GB967642A - Improvements in or relating to pulse code modulation systems - Google Patents
Improvements in or relating to pulse code modulation systemsInfo
- Publication number
- GB967642A GB967642A GB34658/61A GB3465861A GB967642A GB 967642 A GB967642 A GB 967642A GB 34658/61 A GB34658/61 A GB 34658/61A GB 3465861 A GB3465861 A GB 3465861A GB 967642 A GB967642 A GB 967642A
- Authority
- GB
- United Kingdom
- Prior art keywords
- digit
- binary
- line
- space
- office
- 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
- 230000011664 signaling Effects 0.000 abstract 6
- 230000005540 biological transmission Effects 0.000 abstract 1
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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63737A US3083267A (en) | 1960-10-20 | 1960-10-20 | Pcm telephone signaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB967642A true GB967642A (en) | 1964-08-26 |
Family
ID=22051157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34658/61A Expired GB967642A (en) | 1960-10-20 | 1961-09-27 | Improvements in or relating to pulse code modulation systems |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3083267A (forum.php) |
| BE (1) | BE609379A (forum.php) |
| CH (1) | CH394289A (forum.php) |
| DE (1) | DE1227056B (forum.php) |
| FR (1) | FR1305616A (forum.php) |
| GB (1) | GB967642A (forum.php) |
| NL (1) | NL269710A (forum.php) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3359372A (en) * | 1967-12-19 | De burro | ||
| US3207851A (en) * | 1961-11-17 | 1965-09-21 | Hitachi Ltd | Transmission system for pulse-codemodulated signals |
| US3259695A (en) * | 1961-11-27 | 1966-07-05 | Nippon Electric Co | Malfunction monitoring of time-division multiplex pcm equipment |
| NL291133A (forum.php) * | 1962-04-24 | |||
| GB1072871A (en) * | 1963-01-14 | 1967-06-21 | Post Office | Improvements in or relating to time division multiplex pulse code modulation communication systems |
| US3423534A (en) * | 1963-11-21 | 1969-01-21 | Bell Telephone Labor Inc | Transmission of supervisory information |
| US3426153A (en) * | 1963-12-18 | 1969-02-04 | Bell Telephone Labor Inc | System for synchronizing digital communication apparatus |
| DE1254715B (de) * | 1964-08-13 | 1967-11-23 | Siemens Ag | Verfahren und Anordnung zur Synchronisation wenigstens eines digitalen Zeitmultiplexsystems |
| US3359373A (en) * | 1966-05-24 | 1967-12-19 | Bell Telephone Labor Inc | Pcm telephone signaling with timedivided signaling digit spaces |
| US3492434A (en) * | 1966-12-23 | 1970-01-27 | Bell Telephone Labor Inc | Dial pulsing signaling system utilizing coded pulse group transmission over a common signaling channel |
| DE1762003C3 (de) * | 1967-03-31 | 1979-03-08 | Fujitsu Ltd., Kawasaki, Kanagawa (Japan) | Nachrichtenanordnung |
| US3542956A (en) * | 1967-05-31 | 1970-11-24 | Communications Satellite Corp | Pcm telephone communication system |
| US4217488A (en) * | 1977-01-21 | 1980-08-12 | Bell Telephone Laboratories, Incorporated | Secure optical communication components, method, and system |
| US4143241A (en) * | 1977-06-10 | 1979-03-06 | Bell Telephone Laboratories, Incorporated | Small digital time division switching arrangement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE473141A (forum.php) * | 1943-10-11 | |||
| NL80444C (forum.php) * | 1946-06-11 | |||
| GB714094A (en) * | 1952-01-18 | 1954-08-25 | Gen Electric Co Ltd | Improvements in or relating to electric pulse code modulation signalling systems |
| US2946044A (en) * | 1954-08-09 | 1960-07-19 | Gen Electric | Signal processing system |
-
0
- NL NL269710D patent/NL269710A/xx unknown
-
1960
- 1960-10-20 US US63737A patent/US3083267A/en not_active Expired - Lifetime
-
1961
- 1961-08-28 DE DEW30622A patent/DE1227056B/de active Pending
- 1961-09-06 FR FR872530A patent/FR1305616A/fr not_active Expired
- 1961-09-26 CH CH1116261A patent/CH394289A/de unknown
- 1961-09-27 GB GB34658/61A patent/GB967642A/en not_active Expired
- 1961-10-19 BE BE609379A patent/BE609379A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE609379A (fr) | 1962-02-15 |
| FR1305616A (fr) | 1962-10-05 |
| NL269710A (forum.php) | |
| CH394289A (de) | 1965-06-30 |
| DE1227056B (de) | 1966-10-20 |
| US3083267A (en) | 1963-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB967642A (en) | Improvements in or relating to pulse code modulation systems | |
| GB1449063A (en) | Electronic time-division-multiplexed pabx telephone system | |
| GB1013594A (en) | Improvements in communication switching systems | |
| GB981336A (en) | Improvements in or relating to time-division multiplex switching systems | |
| US3059058A (en) | Subscriber line circuit with local ringing | |
| GB967643A (en) | Improvements in or relating to digital message transmission systems | |
| ES367568A1 (es) | Aparato de abonado para sistema telefonico en pcm. | |
| GB1329556A (en) | Telephone systems | |
| GB1020404A (en) | Improvements in or relating to telephone systems | |
| GB1230928A (forum.php) | ||
| ES8401815A1 (es) | Procedimiento y aparato para senalizar el modo de transmision de un sistema de comunicacion. | |
| GB534866A (en) | Improvements relating to telephone and like signalling systems | |
| GB1330409A (en) | Interface circuit for a pcm system | |
| US2595388A (en) | Telephone conversation timing means | |
| GB1085898A (en) | Improvements in or relating to telecommunication systems | |
| US3426154A (en) | Circuit arrangement branch exchange for a telephone installation,especially an installation with code selection and impulse selection of the subscriber stations | |
| US3668314A (en) | Supervisory circuit for electronically monitoring a telegraphy line | |
| GB1389017A (en) | Apparatus for conversion of telephones connection in parallel to a common line to provide a private switching system | |
| US3800094A (en) | Centrally controlled telephone system having means for sensing and evaluating changes of the states of loops | |
| GB1402826A (en) | Pcm tdm telecommunications systems | |
| US2983780A (en) | Circuit arrangement for interconnecting teleprinter subscriber-networks | |
| GB1184519A (en) | Subscriber Subset for PCM. | |
| US2838610A (en) | Electronic telephone system | |
| JPS54100608A (en) | Circuit control system of time-division digital telephone switchboard | |
| GB1363553A (en) | Telegraphic keying circuits |