DE69325599D1 - Verschlüsselung digitaler Sprache mit Hilfe eines Verschlüsselungsspeichers - Google Patents
Verschlüsselung digitaler Sprache mit Hilfe eines VerschlüsselungsspeichersInfo
- Publication number
- DE69325599D1 DE69325599D1 DE69325599T DE69325599T DE69325599D1 DE 69325599 D1 DE69325599 D1 DE 69325599D1 DE 69325599 T DE69325599 T DE 69325599T DE 69325599 T DE69325599 T DE 69325599T DE 69325599 D1 DE69325599 D1 DE 69325599D1
- Authority
- DE
- Germany
- Prior art keywords
- encryption
- memory
- digital speech
- speech
- digital
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/817,150 US5199074A (en) | 1992-01-06 | 1992-01-06 | Encryption system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69325599D1 true DE69325599D1 (de) | 1999-08-19 |
DE69325599T2 DE69325599T2 (de) | 2000-03-30 |
Family
ID=25222442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69325599T Expired - Fee Related DE69325599T2 (de) | 1992-01-06 | 1993-01-04 | Verschlüsselung digitaler Sprache mit Hilfe eines Verschlüsselungsspeichers |
Country Status (4)
Country | Link |
---|---|
US (1) | US5199074A (de) |
EP (1) | EP0553948B1 (de) |
JP (1) | JPH05336103A (de) |
DE (1) | DE69325599T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5455861A (en) * | 1991-12-09 | 1995-10-03 | At&T Corp. | Secure telecommunications |
US5412719A (en) * | 1992-01-17 | 1995-05-02 | Hitachi, Ltd. | Radio paging system with voice transfer function and radio pager |
US5471518A (en) * | 1993-08-10 | 1995-11-28 | Novatel Communications Ltd. | Method and apparatus for non-volatile data storage in radio telephones and the like |
US5943422A (en) | 1996-08-12 | 1999-08-24 | Intertrust Technologies Corp. | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
US7133846B1 (en) * | 1995-02-13 | 2006-11-07 | Intertrust Technologies Corp. | Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management |
US5892900A (en) * | 1996-08-30 | 1999-04-06 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US7124302B2 (en) * | 1995-02-13 | 2006-10-17 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US7143290B1 (en) * | 1995-02-13 | 2006-11-28 | Intertrust Technologies Corporation | Trusted and secure techniques, systems and methods for item delivery and execution |
US7095854B1 (en) * | 1995-02-13 | 2006-08-22 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US6658568B1 (en) * | 1995-02-13 | 2003-12-02 | Intertrust Technologies Corporation | Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management |
US20060206397A1 (en) * | 1995-02-13 | 2006-09-14 | Intertrust Technologies Corp. | Cryptographic methods, apparatus and systems for storage media electronic right management in closed and connected appliances |
US6157721A (en) * | 1996-08-12 | 2000-12-05 | Intertrust Technologies Corp. | Systems and methods using cryptography to protect secure computing environments |
US6948070B1 (en) | 1995-02-13 | 2005-09-20 | Intertrust Technologies Corporation | Systems and methods for secure transaction management and electronic rights protection |
CN1183841A (zh) * | 1995-02-13 | 1998-06-03 | 英特特拉斯特技术公司 | 用于安全交易管理和电子权利保护的系统和方法 |
US7133845B1 (en) * | 1995-02-13 | 2006-11-07 | Intertrust Technologies Corp. | System and methods for secure transaction management and electronic rights protection |
US5838683A (en) | 1995-03-13 | 1998-11-17 | Selsius Systems Inc. | Distributed interactive multimedia system architecture |
US7058067B1 (en) | 1995-03-13 | 2006-06-06 | Cisco Technology, Inc. | Distributed interactive multimedia system architecture |
FR2735603B1 (fr) * | 1995-06-16 | 1997-07-25 | Syseca | Decodeur de signal audionumerique crypte |
US5812669A (en) * | 1995-07-19 | 1998-09-22 | Jenkins; Lew | Method and system for providing secure EDI over an open network |
US6075858A (en) * | 1995-10-27 | 2000-06-13 | Scm Microsystems (U.S.) Inc. | Encryption key system and method |
US6463416B1 (en) * | 1996-07-15 | 2002-10-08 | Intelli-Check, Inc. | Authentication system for identification documents |
US20030118186A1 (en) * | 1997-10-30 | 2003-06-26 | Gilley James E. | Apparatus for and method for cipher check of an analog scrambler |
US7092914B1 (en) * | 1997-11-06 | 2006-08-15 | Intertrust Technologies Corporation | Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information |
US7708189B1 (en) | 2002-05-17 | 2010-05-04 | Cipriano Joseph J | Identification verification system and method |
US7860318B2 (en) | 2004-11-09 | 2010-12-28 | Intelli-Check, Inc | System and method for comparing documents |
US8217757B2 (en) * | 2007-12-20 | 2012-07-10 | Symbol Technologies, Inc. | Voice over RFID |
US8726037B2 (en) | 2011-09-27 | 2014-05-13 | Atmel Corporation | Encrypted memory access |
US10373409B2 (en) | 2014-10-31 | 2019-08-06 | Intellicheck, Inc. | Identification scan in compliance with jurisdictional or other rules |
IT201800006911A1 (it) * | 2018-07-04 | 2020-01-04 | Metodo di codifica e decodifica di informazioni digitali |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221931A (en) * | 1977-10-17 | 1980-09-09 | Harris Corporation | Time division multiplied speech scrambler |
US4379205A (en) * | 1979-06-22 | 1983-04-05 | Bell Telephone Laboratories, Incorporated | Analog signal scrambling system |
US4408093A (en) * | 1981-06-05 | 1983-10-04 | Itt Industries, Inc. | Cryptographic encoder-decoder |
FR2582174B1 (fr) * | 1985-05-15 | 1990-03-09 | Thomson Csf | Dispositif de chiffrement par substitutions-permutations |
US4791669A (en) * | 1985-11-30 | 1988-12-13 | Nec Corporation | Encryption/decryption system |
JPH01116846A (ja) * | 1987-10-30 | 1989-05-09 | Nec Corp | 半導体集積回路 |
US4914697A (en) * | 1988-02-01 | 1990-04-03 | Motorola, Inc. | Cryptographic method and apparatus with electronically redefinable algorithm |
GB2228650A (en) * | 1989-01-24 | 1990-08-29 | P C Hire Ltd | A data encryption device |
-
1992
- 1992-01-06 US US07/817,150 patent/US5199074A/en not_active Expired - Lifetime
- 1992-12-28 JP JP4348141A patent/JPH05336103A/ja active Pending
-
1993
- 1993-01-04 EP EP93300004A patent/EP0553948B1/de not_active Expired - Lifetime
- 1993-01-04 DE DE69325599T patent/DE69325599T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5199074A (en) | 1993-03-30 |
JPH05336103A (ja) | 1993-12-17 |
DE69325599T2 (de) | 2000-03-30 |
EP0553948B1 (de) | 1999-07-14 |
EP0553948A2 (de) | 1993-08-04 |
EP0553948A3 (en) | 1993-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |