SE218563C1 - - Google Patents
Info
- Publication number
- SE218563C1 SE218563C1 SE1411862A SE1411862A SE218563C1 SE 218563 C1 SE218563 C1 SE 218563C1 SE 1411862 A SE1411862 A SE 1411862A SE 1411862 A SE1411862 A SE 1411862A SE 218563 C1 SE218563 C1 SE 218563C1
- Authority
- SE
- Sweden
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US163183A US3214526A (en) | 1961-12-29 | 1961-12-29 | Echo suppressor with improved break-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE218563C1 true SE218563C1 (en, 2012) | 1968-01-30 |
Family
ID=22588836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1411862A SE218563C1 (en, 2012) | 1961-12-29 | 1962-12-28 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3214526A (en, 2012) |
| BE (1) | BE626673A (en, 2012) |
| DE (1) | DE1163393B (en, 2012) |
| GB (1) | GB1018942A (en, 2012) |
| SE (1) | SE218563C1 (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3275759A (en) * | 1963-04-15 | 1966-09-27 | Bell Telephone Labor Inc | Break-in arrangement with compensation for variations in the trans-hybrid loss for echo suppressors |
| US5212722A (en) * | 1989-07-24 | 1993-05-18 | Nec Corporation | Hands-free telephone having a handset volume attenuator for controlling speaker volume in a hands-free adaptor |
-
0
- BE BE626673D patent/BE626673A/xx unknown
-
1961
- 1961-12-29 US US163183A patent/US3214526A/en not_active Expired - Lifetime
-
1962
- 1962-12-18 DE DEW33556A patent/DE1163393B/de active Pending
- 1962-12-21 GB GB48333/62A patent/GB1018942A/en not_active Expired
- 1962-12-28 SE SE1411862A patent/SE218563C1/sl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1163393B (de) | 1964-02-20 |
| BE626673A (en, 2012) | |
| US3214526A (en) | 1965-10-26 |
| GB1018942A (en) | 1966-02-02 |