BE526655A - - Google Patents
Info
- Publication number
- BE526655A BE526655A BE526655DA BE526655A BE 526655 A BE526655 A BE 526655A BE 526655D A BE526655D A BE 526655DA BE 526655 A BE526655 A BE 526655A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US338032A US2910553A (en) | 1953-02-20 | 1953-02-20 | Subscription television encoding apparatus |
| US40719254 US2866961A (en) | 1953-02-20 | 1954-02-01 | Subscription television encoding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE526655A true BE526655A (ja) | 1956-08-17 |
Family
ID=26990998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE526655D BE526655A (ja) | 1953-02-20 | 1954-02-20 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2866961A (ja) |
| BE (1) | BE526655A (ja) |
| CH (1) | CH333034A (ja) |
| DE (1) | DE946068C (ja) |
| FR (1) | FR1099999A (ja) |
| GB (1) | GB756758A (ja) |
| NL (1) | NL111338C (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2931854A (en) * | 1955-11-18 | 1960-04-05 | Zenith Radio Corp | Filter-rectifier-gate circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2539556A (en) * | 1941-07-11 | 1951-01-30 | Bell Telephone Labor Inc | Variable delay speech privacy system |
| US2414101A (en) * | 1943-06-04 | 1947-01-14 | Faximile Inc | Graphic privacy system |
| US2554507A (en) * | 1947-08-11 | 1951-05-29 | Faximile Inc | Ciphering device |
-
1954
- 1954-02-01 US US40719254 patent/US2866961A/en not_active Expired - Lifetime
- 1954-02-08 GB GB360154A patent/GB756758A/en not_active Expired
- 1954-02-18 FR FR1099999D patent/FR1099999A/fr not_active Expired
- 1954-02-19 CH CH333034D patent/CH333034A/de unknown
- 1954-02-19 NL NL185255A patent/NL111338C/xx active
- 1954-02-19 DE DEZ4009A patent/DE946068C/de not_active Expired
- 1954-02-20 BE BE526655D patent/BE526655A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1099999A (fr) | 1955-09-14 |
| CH333034A (de) | 1958-09-30 |
| GB756758A (en) | 1956-09-12 |
| NL111338C (ja) | 1965-06-15 |
| DE946068C (de) | 1956-07-26 |
| US2866961A (en) | 1958-12-30 |