DE69435009D1 - Einrichtung zur Verschlüsselung und Entschlüsselung von Audiosignalen - Google Patents

Einrichtung zur Verschlüsselung und Entschlüsselung von Audiosignalen

Info

Publication number
DE69435009D1
DE69435009D1 DE69435009T DE69435009T DE69435009D1 DE 69435009 D1 DE69435009 D1 DE 69435009D1 DE 69435009 T DE69435009 T DE 69435009T DE 69435009 T DE69435009 T DE 69435009T DE 69435009 D1 DE69435009 D1 DE 69435009D1
Authority
DE
Germany
Prior art keywords
encrypting
audio signals
decrypting audio
decrypting
signals
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
DE69435009T
Other languages
English (en)
Other versions
DE69435009T2 (de
Inventor
Susumu Ibaraki
Noboru Katta
Seiji Nakamura
Hiroki Murakami
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 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
Priority claimed from JP5254183A external-priority patent/JPH07111497A/ja
Priority claimed from JP5306386A external-priority patent/JPH07162413A/ja
Priority claimed from JP5306387A external-priority patent/JPH07162411A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69435009D1 publication Critical patent/DE69435009D1/de
Application granted granted Critical
Publication of DE69435009T2 publication Critical patent/DE69435009T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69435009T 1993-10-12 1994-10-10 Einrichtung zur Verschlüsselung und Entschlüsselung von Audiosignalen Expired - Fee Related DE69435009T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP5254183A JPH07111497A (ja) 1993-10-12 1993-10-12 音声スクランブル装置および音声デスクランブル装置
JP25418393 1993-10-12
JP30638693 1993-12-07
JP30638793 1993-12-07
JP5306386A JPH07162413A (ja) 1993-12-07 1993-12-07 音声スクランブル・デスクランブル装置
JP5306387A JPH07162411A (ja) 1993-12-07 1993-12-07 暗号方法および暗号装置

Publications (2)

Publication Number Publication Date
DE69435009D1 true DE69435009D1 (de) 2007-09-13
DE69435009T2 DE69435009T2 (de) 2008-04-17

Family

ID=27334304

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69435009T Expired - Fee Related DE69435009T2 (de) 1993-10-12 1994-10-10 Einrichtung zur Verschlüsselung und Entschlüsselung von Audiosignalen

Country Status (3)

Country Link
US (2) US5617476A (de)
EP (1) EP0648031B1 (de)
DE (1) DE69435009T2 (de)

Families Citing this family (19)

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US5930367A (en) * 1995-08-31 1999-07-27 Sony Corporation Apparatus for recording/reproducing or transmitting/receiving signal data having a portion of an error correction code replaced with other information and methods thereof
US5832057A (en) * 1996-05-23 1998-11-03 Furman; Elliot M. Lockout device for preventing telephone eavesdropping from an extension device, and method
US6317123B1 (en) 1996-09-20 2001-11-13 Laboratory Technologies Corp. Progressively generating an output stream with realtime properties from a representation of the output stream which is not monotonic with regard to time
US6067566A (en) * 1996-09-20 2000-05-23 Laboratory Technologies Corporation Methods and apparatus for distributing live performances on MIDI devices via a non-real-time network protocol
WO1998012876A1 (en) * 1996-09-20 1998-03-26 Laboratory Technologies Corporation Methods and apparatus for encrypting and decrypting midi files
US6256491B1 (en) 1997-12-31 2001-07-03 Transcript International, Inc. Voice security between a composite channel telephone communications link and a telephone
US7702550B2 (en) * 1999-03-31 2010-04-20 New Market Solutions, Llc Multiple computer system supporting a private constant-dollar financial product
US8392302B2 (en) * 1999-03-31 2013-03-05 Task Management, Inc. Computer-aided process for inflation-immunized derivatives
US6658112B1 (en) * 1999-08-06 2003-12-02 General Dynamics Decision Systems, Inc. Voice decoder and method for detecting channel errors using spectral energy evolution
KR20010057593A (ko) * 1999-12-17 2001-07-05 박종섭 이동통신 시스템에서의 음성 및 데이타 암호화/복호화장치및 그 방법
JP3504210B2 (ja) * 2000-03-31 2004-03-08 理想科学工業株式会社 画像処理装置
US7068788B2 (en) * 2001-01-04 2006-06-27 Maxim Integrated Products, Inc. Data encryption for suppression of data-related in-band harmonics in digital to analog converters
KR100430525B1 (ko) * 2001-12-17 2004-05-10 한국전자통신연구원 디지털 케이블 방송 시스템에서의 전송 스트림 처리장치와방법 및 그것을 위한 지연제어장치
US7143028B2 (en) * 2002-07-24 2006-11-28 Applied Minds, Inc. Method and system for masking speech
JP4581334B2 (ja) * 2003-04-08 2010-11-17 ソニー株式会社 データ伝送装置及びデータ受信装置
US8243774B2 (en) * 2007-01-03 2012-08-14 Samsung Electronics Co., Ltd. System and method for information scrambling in a wireless communication system
CN101843067A (zh) * 2007-10-30 2010-09-22 京瓷株式会社 无线通信系统、基站、终端以及无线通信方法
US10681547B1 (en) * 2019-05-22 2020-06-09 Frank Yang Access verification network device and method
CN112422360A (zh) * 2020-10-14 2021-02-26 锐捷网络股份有限公司 一种报文采样方法、装置、设备及介质

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US4887296A (en) * 1984-10-26 1989-12-12 Ricoh Co., Ltd. Cryptographic system for direct broadcast satellite system
JPS6331323A (ja) * 1986-07-25 1988-02-10 Nec Corp デジタル化音声装置のスクランブル方式
JPS6387037A (ja) * 1986-09-30 1988-04-18 Toshiba Corp スクランブル音声伝送装置
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
JP2871690B2 (ja) * 1988-04-28 1999-03-17 日本電気株式会社 符号化装置及び復号化装置
IL89672A (en) * 1988-04-29 1994-04-12 Motorola Inc Spectral efficient method of transmitting information signal
US4972469A (en) * 1989-05-19 1990-11-20 Syntellect Inc. System and method for communications security protection
EP0400222A1 (de) * 1989-06-02 1990-12-05 ETAT FRANCAIS représenté par le Ministère des Postes, des Télécommunications et de l'Espace Digitales Übertragungssystem unter Verwendung der Teilbandkodierung eines digitalen Signals
US5539829A (en) * 1989-06-02 1996-07-23 U.S. Philips Corporation Subband coded digital transmission system using some composite signals
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
SE464271B (sv) * 1990-03-23 1991-03-25 Televerket Foerfarande och anordning foer kryptering/dekryptering av digitalt flerljud i teve
JP3169373B2 (ja) * 1990-07-10 2001-05-21 沖電気工業株式会社 データ暗号化処理方法
GB9015799D0 (en) * 1990-07-18 1991-06-12 Plessey Telecomm A data communication system
US5091941A (en) * 1990-10-31 1992-02-25 Rose Communications, Inc. Secure voice data transmission system
US5091936A (en) * 1991-01-30 1992-02-25 General Instrument Corporation System for communicating television signals or a plurality of digital audio signals in a standard television line allocation
US5200823A (en) * 1991-03-29 1993-04-06 Scientific-Atlanta, Inc. Virtual channels for a multiplexed analog component (mac) television system
ATE209406T1 (de) * 1992-02-03 2001-12-15 Koninkl Philips Electronics Nv Übertragung von digitalen breitbandsignalen
KR950008637B1 (ko) * 1993-04-08 1995-08-03 삼성전자주식회사 부밴드 코딩시스템의 신호처리장치
US5504934A (en) * 1993-06-29 1996-04-02 Nec Corporation Satellite communication receiving device capable of automatically dealing with frequent change of an assigned channel
US5426699A (en) * 1993-10-25 1995-06-20 Antec Corporation Method and apparatus for digitizing a scrambled analog video signal

Also Published As

Publication number Publication date
EP0648031A2 (de) 1995-04-12
EP0648031B1 (de) 2007-08-01
EP0648031A3 (de) 1999-04-28
US5668879A (en) 1997-09-16
US5617476A (en) 1997-04-01
DE69435009T2 (de) 2008-04-17

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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: PANASONIC CORP., KADOMA, OSAKA, JP

8339 Ceased/non-payment of the annual fee