US4800255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic access card with visual display
Assignee: SUPRA GROUP Inc
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Filing: 1986-08-22
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Granted: 1989-01-24
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Expires: 2006-08-22
Abstract
Abstract Electronic access card comprising a printed circuit board. A microprocessor is carried by the printed circuit board. A keyboard is carried by the printed circuit board and is connected to the microprocessor for inserting information into the microprocessor. A coil is carried by the printed circuit board and is coupled to the microprocessor for receiving information to be conveyed to the microprocessor and for transmitting information from the microprocessor. Visual display means is coupled to the microprocessor for visually displaying information which is carried in the microprocessor.
Inventors
- 👤 Mir A. Imran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:22
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0723; G06K19/077; G06K19/07701; G06K19/07703; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/3415; G07C; G07C9/00; G07C9/20; G07C9/29
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
94 words
In an electronic access card for use with a lock device, a printed circuit board, a microprocessor carried by the printed circuit board, keyboard means connected to the microprocessor for inserting information into the micrprocessor, coupling means coupled to the microprocessor and adapted to receive information from the lock device to be conveyed to the microprocessor and adapted to transmit information from the microprocessor to the lock device and visual display means coupled to the microprocessor for visually displaying information which is carried in the microprocessor and supplied to or from the lock device.
Claim 2
Dependent Claim
94 words
In an electronic access card for use with a lock device, a printed circuit board, a microprocessor carried by the printed circuit board, keyboard means connected to the microprocessor for inserting information into the micrprocessor, coupling means coupled to the microprocessor and adapted to receive information from the lock device to be conveyed to the microprocessor and adapted to transmit information from the microprocessor to the lock device and visual display means coupled to the microprocessor for visually displaying information which is carried in the microprocessor and supplied to or from the lock device.
Claim 3
Dependent Claim
26 words
A card as in claim 1 wherein the keyboard means is a full alphanumeric keyboard and scroll keys for scrolling information received from the lock device.
Claim 4
Dependent Claim
16 words
A card as in claim 1 wherein the means coupled to the microprocessor includes electronic circuitry.
Claim 5
Dependent Claim
14 words
A card as in claim 3 wherein said electronic circuitry is passive electronic circuitry.
Claim 6
Dependent Claim
14 words
A card as in claim 3 wherein said electronic circuitry as active electronic circuitry.
Claim 7
Dependent Claim
24 words
A card as in claim 5 wherein said active electronic circuitry includes transistor means and a high frequency gatable oscillator connected to the transistor.
Claim 8
Dependent Claim
24 words
A card as in claim 4 wherein said passive electronic circuitry includes a bridge and transistor means coupled between the microprocessor and the bridge.
Claim 9
Dependent Claim
13 words
A card as in claim 3 wherein said electronic circuitry includes filter means.
Claim 10
Dependent Claim
19 words
A card as in claim 1 together with a battery carried by the card and connected to the microprocessor.
Claim 11
Dependent Claim
37 words
A card as in claim 9 together with low battery comparison means coupled to the battery and to the microprocessor to provide a low battery indication on the display in the event a low battery condition occurs.
Claim 12
Dependent Claim
14 words
A card as in claim 1 wherein said display is a liquid crystal display.
Claim 13
Dependent Claim
14 words
A card as in claim 1 together with a clock coupled to the microprocessor.
Claim 14
Dependent Claim
15 words
A card as in claim 1 together with acoustical communication means coupled to the microprocessor.
Claim 15
Dependent Claim
16 words
A card as in claim 13 wherein said acoustical communication means includes a synthetic speech synthesizer.
Claim 16
Dependent Claim
73 words
In an electronic access card for use with a lock device, a printed circuit board, a microprocessor carried by the printed circuit board, keyboard means carried by the printed circuit board and connected to the microprocessor for inserting information into the microprocessor, coupling means carried by the printed circuit board and coupled to the microprocesor and adapted to receive information from the lock device and adapted to transmit information to the lock device.
Claim 17
Dependent Claim
73 words
In an electronic access card for use with a lock device, a printed circuit board, a microprocessor carried by the printed circuit board, keyboard means carried by the printed circuit board and connected to the microprocessor for inserting information into the microprocessor, coupling means carried by the printed circuit board and coupled to the microprocesor and adapted to receive information from the lock device and adapted to transmit information to the lock device.
Claim 18
Dependent Claim
15 words
A card as in claim 15 wherein said keyboard means is a complete alphanumeric keyboard.
Claim 19
Dependent Claim
33 words
A card as in claim 15 wherein said active electronic circuitry includes transistor means connected to the coil and a high frequency gatable oscillator coupled to the microprocessor and coupled to the transistor.
Claim 20
Dependent Claim
21 words
A card as in claim 15 together with filter means connected between the coil means and the input to the microprocessor.
Claim 21
Dependent Claim
25 words
A card as in claim 15 together with a battery carried by the card and connected to the microprocessor and to the active electronic circuitry.
Claim 22
Dependent Claim
32 words
A card as in claim 19 together with low voltage battery ascertaining circuitry connected to the battery and coupled to the microprocessor for giving an indication when a low battery condition occurs.
Claim 23
Dependent Claim
15 words
A card as in claim 15 together with a visual display coupled to the microprocessor.
Claim 24
Dependent Claim
20 words
A card as in claim 15 together with audible communication means coupled to the microprocessor and carried by the card.
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) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |