05309351 is referenced by 132 patents and cites 12 patents.

A data and communication system including a hand-held unit and an infrared communication satellite is used to provide for the interchange of data between a host computer, individual personal computers, the hand-held computing unit, and factory machinery, including process controllers.

Title
Communications, information, maintenance diagnostic and training system
Application Number
263679
Publication Number
5309351
Application Date
September 2, 1992
Publication Date
May 3, 1994
Inventor
William R Lueders
McKinney
TX, US
E R Webb
Temple
TX, US
Joseph H McCain
Plano
TX, US
Agent
Leo N Heiting
Richard L Donaldson
W Daniel Swayze Jr
Assignee
Texas Instruments Incorporated
TX, US
IPC
G06F 15/46
View Original Source