US4791608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory card having shutter protected terminals
Assignee: Canon Inc
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Filing: 1987-07-28
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Granted: 1988-12-13
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Expires: 2007-07-28
Abstract
Abstract A memory card adapted to be removably loaded into electronic equipment comprises a printed circuit board having a memory element mounted thereon and a contact pattern for making an electrical connection with the electronic equipment, a case for accommodating the printed circuit board and having an opening at a position facing the contact pattern of the printed circuit board, and a shutter member for opening and closing the opening.
Inventors
- 👤 Hideo Fushimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:48
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/005; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07743; G11; G11C; G11C5/00; G11C7/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
A memory card adapted to be removably loaded into electronic equipment, comprising: a contact pattern for exchanging information with an external equipment; an electrically conductive card-shaped case having an opening in a surface thereof at a position facing a position where said contact pattern is located; a shutter member for opening and closing said opening a memory element provided in said case and connected to said contact pattern for exchanging information with an external equipment; a printed circuit board provided in said case for making an electrical connection with said contact pattern and said memory element; and means provided in said case for making an electrical connection with said case and said printed circuit board to ground, static electricity being conducted to said printed circuit board through said case and said electrical connection means by closing said shutter member when said case is in a non-operative status unloaded from said external equipment, to prevent damage to said memory element due to said static electricity.
Claim 2
Dependent Claim
164 words
A memory card adapted to be removably loaded into electronic equipment, comprising: a contact pattern for exchanging information with an external equipment; an electrically conductive card-shaped case having an opening in a surface thereof at a position facing a position where said contact pattern is located; a shutter member for opening and closing said opening a memory element provided in said case and connected to said contact pattern for exchanging information with an external equipment; a printed circuit board provided in said case for making an electrical connection with said contact pattern and said memory element; and means provided in said case for making an electrical connection with said case and said printed circuit board to ground, static electricity being conducted to said printed circuit board through said case and said electrical connection means by closing said shutter member when said case is in a non-operative status unloaded from said external equipment, to prevent damage to said memory element due to said static electricity.
Claim 3
Dependent Claim
16 words
A memory card according to claim 1, further comprising a back-up battery for said memory means.
Claim 4
Dependent Claim
27 words
A memory card according to claim 1, wherein said shutter member has an opening of substantially the same shape and size as said opening in said case.
Claim 5
Dependent Claim
187 words
A memory card adapted to be removably loaded into electronic equipment, comprising: an electrically conductive card-shaped case having an opening; a contact member provided in said case at a position facing said opening for exchanging information with an external equipment, said contact member having a contact pattern for making an electrical connection with said electronic equipment and said case having an opening at a position facing said contact pattern; a shutter member for opening and closing said opening; a memory element provided in said case and connected to said contact member for exchanging information with an external equipment; a printed circuit board provived in said case for making an electrical connection with said contact member and said memory element; and means provided in said case for making an electrical connection with said case and said printed circuit board to ground, static electricity being conducted to said printed circuit board through said case and said electrical connection means by closing said shutter member when said case is in a non-operative status unloaded from said external equipment, to prevent damage to said memory element due to said static electricity.
Claim 6
Dependent Claim
187 words
A memory card adapted to be removably loaded into electronic equipment, comprising: an electrically conductive card-shaped case having an opening; a contact member provided in said case at a position facing said opening for exchanging information with an external equipment, said contact member having a contact pattern for making an electrical connection with said electronic equipment and said case having an opening at a position facing said contact pattern; a shutter member for opening and closing said opening; a memory element provided in said case and connected to said contact member for exchanging information with an external equipment; a printed circuit board provived in said case for making an electrical connection with said contact member and said memory element; and means provided in said case for making an electrical connection with said case and said printed circuit board to ground, static electricity being conducted to said printed circuit board through said case and said electrical connection means by closing said shutter member when said case is in a non-operative status unloaded from said external equipment, to prevent damage to said memory element due to said static electricity.
Claim 7
Dependent Claim
26 words
A memory card according claim 4, further comprising shutter means slidably moving between said printed circuit board and said case for opening and closing said opening.
Claim 8
Dependent Claim
29 words
A memory card according to claim 5, further comprising a spacer arranged between said shutter means and said printed circuit board for guiding the movement of said shutter means.
Claim 9
Dependent Claim
27 words
A memory card according to claim 5, wherein said shutter means has an opening of substantially the same shape and size as said opening in said case.
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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) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |