JPH0550172B2 - - Google Patents

Info

Publication number
JPH0550172B2
JPH0550172B2 JP2282076A JP28207690A JPH0550172B2 JP H0550172 B2 JPH0550172 B2 JP H0550172B2 JP 2282076 A JP2282076 A JP 2282076A JP 28207690 A JP28207690 A JP 28207690A JP H0550172 B2 JPH0550172 B2 JP H0550172B2
Authority
JP
Japan
Prior art keywords
key
identification code
decryption
data
group
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.)
Expired - Lifetime
Application number
JP2282076A
Other languages
English (en)
Japanese (ja)
Other versions
JPH03179841A (ja
Inventor
Naoki Ejima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2282076A priority Critical patent/JPH03179841A/ja
Publication of JPH03179841A publication Critical patent/JPH03179841A/ja
Publication of JPH0550172B2 publication Critical patent/JPH0550172B2/ja
Granted legal-status Critical Current

Links

JP2282076A 1990-10-19 1990-10-19 暗号デジタル放送受信装置 Granted JPH03179841A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2282076A JPH03179841A (ja) 1990-10-19 1990-10-19 暗号デジタル放送受信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2282076A JPH03179841A (ja) 1990-10-19 1990-10-19 暗号デジタル放送受信装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP58215410A Division JPS60107941A (ja) 1983-11-16 1983-11-16 暗号デジタル放送受信装置

Publications (2)

Publication Number Publication Date
JPH03179841A JPH03179841A (ja) 1991-08-05
JPH0550172B2 true JPH0550172B2 (enrdf_load_stackoverflow) 1993-07-28

Family

ID=17647816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2282076A Granted JPH03179841A (ja) 1990-10-19 1990-10-19 暗号デジタル放送受信装置

Country Status (1)

Country Link
JP (1) JPH03179841A (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05122702A (ja) * 1991-10-28 1993-05-18 Kokusai Denshin Denwa Co Ltd <Kdd> テレビジヨン信号の多重伝送秘話方式
JP3988172B2 (ja) * 1997-04-23 2007-10-10 ソニー株式会社 情報処理装置および方法、並びに記録媒体
US6373948B1 (en) * 1997-08-15 2002-04-16 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using program identifiers
DE10022014A1 (de) * 2000-05-05 2001-11-08 Kryptografics Gmbh Verfahren und Vorrichtung zur Sicherung der Vertraulichkeit und Abhörsicherheit bei der Kommunikation zwischen Rechnernetzen
US9100457B2 (en) 2001-03-28 2015-08-04 Qualcomm Incorporated Method and apparatus for transmission framing in a wireless communication system
US7352868B2 (en) 2001-10-09 2008-04-01 Philip Hawkes Method and apparatus for security in a data processing system
US7599655B2 (en) 2003-01-02 2009-10-06 Qualcomm Incorporated Method and apparatus for broadcast services in a communication system
KR101123598B1 (ko) * 2003-07-08 2012-03-20 퀄컴 인코포레이티드 데이터 프로세싱 시스템에서의 보안용 방법 및 장치
KR101383738B1 (ko) 2005-02-15 2014-04-08 톰슨 라이센싱 디지털 영화를 위한 키 관리 시스템

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459595A1 (fr) * 1979-06-15 1981-01-09 Telediffusion Fse Systeme de television a controle d'acces utilisant une cle electronique variable
US4389671A (en) * 1980-09-29 1983-06-21 Harris Corporation Digitally-controlled analog encrypton
JPS5892182A (ja) * 1981-11-27 1983-06-01 Clarion Co Ltd 無線式有料テレビジヨンシステム
JPS58131873A (ja) * 1982-01-30 1983-08-05 Sony Corp テレビジヨン信号伝送システム

Also Published As

Publication number Publication date
JPH03179841A (ja) 1991-08-05

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