DE69230907T2 - Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen - Google Patents

Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen

Info

Publication number
DE69230907T2
DE69230907T2 DE69230907T DE69230907T DE69230907T2 DE 69230907 T2 DE69230907 T2 DE 69230907T2 DE 69230907 T DE69230907 T DE 69230907T DE 69230907 T DE69230907 T DE 69230907T DE 69230907 T2 DE69230907 T2 DE 69230907T2
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
DE69230907D1 (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
Application granted granted Critical
Publication of DE69230907D1 publication Critical patent/DE69230907D1/de
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
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 DE69230907D1 (de) 2000-05-18
DE69230907T2 true 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)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3524108B2 (ja) * 1992-09-28 2004-05-10 キヤノン株式会社 画像処理装置
US6421145B1 (en) * 1992-09-28 2002-07-16 Canon Kabushiki Kaisha Image processing apparatus and method using image information and additional information or an additional pattern added thereto or superposed thereon
US7113615B2 (en) * 1993-11-18 2006-09-26 Digimarc Corporation Watermark embedder and reader
EP0940780B1 (de) * 1994-01-20 2001-05-30 Omron Corporation Bildverarbeitungsvorrichtung und Verfahren zur Detektion eines Referenzmusters
DE29501988U1 (de) * 1995-02-08 1995-04-27 Ruland Werner Ortwin Dr Med Pr Sicherheitsanordnung für Telefaxgeräte
US6373581B1 (en) * 1995-02-10 2002-04-16 Canon Kabushiki Kaisha Apparatus to control optional paper conveyance device and image processing apparatus using the same
US6229620B1 (en) * 1995-08-29 2001-05-08 Canon Kabushiki Kaisha Image processing apparatus and method thereof
US6891567B2 (en) * 1998-06-26 2005-05-10 Fotonation Holdings, Llc Camera messaging and advertisement system
US5862218A (en) * 1996-04-04 1999-01-19 Fotonation, Inc. Method and apparatus for in-camera image marking and authentication
US6587949B1 (en) 1998-06-26 2003-07-01 Fotonation Holdings, Llc Secure storage device for transfer of data via removable storage
US6433818B1 (en) 1998-11-06 2002-08-13 Fotonation, Inc. Digital camera with biometric security
US6750902B1 (en) 1996-02-13 2004-06-15 Fotonation Holdings Llc Camera network communication device
US6510520B1 (en) 1998-06-26 2003-01-21 Fotonation, Inc. Secure storage device for transfer of digital camera data
US5862217A (en) * 1996-03-28 1999-01-19 Fotonation, Inc. Method and apparatus for in-camera encryption
US5801856A (en) * 1996-07-24 1998-09-01 Eastman Kodak Company Secure photographic systems
JP3767163B2 (ja) * 1998-03-26 2006-04-19 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置の制御方法及び画像形成装置
US7257158B1 (en) 1998-05-18 2007-08-14 Kendyl A. Román System for transmitting video images over a computer network to a remote receiver
US7324133B2 (en) 1998-11-06 2008-01-29 Fotomedia Technologies, Llc Method and apparatus for controlled camera useability
US8068544B2 (en) * 1998-12-21 2011-11-29 Zin Stai Pte. In, Llc Compression with doppler enhancement
US7671864B2 (en) * 2000-01-14 2010-03-02 Roman Kendyl A Faster image processing
US8170095B2 (en) * 1998-12-21 2012-05-01 Zin Stai Pte. In, Llc Faster image processing
US20030005428A1 (en) * 2001-05-26 2003-01-02 Roman Kendyl A. Global media exchange
US8290034B2 (en) * 1998-12-21 2012-10-16 Zin Stai Pte. In, Llc Video transmission and display including bit-wise sub-sampling video compression
US20080250458A1 (en) * 1998-12-21 2008-10-09 Roman Kendyl A Media exchange for handheld wireless receivers and other media user devices
US7233619B1 (en) 1998-12-21 2007-06-19 Roman Kendyl A Variable general purpose compression for video images (ZLN)
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
US20070279184A1 (en) * 2006-05-22 2007-12-06 Siemens Vdo Automotive Corporation Method Of Operating Multiple Vehicles Using Any Transmitter From A Programmed Group
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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886302A (en) * 1974-01-28 1975-05-27 Hughes Aircraft Co Closed circuit television modem sharing system
US4392021A (en) * 1980-07-28 1983-07-05 Technical Communications Corporation Secure facsimile transmission system using time-delay modulation
CA1153103A (en) * 1981-03-19 1983-08-30 Northern Telecom Limited Scrambling and unscrambling video signals in a pay tv system
US4530008A (en) * 1983-10-03 1985-07-16 Broadband Technologies, Inc. Secured communications system
US4829569A (en) * 1984-09-21 1989-05-09 Scientific-Atlanta, Inc. Communication of individual messages to subscribers in a subscription television system
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
US5029207A (en) * 1990-02-01 1991-07-02 Scientific-Atlanta, Inc. External security module for a television signal decoder
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
US5166977A (en) * 1991-05-31 1992-11-24 Encrypto, Inc. Protocol converter for a secure fax transmission system

Also Published As

Publication number Publication date
US5757926A (en) 1998-05-26
EP0564745A3 (de) 1993-10-20
US6192127B1 (en) 2001-02-20
EP0564745B1 (de) 2000-04-12
US5581613A (en) 1996-12-03
DE69230907D1 (de) 2000-05-18
EP0564745A2 (de) 1993-10-13

Similar Documents

Publication Publication Date Title
DE69230907T2 (de) Verfahren zum Verschluesseln und Entschluesseln von Farbbildsignalen
DE69635347D1 (de) Verfahren und system zum wiedergeben und kombinieren von bildern
DE69427261D1 (de) Vorrichtung und Verfahren zum selektiven Betrachten von Fernsehinformation
DE69418745D1 (de) Verfahren und Gerät zum Drucken von Bildern
DE69230741D1 (de) Verfahren und Anordnung zur Verschlüsselung von Informationssignalen
DE69320516T2 (de) Methode und Gerät zum Editieren von Video
DE69323028T2 (de) Gerät und Verfahren zur farbtreuen Wiedergabe
DE69422199T2 (de) Verfahren und gerät zum übertragen und empfangen von verschlüsselten signalen
DE69319529D1 (de) Verfahren und Vorrichtung zur Reproduktion von Farbbildern
DE69319544D1 (de) Verfahren und Vorrichtung zum stufenweisen Abbau von Videodaten
DE69702800T2 (de) Verfahren zum Erzeugen von Farbprobeabzugsdaten und Farbprobeabzügen
DE69028166D1 (de) Verfahren und Vorrichtung zum Verschlüsseln und Entschlüsseln von Zeitgebietssignalen
DE4492448T1 (de) Verfahren und Einrichtung zum Zusammensetzen von Videobildern
DE69323522D1 (de) Bildabtastvorrichtung und Verfahren zum Diskriminieren von speziellen Originalen
DE69624046D1 (de) Verfahren und Vorrichtung zum Interpolieren von Bildsignalen
DE69716513D1 (de) Verfahren und Apparat zum Editieren von Bildern
DE69633849D1 (de) System und verfahren zum erzeugen von bildern
DE69323526T2 (de) Bildverarbeitungsgerät zum Empfangen von Vielfarbenbilddaten und zum Generieren von Zweifarbenbilddaten
DE69618398D1 (de) Verfahren und Vorrichtung zum Interpolieren von Bildsignalen
DE69818949D1 (de) Verfahren und Vorrichtung zum Interpolieren von Bildsignalen
DE69117681D1 (de) Verfahren und Gerät zum Farbdrucken
DE69318349T2 (de) System und Verfahren zum intensitätsvariablen Drucken
DE69109360D1 (de) Verfahren und Vorrichtung zur Ver- und Entschlüsselung von Videosignalen.
DE69217018D1 (de) Verfahren zum Chiffrieren und Dechiffrieren von Informationen
DE69031091T2 (de) Gerät und Verfahren zum Erzeugen von Farbbildern

Legal Events

Date Code Title Description
8364 No opposition during term of opposition