Patent US5288980A successfully refreshed from Google Patents.
US5288980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Library check out/check in system
Assignee: Kingsley Library Equipment Co
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Filing: 1992-06-25
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Granted: 1994-02-22
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Expires: 2012-06-25
Abstract
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.
Inventors
- 👤 Neil Patel
- 👤 Suhas Desai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:50
CPC Classifications
G; G07; G07G; G07G1/00; G07G1/0036; G07G1/0045; G06; G06K; G06K17/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
146 words
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.
Claim 2
Dependent Claim
146 words
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.
Claim 3
Dependent Claim
33 words
The system as recited in claim 1 further comprising user identification circuitry for receiving a user identification card having user identifying indicia disposed thereon, and for generating user identification signal in response thereto.
Claim 4
Dependent Claim
32 words
The system as recited in claim 2 wherein said user identification circuitry includes a third reader operative to read the user identification indicia and to generate a fourth signal in response thereto.
Claim 5
Dependent Claim
24 words
The system as recited in claim 1 wherein the processing circuitry further comprises user verification circuitry for verifying the status of the identified user.
Claim 6
Dependent Claim
31 words
The system as recited in claim 4 wherein said processing circuitry further comprises a first memory circuit for receiving and updating information indicative of the status of a plurality of users.
Claim 7
Dependent Claim
30 words
The system as recited in claim 4 wherein said processing circuitry further comprises a memory circuit for receiving and updating information concerning the circulation status of a plurality of articles.
Claim 8
Dependent Claim
31 words
The system as recited in claim 4 wherein said processing circuitry further includes patron status enable circuitry for selectively enabling said security indicia circuitry in response to said patron status information.
Claim 9
Dependent Claim
47 words
The system as recited in claim 1 further comprising sensor circuitry disposed adjacent said first reader for determining the continued presence of an article intermediate said first and second readers, said sensor circuitry further being operative to disable said security issue device upon removal of the article.
Claim 10
Dependent Claim
21 words
The system as recited in claim 1 wherein said article identification indicia is a label comprised of printed bar code information.
Claim 11
Dependent Claim
24 words
The system as recited in claim 1 wherein said article identification indicia is a label comprised of a bar code recorded on magnetic tape.
Claim 12
Dependent Claim
22 words
The system as recited in claim 1 wherein said article identification indicia is a label comprised of a coded semiconductor chip transmitter.
Claim 13
Dependent Claim
21 words
The system as recited in claim 1 wherein said article identification indicia is a label comprised of a coded ultrasonic transmitter.
Claim 14
Dependent Claim
21 words
The system as recited in claim 1 wherein said user identification indicia is a label comprised of printed bar code information.
Claim 15
Dependent Claim
24 words
The system as recited in claim 1 wherein said user identification indicia is a label comprised of a bar code recorded on magnetic tape.
Claim 16
Dependent Claim
22 words
The system as recited in claim 1 wherein said user identification indicia is a label comprised of a coded semiconductor chip transmitter.
Claim 17
Dependent Claim
21 words
The system as recited in claim 1 wherein said user identification indicia is a label comprised of a coded ultrasonic transmitter.
Claim 18
Dependent Claim
20 words
The system as recited in claim 1 wherein said second reader is vertically translatable with respect to said first reader.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |