NL112140C - - Google Patents
Info
- Publication number
- NL112140C NL112140C NL112140DA NL112140C NL 112140 C NL112140 C NL 112140C NL 112140D A NL112140D A NL 112140DA NL 112140 C NL112140 C NL 112140C
- Authority
- NL
- Netherlands
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/169—Systems operating in the time domain of the television signal
- H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Radio Relay Systems (AREA)
- Television Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US326107A US2823252A (en) | 1952-12-15 | 1952-12-15 | Subscription television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL112140C true NL112140C (en17) |
Family
ID=23270844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL112140D NL112140C (en17) | 1952-12-15 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2823252A (en17) |
| BE (1) | BE523632A (en17) |
| CH (1) | CH329224A (en17) |
| DE (1) | DE1058096B (en17) |
| FR (1) | FR1089289A (en17) |
| GB (1) | GB742140A (en17) |
| NL (1) | NL112140C (en17) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947804A (en) * | 1954-10-21 | 1960-08-02 | Zenith Radio Corp | Secrecy communication |
| BE542227A (en17) * | 1954-10-21 | |||
| US2961481A (en) * | 1954-12-30 | 1960-11-22 | Hammond | Secrecy television |
| US4638357A (en) * | 1984-01-20 | 1987-01-20 | Home Box Office, Inc. | Audio scrambler |
| US5402488A (en) * | 1991-08-30 | 1995-03-28 | Karlock; James A. | Method and apparatus for modifying a video signal |
| DE102009046059A1 (de) * | 2009-10-27 | 2011-04-28 | Drescher, Ernst-Peter, Dr. | Verfahren zum Betreiben einer Eingabevorrichtung, Eingabevorrichtung, Automat mit einer Eingabevorrichtung sowie Verwendung einer Eingabevorrichtung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2414101A (en) * | 1943-06-04 | 1947-01-14 | Faximile Inc | Graphic privacy system |
| US2472774A (en) * | 1945-10-17 | 1949-06-07 | Farnsworth Res Corp | Irregular interlace scanning system |
| US2656407A (en) * | 1949-02-12 | 1953-10-20 | Zenith Radio Corp | Subscriber signaling system |
| CH281914A (de) * | 1950-03-06 | 1952-03-31 | Zenith Radio Corp | Sender zur Übertragung eines chiffrierten Nachrichtensignals. |
| GB675062A (en) * | 1950-05-08 | 1952-07-02 | Zenith Radio Corp | Improvements in television receivers |
| US2664260A (en) * | 1951-04-21 | 1953-12-29 | Conveyor Company Inc | Automatic dispensing, weighing, and recording apparatus |
-
0
- NL NL112140D patent/NL112140C/xx active
- BE BE523632D patent/BE523632A/xx unknown
-
1952
- 1952-12-15 US US326107A patent/US2823252A/en not_active Expired - Lifetime
-
1953
- 1953-09-11 GB GB25163/53A patent/GB742140A/en not_active Expired
- 1953-10-13 FR FR1089289D patent/FR1089289A/fr not_active Expired
- 1953-10-15 DE DEZ3740A patent/DE1058096B/de active Pending
- 1953-10-19 CH CH329224D patent/CH329224A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1089289A (fr) | 1955-03-16 |
| GB742140A (en) | 1955-12-21 |
| CH329224A (de) | 1958-04-15 |
| DE1058096B (de) | 1959-05-27 |
| US2823252A (en) | 1958-02-11 |
| BE523632A (en17) |