Douglas C. Stevens

Person

Portland, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Video abnormality detection
- Patent number 7,876,355
- Issue date Jan 25, 2011
- Harmonic Inc.
- Douglas C. Stevens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital disk recorder using a port clock having parallel tracks alo...
- Patent number 5,642,497
- Issue date Jun 24, 1997
- Tektronix, Inc.
- Errol C. Crary
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Automatic generation of vector reference graticules
- Patent number 5,455,620
- Issue date Oct 3, 1995
- Tektronix, Inc.
- Douglas C. Stevens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Test signal generator position cursors
- Patent number 5,387,925
- Issue date Feb 7, 1995
- Tektronix, Inc.
- Laurent A. Melling
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Three-dimensional testing of video codes
- Patent number 5,274,445
- Issue date Dec 28, 1993
- Tektronix, Inc.
- Michael S. Overton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Spatial bandwidth testing for digital data-compressed video systems
- Patent number 5,214,508
- Issue date May 25, 1993
- Tektronix, Inc.
- Douglas C. Stevens
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Bit-wise run-length encoding for data compression
- Patent number 5,049,880
- Issue date Sep 17, 1991
- Tektronix, Inc.
- Douglas C. Stevens
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Sweep generator error characterization
- Patent number 4,868,465
- Issue date Sep 19, 1989
- Tektronix, Inc.
- Douglas C. Stevens
- G01 - MEASURING TESTING
Information Patent Grant
Oscilloscope having auxiliary display of a labelled cursor
- Patent number 4,754,205
- Issue date Jun 28, 1988
- Tektronix, Inc.
- Calvin D. Diller
- G01 - MEASURING TESTING
Information Patent Grant
Oscilloscope-based signal level measurement system
- Patent number 4,743,845
- Issue date May 10, 1988
- Tektronix, Inc.
- Calvin D. Diller
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Video abnormality detection
- Publication number 20070242163
- Publication date Oct 18, 2007
- Omneon Video Networks
- Douglas C. Stevens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Douglas C. Stevens

Person

Patents Grantslast 30 patents

Video abnormality detection

Digital disk recorder using a port clock having parallel tracks alo...

Automatic generation of vector reference graticules

Test signal generator position cursors

Three-dimensional testing of video codes

Spatial bandwidth testing for digital data-compressed video systems

Bit-wise run-length encoding for data compression

Sweep generator error characterization

Oscilloscope having auxiliary display of a labelled cursor

Oscilloscope-based signal level measurement system

Patents Applicationslast 30 patents

Video abnormality detection