FR947270A - Communication system - Google Patents
Communication systemInfo
- Publication number
- FR947270A FR947270A FR947270DA FR947270A FR 947270 A FR947270 A FR 947270A FR 947270D A FR947270D A FR 947270DA FR 947270 A FR947270 A FR 947270A
- Authority
- FR
- France
- Prior art keywords
- communication system
- communication
- 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
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electrotherapy Devices (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US603934A US2451044A (en) | 1945-07-09 | 1945-07-09 | Communication system employing pulse code modulation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR947270A true FR947270A (en) | 1949-06-28 |
Family
ID=24417504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR947270D Expired FR947270A (en) | 1945-07-09 | 1947-05-28 | Communication system |
Country Status (3)
Country | Link |
---|---|
US (1) | US2451044A (en) |
FR (1) | FR947270A (en) |
GB (1) | GB630098A (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2801281A (en) * | 1946-02-21 | 1957-07-30 | Bell Telephone Labor Inc | Communication system employing pulse code modulation |
US2679043A (en) * | 1946-05-21 | 1954-05-18 | Us Sec War | Beacon receiver |
USRE23686E (en) * | 1947-02-12 | 1953-07-14 | Communication system | |
US2796602A (en) * | 1947-08-08 | 1957-06-18 | Padevco Inc | Aircraft identification and location system |
US2651716A (en) * | 1947-11-08 | 1953-09-08 | Int Standard Electric Corp | Pulse code modulation demodulator |
GB644932A (en) * | 1948-01-16 | 1950-10-18 | Standard Telephones Cables Ltd | Improvements in or relating to signal compression and expansion arrangements in electric communication systems |
GB646050A (en) * | 1948-02-20 | 1950-11-15 | Standard Telephones Cables Ltd | Improvements in or relating to electric pulse code modulation systems of communication |
GB664401A (en) * | 1948-03-25 | 1952-01-09 | Nat Res Dev | Improvements in thermionic valve circuits |
NL80113C (en) * | 1948-07-21 | |||
US2603714A (en) * | 1948-09-01 | 1952-07-15 | Bell Telephone Labor Inc | Percentage time division multiplex for pulse code modulation |
US2592308A (en) * | 1948-09-01 | 1952-04-08 | Bell Telephone Labor Inc | Nonlinear pulse code modulation system |
NL106021C (en) * | 1948-12-24 | |||
US2645712A (en) * | 1949-12-01 | 1953-07-14 | Rca Corp | Reading circuit for storage tubes |
US2678254A (en) * | 1949-12-16 | 1954-05-11 | Schenck James | Coding and recording system |
US2712184A (en) * | 1949-12-31 | 1955-07-05 | Askania Regulator Co | Electrical analogue training device |
US2678425A (en) * | 1950-02-21 | 1954-05-11 | Raytheon Mfg Co | Analogue computer |
IT500026A (en) * | 1950-05-17 | |||
BE505568A (en) * | 1950-09-01 | |||
US2754503A (en) * | 1951-12-21 | 1956-07-10 | Little Inc A | Digital reading apparatus |
US2762038A (en) * | 1952-06-11 | 1956-09-04 | Underwood Corp | Voltage measuring device |
FR1084172A (en) * | 1953-02-19 | 1955-01-17 | Electronique & Automatisme Sa | Electrical voltage encoder system |
US2865564A (en) * | 1953-04-02 | 1958-12-23 | Hughes Aircraft Co | High-speed electronic data conversion system |
US2946848A (en) * | 1954-03-08 | 1960-07-26 | Edgar W Van Winkle | Facsimile recorder system |
US2974282A (en) * | 1954-06-18 | 1961-03-07 | Ericsson Telefon Ab L M | Device for representing a voltage in the shape of a code |
US2840806A (en) * | 1955-10-12 | 1958-06-24 | Hughes Aircraft Co | Voltage state to digital converter |
USRE25911E (en) * | 1958-09-11 | 1965-11-23 | Vaughan multiplex signaling system | |
DE2315987C3 (en) * | 1973-03-30 | 1978-07-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Digital-to-analog converter, in particular for an encoder that works according to the iterative method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB470495A (en) * | 1935-11-14 | 1937-08-16 | Alan Dower Blumlein | Improvements in or relating to multiplex signalling systems |
US2262838A (en) * | 1937-11-19 | 1941-11-18 | Int Standard Electric Corp | Electric signaling system |
BE437148A (en) * | 1938-10-03 | |||
US2313209A (en) * | 1938-11-08 | 1943-03-09 | Valensi Georges | Communication system |
US2326515A (en) * | 1940-08-03 | 1943-08-10 | Gen Electric | Television system |
US2300999A (en) * | 1940-10-30 | 1942-11-03 | Westinghouse Electric & Mfg Co | Electromagnetic inspection system |
US2405231A (en) * | 1942-03-31 | 1946-08-06 | Bell Telephone Labor Inc | Aircraft blind landing system |
US2418116A (en) * | 1943-12-20 | 1947-04-01 | Standard Telephones Cables Ltd | Multiplex synchronizing system |
-
1945
- 1945-07-09 US US603934A patent/US2451044A/en not_active Expired - Lifetime
-
1947
- 1947-05-28 FR FR947270D patent/FR947270A/en not_active Expired
- 1947-06-06 GB GB15024/47A patent/GB630098A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB630098A (en) | 1949-10-05 |
US2451044A (en) | 1948-10-12 |
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