Patent US5832207A successfully refreshed from Google Patents.
US5832207A
Expired / Lapsed
US
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Secure module with microprocessor and co-processor
Assignee: Maxim Integrated Products Inc
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Filing: 1996-07-19
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Granted: 1998-11-03
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Expires: 2016-07-19
Abstract
Abstract An electronic module having at least a microprocessor and co-processor on a single integrated circuit. The electronic module can be contained in a small housing. The electronic module provides secure bidirectional data communication via a data bus. The electronic module may include integrated circuit comprising a microprocessor, and a co-processor adapted to handle 1,024-bit modulo mathematics primarily aimed at RSA calculations. The electronic module is preferably contained in a small token sized metallic container and will preferably communicate via a single wire data bus which uses a one-wire protocol.
Inventors
- 👤 Wendell Little
- 👤 Andreas Curiger
- 👤 Stephen N. Grider
- 👤 David A. Bunsey
- 👤 James E. Bartling
- 👤 Shyun Liu
- 👤 Bradley M. Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:13
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/58; G06F7/588; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/1004; G06F21/00; G06F21/60; G06F21/602; G06F21/70; G06F21/71; G06F21/72; G06F21/73; G06F21/81; G06F21/86; G06F21/87; G06F9/00; G06F9/06; G06F9/30; G06F9/30098; G06F9/3012; G06F9/30134; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/409; G06Q20/4097; G06Q20/40975; G07; G07F; G07F7/00; G07F7/08; G07F7/0806; G07F7/0813; G07F7/082; G07F7/10; G07F7/1008; G11; G11C; G11C5/00; G11C5/06; G11C5/14; G11C5/143; G11C7/00; G11C7/24; G11C8/00; G11C8/20; H; H04; H04L; H04L25/00; H04L25/02; H04L25/026; H10; H10W; H10W42/00; H10W42/40; G06F2211/00; G06F2211/007; G06F2221/00; G06F2221/21; G06F2221/2143; G06F2221/2153; H10W90/00; H10W90/701; H10W90/721; H10W90/724; Y; Y10; Y10S; Y10S257/00; Y10S257/922
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
57 words
A electronic module comprising: a one wire interface for bidirectionally interfacing said electronic module to another electronic device via a single wire; a one wire UART connected to said one-wire interface; a microprocessor core circuitry connected to said one wire UART; and a memory circuit connected to said one wire UART and to said microprocessor core circuitry.
Claim 2
Dependent Claim
57 words
A electronic module comprising: a one wire interface for bidirectionally interfacing said electronic module to another electronic device via a single wire; a one wire UART connected to said one-wire interface; a microprocessor core circuitry connected to said one wire UART; and a memory circuit connected to said one wire UART and to said microprocessor core circuitry.
Claim 3
Dependent Claim
26 words
The electronic module of claim 1, wherein said electronic module is a single chip integrated circuit having dimensions of less than 400 mils by 220 mils.
Claim 4
Dependent Claim
19 words
The electronic module of claim 1, wherein said module operates via parasitic power from data on said single wire.
Claim 5
Dependent Claim
16 words
The electronic module of claim 1, further comprising identification circuitry associated with said one wire UART.
Claim 6
Dependent Claim
16 words
The electronic module of claim 1, further comprising a coprocessor adapted to handle encryption related mathematics.
Claim 7
Dependent Claim
35 words
The electronic module of claim 1, further comprising a real time clock adapted to operate continuously from the time said electronic module is assembled until a power supply is not provided to said electronic module.
Claim 8
Dependent Claim
17 words
The electronic module of claim 1, wherein said electronic module can be incorporated into an articulatable object.
Claim 9
Dependent Claim
25 words
The electronic module of claim 7, wherein said electronic module is used to store information and to encrypt data associated with said another electronic device.
Claim 10
Dependent Claim
50 words
An microprocessor based electronic module adapted to communicate with a host circuit, comprising: a single wire data and power interface; a one wire UART connected to said single wire data and power interface; a data bus connected to said one wire UART; and a microprocessor connected to said data bus.
Claim 11
Dependent Claim
50 words
An microprocessor based electronic module adapted to communicate with a host circuit, comprising: a single wire data and power interface; a one wire UART connected to said single wire data and power interface; a data bus connected to said one wire UART; and a microprocessor connected to said data bus.
Claim 12
Dependent Claim
17 words
The microprocessor based electronic module of claim 9, further comprising a coprocessor connected to said data bus.
Claim 13
Dependent Claim
19 words
The microprocessor based electronic module of claim 9, further comprising a real time clock connected to said data bus.
Claim 14
Dependent Claim
17 words
The microprocessor based electronic module of claim 9, wherein said one wire UART comprises an identification circuit.
Claim 15
Dependent Claim
22 words
The microprocessor based electronic module of claim 9, wherein said electronic module is approximately the size of a stack of 4 dimes.
Claim 16
Dependent Claim
22 words
The microprocessor based electronic module of claim 9, wherein said electronic module is adapted to be incorporated into a portable, articulatable item.
Claim 17
Dependent Claim
14 words
The microprocessor based electronic module of claim 9, being adapted to process encrypted information.
Claim 18
Dependent Claim
15 words
The microprocessor based electronic module of claim 9, being adapted to facilitate secure data transfers.
Claim 19
Dependent Claim
17 words
The microprocessor based electronic module of claim 9, further comprising memory circuitry connected to said data bus.
Claim 20
Dependent Claim
25 words
The microprocessor based electronic module of claim 9, wherein power is parasitically obtained for said electronic module via said single wire data and power interface.
Claim 21
Dependent Claim
39 words
The microprocessor based electronic module of claim 9, adapted to be incorporated into a housing, said housing having a cavity for containing said electronic module and a conductive contact electrically connected to said single wire data and power interface.
Claim 22
Dependent Claim
47 words
A microprocessor based data carrier, comprising: means for bidirectionally communicating over a single wire; means for encrypting data communicating over said single wire; and means for parasitically powering said data carrier, said data carrier being approximately the size of or smaller than a stack of 4 dimes.
Claim 23
Dependent Claim
47 words
A microprocessor based data carrier, comprising: means for bidirectionally communicating over a single wire; means for encrypting data communicating over said single wire; and means for parasitically powering said data carrier, said data carrier being approximately the size of or smaller than a stack of 4 dimes.
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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) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |