Inventor

PURI MANOJ

US7 patents

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

OCTEL COMMUNICATIONS CORP

4 patents

US5257309AOct 26, 1993

Dual tone multifrequency signal detection and identification methods and apparatus

OCTEL COMMUNICATIONS CORP32 citations92

US5239574AAug 24, 1993

Methods and apparatus for detecting voice information in telephone-type signals

OCTEL COMMUNICATIONS CORP37 citations92

US5164989ANov 17, 1992

Echo cancellation methods and apparatus for voice processing systems

OCTEL COMMUNICATIONS CORP31 citations92

US5479498ADec 26, 1995

Digital line card having universal port for upgrading electronic messaging system

OCTEL COMMUNICATIONS CORP39 citations90

MICROUNITY SYSTEMS ENG

1 patent

US5541867AJul 30, 1996

Method and apparatus for decorrelation of mutually contaminated digital signals

MICROUNITY SYSTEMS ENG15 citations71

OCTEL COMMUNICATIONS CORPORATI

1 patent

US5155772AOct 13, 1992

Data compression system for voice data

OCTEL COMMUNICATIONS CORPORATI19 citations69

PURI MANOJ

1 patent

US12401999B2Aug 26, 2025

RF aware deep learning authentication solution

PURI MANOJ0 citations44