DE69830470D1 - Einrichtung zum Umschalten der Übertragungsgeschwindigkeit - Google Patents

Einrichtung zum Umschalten der Übertragungsgeschwindigkeit

Info

Publication number
DE69830470D1
DE69830470D1 DE69830470T DE69830470T DE69830470D1 DE 69830470 D1 DE69830470 D1 DE 69830470D1 DE 69830470 T DE69830470 T DE 69830470T DE 69830470 T DE69830470 T DE 69830470T DE 69830470 D1 DE69830470 D1 DE 69830470D1
Authority
DE
Germany
Prior art keywords
switching
transmission speed
transmission
speed
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
DE69830470T
Other languages
English (en)
Other versions
DE69830470T2 (de
Inventor
Nobuhiko Noma
Keiji Egashira
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.)
Panasonic System Solutions Japan Co Ltd
Original Assignee
Panasonic Communications 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
Application filed by Panasonic Communications Co Ltd filed Critical Panasonic Communications Co Ltd
Publication of DE69830470D1 publication Critical patent/DE69830470D1/de
Application granted granted Critical
Publication of DE69830470T2 publication Critical patent/DE69830470T2/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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Facsimile Transmission Control (AREA)
  • Communication Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
DE69830470T 1998-03-13 1998-11-04 Einrichtung zum Umschalten der Übertragungsgeschwindigkeit Expired - Lifetime DE69830470T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8253298 1998-03-13
JP08253298A JP3253916B2 (ja) 1998-03-13 1998-03-13 通信速度切換装置

Publications (2)

Publication Number Publication Date
DE69830470D1 true DE69830470D1 (de) 2005-07-14
DE69830470T2 DE69830470T2 (de) 2005-10-20

Family

ID=13777127

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69830470T Expired - Lifetime DE69830470T2 (de) 1998-03-13 1998-11-04 Einrichtung zum Umschalten der Übertragungsgeschwindigkeit

Country Status (5)

Country Link
US (1) US6490056B1 (de)
EP (1) EP0944212B1 (de)
JP (1) JP3253916B2 (de)
CA (1) CA2256866C (de)
DE (1) DE69830470T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5976699A (en) * 1999-09-09 2001-04-10 Nokia Corporation Determination of data rate, based on power spectral density estimates
US7050402B2 (en) * 2000-06-09 2006-05-23 Texas Instruments Incorporated Wireless communications with frequency band selection
JP2003008812A (ja) * 2001-06-22 2003-01-10 Ricoh Co Ltd 電子装置
KR100464366B1 (ko) * 2002-02-16 2005-01-03 삼성전자주식회사 순방향 오류 정정 장치 및 방법
JP3689685B2 (ja) 2002-06-21 2005-08-31 キヤノン株式会社 通信装置およびプログラム

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724142A (en) 1980-07-21 1982-02-08 Mitsubishi Electric Corp Communication speed changeover method in facsimile communication
JPS5735450A (en) 1980-08-11 1982-02-26 Nec Corp Communication speed switching system for modulation and demodulation device
JPS5839167A (ja) 1981-09-01 1983-03-07 Nec Corp フアクシミリ装置の伝送速度変換方式
JPS58117770A (ja) 1981-12-30 1983-07-13 Fujitsu Ltd 高速・低速モデム切替制御方式
JPS5940769A (ja) 1982-08-30 1984-03-06 Fujitsu Ltd フアクシミリ伝送制御方式
GB2169174B (en) * 1984-11-28 1989-06-01 Canon Kk Data communication apparatus
US4680781A (en) 1985-10-30 1987-07-14 Microcom, Inc. Data telecommunications system and method with universal link establishment
US4868864A (en) * 1986-07-15 1989-09-19 Hayes Microcomputer Products, Inc. Autocorrelating 2400 bps handshake sequence detector
JPS6464442A (en) 1987-09-04 1989-03-10 Nec Corp Personal computer communication adapter
US5146472A (en) 1990-03-28 1992-09-08 General Datacomm, Inc. Method for imbedding information in modem handshake procedure and modems incorporating the same
JPH04117067A (ja) * 1990-06-11 1992-04-17 Fujitsu Ltd ファクシミリ装置
JPH0537674A (ja) 1991-07-29 1993-02-12 Fujitsu Ltd 電話音声・低速モデム・フアクシミリ信号用符号・復号器
JP3288455B2 (ja) * 1993-01-11 2002-06-04 株式会社リコー ファクシミリ装置
JPH06225101A (ja) 1993-01-28 1994-08-12 Ricoh Co Ltd ファクシミリ装置の画像送信方法
JPH08293992A (ja) 1995-04-21 1996-11-05 Mitsubishi Electric Corp ファクシミリ装置
US5995239A (en) * 1996-04-05 1999-11-30 Ricoh Company, Ltd. Facsimile apparatus, facsimile method, and facsimile system including a modem for determining a data rate
JPH1032704A (ja) 1996-07-17 1998-02-03 Ricoh Co Ltd ファクシミリ装置
JPH10290351A (ja) 1997-04-14 1998-10-27 Fuji Xerox Co Ltd 通信端末装置

Also Published As

Publication number Publication date
JP3253916B2 (ja) 2002-02-04
US6490056B1 (en) 2002-12-03
EP0944212A3 (de) 2001-01-24
EP0944212B1 (de) 2005-06-08
EP0944212A2 (de) 1999-09-22
CA2256866A1 (en) 1999-09-13
CA2256866C (en) 2004-07-06
DE69830470T2 (de) 2005-10-20
JPH11261785A (ja) 1999-09-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition