05339361 is referenced by 78 patents and cites 4 patents.

A communication system (10 and 100) is provided with a verification mechanism (16) to identify both the sender and recipient of electronic information (20). Input devices (12) in cooperation with verification mechanism (16) may be used to confirm the identity and authority of a sender to place electronic information (20) on communications network (14). Output devices (18) in cooperation with verification mechanism (16) may be used to confirm the identity and authority of a recipient of electronic information (20). Verification mechanism (16) and communication network (14) may also provide the sender and the recipient with an automatic date time stamp for delivery of electronic information (20).

Title
System and method for authenticating transmission and receipt of electronic information
Application Number
7/985999
Publication Number
5339361
Application Date
December 4, 1992
Publication Date
August 16, 1994
Inventor
Gerhard P H Deffner
Dallas
TX, US
Robert C Schwalm
Plano
TX, US
Agent
Richard L Donaldson
James C Kesterson
Robby T Holland
Assignee
Texas Instruments Incorporated
TX, US
IPC
G06K 9/62
G10L 5/06
H04L 1/44
H04L 9/32
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