CA1248625A - Methode de transmission de signaux cles pour brouiller une image de television - Google Patents

Methode de transmission de signaux cles pour brouiller une image de television

Info

Publication number: CA1248625A
Authority: CA; Canada
Prior art keywords: signal; circuit; picture; signals; key
Prior art date: 1982-06-29
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA000431291A

Other languages

English (en)

Inventor

Yoshifumi Saeki

Shigeru Watanabe

Ryuichi Todoroki

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Pioneer Corp

Original Assignee

Pioneer Electronic Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1982-06-29

Filing date

1983-06-28

Publication date

1989-01-10

1983-06-28 Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp

1989-01-10 Application granted granted Critical

1989-01-10 Publication of CA1248625A publication Critical patent/CA1248625A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 45
238000006243 chemical reaction Methods 0.000 claims description 31
230000000694 effects Effects 0.000 claims description 11
241000282979 Alces alces Species 0.000 claims 1
238000007906 compression Methods 0.000 abstract description 37
230000006835 compression Effects 0.000 abstract description 29
238000010079 rubber tapping Methods 0.000 abstract description 8
230000005540 biological transmission Effects 0.000 abstract description 2
238000000926 separation method Methods 0.000 description 20
230000010355 oscillation Effects 0.000 description 14
230000008569 process Effects 0.000 description 9
238000001514 detection method Methods 0.000 description 7
230000003321 amplification Effects 0.000 description 6
230000035559 beat frequency Effects 0.000 description 6
238000003199 nucleic acid amplification method Methods 0.000 description 6
230000002093 peripheral effect Effects 0.000 description 6
230000008859 change Effects 0.000 description 4
230000002411 adverse Effects 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
230000006378 damage Effects 0.000 description 3
238000010586 diagram Methods 0.000 description 3
230000004044 response Effects 0.000 description 3
230000009471 action Effects 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
230000006870 function Effects 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
PVCPWBCCWVKROB-UHFFFAOYSA-N 3-[3-(2-carboxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecan-9-yl]propanoic acid Chemical class C1OC(CCC(=O)O)OCC21COC(CCC(O)=O)OC2 PVCPWBCCWVKROB-UHFFFAOYSA-N 0.000 description 1
235000004507 Abies alba Nutrition 0.000 description 1
241000191291 Abies alba Species 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
239000000543 intermediate Substances 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
239000010453 quartz Substances 0.000 description 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
230000005236 sound signal Effects 0.000 description 1
230000001360 synchronised effect Effects 0.000 description 1
XLNZEKHULJKQBA-UHFFFAOYSA-N terbufos Chemical compound CCOP(=S)(OCC)SCSC(C)(C)C XLNZEKHULJKQBA-UHFFFAOYSA-N 0.000 description 1
NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical group [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 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
- H04N7/162—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)

CA000431291A 1982-06-29 1983-06-28 Methode de transmission de signaux cles pour brouiller une image de television Expired CA1248625A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP113401/82		1982-06-29
JP57113401A JPS594285A (ja)	1982-06-29	1982-06-29	テレビ映像のスクランブルにおけるキ−信号送出方法

Publications (1)

Publication Number	Publication Date
CA1248625A true CA1248625A (fr)	1989-01-10

Family

ID=14611357

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000431291A Expired CA1248625A (fr)	1982-06-29	1983-06-28	Methode de transmission de signaux cles pour brouiller une image de television

Country Status (2)

Country	Link
JP (1)	JPS594285A (fr)
CA (1)	CA1248625A (fr)

1982
- 1982-06-29 JP JP57113401A patent/JPS594285A/ja active Pending
1983
- 1983-06-28 CA CA000431291A patent/CA1248625A/fr not_active Expired

Also Published As

Publication number	Publication date
JPS594285A (ja)	1984-01-11

Similar Documents

Publication	Publication Date	Title
CA1123949A (fr)	1982-05-18	Systeme de television par abonnement a haute securite utilisant le controle en temps reel de la reception de programmes par l'abonne
US5410360A (en)	1995-04-25	Timing control for injecting a burst and data into a video signal
CA1164991A (fr)	1984-04-03	Methode et dispositif de codage de signaux video par inversion du signe apres comparaison de niveaux de brillance
CA1175553A (fr)	1984-10-02	Systeme de codage et de decodage pour signaux video et audio
US4424532A (en)	1984-01-03	Coding and decoding system for video and audio signals
US4458268A (en)	1984-07-03	Sync displacement scrambling
EP0152309B1 (fr)	1992-01-22	Dispositif de traitement d'un signal de son de télévision
US2567539A (en)	1951-09-11	Subscriber television system
US4005265A (en)	1977-01-25	Videophone system synchronizer
EP0449633A1 (fr)	1991-10-02	Télévision à péage
CA1292056C (fr)	1991-11-12	Systeme de brouillage de signaux video
CA1227560A (fr)	1987-09-29	Methode de generation de signaux de cle pour le debrouillage des emissions de television
US4679078A (en)	1987-07-07	High security subscription television transmission system
CA1242794A (fr)	1988-10-04	Methode de brouillage des signaux de television
JPH027236B2 (fr)	1990-02-16
CA1248625A (fr)	1989-01-10	Methode de transmission de signaux cles pour brouiller une image de television
CA1205900A (fr)	1986-06-10	Dispositif de brouillage de signaux de television
US5272751A (en)	1993-12-21	Pay television
JPS5851678A (ja)	1983-03-26	テレビ映像のスクランブル方法およびその装置
EP0133190A1 (fr)	1985-02-20	Codage et décodage d'un signal de télévision
US5063594A (en)	1991-11-05	Video signal scrambling system
JPH0525438B2 (fr)	1993-04-12
CA1148251A (fr)	1983-06-14	Unite de commande pour abonne de systeme de television et methode d'utilisation
JP2722652B2 (ja)	1998-03-04	データ伝送装置
JP2856270B2 (ja)	1999-02-10	テレビジョン信号のスクランブル方式

Legal Events

Date	Code	Title	Description
2006-01-10	MKEX	Expiry
2022-09-10	MKEX	Expiry	Effective date: 20060110