BE519369A - - Google Patents
Info
- Publication number
- BE519369A BE519369A BE519369DA BE519369A BE 519369 A BE519369 A BE 519369A BE 519369D A BE519369D A BE 519369DA BE 519369 A BE519369 A BE 519369A
- Authority
- BE
- Belgium
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
- H04B14/048—Non linear compression or expansion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US283857A US2795650A (en) | 1952-04-23 | 1952-04-23 | Compandor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE519369A true BE519369A (US20100268047A1-20101021-C00003.png) |
Family
ID=23087862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE519369D BE519369A (US20100268047A1-20101021-C00003.png) | 1952-04-23 |
Country Status (5)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2980765A (en) * | 1953-12-03 | 1961-04-18 | British Telecomm Res Ltd | Transmission of television signals |
| US2959641A (en) * | 1957-01-02 | 1960-11-08 | Itt | Instantaneous type time compressors and expanders for pulse time modulation transmission systems |
| US2951905A (en) * | 1957-01-03 | 1960-09-06 | Itt | Instantaneous type time compressors and expanders for pulse time modulation transmission systems |
| US2951906A (en) * | 1957-02-11 | 1960-09-06 | Itt | Delay device |
| US3015815A (en) * | 1959-05-18 | 1962-01-02 | Bell Telephone Labor Inc | Conversion between analog and digital information on a piecewise-linear basis |
| US3016528A (en) * | 1959-05-18 | 1962-01-09 | Bell Telephone Labor Inc | Nonlinear conversion between analog and digital signals by a piecewiselinear process |
| US3176224A (en) * | 1960-11-25 | 1965-03-30 | Raytheon Co | Compressor-expander |
| BE630982A (US20100268047A1-20101021-C00003.png) * | 1962-04-12 | |||
| US3619511A (en) * | 1969-07-17 | 1971-11-09 | North American Rockwell | Data normalizing apparatus |
| US3624299A (en) * | 1969-11-13 | 1971-11-30 | Applied Digital Data Syst | Apparatus and method |
| JPS57500957A (US20100268047A1-20101021-C00003.png) * | 1980-06-25 | 1982-05-27 | ||
| US4531208A (en) * | 1982-02-24 | 1985-07-23 | Rca Corporation | Apparatus and method for reducing telephone channel power loading |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1743132A (en) * | 1928-01-28 | 1930-01-14 | American Telephone & Telegraph | Equalization of carrier systems |
| US2248757A (en) * | 1939-06-07 | 1941-07-08 | Rca Corp | Compression-expansion system |
| US2231538A (en) * | 1939-06-21 | 1941-02-11 | Bell Telephone Labor Inc | Transmission control |
| DE734227C (de) * | 1941-01-30 | 1943-04-10 | Siemens Ag | Schaltungsanordnung zur Beseitigung nichtlinearer Verzerrungen |
| US2407259A (en) * | 1941-07-09 | 1946-09-10 | Bell Telephone Labor Inc | Transmission control in signaling systems |
| NL77653C (US20100268047A1-20101021-C00003.png) * | 1944-12-23 | |||
| 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 |
| US2521733A (en) * | 1948-02-03 | 1950-09-12 | Fed Telecomm Lab Inc | Pulse code modulator |
-
0
- BE BE519369D patent/BE519369A/xx unknown
-
1952
- 1952-04-23 US US283857A patent/US2795650A/en not_active Expired - Lifetime
-
1953
- 1953-03-13 GB GB6974/53A patent/GB724302A/en not_active Expired
- 1953-04-22 DE DEI7156A patent/DE1005126B/de active Pending
- 1953-04-22 CH CH329944D patent/CH329944A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH329944A (fr) | 1958-05-15 |
| US2795650A (en) | 1957-06-11 |
| DE1005126B (de) | 1957-03-28 |
| GB724302A (en) | 1955-02-16 |
