DE69230907D1 - Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen - Google Patents

Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen

Info

Publication number
DE69230907D1
DE69230907D1 DE69230907T DE69230907T DE69230907D1 DE 69230907 D1 DE69230907 D1 DE 69230907D1 DE 69230907 T DE69230907 T DE 69230907T DE 69230907 T DE69230907 T DE 69230907T DE 69230907 D1 DE69230907 D1 DE 69230907D1
Authority
DE
Germany
Prior art keywords
decrypting
encrypting
color image
image signals
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 - Lifetime
Application number
DE69230907T
Other languages
English (en)
Other versions
DE69230907T2 (de
Inventor
Nao Nagashima
Yasumichi Suzuki
Mitsuru Kurita
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP4000829A external-priority patent/JPH07177361A/ja
Priority claimed from JP25820192A external-priority patent/JP3287612B2/ja
Priority claimed from JP25820492A external-priority patent/JP3501474B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE69230907D1 publication Critical patent/DE69230907D1/de
Application granted granted Critical
Publication of DE69230907T2 publication Critical patent/DE69230907T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/4406—Restricting access, e.g. according to user identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/0084—Determining the necessity for prevention
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/4406—Restricting access, e.g. according to user identity
    • H04N1/4426—Restricting access, e.g. according to user identity involving separate means, e.g. a server, a magnetic card
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Facsimile Transmission Control (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Editing Of Facsimile Originals (AREA)
DE69230907T 1992-01-07 1992-12-31 Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen Expired - Lifetime DE69230907T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4000829A JPH07177361A (ja) 1992-01-07 1992-01-07 画像処理システム
JP25820192A JP3287612B2 (ja) 1992-09-28 1992-09-28 カラー画像形成装置
JP25820492A JP3501474B2 (ja) 1992-09-28 1992-09-28 カラー画像処理装置、カラー画像読み取り装置、及びカラー画像形成装置

Publications (2)

Publication Number Publication Date
DE69230907D1 true DE69230907D1 (de) 2000-05-18
DE69230907T2 DE69230907T2 (de) 2000-08-17

Family

ID=27274626

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69230907T Expired - Lifetime DE69230907T2 (de) 1992-01-07 1992-12-31 Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen

Country Status (3)

Country Link
US (3) US5581613A (de)
EP (1) EP0564745B1 (de)
DE (1) DE69230907T2 (de)

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US6750902B1 (en) 1996-02-13 2004-06-15 Fotonation Holdings Llc Camera network communication device
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US7257158B1 (en) 1998-05-18 2007-08-14 Kendyl A. Román System for transmitting video images over a computer network to a remote receiver
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US20080250458A1 (en) * 1998-12-21 2008-10-09 Roman Kendyl A Media exchange for handheld wireless receivers and other media user devices
US8290034B2 (en) * 1998-12-21 2012-10-16 Zin Stai Pte. In, Llc Video transmission and display including bit-wise sub-sampling video compression
US8170095B2 (en) * 1998-12-21 2012-05-01 Zin Stai Pte. In, Llc Faster image processing
US7233619B1 (en) * 1998-12-21 2007-06-19 Roman Kendyl A Variable general purpose compression for video images (ZLN)
US7671864B2 (en) * 2000-01-14 2010-03-02 Roman Kendyl A Faster image processing
US20030005428A1 (en) * 2001-05-26 2003-01-02 Roman Kendyl A. Global media exchange
US8068544B2 (en) * 1998-12-21 2011-11-29 Zin Stai Pte. In, Llc Compression with doppler enhancement
US8416847B2 (en) * 1998-12-21 2013-04-09 Zin Stai Pte. In, Llc Separate plane compression using plurality of compression methods including ZLN and ZLD methods
US7016417B1 (en) * 1998-12-23 2006-03-21 Kendyl A. Roman General purpose compression for video images (RHN)
US8004572B2 (en) * 1999-05-17 2011-08-23 Zin Stai Pte. In, Llc System for transmitting a video stream over a computer network to a remote receiver
US7231045B1 (en) 1999-08-30 2007-06-12 Intel Corporation Secure transaction modem storing unique indicia
US6803931B1 (en) 1999-11-04 2004-10-12 Kendyl A. Roman Graphical user interface including zoom control box representing image and magnification of displayed image
US7191462B1 (en) * 1999-11-08 2007-03-13 Kendyl A. Román System for transmitting video images over a computer network to a remote receiver
JP4479054B2 (ja) * 1999-12-14 2010-06-09 コニカミノルタビジネステクノロジーズ株式会社 デジタル複写機およびデジタル複写機における画像データの転送方法
JP4254052B2 (ja) * 2000-01-04 2009-04-15 コニカミノルタビジネステクノロジーズ株式会社 出力システム及びそれに用いる出力方法並びに出力システムにおいて実行されるプログラムを記録した記録媒体
US20010037462A1 (en) * 2000-05-01 2001-11-01 Bengtson Michael B. Method and apparatus for obtaining a printed copy of a document via the internet
US6535706B1 (en) * 2000-10-23 2003-03-18 Toshiba Tec Kabushiki Kaisha Image editing system and image forming system
US6963973B2 (en) 2001-10-17 2005-11-08 Hewlett-Packard Development Company, L.P. Chain of custody system and method
JP3879552B2 (ja) * 2002-03-20 2007-02-14 富士ゼロックス株式会社 画像生成装置、画像読取装置、不正複製防止システム、プログラム、および出力媒体の製造方法
CN100338627C (zh) * 2002-06-04 2007-09-19 佳能株式会社 图像处理装置及其控制方法、以及图像处理系统
JP2004015547A (ja) * 2002-06-07 2004-01-15 Canon Inc 画像暗号化装置、画像暗号化方法、復号装置、復号方法、プログラム、記憶媒体
ITBO20020530A1 (it) * 2002-08-08 2004-02-09 Gd Spa Apparecchiatura e metodo di alimentazione di pacchetti.
JP3894883B2 (ja) * 2002-12-13 2007-03-22 シャープ株式会社 画像形成装置
JP2006005421A (ja) * 2004-06-15 2006-01-05 Olympus Corp 画像処理方法、及びコンピュータプログラムを格納したコンピュータで読み取り可能な記憶媒体
JP2006287868A (ja) * 2005-04-05 2006-10-19 Sharp Corp 画像形成装置
JP4093262B2 (ja) * 2005-10-06 2008-06-04 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置
JP4572805B2 (ja) * 2005-10-27 2010-11-04 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置、画像処理装置の管理装置、画像処理装置の管理方法、プログラム及び記録媒体
US20070237176A1 (en) * 2006-03-30 2007-10-11 Sbc Knowledge Ventures L.P. System and method for enhancing data speed over communication lines
DE112007001015T5 (de) * 2006-05-22 2009-04-16 Continental Automotive Systems US, Inc., Auburn Hills Verfahren zum Bedienen einer Mehrzahl von Fahrzeugen mittels eines beliebigen Senders aus einer programmierten Gruppe
JP5026148B2 (ja) * 2006-09-19 2012-09-12 株式会社リコー 画像処理装置、方法、及びプログラム
CN101627620B (zh) * 2007-05-31 2011-10-19 株式会社Pfu 电子文件加密系统、解密系统以及方法
JP2009290709A (ja) * 2008-05-30 2009-12-10 Canon Inc 印刷システム、印刷装置、画像処理装置及び印刷システムの制御方法
CN101600029B (zh) * 2008-06-06 2013-05-08 博通集成电路（上海）有限公司 背景噪声降低系统及方法
KR20150036973A (ko) * 2013-09-30 2015-04-08 삼성전자주식회사 화상 형성 장치 및 그 제어 방법

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JP2510497B2 (ja) * 1985-10-07 1996-06-26 キヤノン株式会社 デ―タ通信システム
US4864613A (en) * 1986-11-10 1989-09-05 General Instrument Corporation Broadband converter/descrambler interface for cable TV
US4817144A (en) * 1987-03-12 1989-03-28 Zenith Electronics Corporation Secure TV scrambling system using framing code switching
US4916737A (en) * 1988-11-14 1990-04-10 Teleglobe Pay-Tv System, Inc. Secure anti-piracy encoded television system and method
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DE4021783A1 (de) * 1990-07-11 1992-01-16 Holzer Walter Kopier- und chiffriergeraet
DE4021061C2 (de) * 1990-07-04 1998-11-05 Holzer Walter Prof Dr H C Ing Verfahren zur Codierung von faksimilen Fernkopien
US5091938B1 (en) * 1990-08-06 1997-02-04 Nippon Denki Home Electronics Digital data cryptographic system
US5062136A (en) * 1990-09-12 1991-10-29 The United States Of America As Represented By The Secretary Of The Navy Telecommunications system and method
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Also Published As

Publication number Publication date
US5757926A (en) 1998-05-26
EP0564745B1 (de) 2000-04-12
EP0564745A3 (de) 1993-10-20
EP0564745A2 (de) 1993-10-13
US5581613A (en) 1996-12-03
US6192127B1 (en) 2001-02-20
DE69230907T2 (de) 2000-08-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition