Helmut Preisach

Person

Besigheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Optical modulator
- Patent number 11,949,498
- Issue date Apr 2, 2024
- Cisco Technology, Inc.
- Thomas Duthel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrical space switching matrix
- Patent number 8,305,111
- Issue date Nov 6, 2012
- Alcatel Lucent
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signal receiver with Q-monitor
- Patent number 7,835,464
- Issue date Nov 16, 2010
- Alcatel Lucent
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated optical transceiver circuit
- Patent number 7,650,079
- Issue date Jan 19, 2010
- Alcatel
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive circuit and method of operating a semiconductor laser
- Patent number 7,502,400
- Issue date Mar 10, 2009
- Alcatel
- Helmut Preisach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical signal regenerator
- Patent number 7,440,512
- Issue date Oct 21, 2008
- Alcatel
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching circuit for switching constant current source using MOS t...
- Patent number 7,084,694
- Issue date Aug 1, 2006
- Alcatel
- Helmut Preisach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital to analog converter, phase control circuit, transmission un...
- Patent number 7,068,199
- Issue date Jun 27, 2006
- Alcatel
- Helmut Preisach
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MODULATOR
- Publication number 20220158752
- Publication date May 19, 2022
- Cisco Technology, Inc.
- Thomas Duthel
- G02 - OPTICS
Information Patent Application
DIGITAL SIGNAL RECEIVER WITH Q-MONITOR
- Publication number 20080292026
- Publication date Nov 27, 2008
- ALCATEL LUCENT
- Helmut PREISACH
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Drive circuit and method of operating a semiconductor laser
- Publication number 20050276290
- Publication date Dec 15, 2005
- ALCATEL
- Helmut Preisach
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Digital to analog converter, phase control circuit, transmission un...
- Publication number 20040155805
- Publication date Aug 12, 2004
- ALCATEL
- Helmut Preisach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Electrical signal regenerator
- Publication number 20040151173
- Publication date Aug 5, 2004
- ALCATEL
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electrical space switching matrix
- Publication number 20040150008
- Publication date Aug 5, 2004
- ALCATEL
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Integrated optical transceiver circuit
- Publication number 20040151073
- Publication date Aug 5, 2004
- ALCATEL
- Helmut Preisach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Basic switching circuit
- Publication number 20040150460
- Publication date Aug 5, 2004
- ALCATEL
- Helmut Preisach
- H03 - BASIC ELECTRONIC CIRCUITRY

Helmut Preisach

Person

Patents Grantslast 30 patents

Optical modulator

Electrical space switching matrix

Digital signal receiver with Q-monitor

Integrated optical transceiver circuit

Drive circuit and method of operating a semiconductor laser

Electrical signal regenerator

Switching circuit for switching constant current source using MOS t...

Digital to analog converter, phase control circuit, transmission un...

Patents Applicationslast 30 patents

OPTICAL MODULATOR

DIGITAL SIGNAL RECEIVER WITH Q-MONITOR

Drive circuit and method of operating a semiconductor laser

Digital to analog converter, phase control circuit, transmission un...

Electrical signal regenerator

Electrical space switching matrix

Integrated optical transceiver circuit

Basic switching circuit