Library check out/check in system
First Claim
1. A self check out/check in system which includes a terminal for independently withdrawing or returning articles having duplicate article identifying indicia on opposing planar surfaces thereof, and alterable security indicia disposed on the article for indicating the circulation status of the article, the system comprising:
- first and second readers disposed at spaced opposed locations on opposite sides of the article, said first and second readers being operative to substantially simultaneously read both article identifying indicia and for generating first and second article identifying signals in response thereto;
processing circuitry in electrical communication with said first and second readers, said processing circuitry including comparator circuitry for receiving said first and second article identifying signals and for generating a third signal when said first and second article identifying signals are substantially identical; and
security indicia control circuitry for altering the security indicia in response to said third signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A self check out/check in terminal is disclosed for facilitating independent withdrawal or return of articles having article identifying indicia on opposing surfaces thereof, and alterable security indicia for indicating the circulation status of the article. The terminal comprises first and second readers disposed at space opposed locations and operative to read the plurality of article identifying indicia and generate first and second article identifying signals in response thereto. Processing circuitry is provided in electrical communication with the readers and includes comparator circuitry for receiving the first and second article identifying signals and for generating a third signal when said first and second article identifying signals are substantially identical. Security indicia control circuitry is provided for altering the security indicia upon the article in response to the generation of the third signal.
253 Citations
17 Claims
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1. A self check out/check in system which includes a terminal for independently withdrawing or returning articles having duplicate article identifying indicia on opposing planar surfaces thereof, and alterable security indicia disposed on the article for indicating the circulation status of the article, the system comprising:
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first and second readers disposed at spaced opposed locations on opposite sides of the article, said first and second readers being operative to substantially simultaneously read both article identifying indicia and for generating first and second article identifying signals in response thereto; processing circuitry in electrical communication with said first and second readers, said processing circuitry including comparator circuitry for receiving said first and second article identifying signals and for generating a third signal when said first and second article identifying signals are substantially identical; and security indicia control circuitry for altering the security indicia in response to said third signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification