IL65111A0 - Video scrambling and descrambling means using frequency dependent delay means - Google Patents
Video scrambling and descrambling means using frequency dependent delay meansInfo
- Publication number
- IL65111A0 IL65111A0 IL65111A IL6511182A IL65111A0 IL 65111 A0 IL65111 A0 IL 65111A0 IL 65111 A IL65111 A IL 65111A IL 6511182 A IL6511182 A IL 6511182A IL 65111 A0 IL65111 A0 IL 65111A0
- Authority
- IL
- Israel
- Prior art keywords
- frequency dependent
- dependent delay
- descrambling
- video scrambling
- delay means
- Prior art date
Links
- 230000001419 dependent effect Effects 0.000 title 1
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
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/169—Systems operating in the time domain of the television signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H15/00—Transversal filters
- H03H15/02—Transversal filters using analogue shift registers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24347781A | 1981-03-13 | 1981-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL65111A0 true IL65111A0 (en) | 1982-04-30 |
Family
ID=22918909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL65111A IL65111A0 (en) | 1981-03-13 | 1982-02-25 | Video scrambling and descrambling means using frequency dependent delay means |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS57168588A (en, 2012) |
| AU (1) | AU8120782A (en, 2012) |
| BR (1) | BR8201348A (en, 2012) |
| DE (1) | DE3209301A1 (en, 2012) |
| FR (1) | FR2501948A1 (en, 2012) |
| GB (1) | GB2095071A (en, 2012) |
| GR (1) | GR76055B (en, 2012) |
| IL (1) | IL65111A0 (en, 2012) |
| NL (1) | NL8201037A (en, 2012) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2186768B (en) * | 1985-04-19 | 1989-07-05 | Emc Datacare Ltd | Video display unit with improved security |
-
1982
- 1982-02-25 IL IL65111A patent/IL65111A0/xx unknown
- 1982-03-02 GB GB8206002A patent/GB2095071A/en not_active Withdrawn
- 1982-03-05 GR GR67500A patent/GR76055B/el unknown
- 1982-03-09 AU AU81207/82A patent/AU8120782A/en not_active Abandoned
- 1982-03-12 BR BR8201348A patent/BR8201348A/pt unknown
- 1982-03-12 NL NL8201037A patent/NL8201037A/nl not_active Application Discontinuation
- 1982-03-12 JP JP57039261A patent/JPS57168588A/ja active Pending
- 1982-03-12 FR FR8204179A patent/FR2501948A1/fr not_active Withdrawn
- 1982-03-15 DE DE19823209301 patent/DE3209301A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GR76055B (en, 2012) | 1984-08-03 |
| NL8201037A (nl) | 1982-10-01 |
| FR2501948A1 (fr) | 1982-09-17 |
| BR8201348A (pt) | 1983-01-25 |
| JPS57168588A (en) | 1982-10-16 |
| AU8120782A (en) | 1982-09-16 |
| GB2095071A (en) | 1982-09-22 |
| DE3209301A1 (de) | 1982-10-21 |
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