WO1993004572A3 - Bild-vorlagencodierung beispielsweise für telefax und farbfernsehen - Google Patents

Bild-vorlagencodierung beispielsweise für telefax und farbfernsehen Download PDF

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Publication number
WO1993004572A3
WO1993004572A3 PCT/EP1992/002977 EP9202977W WO9304572A3 WO 1993004572 A3 WO1993004572 A3 WO 1993004572A3 EP 9202977 W EP9202977 W EP 9202977W WO 9304572 A3 WO9304572 A3 WO 9304572A3
Authority
WO
WIPO (PCT)
Prior art keywords
white
coding
transmission time
black
during
Prior art date
Application number
PCT/EP1992/002977
Other languages
English (en)
French (fr)
Other versions
WO1993004572A2 (de
Inventor
Josef Dirr
Original Assignee
Josef Dirr
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 to US08/108,594 priority Critical patent/US5576835A/en
Application filed by Josef Dirr filed Critical Josef Dirr
Priority to DE4292873T priority patent/DE4292873D2/de
Publication of WO1993004572A2 publication Critical patent/WO1993004572A2/de
Publication of WO1993004572A3 publication Critical patent/WO1993004572A3/de
Priority to US08/487,160 priority patent/US5581368A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/24—Half-wave signalling 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
    • H04N1/41—Bandwidth or redundancy reduction
    • 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
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Abstract

Bildvorlagencodierung beispielsweise für Telefax und Farbfernsehen. Bei der vorliegenden Erfindung geht es um eine Verkürzung der Übertragungszeit, insbesonders bei einer zahlen- oder ziffernmässigen Lauflängencodierung für schwarz und weiss. Dies erfolgt in der Weise, indem für weiss und schwarz dieselben Codewörter auch für unterschliedliche Zahlen bzw. Ziffern vorgesehen werden. Als Unterscheidungskriterium wird dabei die Abgriffsfolge von weiss und schwarz verwendet. Eine weitere Zeitverkürzung ist bei der Codierung von mehreren in der Folge vorkommenden weissen Zeilen in der Weise möglich, indem vor- oder nach dem Codewort für die weisse Zeile die codierte Anzahl der weissen Zeilen vorgesehen wird. Bei der Graucodierung wird durch Unterteilung der Stufen bzw. der binären Codewörter, ggf. mit gewollter Redundanz, eine Verkürzung der Übertragungszeit insbesondere dadurch erreicht, weil dadurch sehr viel Zeichen in der Folge vorkommen, die dann wie die weissen Zeilen übertragen werden. Bei der Farbbildübertragung wird zusätzlich durch eine codemultiplexe Codierung und ggf. einer Übertragung auf QAM-Basis, wobei die PAM-codierte Information zusätzlich eine Gleichstromvorspannung erhält, eine Zeitverkürzung für die Übertragung erreicht. Der Summenwechselstrom bewegt sich dadurch nur im Bereich von 90°.
PCT/EP1992/002977 1992-02-24 1992-12-23 Bild-vorlagencodierung beispielsweise für telefax und farbfernsehen WO1993004572A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/108,594 US5576835A (en) 1992-02-24 1992-12-12 Method for run-length coding for shortening transmission time
DE4292873T DE4292873D2 (de) 1992-11-06 1992-12-23 Bild-Vorlagencodierung beispielsweise für Telefax und Farbfernsehen
US08/487,160 US5581368A (en) 1992-02-24 1995-06-07 Data-reducing coding method for transmitting information from a transmitter to a receiver

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4205570 1992-02-24
DEP4205570.9 1992-02-24
DEP4237596.7 1992-11-06
DE4237596 1992-11-06

Publications (2)

Publication Number Publication Date
WO1993004572A2 WO1993004572A2 (de) 1993-03-18
WO1993004572A3 true WO1993004572A3 (de) 1993-06-10

Family

ID=25912127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/002977 WO1993004572A2 (de) 1992-02-24 1992-12-23 Bild-vorlagencodierung beispielsweise für telefax und farbfernsehen

Country Status (3)

Country Link
US (2) US5576835A (de)
AU (1) AU3257693A (de)
WO (1) WO1993004572A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620960B1 (de) * 1992-11-06 1999-03-10 Josef Dirr Verfahren zur codierung und übertragung von information
JP3651941B2 (ja) * 1994-11-28 2005-05-25 キヤノン株式会社 画像再生装置
US6072829A (en) * 1997-02-19 2000-06-06 Dirr; Josef Method of higher value step encoding
CA2335849A1 (en) * 1998-06-26 1999-03-11 Josef Dirr Method for doubling levels of coding
US7027525B2 (en) * 1999-12-07 2006-04-11 Josef Dirr Digital transmission method for bandwidth and bit rate flexibility
US20030212601A1 (en) * 2002-05-09 2003-11-13 Ivan Silva Credit card SMS portal transmission system and process
US7082479B2 (en) 2002-06-19 2006-07-25 Eastman Kodak Company System and method for maintaining synchronized data transfer using a plurality of different control words individually indicative of the same single event
US7532765B2 (en) 2002-12-30 2009-05-12 Intel Corporation Run length encoded digital image
US7340012B2 (en) * 2004-04-16 2008-03-04 Data Flow Technologies, Inc. Single and multiple sinewave modulation and demodulation techniques employing carrier-zero and carrier-peak data-word start and stop
US20080253479A1 (en) * 2004-04-16 2008-10-16 Data Flow Technologies, Inc. Single and multiple sinewave modulation and demodulation techniques, apparatus, and communications systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004895A2 (de) * 1988-10-19 1990-05-03 Josef Dirr Verfahren zur codierung von information
DE4025026A1 (de) * 1989-12-07 1991-06-13 Dirr Josef Verfahren zur codierung von information

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL102056C (de) * 1953-10-19
JPS587109B2 (ja) * 1974-09-09 1983-02-08 ケイディディ株式会社 フアクシミリシンゴウ ノ ジヨウホウヘンカガソアドレスフゴウカホウシキ
AU503988B2 (en) * 1975-11-25 1979-09-27 Rudolf Hell Gmbh Digital programme length coding with redundancy reduction forthe transmission of binary coded image information
JPS54150022A (en) * 1978-05-18 1979-11-24 Ricoh Co Ltd Method and apparatus for picture encoding reproduction
CA1128646A (en) * 1978-11-22 1982-07-27 Yasuhiro Yamazaki Coding method for facsimile signal
JPS5771063A (en) * 1980-10-22 1982-05-01 Toshiba Corp Conversion and storage system for picture information
US4409623A (en) * 1981-01-31 1983-10-11 Nippon Telegraph & Telephone Public Corporation Method and equipment for processing gray scale facsimile signal
US4511213A (en) * 1981-12-24 1985-04-16 Kokusai Denshin Denwa Kabushiki Kaisha Coding method for multilevel-gradated picture signal
DE3223312A1 (de) * 1982-06-22 1983-12-29 Josef Ing.(grad.) 8000 München Dirr Verfahren zur uebertragung von fernsehsignalen
DE3226382A1 (de) * 1982-07-15 1984-02-02 Josef Ing.(grad.) 8000 München Dirr Verfahren fuer die uebertragung von bild- und tonsignalen beim fernsehen
JPH0824380B2 (ja) * 1982-08-04 1996-03-06 ヨ−ゼフ・デイル カラーテレビジョン信号を符号化して伝送する方法
JPS5937773A (ja) * 1982-08-26 1984-03-01 Canon Inc ランレングス符号復号装置
GB2172767B (en) * 1985-01-31 1989-02-08 Canon Kk Image signal processing system
DE3709451A1 (de) * 1987-03-23 1988-10-06 Dirr Josef Verfahren fuer die codierung der fernsehsignale
US4839738A (en) * 1987-04-22 1989-06-13 Advanced Micro Devices, Inc. Apparatus for decoding facsimile coded data to image data with coding and reference line windowing and color change detection
EP0329158B1 (de) * 1988-02-19 1994-06-22 Josef Dirr Verfahren für die digitale und/oder analoge Codierung von Information eines, zweier oder mehrerer Kanäle und/oder Frequenz- oder Bandbreitenreduzierung und/oder Erhöhung der Übertragungssicherheit
DE3909074A1 (de) * 1989-03-20 1990-09-27 Dirr Josef Verfahren zur erzeugung einer frequenz/phasenmodulation
JP2842478B2 (ja) * 1990-04-11 1999-01-06 三菱電機株式会社 符号化方法
AU8309991A (en) * 1990-08-07 1991-12-10 Josef Dirr Picture coding, for example for telefax and colour television
US5305111A (en) * 1990-12-11 1994-04-19 Industrial Technology Research Institute Run length encoding method and system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004895A2 (de) * 1988-10-19 1990-05-03 Josef Dirr Verfahren zur codierung von information
DE4025026A1 (de) * 1989-12-07 1991-06-13 Dirr Josef Verfahren zur codierung von information

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CONFERENCE RECORD OF THE NATIONAL TELESYSTEMS CONFERENCE - GALVESTON, TX, USA - 7-10 NOVEMBER 1982 Seite E1.5.1 UDALOV ET AL. 'Run-Length Encoding of Tri-State Video Delta Modulation' *
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS Bd. 34, Nr. 3, August 1988, NEW YORK US Seiten 759 - 767 SUZUKI ET AL. 'Standard Subscriber Line Compatible Color Videophone' *
JOURNAL OF THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS Bd. 82, Nr. 8, August 1973, Seiten 649 - 654 GOLDBERG 'PCM Encoded NTSC Color Television Subjective Tests' *
SIGNAL PROCESSING. IMAGE COMMUNICATION Bd. 1, Nr. 1, Juni 1989, AMSTERDAM NL Seiten 55 - 73 YAMAZAKI 'Standardization Activities in Image Communication for Telematic Services' *

Also Published As

Publication number Publication date
AU3257693A (en) 1993-04-05
US5576835A (en) 1996-11-19
US5581368A (en) 1996-12-03
WO1993004572A2 (de) 1993-03-18

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