Devices which can set up and transmit only one digit at a time

Industry

CPC
H04M1/30

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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/30Devices which can set up and transmit only one digit at a time

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Automatic detection of phone system settings for dial-up modem conn...
- Patent number 6,546,091
- Issue date Apr 8, 2003
- Thomson Licensing S.A.
- Keith Reynolds Wehmeyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Externally dialed hand-free operator for cellular phones
- Patent number 6,314,179
- Issue date Nov 6, 2001
- E-Lead Electronic Co., Ltd
- Tonny Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Controlling a communication device with dual-mode telecommunication...
- Patent number 6,259,931
- Issue date Jul 10, 2001
- Ericsson Inc.
- Mona Singh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless telephone dialing method
- Patent number 6,101,401
- Issue date Aug 8, 2000
- DBTEL Incorporated
- Michael Mou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone apparatus including circuit for producing dial data from...
- Patent number 5,706,340
- Issue date Jan 6, 1998
- Rohm Co., Ltd.
- Mitsuro Saji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telecommunication system and method enabling a user to get access t...
- Patent number 5,638,437
- Issue date Jun 10, 1997
- Teleliason Inc.
- Georges Bettan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Programmable telephone
- Patent number 5,384,842
- Issue date Jan 24, 1995
- Chesilvale Electronics Limited
- Ian A. Tapping
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for automatically switching between pulse code...
- Patent number 5,369,697
- Issue date Nov 29, 1994
- Boston Technology, Inc.
- John P. Murray
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication terminal adaptor
- Patent number 5,329,580
- Issue date Jul 12, 1994
- Canon Kabushiki Kaisha
- Kanichi Yoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone system having a dial data changeover switch
- Patent number 5,241,591
- Issue date Aug 31, 1993
- Rohm Co., Ltd.
- Mitsuro Saji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for pulse/tone detection and selection
- Patent number 5,228,079
- Issue date Jul 13, 1993
- Lifeline Systems, Inc.
- Alan D. Brav
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrical telephone speech network
- Patent number 5,191,606
- Issue date Mar 2, 1993
- Industrial Technology Research Institute
- Dar-Chang Juang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dialler chip mode signal
- Patent number 5,157,720
- Issue date Oct 20, 1992
- Alcatel N.V.
- Ronald C. S. Fox
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dial signal generator for generating dial pulse signal and dual ton...
- Patent number 4,998,276
- Issue date Mar 5, 1991
- Fujitsu Limited
- Takashi Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication apparatus with facilities for changing to a pulse or...
- Patent number 4,947,423
- Issue date Aug 7, 1990
- Canon Kabushiki Kaisha
- Tsunehiro Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High performance telephone instrument with combination pulse and to...
- Patent number 4,675,902
- Issue date Jun 23, 1987
- GTE Communication Systems, Inc.
- Eduard F. B. Boeckmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone system with computer generated dial pad and automatic dia...
- Patent number 4,431,870
- Issue date Feb 14, 1984
- George A. May
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone station with automatic switch-over between pulse code dia...
- Patent number 4,233,475
- Issue date Nov 11, 1980
- Bernard G. Roche
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone set with rotary dial
- Patent number 4,167,827
- Issue date Sep 18, 1979
- Northern Telecom Limited
- Raymond C. Hemming
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Keyboard type telephone station adapted to transmit dialling pulses...
- Patent number 3,988,549
- Issue date Oct 26, 1976
- Jean C. Merlin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electric impulse transmitters for telephone instruments
- Patent number 3,932,707
- Issue date Jan 13, 1976
- David Charles Anthony Connolly
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3761640
- Patent number 3,761,640
- Issue date Sep 25, 1973
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
3488449
- Patent number 3,488,449
- Issue date Jan 6, 1970
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3366324
- Patent number 3,366,324
- Issue date Jan 30, 1968
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
1993780
- Patent number 1,993,780
- Issue date Mar 12, 1935
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
691245
- Patent number 691,245
- Issue date Jan 14, 1902
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Devices which can set up and transmit only one digit at a time

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Automatic detection of phone system settings for dial-up modem conn...

Externally dialed hand-free operator for cellular phones

Controlling a communication device with dual-mode telecommunication...

Wireless telephone dialing method

Telephone apparatus including circuit for producing dial data from...

Telecommunication system and method enabling a user to get access t...

Programmable telephone

Method and apparatus for automatically switching between pulse code...

Communication terminal adaptor

Telephone system having a dial data changeover switch

Method and apparatus for pulse/tone detection and selection

Electrical telephone speech network

Dialler chip mode signal

Dial signal generator for generating dial pulse signal and dual ton...

Communication apparatus with facilities for changing to a pulse or...

High performance telephone instrument with combination pulse and to...

Telephone system with computer generated dial pad and automatic dia...

Telephone station with automatic switch-over between pulse code dia...

Telephone set with rotary dial

Keyboard type telephone station adapted to transmit dialling pulses...

Electric impulse transmitters for telephone instruments

3761640

3488449

3366324

1993780

691245

Patents Applicationslast 30 patents