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

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