DE69131087D1 - Digitales Übertragungsgerät - Google Patents

Digitales Übertragungsgerät

Info

Publication number
DE69131087D1
DE69131087D1 DE69131087T DE69131087T DE69131087D1 DE 69131087 D1 DE69131087 D1 DE 69131087D1 DE 69131087 T DE69131087 T DE 69131087T DE 69131087 T DE69131087 T DE 69131087T DE 69131087 D1 DE69131087 D1 DE 69131087D1
Authority
DE
Germany
Prior art keywords
transmission device
digital transmission
digital
transmission
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
DE69131087T
Other languages
English (en)
Other versions
DE69131087T2 (de
Inventor
Tatsuya Yaguchi
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 JP2224342A external-priority patent/JP2972300B2/ja
Priority claimed from JP2226519A external-priority patent/JP2866170B2/ja
Priority claimed from JP2226518A external-priority patent/JP2922606B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE69131087D1 publication Critical patent/DE69131087D1/de
Application granted granted Critical
Publication of DE69131087T2 publication Critical patent/DE69131087T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33338—Mode signalling or mode changing; Handshaking therefor adapting to particular facsimile group, e.g. G3
    • 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
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H04N1/001—Systems or arrangements for the transmission of the picture signal specially adapted for transmission via digital wireline networks
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33307—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only
    • H04N1/33323—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only transmission mode only, e.g. speed
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33346—Mode signalling or mode changing; Handshaking therefor adapting to a particular standardised protocol
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33361—Mode signalling or mode changing; Handshaking therefor according to characteristics or the state of the communication line
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/333—Mode signalling or mode changing; Handshaking therefor
    • H04N1/33369—Storage of mode or retrieval of prestored mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0471—Terminal access circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/333—Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33342—Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
    • H04N2201/33357—Compression mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/333—Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33342—Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
    • H04N2201/33364—Type of modulation; Type of channel, e.g. digital or analog; Type of communication, e.g. half-duplex or full-duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/033—Other modulation methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/034—Codec; PCM compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/16—Service observation; Fault circuit; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/178—Control signals, e.g. also service connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/179—Facsimile; Fax, e.g. still picture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/199—Modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/297—Coupling circuits between different (rate) TDM systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69131087T 1990-08-28 1991-08-27 Digitales Übertragungsgerät Expired - Fee Related DE69131087T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2224342A JP2972300B2 (ja) 1990-08-28 1990-08-28 通信装置
JP2226519A JP2866170B2 (ja) 1990-08-30 1990-08-30 通信装置
JP2226518A JP2922606B2 (ja) 1990-08-30 1990-08-30 通信装置

Publications (2)

Publication Number Publication Date
DE69131087D1 true DE69131087D1 (de) 1999-05-12
DE69131087T2 DE69131087T2 (de) 1999-10-28

Family

ID=27330884

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131087T Expired - Fee Related DE69131087T2 (de) 1990-08-28 1991-08-27 Digitales Übertragungsgerät

Country Status (3)

Country Link
US (1) US5818870A (de)
EP (1) EP0473116B1 (de)
DE (1) DE69131087T2 (de)

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JPH07193619A (ja) * 1993-10-27 1995-07-28 Canon Inc デジタル電話機及びその動作方法
US6111935A (en) * 1993-10-27 2000-08-29 Canon Kabushiki Kaisha Adaptive expansion table in a digital telephone receiver
DE19517391C2 (de) * 1994-06-20 1999-07-22 Siemens Ag Verfahren und Anordnung zum Übertragen von Audiosignalen zwischen Kommunikationsendgeräten
CA2266945C (en) * 1994-12-09 2002-04-02 Brent Townshend High speed encoder and encoding method
US5970103A (en) 1996-09-06 1999-10-19 Townshend; Brent High speed communications system for analog subscriber connections
US6449352B1 (en) * 1995-06-20 2002-09-10 Matsushita Electric Industrial Co., Ltd. Packet generating method, data multiplexing method using the same, and apparatus for coding and decoding of the transmission data
US5991278A (en) * 1996-08-13 1999-11-23 Telogy Networks, Inc. Asymmetric modem communications system and method
US6212228B1 (en) * 1997-09-10 2001-04-03 Nortel Networks Limited Apparatus for modulation and demodulating digital data
TW522354B (en) * 1998-08-31 2003-03-01 Semiconductor Energy Lab Display device and method of driving the same
US6504865B1 (en) * 1999-02-24 2003-01-07 Altocom, Inc. Digital connection detection technique
US6553518B1 (en) 1999-03-08 2003-04-22 International Business Machines Corporation Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations
US6341360B1 (en) 1999-03-08 2002-01-22 International Business Machines Corporation Decision feedback equalizers, methods, and computer program products for detecting severe error events and preserving equalizer filter characteristics in response thereto
US6389064B1 (en) 1999-03-08 2002-05-14 International Business Machines Corporation Modems, methods, and computer program products for identifying a signaling alphabet in variance with an ideal alphabet due to digital impairments
US7003030B2 (en) 1999-03-08 2006-02-21 Lenovo (Singapore) Pte. Ltd. Receivers, methods, and computer program products for an analog modem that receives data signals from a digital modem
US6661837B1 (en) 1999-03-08 2003-12-09 International Business Machines Corporation Modems, methods, and computer program products for selecting an optimum data rate using error signals representing the difference between the output of an equalizer and the output of a slicer or detector
US6381267B1 (en) 1999-03-08 2002-04-30 International Business Machines Corporation Modems, methods, and computer program products for falling back to a lower data rate protocol upon detecting abnormal line conditions during startup
US6397276B1 (en) 1999-03-29 2002-05-28 Eugene Rzyski Data transmission by an alternating-frequency analog signal
US6504866B1 (en) * 1999-05-14 2003-01-07 Siemens Information & Communication Networks, Inc System and method for eliminating companding conversion distortion on international modem calls
US6661847B1 (en) 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations
US6505222B1 (en) 1999-10-29 2003-01-07 International Business Machines Corporation Systems methods and computer program products for controlling undesirable bias in an equalizer
US6650657B1 (en) 1999-10-29 2003-11-18 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modem signals
US6823017B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Systems, methods and computer program products for filtering glitches from measured values in a sequence of code points
US6765955B1 (en) 1999-10-29 2004-07-20 International Business Machines Corporation Methods, systems and computer program products establishing a communication configuration for a modem connection to compensate for echo noise
US6816545B1 (en) 1999-10-29 2004-11-09 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modems based on clusters and/or skips in pulse code modulation signal levels
US6662322B1 (en) 1999-10-29 2003-12-09 International Business Machines Corporation Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points
US6823004B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Methods, systems and computer program products for monitoring performance of a modem during a connection
US6611563B1 (en) 1999-10-29 2003-08-26 International Business Machines Corporation Systems, methods and computer program products for data mode refinement of modem constellation points
US6826157B1 (en) 1999-10-29 2004-11-30 International Business Machines Corporation Systems, methods, and computer program products for controlling data rate reductions in a communication device by using a plurality of filters to detect short-term bursts of errors and long-term sustainable errors
US6754258B1 (en) 1999-10-29 2004-06-22 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of digital impairments based on patterns
US6792040B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Modems having a dual power mode capability and methods of operating same
JP2001186360A (ja) * 1999-12-27 2001-07-06 Canon Inc 画像通信装置およびその方法
US6876339B2 (en) 1999-12-27 2005-04-05 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and driving method thereof
EP1667383B1 (de) * 2000-05-17 2008-07-16 Symstream Technology Holdings No. 2 PTY LTD Verfahren und Vorrichtung zur Übertragung einer Datenkommunikation in Sprachrahmen mittels einer Octave Pulse Data Kodierung/Dekodierung
JP2005079929A (ja) * 2003-09-01 2005-03-24 Canon Inc 通信装置、通信装置の制御方法、および通信装置の制御プログラム
US8135362B2 (en) 2005-03-07 2012-03-13 Symstream Technology Holdings Pty Ltd Symbol stream virtual radio organism method and apparatus
JP4371150B2 (ja) * 2007-05-14 2009-11-25 セイコーエプソン株式会社 ファクシミリ装置、その制御方法及びプログラム

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Also Published As

Publication number Publication date
EP0473116B1 (de) 1999-04-07
EP0473116A2 (de) 1992-03-04
EP0473116A3 (en) 1993-02-24
US5818870A (en) 1998-10-06
DE69131087T2 (de) 1999-10-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee