JPH0241046A - 解読鍵の伝送方式 - Google Patents
解読鍵の伝送方式Info
- Publication number
- JPH0241046A JPH0241046A JP63190599A JP19059988A JPH0241046A JP H0241046 A JPH0241046 A JP H0241046A JP 63190599 A JP63190599 A JP 63190599A JP 19059988 A JP19059988 A JP 19059988A JP H0241046 A JPH0241046 A JP H0241046A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- gate
- key
- output
- memory
- Prior art date
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims description 13
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000015654 memory Effects 0.000 abstract description 40
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 11
- 238000012937 correction Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190599A JPH0241046A (ja) | 1988-08-01 | 1988-08-01 | 解読鍵の伝送方式 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190599A JPH0241046A (ja) | 1988-08-01 | 1988-08-01 | 解読鍵の伝送方式 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241046A true JPH0241046A (ja) | 1990-02-09 |
| JPH0530114B2 JPH0530114B2 (enrdf_load_stackoverflow) | 1993-05-07 |
Family
ID=16260748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63190599A Granted JPH0241046A (ja) | 1988-08-01 | 1988-08-01 | 解読鍵の伝送方式 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241046A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164046A (ja) * | 1996-11-29 | 1998-06-19 | Canon Inc | 送信方法、受信方法、送信装置、受信装置、伝送システム及び媒体 |
| JP2002204229A (ja) * | 2000-12-27 | 2002-07-19 | Sony Corp | 暗号化装置、暗号化方法、暗号復号化装置、暗号復号化方法及び暗号化システム |
-
1988
- 1988-08-01 JP JP63190599A patent/JPH0241046A/ja active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164046A (ja) * | 1996-11-29 | 1998-06-19 | Canon Inc | 送信方法、受信方法、送信装置、受信装置、伝送システム及び媒体 |
| US7113926B1 (en) | 1996-11-29 | 2006-09-26 | Canon Kabushiki Kaisha | Secure media on demand system whereby charge is determined in part from the periodicity of an encryption key |
| JP2002204229A (ja) * | 2000-12-27 | 2002-07-19 | Sony Corp | 暗号化装置、暗号化方法、暗号復号化装置、暗号復号化方法及び暗号化システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530114B2 (enrdf_load_stackoverflow) | 1993-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0508654B1 (en) | Virtual channels for a multiplexed analog component (MAC) television system | |
| EP0200310B1 (en) | Direct broadcast satellite signal transmission system | |
| EP0318507B1 (en) | Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system | |
| US4829569A (en) | Communication of individual messages to subscribers in a subscription television system | |
| US4890319A (en) | Method for controlling copying of protected information transmitted over a communications link | |
| US5224161A (en) | Method of scrambling and of unscrambling composite video signals, and device for implementation | |
| US5764773A (en) | Repeating device, decoder device and concealment broadcasting | |
| US6487720B1 (en) | Apparatus for receiving digital broadcast signal and apparatus for recording and reproducing digital broadcast information included in the digital broadcast signal | |
| WO1986007224A1 (en) | Method and apparatus for scrambling and descrambling television signals | |
| AU656873B2 (en) | System for broadband descrambling of sync suppressed television signals | |
| JPH02279083A (ja) | データ受信装置 | |
| US5745482A (en) | Repeating device | |
| US5530756A (en) | Television scrambling and descrambling method, and transmitter and receiver using said method | |
| JPH0241046A (ja) | 解読鍵の伝送方式 | |
| JPS62189A (ja) | 有料放送方式 | |
| JPH08331542A (ja) | デスクランブル装置、視聴履歴受信装置、並びにスクランブル放送システムおよびスクランブル放送方法 | |
| JP2829974B2 (ja) | 信号処理装置 | |
| JP2542584B2 (ja) | 加入放送システム | |
| JP2865733B2 (ja) | スクランブル放送方式 | |
| JPH0946674A (ja) | 受信装置および視聴履歴送信方法、送信装置および送信方法、並びに放送システム | |
| JPH04298186A (ja) | 有料放送信号伝送システム | |
| JPH03239035A (ja) | スクランブル信号の受信装置 | |
| JPH03239034A (ja) | スクランブル信号の送信方式及びその受信装置 | |
| JPH06253307A (ja) | テレビジョン信号のスクランブル方法及び装置 | |
| JPS62227288A (ja) | 映像信号伝送装置 |