Signalling arrangements Manipulation of signalling currents

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CPC
H04Q1/30

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HELECTRICITY H04Electric communication H04QSELECTING H04Q1/00Details of selecting apparatus or arrangements for establishing connections among stations for the purpose of transferring information via these connections

Current Industry

H04Q1/30Signalling arrangements Manipulation of signalling currents

Industries

Patents Grantslast 30 patents

Information Patent Grant
Building controller and interphone system
- Patent number 10,659,617
- Issue date May 19, 2020
- AIPHONE CO., LTD.
- Kenji Yasukawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Intercom system
- Patent number 10,469,669
- Issue date Nov 5, 2019
- AIPHONE CO., LTD.
- Seiya Yamakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automated emergency notification system
- Patent number 9,553,992
- Issue date Jan 24, 2017
- Al Harnisch
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for de-energizing battery packs
- Patent number 9,209,628
- Issue date Dec 8, 2015
- Johnson Controls Technology LLC
- Bryan L. Thieme
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Non-voice signal repeater for speech coders
- Patent number 6,868,156
- Issue date Mar 15, 2005
- Cisco Technology, Inc.
- Shankar S. Narayan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for measuring loads in a common channel signal...
- Patent number 5,615,255
- Issue date Mar 25, 1997
- Telefonaktiebolaget L M Ericsson
- Yves Lemieux
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for measuring analog telephony signals
- Patent number 5,561,700
- Issue date Oct 1, 1996
- Koninklijke PTT Nederland N.V.
- Lodewijk M. Van Breda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call progress decoder for multiple cadenced tones on telephone lines
- Patent number 5,483,593
- Issue date Jan 9, 1996
- Motorola, Inc.
- Sanjay Gupta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit for detecting object signal from input signal
- Patent number 5,471,507
- Issue date Nov 28, 1995
- Fujitsu Limited
- Yutaka Awata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Telephone cross connect status signal pre-processor
- Patent number 5,465,256
- Issue date Nov 7, 1995
- Krone AG
- Charles J. C. Fowler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Detecting make-break clicks on a telephone line
- Patent number 5,428,662
- Issue date Jun 27, 1995
- Dialogic Corporation
- Chris A. Hamilton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for adaptively tuning to a received periodic signal
- Patent number 5,343,414
- Issue date Aug 30, 1994
- Advanced Micro Devices, Inc.
- Safdar M. Asghar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone signal classification and phone message delivery method a...
- Patent number 5,311,575
- Issue date May 10, 1994
- Texas Instruments Incorporated
- Sang G. Oh
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Adaptive no balance DX signalling circuit
- Patent number 5,247,574
- Issue date Sep 21, 1993
- XEL Communications, Inc.
- Jimmy D. Slife
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dialing pulse signature recognizing method and device
- Patent number 5,177,781
- Issue date Jan 5, 1993
- Teleliaison
- Michel Ponton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Programmable universal signaling circuit for a telephone network
- Patent number 5,151,935
- Issue date Sep 29, 1992
- XEL Communications, Inc.
- Jimmy D. Slife
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method to detect telephony signaling states
- Patent number 5,109,409
- Issue date Apr 28, 1992
- Alcatel NA, Inc.
- Eric D. Bomgardner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Universal channel unit switchable between two wire and four wire co...
- Patent number 5,034,978
- Issue date Jul 23, 1991
- XEL Communications, Inc.
- Ninh T. Nguyen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pulse detector circuit
- Patent number 4,347,406
- Issue date Aug 31, 1982
- GTE Automatic Electric Labs Inc.
- John F. Zurawski
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3878340
- Patent number 3,878,340
- Issue date Apr 15, 1975
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3872436
- Patent number 3,872,436
- Issue date Mar 18, 1975
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3851283
- Patent number 3,851,283
- Issue date Nov 26, 1974
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3839603
- Patent number 3,839,603
- Issue date Oct 1, 1974
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3821484
- Patent number 3,821,484
- Issue date Jun 28, 1974
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3660682
- Patent number 3,660,682
- Issue date May 2, 1972
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3609249
- Patent number 3,609,249
- Issue date Sep 28, 1971
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3290448
- Patent number 3,290,448
- Issue date Dec 6, 1966
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3289050
- Patent number 3,289,050
- Issue date Nov 29, 1966
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3235669
- Patent number 3,235,669
- Issue date Feb 15, 1966
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3164679
- Patent number 3,164,679
- Issue date Jan 5, 1965
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
BUILDING CONTROLLER AND INTERPHONE SYSTEM
- Publication number 20190342455
- Publication date Nov 7, 2019
- AIPHONE CO., LTD.
- Kenji YASUKAWA
- E04 - BUILDING
Information Patent Application
INTERCOM SYSTEM
- Publication number 20190116269
- Publication date Apr 18, 2019
- AIPHONE, LTD.
- Seiya YAMAKAWA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SYSTEMS AND METHODS FOR DE-ENERGIZING BATTERY PACKS
- Publication number 20130175999
- Publication date Jul 11, 2013
- Johnson Controls Technology LLC
- Bryan L. Thieme
- B60 - VEHICLES IN GENERAL

Signalling arrangements Manipulation of signalling currents

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Building controller and interphone system

Intercom system

Automated emergency notification system

Systems and methods for de-energizing battery packs

Non-voice signal repeater for speech coders

Method and apparatus for measuring loads in a common channel signal...

Device for measuring analog telephony signals

Call progress decoder for multiple cadenced tones on telephone lines

Circuit for detecting object signal from input signal

Telephone cross connect status signal pre-processor

Detecting make-break clicks on a telephone line

Apparatus for adaptively tuning to a received periodic signal

Telephone signal classification and phone message delivery method a...

Adaptive no balance DX signalling circuit

Dialing pulse signature recognizing method and device

Programmable universal signaling circuit for a telephone network

Apparatus and method to detect telephony signaling states

Universal channel unit switchable between two wire and four wire co...

Pulse detector circuit

3878340

3872436

3851283

3839603

3821484

3660682

3609249

3290448

3289050

3235669

3164679

Patents Applicationslast 30 patents

BUILDING CONTROLLER AND INTERPHONE SYSTEM

INTERCOM SYSTEM

SYSTEMS AND METHODS FOR DE-ENERGIZING BATTERY PACKS