Gilbert M. M. Ferrieu

Person

Bievres, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Echo canceller using delta modulation
- Patent number 4,827,472
- Issue date May 2, 1989
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Anti-larsen-effect arrangement in a telephone station equipped with...
- Patent number 4,484,034
- Issue date Nov 20, 1984
- Telecommunications Radioelectrique et Telephoniques
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Current mirror circuit
- Patent number 4,481,463
- Issue date Nov 6, 1984
- U.S. Philips Corporation
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hands free telephone with switchable gain in the two speech signal...
- Patent number 4,454,384
- Issue date Jun 12, 1984
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for avoiding annoying sustained oscillations in a close...
- Patent number 4,453,039
- Issue date Jun 5, 1984
- Telecommunications Radioelectriques et Telephoniques
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic subscriber line interface circuit having means to equali...
- Patent number 4,414,434
- Issue date Nov 8, 1983
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic sound level control of telephone station
- Patent number 4,386,236
- Issue date May 31, 1983
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic subscriber junctor
- Patent number 4,356,354
- Issue date Oct 26, 1982
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for detecting the closure of a subscriber's line during r...
- Patent number 4,356,355
- Issue date Oct 26, 1982
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber's connecting network comprising a symmetrical power ampl...
- Patent number 4,321,430
- Issue date Mar 23, 1982
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber line interface circuit for a telephone line
- Patent number 4,275,277
- Issue date Jun 23, 1981
- U.S. Philips Corporation
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for processing a delta modulation signal, in particular...
- Patent number 4,225,963
- Issue date Sep 30, 1980
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber's circuit with a symmetrical amplifier
- Patent number 4,211,896
- Issue date Jul 8, 1980
- Telecommunications Radioelectrique et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time-division multiplex communication system for connecting two-wir...
- Patent number 4,187,400
- Issue date Feb 5, 1980
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit arrangement for halving the sampling rate of a delta modula...
- Patent number 4,184,150
- Issue date Jan 15, 1980
- Telecommunications Radioelectriques et Telephoniques T.R.T.
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ringing signal generator for use in a subscriber's line circuit
- Patent number 4,174,467
- Issue date Nov 13, 1979
- U.S. Philips Corporation
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electric network for use in a subscriber's loop
- Patent number 4,135,062
- Issue date Jan 16, 1979
- U.S. Philips Corporation
- Gilbert M. M. Ferrieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transversal digital filter for delta coded signals
- Patent number 3,968,354
- Issue date Jul 6, 1976
- T.R.T. Telecommunications Radioelectriques
- Gilbert Marie Marcel Ferrieu
- H03 - BASIC ELECTRONIC CIRCUITRY

Gilbert M. M. Ferrieu

Person

Patents Grantslast 30 patents

Echo canceller using delta modulation

Anti-larsen-effect arrangement in a telephone station equipped with...

Current mirror circuit

Hands free telephone with switchable gain in the two speech signal...

Arrangement for avoiding annoying sustained oscillations in a close...

Electronic subscriber line interface circuit having means to equali...

Automatic sound level control of telephone station

Electronic subscriber junctor

Apparatus for detecting the closure of a subscriber's line during r...

Subscriber's connecting network comprising a symmetrical power ampl...

Subscriber line interface circuit for a telephone line

Arrangement for processing a delta modulation signal, in particular...

Subscriber's circuit with a symmetrical amplifier

Time-division multiplex communication system for connecting two-wir...

Circuit arrangement for halving the sampling rate of a delta modula...

Ringing signal generator for use in a subscriber's line circuit

Electric network for use in a subscriber's loop

Transversal digital filter for delta coded signals