Inventor

CHU DAVID C

24 patents

⚠️ This page may combine multiple inventors who share the name “CHU DAVID C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHU DAVID C

HEWLETT PACKARD CO

Time interval measuring apparatus and method

Double vernier time interval measurement using triggered phase-locked oscillators

Picosecond event timer

System for highly repeatable clock parameter recovery from data modulated signals

Precision timed delay measurement using phaselocked CW technique

Digital phase detector

Data capture in an uninterrupted counter

Feed forward method and apparatus for generating a clock signal

Frequency measurement using phase continuous frequency switching

Phase-locked digital synthesizers

Measurement averaging counting apparatus employing a randomly phase modulated time base to improve counting resolution

Automatic echo-chamber for measuring single time intervals by replication and averaging

System for characterizing phase-modulated signals using a time interval analyzer

AGILENT TECHNOLOGIES INC

System and method for interferometer non-linearity compensation

Phase digitizer

System and method of using a side-mounted interferometer to acquire position information

System for sensing an absolute position in two dimensions using a target pattern

Phase digitizer for signals in imperfect quadrature

System and method for heterodyne interferometer high velocity type non-linearity compensation

System architecture for sensing an absolute position using a target pattern

System and method for interferometer non-linearity compensation

System for sensing an absolute position in two dimensions using a target pattern

MICROSOFT CORP

Using satellite visibility data for improved location accuracy

CHU DAVID C

Non-fourier spectral analysis for editing and visual display of music