US5949880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer of valuable information between a secure module and another module
Assignee: Murata Manufacturing Co Ltd
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Filing: 1997-11-26
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Granted: 1999-09-07
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Expires: 2017-11-26
Abstract
Abstract The present invention relates to system, apparatus and method for communicating valuable data from a portable module to another module via an electronic device. More specifically, the disclosed system, apparatus and method are useful for enabling a user to fill a portable module with a cash equivalent and to spend the cash equivalent at a variety of locations. The disclosed system incorporates an encryption/decryption method.
Inventors
- 👤 Stephen M. Curry
- 👤 Donald W. Loomis
- 👤 Michael L. Bolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:19
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06Q; G06Q20/00; G06Q20/08; G06Q20/10; G06Q20/108; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/36; G06Q20/367; G06Q20/3672; G06Q20/38; G06Q20/382; G06Q20/3821; G06Q20/40; G06Q20/409; G06Q20/4097; G06Q20/40975; G07F7/0806; G07F7/0813; G07F7/0826
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
A method for electronically transferring units of exchange between a first module and a second module, comprising the steps of: a. initiating communication between said first module and an electronic device; b. passing a first value datum from said first module to said electronic device; c. passing said first value datum from said electronic device to said second module; d. performing a mathematical calculation on said first value datum thereby creating a second value datum; e. passing said second value datum from said second module to said electronic device; f. passing said second value datum from said electronic device to said first module; g. storing said second value datum in said first module; and h. discontinuing communication between said first module and said electronic device.
Claim 2
Independent Claim
125 words
A method for electronically transferring units of exchange between a first module and a second module, comprising the steps of: a. initiating communication between said first module and an electronic device; b. passing a first value datum from said first module to said electronic device; c. passing said first value datum from said electronic device to said second module; d. performing a mathematical calculation on said first value datum thereby creating a second value datum; e. passing said second value datum from said second module to said electronic device; f. passing said second value datum from said electronic device to said first module; g. storing said second value datum in said first module; and h. discontinuing communication between said first module and said electronic device.
Claim 3
Dependent Claim
14 words
The method of claim 1, wherein said first value datum represents a monetary equivalent.
Claim 4
Dependent Claim
12 words
The method of claim 1, wherein said first value datum is encrypted.
Claim 5
Dependent Claim
12 words
The method of claim 1, wherein said second value datum is encrypted.
Claim 6
Dependent Claim
70 words
The method of claim 3, wherein the step of performing a mathematical calculation comprises the steps of: m. decrypting said first value datum with a public key thereby creating a decrypted value; n. performing at least one of an addition function and a subtraction function on said decrypted value thereby creating a value result; and o. encrypting said value result with a private key thereby creating said second value datum.
Claim 7
Dependent Claim
20 words
The method of claim 1, wherein the step (b) of passing is performed over at least a single conductive contact.
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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) | 2002-09-06 | 2003-03-08 | 2003-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-06 | 2007-03-08 | 2007-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-06 | 2011-03-08 | 2011-09-07 | $7700.00 | Window Closed / Lapsed |