
- JPS57168531A JPS57168531A JP5300881A JP5300881A JPS57168531A JP S57168531 A JPS57168531 A JP S57168531A JP 5300881 A JP5300881 A JP 5300881A JP 5300881 A JP5300881 A JP 5300881A JP S57168531 A JPS57168531 A JP S57168531A
- Authority
- JP
- Japan
- Prior art keywords
- coefficient
- circuit
- signal
- telephone
- transmitting
- 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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5300881A JPS57168531A (en) | 1981-04-10 | 1981-04-10 | Echo erasing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5300881A JPS57168531A (en) | 1981-04-10 | 1981-04-10 | Echo erasing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57168531A true JPS57168531A (en) | 1982-10-16 |
JPS6258575B2 JPS6258575B2 (ja) | 1987-12-07 |
Family
ID=12930880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5300881A Granted JPS57168531A (en) | 1981-04-10 | 1981-04-10 | Echo erasing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57168531A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6096037A (ja) * | 1983-10-31 | 1985-05-29 | Nec Corp | 反響消去装置 |
-
1981
- 1981-04-10 JP JP5300881A patent/JPS57168531A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6096037A (ja) * | 1983-10-31 | 1985-05-29 | Nec Corp | 反響消去装置 |
JPH0140536B2 (ja) * | 1983-10-31 | 1989-08-29 | Nippon Electric Co |
Also Published As
Publication number | Publication date |
---|---|
JPS6258575B2 (ja) | 1987-12-07 |
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