P

Inventor

JOHNSON DAVID RANDAL

US6 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON DAVID RANDAL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JOHNSON DAVID RANDAL

3 patents
US8823548B2Sep 2, 2014

Control of traffic signal phases

JOHNSON DAVID RANDAL22 citations87
US8610596B2Dec 17, 2013

Monitoring and diagnostics of traffic signal preemption controllers

JOHNSON DAVID RANDAL15 citations81
US8325062B2Dec 4, 2012

Centralized management of preemption control of traffic signals

JOHNSON DAVID RANDAL12 citations81

UNISYS CORP

2 patents
US5701316ADec 23, 1997

Method for generating an internet protocol suite checksum in a single macro instruction

UNISYS CORP131 citations94
US5732404AMar 24, 1998

Flexible expansion of virtual memory addressing

UNISYS CORP30 citations88

GLOBAL TRAFFIC TECHNOLOGIES LLC

1 patent
US8344908B2Jan 1, 2013

Monitoring management and presentation of preemption control data of centrally managed traffic signals

GLOBAL TRAFFIC TECHNOLOGIES LLC13 citations81