JPS6449446A - Decoder control system - Google Patents

Decoder control system

Info

Publication number
JPS6449446A
JPS6449446A JP62205191A JP20519187A JPS6449446A JP S6449446 A JPS6449446 A JP S6449446A JP 62205191 A JP62205191 A JP 62205191A JP 20519187 A JP20519187 A JP 20519187A JP S6449446 A JPS6449446 A JP S6449446A
Authority
JP
Japan
Prior art keywords
basic software
memory
software
new
stored
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
Application number
JP62205191A
Other languages
Japanese (ja)
Other versions
JP2592462B2 (en
Inventor
Masanori Saito
Seiichi Nanba
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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.)
Filing date
Publication date
Application filed by Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP62205191A priority Critical patent/JP2592462B2/en
Publication of JPS6449446A publication Critical patent/JPS6449446A/en
Application granted granted Critical
Publication of JP2592462B2 publication Critical patent/JP2592462B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Stored Programmes (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

PURPOSE:To change the performance of a receiver by changing basic software, by providing a memory in which new basic software is stored and the memory in which the software current in use is stored. CONSTITUTION:Received new software is stored in a buffer memory 34. A latch circuit 38 latches a basic software switching command signal from a broadcasting station side at the time of receiving a basic software switching command. Interruption is applied on a CPU 36 when a switchable timing signal is set a high level, then, a basic software transfer program 37 is executed. The transfer program resets an AND39, and inspects the content of the new basic software by using an erroneous qualifier, etc. When a satisfactory inspection result can be obtained, the new basic software in the memory 34 is transferred to a working memory 35, and control is delivered to an OOOOH, then, the new basic software is started, When no satisfactory inspection result is obtained, no transferr is performed.
JP62205191A 1987-08-20 1987-08-20 Broadcast receiver Expired - Lifetime JP2592462B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205191A JP2592462B2 (en) 1987-08-20 1987-08-20 Broadcast receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205191A JP2592462B2 (en) 1987-08-20 1987-08-20 Broadcast receiver

Publications (2)

Publication Number Publication Date
JPS6449446A true JPS6449446A (en) 1989-02-23
JP2592462B2 JP2592462B2 (en) 1997-03-19

Family

ID=16502910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205191A Expired - Lifetime JP2592462B2 (en) 1987-08-20 1987-08-20 Broadcast receiver

Country Status (1)

Country Link
JP (1) JP2592462B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09116878A (en) * 1995-10-23 1997-05-02 Dentsu:Kk Teletext reception system and teletext reception system control method
JP2001127747A (en) * 1999-10-25 2001-05-11 Toshiba Corp Information encryption / decryption device
JP2003067284A (en) * 2001-08-30 2003-03-07 Sharp Corp Digital broadcast receiver
US7110548B1 (en) 1998-07-31 2006-09-19 Hatachi Ltd Cryptographic communication method, encryption algorithm shared control method, encryption algorithm conversion method and network communication system
KR100642967B1 (en) * 1997-03-13 2006-12-22 소니 가부시끼 가이샤 Data receiving device and data receiving method
JP2008113104A (en) * 2006-10-30 2008-05-15 Hitachi Ltd Content decryption key extraction method and content reception device
JP2008160865A (en) * 2008-01-15 2008-07-10 Sony Corp Receiving apparatus and receiving method
JP2008219898A (en) * 2008-03-04 2008-09-18 Sony Corp Receiving apparatus and receiving method
JP2014517649A (en) * 2011-06-21 2014-07-17 イルデト・ベー・フェー Receiver software protection
US9407972B2 (en) 1998-08-28 2016-08-02 Canon Kabushiki Kaisha Data processor, program updating method and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115147A (en) * 1979-02-28 1980-09-04 Nippon Steel Corp Backup method of program
JPS57105896A (en) * 1980-12-23 1982-07-01 Fujitsu Ltd Dual alteration system
US4484025A (en) * 1980-02-04 1984-11-20 Licentia Patent-Verwaltungs-Gmbh System for enciphering and deciphering data
JPS6032449A (en) * 1983-08-01 1985-02-19 Matsushita Electric Ind Co Ltd Ciphered digital broadcast equipment
JPS63220630A (en) * 1987-03-10 1988-09-13 Matsushita Electric Ind Co Ltd Terminal control method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115147A (en) * 1979-02-28 1980-09-04 Nippon Steel Corp Backup method of program
US4484025A (en) * 1980-02-04 1984-11-20 Licentia Patent-Verwaltungs-Gmbh System for enciphering and deciphering data
JPS57105896A (en) * 1980-12-23 1982-07-01 Fujitsu Ltd Dual alteration system
JPS6032449A (en) * 1983-08-01 1985-02-19 Matsushita Electric Ind Co Ltd Ciphered digital broadcast equipment
JPS63220630A (en) * 1987-03-10 1988-09-13 Matsushita Electric Ind Co Ltd Terminal control method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09116878A (en) * 1995-10-23 1997-05-02 Dentsu:Kk Teletext reception system and teletext reception system control method
KR100642967B1 (en) * 1997-03-13 2006-12-22 소니 가부시끼 가이샤 Data receiving device and data receiving method
US7110548B1 (en) 1998-07-31 2006-09-19 Hatachi Ltd Cryptographic communication method, encryption algorithm shared control method, encryption algorithm conversion method and network communication system
US9407972B2 (en) 1998-08-28 2016-08-02 Canon Kabushiki Kaisha Data processor, program updating method and storage medium
JP2001127747A (en) * 1999-10-25 2001-05-11 Toshiba Corp Information encryption / decryption device
JP2003067284A (en) * 2001-08-30 2003-03-07 Sharp Corp Digital broadcast receiver
JP2008113104A (en) * 2006-10-30 2008-05-15 Hitachi Ltd Content decryption key extraction method and content reception device
JP2008160865A (en) * 2008-01-15 2008-07-10 Sony Corp Receiving apparatus and receiving method
JP2008219898A (en) * 2008-03-04 2008-09-18 Sony Corp Receiving apparatus and receiving method
JP2014517649A (en) * 2011-06-21 2014-07-17 イルデト・ベー・フェー Receiver software protection

Also Published As

Publication number Publication date
JP2592462B2 (en) 1997-03-19

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