BE473048A - - Google Patents
Info
- Publication number
- BE473048A BE473048A BE473048DA BE473048A BE 473048 A BE473048 A BE 473048A BE 473048D A BE473048D A BE 473048DA BE 473048 A BE473048 A BE 473048A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/02—Amplitude modulation, i.e. PAM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1637841A GB580843A (en) | 1941-12-18 | 1941-12-18 | Improvements in or relating to secrecy communication systems |
| GB1493842A GB582709A (en) | 1941-12-18 | 1942-10-23 | Improvements in or relating to secrecy communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473048A true BE473048A (de) |
Family
ID=32178905
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471102D BE471102A (de) | 1941-12-18 | ||
| BE473048D BE473048A (de) | 1941-12-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471102D BE471102A (de) | 1941-12-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2412964A (de) |
| BE (2) | BE473048A (de) |
| FR (2) | FR939295A (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177485A (en) * | 1944-09-06 | 1979-12-04 | Prehn Lawrence D | Facsimile apparatus |
| US2836657A (en) * | 1944-11-20 | 1958-05-27 | Gen Electric | Secrecy communication system |
| US2460326A (en) * | 1945-02-17 | 1949-02-01 | Clarence M Woodruff | Transmitter |
| US2466230A (en) * | 1946-02-09 | 1949-04-05 | Stromberg Carlson Co | Pulse time modulation system |
| US2616975A (en) * | 1947-02-06 | 1952-11-04 | Rca Corp | Time division multiplex system |
| US2589617A (en) * | 1947-07-07 | 1952-03-18 | Alfred C Kowalski | Pulse amplitude modulation communication system |
| US3991268A (en) * | 1948-12-24 | 1976-11-09 | Bell Telephone Laboratories, Incorporated | PCM communication system with pulse deletion |
| US2699544A (en) * | 1949-03-30 | 1955-01-11 | Olive S Petty | Distance measuring system |
| US2664462A (en) * | 1949-08-31 | 1953-12-29 | Rca Corp | Multiplexed signal transmission |
| US3569625A (en) * | 1961-04-27 | 1971-03-09 | Us Navy | Telemetry data transmission system |
| BE646982A (de) * | 1963-04-23 | |||
| FR95619E (fr) * | 1966-05-05 | 1971-03-26 | It Telecommunicazioni Siemens | Systeme de transmission de signaux téléphoniques a allocation de temps. |
| IT1227123B (it) * | 1988-09-30 | 1991-03-15 | Samanta Italia S P A | Procedimento e macchina per la sigillatura di fogli di carta |
-
0
- BE BE471102D patent/BE471102A/xx unknown
- BE BE473048D patent/BE473048A/xx unknown
-
1943
- 1943-08-28 US US500416A patent/US2412964A/en not_active Expired - Lifetime
-
1946
- 1946-08-29 FR FR939295D patent/FR939295A/fr not_active Expired
- 1946-11-27 FR FR939428D patent/FR939428A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2412964A (en) | 1946-12-24 |
| BE471102A (de) | |
| FR939295A (fr) | 1948-11-09 |
| FR939428A (fr) | 1948-11-15 |