Douglas C. Stevens

Spatial bandwidth testing for digital data-compressed video system

Three-dimensional testing of video codes

Bit-wise run-length encoding for data compression

Digital disk recorder using a port clock having parallel tracks along a timeline with each track representing an independently accessible media stream

Test signal generator position cursors

Oscilloscope based signal level measurement system

Readjustment of bit rates when switching between compressed video streams

Sweep generator error characterization

Oscilloscope having auxiliary display of a labelled cursor

Automatic generation of vector reference graticules