FR946925A - Communication system - Google Patents
Communication systemInfo
- Publication number
- FR946925A FR946925A FR946925DA FR946925A FR 946925 A FR946925 A FR 946925A FR 946925D A FR946925D A FR 946925DA FR 946925 A FR946925 A FR 946925A
- 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
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/82—Digital/analogue converters with intermediate conversion to time interval
- H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
- H03M1/827—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation in which the total pulse width is distributed over multiple shorter pulse widths
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Control Of Amplification And Gain Control (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US603990A US2464607A (en) | 1945-07-09 | 1945-07-09 | Pulse code modulation communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR946925A true FR946925A (en) | 1949-06-17 |
Family
ID=24417729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR946925D Expired FR946925A (en) | 1945-07-09 | 1947-05-19 | Communication system |
Country Status (7)
Country | Link |
---|---|
US (1) | US2464607A (en) |
BE (1) | BE473323A (en) |
CH (1) | CH287037A (en) |
DE (1) | DE892605C (en) |
FR (1) | FR946925A (en) |
GB (1) | GB630095A (en) |
NL (1) | NL77660C (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE473323A (en) * | 1945-07-09 | 1900-01-01 | ||
US2629857A (en) * | 1946-08-10 | 1953-02-24 | Int Standard Electric Corp | Communication system utilizing constant amplitude pulses of opposite polarities |
US2640105A (en) * | 1947-10-10 | 1953-05-26 | Bell Telephone Labor Inc | Wave transmission system and method for synthesizing a given electrical characteristic |
US2610295A (en) * | 1947-10-30 | 1952-09-09 | Bell Telephone Labor Inc | Pulse code modulation communication system |
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 |
GB664401A (en) * | 1948-03-25 | 1952-01-09 | Nat Res Dev | Improvements in thermionic valve circuits |
US2541932A (en) * | 1948-05-19 | 1951-02-13 | Bell Telephone Labor Inc | Multiplex speech interpolation system |
BE489190A (en) * | 1948-05-22 | |||
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 |
BE491489A (en) * | 1948-10-04 | |||
US2710397A (en) * | 1950-06-24 | 1955-06-07 | George E Foster | Electrical measuring apparatus |
FR1024821A (en) * | 1950-09-22 | 1953-04-07 | Thomson Houston Comp Francaise | Demodulation device for pulse coded transmission system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1928093A (en) * | 1927-04-11 | 1933-09-26 | Harold B Coyle | Signaling system |
NL88393C (en) * | 1937-06-18 | |||
US2262838A (en) * | 1937-11-19 | 1941-11-18 | Int Standard Electric Corp | Electric signaling system |
US2352634A (en) * | 1938-07-18 | 1944-07-04 | Maury I Hull | Signaling system |
NL87334C (en) * | 1938-10-03 | |||
US2415329A (en) * | 1944-11-06 | 1947-02-04 | Arndt Oscar | Center drill |
BE473323A (en) * | 1945-07-09 | 1900-01-01 | ||
US2508622A (en) * | 1945-07-09 | 1950-05-23 | Bell Telephone Labor Inc | Pulse code modulation communication system |
-
0
- BE BE473323D patent/BE473323A/xx unknown
- NL NL77660D patent/NL77660C/xx active
-
1945
- 1945-07-09 US US603990A patent/US2464607A/en not_active Expired - Lifetime
-
1947
- 1947-05-02 GB GB11874/47A patent/GB630095A/en not_active Expired
- 1947-05-19 CH CH287037D patent/CH287037A/en unknown
- 1947-05-19 FR FR946925D patent/FR946925A/en not_active Expired
-
1948
- 1948-12-31 DE DEP28894A patent/DE892605C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH287037A (en) | 1952-11-15 |
US2464607A (en) | 1949-03-15 |
DE892605C (en) | 1953-10-08 |
NL77660C (en) | 1900-01-01 |
BE473323A (en) | 1900-01-01 |
GB630095A (en) | 1949-10-05 |
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