DE1931239A1 - Echosperre fuer Vierdrahtverbindungen - Google Patents
Echosperre fuer VierdrahtverbindungenInfo
- Publication number
- DE1931239A1 DE1931239A1 DE19691931239 DE1931239A DE1931239A1 DE 1931239 A1 DE1931239 A1 DE 1931239A1 DE 19691931239 DE19691931239 DE 19691931239 DE 1931239 A DE1931239 A DE 1931239A DE 1931239 A1 DE1931239 A1 DE 1931239A1
- Authority
- DE
- Germany
- Prior art keywords
- line
- signal
- state
- signals
- lei
- 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.)
- Withdrawn
Links
- 230000015654 memory Effects 0.000 claims description 80
- 230000005540 biological transmission Effects 0.000 claims description 43
- 230000001629 suppression Effects 0.000 claims description 28
- 238000005070 sampling Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 13
- 230000004913 activation Effects 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 6
- 101100128932 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) LSO1 gene Proteins 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000002452 interceptive effect Effects 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 102100023667 Coiled-coil domain-containing protein 124 Human genes 0.000 description 1
- 101000978248 Homo sapiens Coiled-coil domain-containing protein 124 Proteins 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/04—Distributors combined with modulators or demodulators
- H04J3/047—Distributors with transistors or integrated circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73892468A | 1968-06-21 | 1968-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1931239A1 true DE1931239A1 (de) | 1970-01-02 |
Family
ID=24970054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691931239 Withdrawn DE1931239A1 (de) | 1968-06-21 | 1969-06-20 | Echosperre fuer Vierdrahtverbindungen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3562448A (OSRAM) |
| JP (1) | JPS507887B1 (OSRAM) |
| BE (1) | BE734896A (OSRAM) |
| DE (1) | DE1931239A1 (OSRAM) |
| FR (1) | FR2011448A1 (OSRAM) |
| GB (1) | GB1216352A (OSRAM) |
| SE (1) | SE351093B (OSRAM) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2200771A1 (de) * | 1971-01-08 | 1972-07-20 | Communications Satellite Corp | Digitalechosperrer |
| DE2239770A1 (de) * | 1971-08-13 | 1973-03-01 | Nippon Electric Co | Multiplex - vorrichtung zur echounterdrueckung fuer mehrere fernsprechuebertragungskanaele |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673355A (en) * | 1970-09-02 | 1972-06-27 | Bell Telephone Labor Inc | Common control digital echo suppression |
| US3821494A (en) * | 1972-07-14 | 1974-06-28 | Ibm | Digital echo suppressor with direct table look up control by delta coded signals |
| US4051332A (en) * | 1973-08-20 | 1977-09-27 | Nippon Telegraph And Telephone Public Corporation | Multiplex digital echo suppression system |
| JPS5317451B2 (OSRAM) * | 1973-08-20 | 1978-06-08 | ||
| FR2255762B1 (OSRAM) * | 1973-12-21 | 1976-07-23 | Ibm France | |
| US3906172A (en) * | 1974-04-22 | 1975-09-16 | Gen Electric | Digital echo suppressor |
| US3937907A (en) * | 1974-06-13 | 1976-02-10 | Communications Satellite Corporation | Digital echo suppressor |
| US4005276A (en) * | 1975-03-20 | 1977-01-25 | International Business Machines Corporation | Digital voice signaling with digital echo detection and voice activity compression used to cancel echo |
| US4029912A (en) * | 1975-12-10 | 1977-06-14 | Bell Telephone Laboratories, Incorporated | Common control digital echo suppressor |
| US4088851A (en) * | 1976-04-28 | 1978-05-09 | Wescom, Inc. | Digital echo suppressor |
| US5022074A (en) * | 1985-07-01 | 1991-06-04 | Rockwell International Corporation | Digital echo suppressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305646A (en) * | 1963-11-13 | 1967-02-21 | Bell Telephone Labor Inc | Echo suppressor with improved break-in circuitry |
-
1968
- 1968-06-21 US US738924A patent/US3562448A/en not_active Expired - Lifetime
-
1969
- 1969-06-10 SE SE08223/69A patent/SE351093B/xx unknown
- 1969-06-20 BE BE734896D patent/BE734896A/xx not_active IP Right Cessation
- 1969-06-20 FR FR6920867A patent/FR2011448A1/fr active Pending
- 1969-06-20 DE DE19691931239 patent/DE1931239A1/de not_active Withdrawn
- 1969-06-21 JP JP44048693A patent/JPS507887B1/ja active Pending
- 1969-06-23 GB GB31568/69A patent/GB1216352A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2200771A1 (de) * | 1971-01-08 | 1972-07-20 | Communications Satellite Corp | Digitalechosperrer |
| DE2239770A1 (de) * | 1971-08-13 | 1973-03-01 | Nippon Electric Co | Multiplex - vorrichtung zur echounterdrueckung fuer mehrere fernsprechuebertragungskanaele |
Also Published As
| Publication number | Publication date |
|---|---|
| SE351093B (OSRAM) | 1972-11-13 |
| GB1216352A (en) | 1970-12-23 |
| JPS507887B1 (OSRAM) | 1975-03-31 |
| FR2011448A1 (OSRAM) | 1970-02-27 |
| BE734896A (OSRAM) | 1969-12-01 |
| US3562448A (en) | 1971-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8130 | Withdrawal |