NL8201037A - Inrichting voor het versluieren en ontsluieren van televisievideosignalen. - Google Patents
Inrichting voor het versluieren en ontsluieren van televisievideosignalen. Download PDFInfo
- Publication number
- NL8201037A NL8201037A NL8201037A NL8201037A NL8201037A NL 8201037 A NL8201037 A NL 8201037A NL 8201037 A NL8201037 A NL 8201037A NL 8201037 A NL8201037 A NL 8201037A NL 8201037 A NL8201037 A NL 8201037A
- Authority
- NL
- Netherlands
- Prior art keywords
- video signal
- frequency
- filter
- television video
- delay
- Prior art date
Links
- 238000012216 screening Methods 0.000 title 1
- 230000001419 dependent effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000010897 surface acoustic wave method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 241001417501 Lobotidae Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000019646 color tone Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009990 desizing Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 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)
- Filters That Use Time-Delay Elements (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24347781A | 1981-03-13 | 1981-03-13 | |
| US24347781 | 1981-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8201037A true NL8201037A (nl) | 1982-10-01 |
Family
ID=22918909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8201037A NL8201037A (nl) | 1981-03-13 | 1982-03-12 | Inrichting voor het versluieren en ontsluieren van televisievideosignalen. |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS57168588A (enExample) |
| AU (1) | AU8120782A (enExample) |
| BR (1) | BR8201348A (enExample) |
| DE (1) | DE3209301A1 (enExample) |
| FR (1) | FR2501948A1 (enExample) |
| GB (1) | GB2095071A (enExample) |
| GR (1) | GR76055B (enExample) |
| IL (1) | IL65111A0 (enExample) |
| NL (1) | NL8201037A (enExample) |
Families Citing this family (2)
| 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 |
| USD959894S1 (en) * | 2019-12-06 | 2022-08-09 | Re-Lid Engineering Ag | Can end |
-
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 FR FR8204179A patent/FR2501948A1/fr not_active Withdrawn
- 1982-03-12 JP JP57039261A patent/JPS57168588A/ja active Pending
- 1982-03-12 NL NL8201037A patent/NL8201037A/nl not_active Application Discontinuation
- 1982-03-12 BR BR8201348A patent/BR8201348A/pt unknown
- 1982-03-15 DE DE19823209301 patent/DE3209301A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BR8201348A (pt) | 1983-01-25 |
| IL65111A0 (en) | 1982-04-30 |
| DE3209301A1 (de) | 1982-10-21 |
| AU8120782A (en) | 1982-09-16 |
| FR2501948A1 (fr) | 1982-09-17 |
| GR76055B (enExample) | 1984-08-03 |
| JPS57168588A (en) | 1982-10-16 |
| GB2095071A (en) | 1982-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |