DE3855977D1 - Digitaler Datenprozessor mit Datenentschlüsselungsfunktion - Google Patents

Digitaler Datenprozessor mit Datenentschlüsselungsfunktion

Info

Publication number
DE3855977D1
DE3855977D1 DE3855977T DE3855977T DE3855977D1 DE 3855977 D1 DE3855977 D1 DE 3855977D1 DE 3855977 T DE3855977 T DE 3855977T DE 3855977 T DE3855977 T DE 3855977T DE 3855977 D1 DE3855977 D1 DE 3855977D1
Authority
DE
Germany
Prior art keywords
decryption function
data
digital data
data processor
processor
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 - Fee Related
Application number
DE3855977T
Other languages
English (en)
Other versions
DE3855977T2 (de
Inventor
Kazuhiro Akiyama
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.)
NEC Electronics Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3855977D1 publication Critical patent/DE3855977D1/de
Publication of DE3855977T2 publication Critical patent/DE3855977T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/76—Arrangements for rearranging, permuting or selecting data according to predetermined rules, independently of the content of the data
    • G06F7/78—Arrangements for rearranging, permuting or selecting data according to predetermined rules, independently of the content of the data for changing the order of data flow, e.g. matrix transposition or LIFO buffers; Overflow or underflow handling therefor
    • G06F7/785—Arrangements for rearranging, permuting or selecting data according to predetermined rules, independently of the content of the data for changing the order of data flow, e.g. matrix transposition or LIFO buffers; Overflow or underflow handling therefor having a sequence of storage locations each being individually accessible for both enqueue and dequeue operations, e.g. using a RAM
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1809—Pulse code modulation systems for audio signals by interleaving
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C8/00—Arrangements for selecting an address in a digital store
    • G11C8/16—Multiple access memory array, e.g. addressing one storage element via at least two independent addressing line groups
DE3855977T 1987-10-30 1988-10-31 Digitaler Datenprozessor mit Datenentschlüsselungsfunktion Expired - Fee Related DE3855977T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62276622A JPH01116846A (ja) 1987-10-30 1987-10-30 半導体集積回路

Publications (2)

Publication Number Publication Date
DE3855977D1 true DE3855977D1 (de) 1997-09-04
DE3855977T2 DE3855977T2 (de) 1997-12-04

Family

ID=17572003

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3855977T Expired - Fee Related DE3855977T2 (de) 1987-10-30 1988-10-31 Digitaler Datenprozessor mit Datenentschlüsselungsfunktion

Country Status (4)

Country Link
US (1) US5046095A (de)
EP (1) EP0314524B1 (de)
JP (1) JPH01116846A (de)
DE (1) DE3855977T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5199074A (en) * 1992-01-06 1993-03-30 Advanced Micro Devices, Inc. Encryption system
KR100254155B1 (ko) * 1994-06-07 2000-04-15 모리시타 요이찌 광학 정보 기록 매체, 광학 정보 기록 방법, 및 이 방법을 사용한 광학 정보 재생 장치
KR100201396B1 (ko) * 1996-07-20 1999-06-15 구본준 이피롬의 비화코드 해독 방지회로
KR100223634B1 (ko) * 1997-01-15 1999-10-15 윤종용 고속 데이타 처리 및 전송을 위한 에러정정용 메모리를 구비하는 시스템 디코더 및 에러정정용 메모리 제어방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922643A (en) * 1974-09-04 1975-11-25 Gte Sylvania Inc Memory and memory addressing system
US4087626A (en) * 1976-08-04 1978-05-02 Rca Corporation Scrambler and unscrambler for serial data
US4281355A (en) * 1978-02-01 1981-07-28 Matsushita Electric Industrial Co., Ltd. Digital audio signal recorder
US4465901A (en) * 1979-06-04 1984-08-14 Best Robert M Crypto microprocessor that executes enciphered programs
US4320466A (en) * 1979-10-26 1982-03-16 Texas Instruments Incorporated Address sequence mechanism for reordering data continuously over some interval using a single memory structure
US4661980A (en) * 1982-06-25 1987-04-28 The United States Of America As Represented By The Secretary Of The Navy Intercept resistant data transmission system
JPS59126342A (ja) * 1983-01-10 1984-07-20 Nec Corp デジタル音声信号伝送方式
US4623990A (en) * 1984-10-31 1986-11-18 Advanced Micro Devices, Inc. Dual-port read/write RAM with single array
US4797928A (en) * 1987-01-07 1989-01-10 Miu Automation Encryption printed circuit board
US4771462A (en) * 1987-02-18 1988-09-13 Hannan Forrest A Communication port encryption/decryption method and apparatus

Also Published As

Publication number Publication date
EP0314524B1 (de) 1997-07-30
US5046095A (en) 1991-09-03
JPH01116846A (ja) 1989-05-09
EP0314524A3 (de) 1991-07-17
DE3855977T2 (de) 1997-12-04
EP0314524A2 (de) 1989-05-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEC ELECTRONICS CORP., KAWASAKI, KANAGAWA, JP

8339 Ceased/non-payment of the annual fee