07821400 is referenced by 28 patents and cites 88 patents.

A system and method for reading multiple items bearing electronic tags, such as radio frequency identification (RFID) tags, disposed in a read zone wherein a correlation scheme/system, separate (e.g. non-RF) from the electronic reader, is provided for verifying that all the items in the read zone have been successfully read. Typically, the user/operator is then notified whether or not all the items detected by the verification system have been successfully read by the electronic reader.

Title
System and method for verifying number of wireless tagged items in a transaction
Application Number
11/861276
Publication Number
7821400 (B2)
Application Date
September 25, 2007
Publication Date
October 26, 2010
Inventor
Charles F Atwater
Eugene
OR, US
Craig D Cherry
Eugene
OR, US
Nicolas N Tabet
Eugene
OR, US
Agent
Stoel Rives
Assignee
Datalogic Scanning
OR, US
IPC
G08B 13/14
View Original Source