US3852572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identity card reader
Assignee: Societe des Compteurs de Geneve SODECO
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Filing: 1973-01-03
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Granted: 1974-12-03
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Expires: 1993-01-03
Abstract
Abstract The present invention refers to a card reader for identification cards which bear data arranged in a plurality of coded information tracks, comprising a parity check track, a clock track, and identity tracks. The coded elements of these tracks are arranged in columns having related information contained therein. A number of reading heads corresponding to the number of tracks are arranged in a column in the reader apparatus at the interior wall of a slot constructed in the apparatus which is intended to receive the cards. These reading heads are connected to evaluation circuits.
Inventors
- 👤 J Nicoud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:25
CPC Classifications
G; G06; G06K; G06K5/00; G06K7/00; G06K7/01; G06K7/016; G06K7/0163
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
Card reading apparatus for reading cards having a plurality of information bearing tracks, with indicia arranged in a predetermined pattern, including a direction synchronization track and a plurality of data, tracks, the indicia being arranged in columns transverse to the information bearing tracks, comprising: a housing having a slot arranged therein for accommodating a card, said slot having a closed end and an open end for receiving the card; detection means for each track to detect the indicia present in each track, said detection means for the direction synchronization track being offset relative to said detection means for said data tracks; direction indicating means including bistable means electrically coupled to said synchronization track detection means and said data detection means for producing an error signal corresponding to a particular state of said bistable means to indicate that the card is being moved in the wrong direction relative to said detection means; end of reading indicating means coupled to data detection means for producing a signal in response to removal of the end of the card from the slot; and data reading means coupled to data detection means for reading the information in the data tracks.
Claim 2
Dependent Claim
195 words
Card reading apparatus for reading cards having a plurality of information bearing tracks, with indicia arranged in a predetermined pattern, including a direction synchronization track and a plurality of data, tracks, the indicia being arranged in columns transverse to the information bearing tracks, comprising: a housing having a slot arranged therein for accommodating a card, said slot having a closed end and an open end for receiving the card; detection means for each track to detect the indicia present in each track, said detection means for the direction synchronization track being offset relative to said detection means for said data tracks; direction indicating means including bistable means electrically coupled to said synchronization track detection means and said data detection means for producing an error signal corresponding to a particular state of said bistable means to indicate that the card is being moved in the wrong direction relative to said detection means; end of reading indicating means coupled to data detection means for producing a signal in response to removal of the end of the card from the slot; and data reading means coupled to data detection means for reading the information in the data tracks.
Claim 3
Dependent Claim
41 words
The card reading apparatus claimed in claim 1, including: means positioned at said closed end of said slot for detecting the presence of a card; delay means coupled to said detection means for generating an error signal after a predetermined time.
Claim 4
Dependent Claim
30 words
The card reading apparatus claimed in claim 1, wherein: the length of said slot is greater than the length of the tracks and less than the length of the card.
Claim 5
Dependent Claim
53 words
The card reading apparatus claimed in claim 1 in which the card has a parity check track, including: parity control means for monitoring the total number of indicia found in each column of the card and producing an error signal if the number of indicia in any column deviates from a predetermined standard.
References Cited (Backward Citations)
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |