US Patent No: 4,800,439

Number of patents in Portfolio can not be more than 2000

Data communication apparatus adapted to perform data communication and speech communication

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A data communication apparatus includes a device for performing data communication in a data communication mode, a device for performing speech communication in a speech communication mode, a detector for detecting a signal from a calling station indicating that the calling station is in a data communication mode, and a controller for switching, during speech communication in the speech communication mode, the data communication apparatus from the speech communication mode to the data communication mode in response to the detecting of the signal by the detector.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CANON KABUSHIKI KAISHATOKYO49710

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yoshino, Motoaki Kanagawa-ken, JP 37 410

Cited Art

Patent Info (Count) # Cites Year
 
CANON KABUSHIKI KAISHA (1)
4,567,322 Facsimile apparatus 15 1984
 
FUJI PHOTO FILM CO., LTD. (1)
4,654,718 Equipment for notifying the arrival of a correspondence at a facsimile receiver, to the ultimate addressee thereof 81 1983
 
LEMELSON, JEROME H. (1)
4,485,400 Video telephone 134 1982

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CANON KABUSHIKI KAISHA (41)
4,916,607 Computer for executing a process control program and a communication control program in parallel 49 1987
5,222,126 Communication apparatus connected to other communication terminals 6 1988
5,001,744 Communication system having a first and second communication procedures 14 1988
5,050,005 Facsimile apparatus 41 1989
4,932,048 Data communication apparatus with voice communication control 78 1989
5,093,857 Communication apparatus for selected data and speech communication 19 1989
5,020,096 Image communication system having improved line control 16 1990
5,144,650 Communication apparatus having improved switching line connection between different signal paths 3 1990
5,165,096 Image communication apparatus having communication with another communication apparatus and a shared communication line 8 1990
5,142,567 Communication apparatus having alternate message communication 6 1991
5,153,912 Data communication apparatus 11 1991
5,255,311 Data communication apparatus 18 1991
5,317,629 Data communication apparatus connectable with a plurality of telephone sets and a telephone line 18 1991
5,287,402 Data communication apparatus 10 1991
5,194,968 Communication apparatus 12 1991
5,200,992 Communication apparatus having changeable communication procedure signals 16 1992
5,185,783 Communication apparatus for detecting a calling signal from a line, for detecting a data communication signal from a calling station, and for generating a quasi-calling tone 23 1992
5,155,601 Data communication apparatus 32 1992
5,202,915 Single line communication apparatus for speech and data and method therefor 16 1992
5,267,301 Data communication apparatus and method capable of discriminating calling stations 22 1992
5,535,266 Data communication apparatus having an auto-calling function 5 1993
5,315,643 Communication system and data communication method 3 1993
5,428,672 Communication apparatus 1 1993
5,428,673 Data communication apparatus having the function of automatically switching data communication and telephone communication 12 1993
5,596,629 Data transmission over a communication line 2 1994
5,610,975 Visual telephone apparatus 7 1994
5,426,518 Image communication method and apparatus for recording and printing voice message history information 7 1994
5,526,420 Communication apparatus 5 1994
5,442,686 Image communication apparatus 13 1994
5,465,162 Image receiving apparatus 10 1994
5,459,581 Image communication method and apparatus for recording and displaying voice message history information 7 1995
5,909,288 Image communication apparatus having controlled start 1 1995
5,544,234 Facsimile apparatus with automatic answering telephone function, and communication method in said apparatus 12 1995
5,563,932 Communication apparatus connectable to switching network providing distinctive ringing pattern service 15 1995
5,594,783 Telephone apparatus for recording a predetermined message in place of a CNG tone 2 1996
5,974,123 Facsimile apparatus with automatic answering telephone function, and communication method in said apparatus 11 1996
5,850,251 Visual telephone apparatus 1 1996
5,960,068 Communication apparatus for receiving identification information of partner station, and executing communication operation in accordance with received identification information 4 1996
RE36783 Communication apparatus for detecting a calling signal from a line, for detecting a data communication signal from a calling station, and for generating a quasi-calling tone 0 1997
5,966,430 Communication apparatus capable of communicating data and speech selectively through single communication line 7 1997
6,473,493 Communication apparatus for receiving identification information of partner station, and executing communication operation in accordance with received identification information 1 1998
 
MURATA KIKAI KABUSHIKI KAISHA (5)
5,086,455 Facsimile arrangement having automatic answering telephone set and facsimile set and switching process therefor 27 1990
5,287,201 Call receiving method and apparatus 4 1991
5,337,350 Facsimile apparatus with telephone system 10 1991
5,333,179 Facsimile apparatus with automatic answering telephone function 27 1993
5,442,463 Facsimile machine having telephone answering function 9 1993
 
INTEL CORPORATION (3)
5,533,105 Method and apparatus for emulating a telephone with a modem and headset 20 1993
5,524,047 Method and apparatus for emulating telephonic communications with a modem and headset 37 1993
6,487,281 Method of processing a fax/voice call 2 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (3)
5,224,158 Terminal apparatus 1 1991
5,293,575 Facsimile apparatus with audio response function 4 1991
5,487,105 Facsimile apparatus operable in facsimile or telephone mode 16 1993
 
SAMSUNG ELECTRONICS CO., LTD. (3)
5,131,026 Facsimile system having auto-answering function 21 1989
5,761,283 Message processing method of facsimile systems 7 1996
5,703,699 Method for automatically receiving image data in facsimile system regardless of whether such facsimile system is operating in private line mode or public line mode 1 1996
 
DAVAL TECHNOLOGIES, INC. (2)
5,666,403 Method and apparatus for sharing a single telephone line between a facsimile machine, data modem, telephone answering device, and a person 7 1994
5,699,414 Method and apparatus for sharing a single telephone line between a facsimile machine, data modem, telephone answering device, and a person 8 1996
 
PARADYNE CORPORATION (2)
6,546,090 Apparatus and method for communicating voice and data between a customer premises and a central office 17 1999
7,352,803 Apparatus and method for communicating voice and data between a customer premises and a central office 3 2006
 
COMSAT CORPORATION (1)
5,963,621 Secure communication system 16 1996
 
ELECTRONIC SPEECH SYSTEMS, 1900 POWELL, SUITE 205, EMERYVILLE, CA 94608 (1)
5,022,071 Two-way voice & digital data analyzer for telephones 35 1988
 
FUJITSU LIMITED (1)
5,208,850 Multi-media information service center and multi-media communication system 55 1991
 
GRAHAM, JESSE E. JR., AS TRUSTEE OF THAT CERTAIN LAI TRUST DATED THE 21ST DAY OF JUNE,1966 (1)
5,151,972 Apparatus for automatically connecting terminal device to telephone lines 47 1991
 
HASHIMOTO CORPORATION (1)
5,452,342 Telephone terminal device with function for preventing unnecessary utilization of telephone line by unsolicited facsimile signal 3 1994
 
HECON CORPORATION (1)
5,065,426 Facsimile/telephone controller 12 1989
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5,499,287 FAX-telephone interface circuit 47 1994
 
HITACHI, LTD. (1)
5,377,257 Facsimile receiving method and facsimile apparatus carrying out the method 6 1992
 
INTELLECTUAL VENTURES I LLC (1)
5,521,967 Method for monitoring telephone call progress 60 1994
 
INTERSTRUCTURE B.V. (1)
5,113,432 Arrangement for connecting a telefax device or a telephone set to a telecommunication line 10 1990
 
KABUSHIKI KAISHA TOSHIBA (1)
5,285,264 Image reproduction apparatus with plural program processing 4 1992
 
RICOH COMPANY, LTD. (1)
5,280,519 Communication apparatus capable of data communication and speech communication 15 1992
 
TELETRON LTD. (1)
5,553,116 Telephone line monitoring apparatus and method 5 1994
 
TT SYSTEMS LLC (1)
5,146,489 Dedicated line eliminator for facsimile/telephone systems 27 1991
 
VARIAN ASSOCIATES, INC. (1)
5,349,634 Facsimile apparatus 5 1991
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
5,036,534 Intelligent telephone interface for automatic answering systems, and method of using 17 1989
5,297,135 Method and apparatus for determining directionality of communication signals on a communication channel 0 1991