US4806745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
IC card with fewer input keys
Assignee: Sharp Corp
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Filing: 1987-04-16
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Granted: 1989-02-21
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Expires: 2007-04-16
Abstract
Abstract An IC card has a preregistered password and a display section which displays numerals and a cursor. An operator enters a password by moving the cursor to the desired numeral and presses a key. Fewer keys are thus required to enter passwords and the surface area of the card can be utilized more efficiently than if use is made of the usual set of ten number keys.
Inventors
- 👤 Yoshinori Oogita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:11
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0701; G06K19/0702; G06K19/0704; G06K19/077; G06K19/07701; G06K19/07703; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/3415
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
An IC card comprising a display means, a display control means for causing symbols and a cursor to be displayed in said display means, a cursor motion input means for specifying motion of said cursor displayed in said display means, a cursor moving means for causing said cursor to move to a position corresponding to a specified symbol in response to an input through said cursor motion input means, a lock input means for specifying one of said symbols displayed in said display means, and a locking means for keeping said cursor at a position corresponding to said one of said symbols specified by said lock input means in response to an input through said lock input means.
Claim 2
Dependent Claim
118 words
An IC card comprising a display means, a display control means for causing symbols and a cursor to be displayed in said display means, a cursor motion input means for specifying motion of said cursor displayed in said display means, a cursor moving means for causing said cursor to move to a position corresponding to a specified symbol in response to an input through said cursor motion input means, a lock input means for specifying one of said symbols displayed in said display means, and a locking means for keeping said cursor at a position corresponding to said one of said symbols specified by said lock input means in response to an input through said lock input means.
Claim 3
Dependent Claim
11 words
The IC card of claim 1 wherein said symbols are numerals.
Claim 4
Dependent Claim
38 words
The IC card of claim 1 further comprising memory means storing a password, and comparing means for comparing an entered symbol array with said password, said locking means serving to transmit said specified symbol to said comparing means.
Claim 5
Dependent Claim
144 words
In an IC card having a display means, a memory means and a preregistered password such that the content of said memory means can be displayed in said display means if a received password coincides with said preregistered password, the improvement wherein said IC card further comprises key input means for entering binary number data including binary numbers "0" and "1", conversion input means, conversion means for converting binary data entered by said key input means into decimal data in response to an input from said conversion input means, storing means for storing decimal data obtained through conversion of binary data through said conversion means, comparison means for making a comparison between the content of said storing means and said preregistered password, and display control means for displaying the content of said storing means in said display means if said comparison results in agreement.
Claim 6
Dependent Claim
144 words
In an IC card having a display means, a memory means and a preregistered password such that the content of said memory means can be displayed in said display means if a received password coincides with said preregistered password, the improvement wherein said IC card further comprises key input means for entering binary number data including binary numbers "0" and "1", conversion input means, conversion means for converting binary data entered by said key input means into decimal data in response to an input from said conversion input means, storing means for storing decimal data obtained through conversion of binary data through said conversion means, comparison means for making a comparison between the content of said storing means and said preregistered password, and display control means for displaying the content of said storing means in said display means if said comparison results in agreement.
Claim 7
Dependent Claim
14 words
The IC card of claim 4 wherein said storing means comprises a shift register.
Claim 8
Dependent Claim
15 words
The IC card of claim 4 wherein said comparison means comprises a central processing unit.
Claim 9
Dependent Claim
98 words
In an IC card provided with a display means which includes a transparent display panel having a back surface and is adapted to move a non-transparent indicator mark, the improvement wherein said IC card comprises solar batteries disposed on said back surface at individual predetermined positions and intended to be indicated by said indicator mark, said IC card being adapted to receive data by placing said mark at one of said individual positions and causing said mark to thereby prevent external incident light from reaching the one of said solar batteries corresponding to said one of said positions.
Claim 10
Dependent Claim
98 words
In an IC card provided with a display means which includes a transparent display panel having a back surface and is adapted to move a non-transparent indicator mark, the improvement wherein said IC card comprises solar batteries disposed on said back surface at individual predetermined positions and intended to be indicated by said indicator mark, said IC card being adapted to receive data by placing said mark at one of said individual positions and causing said mark to thereby prevent external incident light from reaching the one of said solar batteries corresponding to said one of said positions.
Claim 11
Dependent Claim
15 words
The IC card of claim 7 wherein said display means comprises a liquid crystal cell.
Claim 12
Dependent Claim
12 words
The IC card of claim 7 wherein said mark is a cursor.
References Cited (Backward Citations)
US4185281A
Cited
US4701601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |