ES440696A1 - Un subsistema para agregar a un sistema mic (modulacion por impulsos codificados) existente, que proporciona canales de datos adicionales y aumenta el numero de canales de senali- zacion. - Google Patents
Un subsistema para agregar a un sistema mic (modulacion por impulsos codificados) existente, que proporciona canales de datos adicionales y aumenta el numero de canales de senali- zacion.Info
- Publication number
- ES440696A1 ES440696A1 ES440696A ES440696A ES440696A1 ES 440696 A1 ES440696 A1 ES 440696A1 ES 440696 A ES440696 A ES 440696A ES 440696 A ES440696 A ES 440696A ES 440696 A1 ES440696 A1 ES 440696A1
- Authority
- ES
- Spain
- Prior art keywords
- code
- subsystem
- framing
- framing code
- channels
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
- H04J3/0605—Special codes used as synchronising signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US503014A US3909540A (en) | 1974-09-03 | 1974-09-03 | Data and signaling multiplexing in PCM systems via the framing code |
Publications (1)
Publication Number | Publication Date |
---|---|
ES440696A1 true ES440696A1 (es) | 1977-03-01 |
Family
ID=24000412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES440696A Expired ES440696A1 (es) | 1974-09-03 | 1975-09-03 | Un subsistema para agregar a un sistema mic (modulacion por impulsos codificados) existente, que proporciona canales de datos adicionales y aumenta el numero de canales de senali- zacion. |
Country Status (3)
Country | Link |
---|---|
US (1) | US3909540A (es) |
CA (1) | CA1044385A (es) |
ES (1) | ES440696A1 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3984642A (en) * | 1974-06-10 | 1976-10-05 | The Post Office | Digital telephone and switching system employing time division multiplex pulse code modulation |
DE2512302C2 (de) * | 1975-03-20 | 1977-02-17 | Siemens Ag | Schaltungsanordnung zur uebertragung zeichenrahmen-gebundener daten in zeitmultiplexsystemen |
US3970799A (en) * | 1975-10-06 | 1976-07-20 | Bell Telephone Laboratories, Incorporated | Common control signaling extraction circuit |
FR2329108A1 (fr) * | 1975-10-20 | 1977-05-20 | Cit Alcatel | Dispositif de traitement d'un train numerique |
US4125745A (en) * | 1977-06-13 | 1978-11-14 | International Telephone And Telegraph Corporation | Method and apparatus for signaling and framing in a time division multiplex communication system |
US4142070A (en) * | 1977-12-27 | 1979-02-27 | Wescom, Inc. | False framing detector |
US4245340A (en) * | 1978-12-05 | 1981-01-13 | Bell Telephone Laboratories, Incorporated | Data link for digital channel bank systems |
US4243930A (en) * | 1979-05-23 | 1981-01-06 | Lynch Communication Systems, Inc. | Method and means for transmitting low speed signals over a PCM framing code |
US4271509A (en) * | 1979-07-13 | 1981-06-02 | Bell Telephone Laboratories, Incorporated | Supervisory signaling for digital channel banks |
DE2930420C2 (de) * | 1979-07-26 | 1988-12-01 | Siemens AG, 1000 Berlin und 8000 München | Digital-Fernmeldesystem |
US4551835A (en) * | 1983-06-27 | 1985-11-05 | International Business Machines Corporation | X.21 Switching system |
US4581737A (en) * | 1983-12-12 | 1986-04-08 | At&T Bell Laboratories | Bit compression multiplexing |
US4891808A (en) * | 1987-12-24 | 1990-01-02 | Coherent Communication Systems Corp. | Self-synchronizing multiplexer |
US5144625A (en) * | 1990-12-27 | 1992-09-01 | Adtran | Digital subscriber line termination with signalling |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542957A (en) * | 1968-10-25 | 1970-11-24 | Stromberg Carlson Corp | Multiplex arrangement for pulse code modulated signalling system |
US3689699A (en) * | 1971-04-12 | 1972-09-05 | Gen Electric | Synchronizing system |
US3772475A (en) * | 1972-08-28 | 1973-11-13 | Communications Satellite Corp | Satellite communications system with super frame format and frame segmented signalling |
US3821478A (en) * | 1972-09-20 | 1974-06-28 | Northeast Electronics Corp | Pulse code modulated time division multiplexed data transmission system |
-
1974
- 1974-09-03 US US503014A patent/US3909540A/en not_active Expired - Lifetime
-
1975
- 1975-08-27 CA CA234,266A patent/CA1044385A/en not_active Expired
- 1975-09-03 ES ES440696A patent/ES440696A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1044385A (en) | 1978-12-12 |
AU8420275A (en) | 1977-02-24 |
US3909540A (en) | 1975-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970612 |