pulses produced by electronic circuits

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H04M1/312

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HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

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H04M1/312pulses produced by electronic circuits

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Patents Grantslast 30 patents

Information Patent Grant
Electric circuit arrangement and a method for generating electric c...
- Patent number 10,594,318
- Issue date Mar 17, 2020
- City University of Hong Kong
- Shu Hung Henry Chung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Plus code dialing in a mobile device
- Patent number 8,170,551
- Issue date May 1, 2012
- Verizon Patent and Licensing Inc.
- Iftekhar Rahman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Off-hook signal and dial pulse generating circuit and a method for...
- Patent number 5,937,030
- Issue date Aug 10, 1999
- Oki Electric Industry Co., Ltd.
- Tokio Miyashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for limiting the working voltage for mechanical switches in...
- Patent number 5,602,914
- Issue date Feb 11, 1997
- SGS Thomson Microelectronics S.r.l.
- Antonio Andreini
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for limiting the working voltage mechanical switches in tele...
- Patent number 5,448,636
- Issue date Sep 5, 1995
- SGS Thomson Microelectronics S.r.l.
- Antonio Andreini
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication device
- Patent number 5,425,096
- Issue date Jun 13, 1995
- Canon Kabushiki Kaisha
- Masaaki Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic telephone set with low power hook switch
- Patent number 5,400,398
- Issue date Mar 21, 1995
- U.S. Philips Corporation
- Peter Sattler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line switch control circuit arrangement for telephone subset
- Patent number 5,384,837
- Issue date Jan 24, 1995
- Alcatel Australia Limited
- Ronald C. S. Fox
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone subset arrangement
- Patent number 5,317,634
- Issue date May 31, 1994
- Alcatel N.V.
- Ronald C. S. Fox
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone branch line transmission circuit with blocking capacitor
- Patent number 5,307,403
- Issue date Apr 26, 1994
- U.S. Philips Corporation
- Ingo Reichelt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit for transmitting voice signals and dial pulses
- Patent number 5,280,522
- Issue date Jan 18, 1994
- Nitsuko Corporation
- Tooru Shimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone transmission circuit with improved switching device
- Patent number 5,121,425
- Issue date Jun 9, 1992
- U.S. Philips Corporation
- Ingo Reichelt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone line interface circuit
- Patent number 5,105,461
- Issue date Apr 14, 1992
- Kabushiki Kaisha Toshiba
- Masayuki Tsurusaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic headset telephone
- Patent number 4,975,949
- Issue date Dec 4, 1990
- Plantronics, Inc.
- Jeff M. Wimsatt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone instrument
- Patent number 4,887,295
- Issue date Dec 12, 1989
- Siliconix Limited
- James O. M. Jenkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone line switch
- Patent number 4,815,126
- Issue date Mar 21, 1989
- Alcatel N.V.
- Peter A. Goode
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Saturating bipolar switch circuit for telephone dial pulsing
- Patent number 4,800,585
- Issue date Jan 24, 1989
- U.S. Philips Corp.
- Hendricus A. H. Dorland
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pulse receiver circuit providing longitudinal balance
- Patent number 4,782,520
- Issue date Nov 1, 1988
- Telco Systems, Inc.
- William T. Mostyn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone set
- Patent number 4,756,021
- Issue date Jul 5, 1988
- Kabushiki Kaisha Toshiba
- Yasunobu Nakayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intrinsically safe telephone
- Patent number 4,741,031
- Issue date Apr 26, 1988
- Gai-Tronics
- Larry P. Grandstaff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Nonsaturating interface supply
- Patent number 4,731,830
- Issue date Mar 15, 1988
- GTE Communication Systems Corporation
- Robert G. Thomson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit for surge voltage protection in electronic telephone stations
- Patent number 4,727,571
- Issue date Feb 23, 1988
- Siemens Aktiengesellschaft
- Alfred Brandstetter
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone line interface and dialer circuitry for telecommunication...
- Patent number 4,723,267
- Issue date Feb 2, 1988
- Octocom Systems, Inc.
- Kenneth D. Jones
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor integrated circuit having a test circuit for testing...
- Patent number 4,697,140
- Issue date Sep 29, 1987
- Fujitsu Limited
- Tadahiro Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Surge protected electronic switch for telephone voiceband circuits
- Patent number 4,634,814
- Issue date Jan 6, 1987
- GTE Communication Systems Corp.
- Karl E. Pommer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line circuit for network junctor
- Patent number 4,567,329
- Issue date Jan 28, 1986
- Societe Anonyme de Telecommunications
- Francois P. Bailly
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Opto-coupler interfacing circuit
- Patent number 4,558,183
- Issue date Dec 10, 1985
- Cellutron Corporation
- C. James Corris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transient resistant key operated pulse generating calling device ci...
- Patent number 4,555,597
- Issue date Nov 26, 1985
- GTE Business Communication Systems Inc.
- Eduard F. B. Boeckmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber's telephone circuit arranged to present constant impedan...
- Patent number 4,550,226
- Issue date Oct 29, 1985
- GTE Communication Systems Corporation
- Albert G. Teater
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Current regulated pulse dialer with memory retention circuit
- Patent number 4,527,016
- Issue date Jul 2, 1985
- GTE Business Communication Systems Inc.
- John D. Sublette
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC CIRCUIT ARRANGEMENT AND A METHOD FOR GENERATING ELECTRIC C...
- Publication number 20190068187
- Publication date Feb 28, 2019
- City University of Hong Kong
- Shu Hung Henry Chung
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PLUS CODE DIALING IN A MOBILE DEVICE
- Publication number 20100248711
- Publication date Sep 30, 2010
- VERIZON PATENT AND LICENSING INC.
- Iftekhar RAHMAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

pulses produced by electronic circuits

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Electric circuit arrangement and a method for generating electric c...

Plus code dialing in a mobile device

Off-hook signal and dial pulse generating circuit and a method for...

Device for limiting the working voltage for mechanical switches in...

Device for limiting the working voltage mechanical switches in tele...

Communication device

Electronic telephone set with low power hook switch

Line switch control circuit arrangement for telephone subset

Telephone subset arrangement

Telephone branch line transmission circuit with blocking capacitor

Circuit for transmitting voice signals and dial pulses

Telephone transmission circuit with improved switching device

Telephone line interface circuit

Electronic headset telephone

Telephone instrument

Telephone line switch

Saturating bipolar switch circuit for telephone dial pulsing

Pulse receiver circuit providing longitudinal balance

Telephone set

Intrinsically safe telephone

Nonsaturating interface supply

Circuit for surge voltage protection in electronic telephone stations

Telephone line interface and dialer circuitry for telecommunication...

Semiconductor integrated circuit having a test circuit for testing...

Surge protected electronic switch for telephone voiceband circuits

Line circuit for network junctor

Opto-coupler interfacing circuit

Transient resistant key operated pulse generating calling device ci...

Subscriber's telephone circuit arranged to present constant impedan...

Current regulated pulse dialer with memory retention circuit

Patents Applicationslast 30 patents

ELECTRIC CIRCUIT ARRANGEMENT AND A METHOD FOR GENERATING ELECTRIC C...

PLUS CODE DIALING IN A MOBILE DEVICE