Inventor

PETR DAVID W

US4 patents

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

BELL TELEPHONE LABOR INC

1 patent

US4437087AMar 13, 1984

Adaptive differential PCM coding

BELL TELEPHONE LABOR INC184 citations95

AT & T BELL LAB

1 patent

US4518950AMay 21, 1985

Digital code converter

AT & T BELL LAB30 citations89

NEUMANN JEFFREY

1 patent

US4607364AAug 19, 1986

Multimode data communication system

NEUMANN JEFFREY34 citations87

PETR DAVID W

1 patent

US8321211B2Nov 27, 2012

System and method for multi-channel pitch detection

PETR DAVID W1 citations42