DE3483711D1 - Signaluebertragungsverfahren mit gewaehlter signaluebertragungsgeschwindigkeit. - Google Patents

Signaluebertragungsverfahren mit gewaehlter signaluebertragungsgeschwindigkeit.

Info

Publication number
DE3483711D1
DE3483711D1 DE8484305875T DE3483711T DE3483711D1 DE 3483711 D1 DE3483711 D1 DE 3483711D1 DE 8484305875 T DE8484305875 T DE 8484305875T DE 3483711 T DE3483711 T DE 3483711T DE 3483711 D1 DE3483711 D1 DE 3483711D1
Authority
DE
Germany
Prior art keywords
signal transfer
speed
transfer method
transfer speed
selected signal
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
DE8484305875T
Other languages
English (en)
Inventor
Takashi Kaku
Ryoji Okita
Masayoshi Inoue
Shozo Kudo
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.)
Fujitsu Ltd
Ricoh Co Ltd
Original Assignee
Fujitsu Ltd
Ricoh 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15666926&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3483711(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd, Ricoh Co Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3483711D1 publication Critical patent/DE3483711D1/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
    • H04N1/32—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • H04L5/1446—Negotiation of transmission parameters prior to communication of transmission 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
    • H04N1/33392—Details of handshaking
    • 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
    • H04N2201/3335—Speed or rate
    • 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
    • H04N2201/33371—Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode using test signals, e.g. checking error occurrences
DE8484305875T 1983-08-30 1984-08-29 Signaluebertragungsverfahren mit gewaehlter signaluebertragungsgeschwindigkeit. Expired - Lifetime DE3483711D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58158221A JPH0722324B2 (ja) 1983-08-30 1983-08-30 データ伝送方式

Publications (1)

Publication Number Publication Date
DE3483711D1 true DE3483711D1 (de) 1991-01-17

Family

ID=15666926

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484305875T Expired - Lifetime DE3483711D1 (de) 1983-08-30 1984-08-29 Signaluebertragungsverfahren mit gewaehlter signaluebertragungsgeschwindigkeit.

Country Status (5)

Country Link
US (1) US4630126A (de)
EP (1) EP0137695B1 (de)
JP (1) JPH0722324B2 (de)
CA (1) CA1225712A (de)
DE (1) DE3483711D1 (de)

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* Cited by examiner, † Cited by third party
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JPS6265554A (ja) * 1985-09-17 1987-03-24 Toshiba Corp フアクシミリの通信方法
US4780883A (en) * 1986-06-26 1988-10-25 Racal Data Communications Inc. Data modem with adaptive synchronized speed change
US4748625A (en) * 1986-07-28 1988-05-31 Motorola, Inc. Optimum baud rate transmission system
AU599613B2 (en) * 1986-10-21 1990-07-26 Motorola, Inc. Radio communication receiver with apparatus for altering bit rate of the receiver
JPH0831935B2 (ja) * 1987-09-21 1996-03-27 国際電信電話株式会社 ファクシミリ通信方法
US5159465A (en) * 1987-10-09 1992-10-27 Ricoh Company, Ltd. Facsimile machine having a transmission speed selective shiftdown function
JPH01243748A (ja) * 1988-03-25 1989-09-28 Oki Electric Ind Co Ltd ファクシミリ通信方式並びにファクシミリ装置
US5351134A (en) * 1988-04-07 1994-09-27 Canon Kabushiki Kaisha Image communication system, and image communication apparatus and modem used in the system
JP2810064B2 (ja) * 1988-09-29 1998-10-15 キヤノン株式会社 画像通信装置
US4910794A (en) * 1988-08-04 1990-03-20 Norand Corporation Mobile radio data communication system and method
JP2788258B2 (ja) * 1988-09-06 1998-08-20 株式会社リコー ファクシミリ通信方式
US5007047A (en) * 1988-12-02 1991-04-09 Codex Corporation Adaptive rate control for echo cancelling modem
US5048054A (en) * 1989-05-12 1991-09-10 Codex Corporation Line probing modem
JPH0822012B2 (ja) * 1989-08-05 1996-03-04 松下電送株式会社 ファクシミリ通信方式
US5199061A (en) * 1989-09-06 1993-03-30 Electronics And Telecommunications Research Institute Communication method and equipment for freeze-frame video phone
FR2652966B1 (fr) * 1989-10-10 1994-06-10 Sagem Procede de transmission de telecopies, avec essai de la voie de transmission, appareil d'emission et appareil de reception pour la mise en óoeuvre de ce procede.
JPH04117067A (ja) * 1990-06-11 1992-04-17 Fujitsu Ltd ファクシミリ装置
US5274474A (en) * 1991-01-23 1993-12-28 Randolph-Rand Corporation Integrated telefacsimile and character communication system with standard and high speed modes
US5509050A (en) * 1991-04-16 1996-04-16 Quadphase Corporation Facsimile radio communication system having multiple data speeds
JPH0573208A (ja) * 1991-09-13 1993-03-26 Wacom Co Ltd 制御装置分離型の表示装置付座標検出装置
US5299257A (en) * 1992-02-21 1994-03-29 At&T Bell Laboratories Subscriber initiated non-intrusive network-based analysis of facsimile transmissions
JP2871349B2 (ja) * 1992-09-14 1999-03-17 ブラザー工業株式会社 通信装置
US5548412A (en) * 1992-09-14 1996-08-20 Brother Kogyo Kabushiki Kaisha Data communication device with transmitting condition set in accordance with noise level of activating means
FR2697122B1 (fr) * 1992-10-19 1995-01-06 Sacci Eg Dispositif de traitement vidéo et procédé de transmission d'informations entre deux unités de traitement.
JP3290231B2 (ja) * 1993-03-02 2002-06-10 株式会社日立製作所 音声画像通信装置
US5684602A (en) * 1993-06-30 1997-11-04 Matsushita Graphic Communication Systems, Inc. Facsimile apparatus with coding/decoding interrupt
US5490209A (en) * 1994-02-09 1996-02-06 Harris Corporation Autobaud rate detection mechanism
US5799069A (en) * 1994-09-29 1998-08-25 Intel Corporation Method and apparatus for dynamically adapting the clock rate and data transfer rate of phone-line powered modems.
US5801842A (en) * 1994-12-27 1998-09-01 International Patent Holdings Ltd. Telefacsimile module connectable to telefacsimile machines for transmitting data in standard or high speed modes
US5526410A (en) * 1995-01-12 1996-06-11 Texas Instruments Incorporated Method and system for determination of signal/noise ratio of telephone transmission line used for facsimile transmission
US7072380B2 (en) 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US5953346A (en) * 1996-06-27 1999-09-14 Interdigital Technology Corporation CDMA communication system which selectively suppresses data transmissions during establishment of a communication channel
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
US7123600B2 (en) 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US6940840B2 (en) 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6111870A (en) 1996-11-07 2000-08-29 Interdigital Technology Corporation Method and apparatus for compressing and transmitting high speed data
GB2325381A (en) * 1997-05-17 1998-11-18 Motorola Ltd Dual Speed Communications Apparatus
US6167031A (en) * 1997-08-29 2000-12-26 Telefonaktiebolaget Lm Ericsson (Publ) Method for selecting a combination of modulation and channel coding schemes in a digital communication system
US6144464A (en) * 1997-09-11 2000-11-07 3Com Corporation Method and system for modification of fax data rate over wireless channels
US5991269A (en) * 1998-09-15 1999-11-23 Northern Telecom Limited Wireline modem, communication system and method of setting-up such
US7133441B1 (en) 1999-02-23 2006-11-07 Actelis Networks Inc. High speed access system over copper cable plant
CN1479979A (zh) * 2000-11-01 2004-03-03 阿克泰利斯网络有限公司 铜缆设备上的高速接入系统
US8234399B2 (en) * 2003-05-29 2012-07-31 Seagate Technology Llc Method and apparatus for automatic phy calibration based on negotiated link speed
US7373112B2 (en) * 2003-08-08 2008-05-13 Intel Corporation Trained data transmission for communication systems
US7826798B2 (en) 2003-11-20 2010-11-02 Intel Corporation Trained data transmission for communication systems
US7447232B2 (en) * 2003-09-30 2008-11-04 Intel Corporation Data burst transmission methods in WLAN devices and systems
KR100677147B1 (ko) * 2004-11-02 2007-02-02 삼성전자주식회사 팩시밀리 전송속도 설정방법 및 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538010A (en) * 1976-07-12 1978-01-25 Hitachi Denshi Ltd Transmission control unit
JPS5816668B2 (ja) * 1976-11-12 1983-04-01 富士通株式会社 フアクシミリ電送方式
JPS6028424B2 (ja) * 1977-04-25 1985-07-04 ケイディディ株式会社 伝送速度切替方式
JPS575465A (en) * 1980-06-13 1982-01-12 Mitsubishi Electric Corp Facsimile signal transmission system
JPS5726961A (en) * 1980-07-24 1982-02-13 Ricoh Co Ltd Facsimile transmission system
JPS58139563A (ja) * 1982-02-13 1983-08-18 Canon Inc フアクシミリ装置

Also Published As

Publication number Publication date
EP0137695A3 (en) 1987-09-09
EP0137695A2 (de) 1985-04-17
JPH0722324B2 (ja) 1995-03-08
JPS6051071A (ja) 1985-03-22
EP0137695B1 (de) 1990-12-05
CA1225712A (en) 1987-08-18
US4630126A (en) 1986-12-16

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Legal Events

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