GB587489A - Multiplex telephone system - Google Patents
Multiplex telephone systemInfo
- Publication number
- GB587489A GB587489A GB18684/44A GB1868444A GB587489A GB 587489 A GB587489 A GB 587489A GB 18684/44 A GB18684/44 A GB 18684/44A GB 1868444 A GB1868444 A GB 1868444A GB 587489 A GB587489 A GB 587489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- pass filter
- pass
- signals
- station
- 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
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1676—Time-division multiplex with pulse-position, pulse-interval, or pulse-width modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/17—Ground-based stations employing pulse modulation, e.g. pulse code modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US506803A US2395467A (en) | 1943-10-19 | 1943-10-19 | Multiplex telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB587489A true GB587489A (en) | 1947-04-28 |
Family
ID=24016071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18684/44A Expired GB587489A (en) | 1943-10-19 | 1944-09-29 | Multiplex telephone system |
Country Status (4)
Country | Link |
---|---|
US (1) | US2395467A (US07860544-20101228-C00003.png) |
BE (1) | BE462299A (US07860544-20101228-C00003.png) |
FR (1) | FR941112A (US07860544-20101228-C00003.png) |
GB (1) | GB587489A (US07860544-20101228-C00003.png) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2736007A (en) * | 1956-02-21 | Teledata system | ||
US2616977A (en) * | 1952-11-04 | Sheetsxsheet i | ||
US2406803A (en) * | 1941-12-16 | 1946-09-03 | Standard Telephones Cables Ltd | High-frequency electrical communication system |
FR957921A (US07860544-20101228-C00003.png) * | 1942-03-12 | 1950-02-28 | ||
US2474244A (en) * | 1944-05-19 | 1949-06-28 | Standard Telephones Cables Ltd | Amplitude modulated time modulated pulse system |
US2472705A (en) * | 1944-07-17 | 1949-06-07 | John H Homrighous | Time division carrier multiplex telephone system |
BE479412A (US07860544-20101228-C00003.png) * | 1944-08-07 | |||
FR960543A (US07860544-20101228-C00003.png) * | 1945-01-03 | 1950-04-20 | ||
BE477651A (US07860544-20101228-C00003.png) * | 1945-03-01 | |||
US3924074A (en) * | 1945-05-19 | 1975-12-02 | Bell Telephone Labor Inc | Pulse position modulation key signaling system |
US2520534A (en) * | 1945-08-18 | 1950-08-29 | Bell Telephone Labor Inc | Multiplex pulse repeater |
GB604817A (en) * | 1945-12-28 | 1948-07-09 | Standard Telephones Cables Ltd | Improvements relating to multi-channel pulse communication systems |
BE476632A (US07860544-20101228-C00003.png) * | 1945-12-31 | |||
US3934078A (en) * | 1946-05-01 | 1976-01-20 | Bell Telephone Laboratories, Incorporated | Key generating system |
US4396801A (en) * | 1946-06-11 | 1983-08-02 | Bell Telephone Laboratories, Incorporated | Multiplex communication system employing pulse code modulation |
BE479963A (US07860544-20101228-C00003.png) * | 1946-06-22 | |||
US2523703A (en) * | 1946-06-25 | 1950-09-26 | Research Corp | System for transmitting signal modulated pulses |
US2721899A (en) * | 1946-07-25 | 1955-10-25 | Gen Dynamics Corp | Pulse communication system |
US2497411A (en) * | 1946-07-25 | 1950-02-14 | Stromberg Carlson Co | Pulse transmission system |
BE478251A (US07860544-20101228-C00003.png) * | 1946-07-27 | |||
BE477244A (US07860544-20101228-C00003.png) * | 1946-08-24 | |||
US2468703A (en) * | 1946-09-26 | 1949-04-26 | Serdex Inc | Chronometric electronic radiosonde system |
GB652357A (en) * | 1946-11-21 | 1951-04-25 | Gen Electric Co Ltd | Improvements in and relating to multi-channel signalling systems |
US2557581A (en) * | 1947-02-15 | 1951-06-19 | Rock Ola Mfg Corp | Remote control system |
US2610295A (en) * | 1947-10-30 | 1952-09-09 | Bell Telephone Labor Inc | Pulse code modulation communication system |
US2597038A (en) * | 1947-11-19 | 1952-05-20 | Int Standard Electric Corp | Two-way electric pulse communication system |
GB680702A (en) * | 1947-12-07 | 1952-10-08 | Standard Telephones Cables Ltd | Mixed modulation in pulsed intercommunication systems |
US2587734A (en) * | 1947-12-22 | 1952-03-04 | Meguer V Kalfaian | Modulator tube and circuits |
US2658189A (en) * | 1948-01-09 | 1953-11-03 | Bell Telephone Labor Inc | Signaling system based on orthogonal functions |
US2541932A (en) * | 1948-05-19 | 1951-02-13 | Bell Telephone Labor Inc | Multiplex speech interpolation system |
US2750566A (en) * | 1948-06-04 | 1956-06-12 | Raytheon Mfg Co | Telemetering transmission system |
US2655652A (en) * | 1948-06-28 | 1953-10-13 | John H Homrighous | Multiplex time division telephone systems |
US2680153A (en) * | 1949-01-14 | 1954-06-01 | Philco Corp | Multichannel communication system |
NL86409C (US07860544-20101228-C00003.png) * | 1949-10-26 |
-
0
- BE BE462299D patent/BE462299A/xx unknown
-
1943
- 1943-10-19 US US506803A patent/US2395467A/en not_active Expired - Lifetime
-
1944
- 1944-09-29 GB GB18684/44A patent/GB587489A/en not_active Expired
-
1945
- 1945-08-02 FR FR941112D patent/FR941112A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE462299A (US07860544-20101228-C00003.png) | |
US2395467A (en) | 1946-02-26 |
FR941112A (fr) | 1949-01-03 |
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