Patent US4743745A successfully refreshed from Google Patents.
US4743745A
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Optical memory card reader
Assignee: Nippon Conlux Co Ltd
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Filing: 1986-12-02
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Granted: 1988-05-10
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Expires: 2006-12-02
Abstract
Abstract In an optical memory card reading device of the type comprising a card feeding means for feeding a card inserted into an insertion inlet into the device, an optical reader means for illuminating the memory surface of the optical memory card thus fed in and receiving the reflected light rays from the memory surface and a circuit for converting the information read out by the optical reader means into an electric signal which in turn is analyzed to detect the contents in the memory, an optical memory card reading device characterized by the provision of a card cleaning means which is disposed adjacent to the card insertion inlet for cleaning the memory of the inserted card.
Inventors
- 👤 Kenjiro Kachi
- 👤 Tetsuya Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:14
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K13/00; G06K13/02; G06K13/08; G06K13/0868; G06K13/0893; B; B08; B08B; B08B1/00; B08B1/30; B08B1/32; B08B3/00; B08B3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
An optical memory card reading device comprising: card feed means for feeding a card inserted into a card insertion inlet of said device into said device; an optical reader for illuminating the memory surface of the optical memory card thus fed with light rays and receiving the reflected light rays from the memory surface by a light receiving element; a circuit for converting the information read out from said optical reader into an electrical signal which in turn is analyzed to detect the contents in the memory of said card; and a card cleaning means disposed adjacent to said card insertion inlet for cleaning the memory surface of said card.
Claim 2
Dependent Claim
110 words
An optical memory card reading device comprising: card feed means for feeding a card inserted into a card insertion inlet of said device into said device; an optical reader for illuminating the memory surface of the optical memory card thus fed with light rays and receiving the reflected light rays from the memory surface by a light receiving element; a circuit for converting the information read out from said optical reader into an electrical signal which in turn is analyzed to detect the contents in the memory of said card; and a card cleaning means disposed adjacent to said card insertion inlet for cleaning the memory surface of said card.
Claim 3
Dependent Claim
28 words
An optical memory card reading device as set forth in claim 1 wherein said card cleaning means comprises a combination of a rotary brush and a pinch roller.
Claim 4
Dependent Claim
46 words
An optical memory card receiving device as set forth in claim 1 wherein said card cleaning means comprising a cleaning liquid container and a liquid transport belt for receiving a cleaning liquid from said cleaning liquid container and transporting it to the surface of said card.
Claim 5
Dependent Claim
35 words
An optical memory card reading device as set forth in claim 3 wherein said card cleaning means further comprises a pinch roller and a buffing wheel which are so disposed as to clamp said card.
Claim 6
Dependent Claim
41 words
An optical memory card reading device as set forth in claim 3 wherein said card cleaning means further comprises a pinch roller and a roller wrapped with a dry wiping belt which are so disposed as to clamp said card therebetween.
References Cited (Backward Citations)
US4441018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |