Patent BE494986A successfully refreshed from Google Patents.
Patent US5092799A successfully refreshed from Google Patents.
US5092799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting mechanism for memory card
Assignee: Mitsubishi Electric Corp
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Filing: 1989-12-22
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Granted: 1992-03-03
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Expires: 2009-12-22
Abstract
Abstract Disclosed is a connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment. The connecting mechanism comprises: a pair of connectors respectively provided on the card side and the terminal equipment side, in which a difference in the length of terminals is provided between both grounding and power input terminals and terminals other than the grounding and power input terminals in such a manner as to establish an electrical sequence in which, during insertion of the memory card, the grounding and power input terminals make electrical contact in advance of the other terminals and when separated lag electrically behind the other terminals; a card guide provided on the terminal equipment side and having predetermined dimensions for restricting angle of inclination of the memory card during insertion or withdrawal thereof so as to obtain the electrical sequence; and a unilateral or bilateral terminal equipment-side buffer circuit provided for all input/output lines excluding a power input line and a grounding line in the terminal equipment, whereby the insertion or withdrawal of activated lines is made possible with respect to the input/output lines excluding a card enable signal line.
Inventors
- 👤 Masatoshi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:06
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/70; H01R12/7076; H02; H02H; H02H9/00; H02H9/001; H02H9/004
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
171 words
A connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment, comprising: connector means including a card-side connector and a terminal equipment-side connector, each of said card side connector and said terminal equipment-side connector having terminals, said connector means having a grounding terminal and a power input terminal which are different in length than other terminals; card guide means provided on said terminal equipment-side connector, having predetermined dimensions for restricting angle of inclination of said memory card during insertion or withdrawal thereof, so that said grounding terminal and said power input terminal both make electrical contact before said other terminals during insertion of said memory card, and, said grounding terminal and said power input terminal both make electrical contact after said other terminals during withdrawal of said memory card thereby reducing the possibility of abnormal currents and connections upon insertion or withdrawal; and a terminal equipment-side buffer circuit connected to all input/output lines excluding a power input line and a grounding line in said terminal equipment.
Claim 2
Dependent Claim
171 words
A connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment, comprising: connector means including a card-side connector and a terminal equipment-side connector, each of said card side connector and said terminal equipment-side connector having terminals, said connector means having a grounding terminal and a power input terminal which are different in length than other terminals; card guide means provided on said terminal equipment-side connector, having predetermined dimensions for restricting angle of inclination of said memory card during insertion or withdrawal thereof, so that said grounding terminal and said power input terminal both make electrical contact before said other terminals during insertion of said memory card, and, said grounding terminal and said power input terminal both make electrical contact after said other terminals during withdrawal of said memory card thereby reducing the possibility of abnormal currents and connections upon insertion or withdrawal; and a terminal equipment-side buffer circuit connected to all input/output lines excluding a power input line and a grounding line in said terminal equipment.
Claim 3
Dependent Claim
70 words
A connecting mechanism for a memory card according to claim 1, wherein the external dimensions of said memory card are approximately 54×86×2-4 mm in terms of the width x length x thickness, the length of said card guide means is 16.72 or more, the guide width thereof is approximately 54.0-54.3 mm, and a difference in the length of said connector terminals in said connector means is 1.0 mm or more.
Claim 4
Dependent Claim
61 words
A connecting mechanism for a memory card according to claim 1, wherein said terminals of said terminal equipment-side connector of said connector means are male terminals and said terminals of said card-side connector are female terminals, said male terminals of said terminal equipment-side connector having said grounding terminal and power input terminal which are different in length than said other terminals.
Claim 5
Dependent Claim
58 words
A connecting mechanism for a memory card according to claim 1, wherein said terminals of said terminal equipment-side connector of said connector means are male terminals and said terminals of said card-side connector are female terminals, said female terminals of said card-side connector having said grounding terminal and power input terminal which are different than said other terminals.
Claim 6
Dependent Claim
60 words
A connecting mechanism for a memory card according to claim 1, wherein said terminals of said terminal equipment-side connector of said connector means are female terminals and said terminals of said card-side connector are male terminals, said male terminals of said card-side connector having said grounding terminal and power input terminal which are different in length than said other terminals.
Claim 7
Dependent Claim
61 words
A connecting mechanism for a memory card according to claim 1, wherein said terminals of said terminal equipment-side connector of said connector means are female terminals and said terminals of said card-side connector are male terminals, said female terminals of said terminal equipment-side connector having said grounding terminal and power input terminal which are different in length than said other terminals.
Claim 8
Dependent Claim
174 words
A connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment, comprising: connector means including a card-side connector and a terminal equipment-side connector, each of said card side connector and said terminal equipment-side connector having terminals, said connector means having a grounding terminal and a power input terminal which are different in length from other terminals; card guide means provided on said terminal equipment-side connector, having predetermined dimensions for restricting angle of inclination of said memory card during insertion or withdrawal thereof so that said grounding terminal and said power input terminal both make electrical contact before said other terminals during insertion of said memory card, and said grounding terminal and said power input terminal both make electrical contact after said other terminals during withdrawal of said memory card; a terminal equipment-side buffer circuit connected to all input/output lines excluding a power input line and a grounding line in said terminal equipment; and a power input control circuit connected to a power input line of the terminal equipment-side connector.
Claim 9
Dependent Claim
174 words
A connecting mechanism for a memory card for connecting a detachable memory card and terminal equipment, comprising: connector means including a card-side connector and a terminal equipment-side connector, each of said card side connector and said terminal equipment-side connector having terminals, said connector means having a grounding terminal and a power input terminal which are different in length from other terminals; card guide means provided on said terminal equipment-side connector, having predetermined dimensions for restricting angle of inclination of said memory card during insertion or withdrawal thereof so that said grounding terminal and said power input terminal both make electrical contact before said other terminals during insertion of said memory card, and said grounding terminal and said power input terminal both make electrical contact after said other terminals during withdrawal of said memory card; a terminal equipment-side buffer circuit connected to all input/output lines excluding a power input line and a grounding line in said terminal equipment; and a power input control circuit connected to a power input line of the terminal equipment-side connector.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |