Patent US5768386A successfully refreshed from Google Patents.
US5768386A
Expired / Lapsed
US
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Method and system for encrypting input from a touch screen
Assignee: Citicorp Credit Services Inc USA
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Filing: 1996-05-31
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Granted: 1998-06-16
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Expires: 2016-05-31
Abstract
Abstract An improved touch screen encryption device and method is disclosed. The user selects information from prompts displayed on a touch screen. The improved device determines the input information based upon the location of the touch. The device encrypts the information--for example, the user's personal identification number--and sends the encrypted information to a remote processor. The device and method may be used by a financial institution (such as a bank), a postal services institution or wherever sensitive information is input through a touch screen.
Inventors
- 👤 Randal H. Yokomoto
- 👤 Warren Yung-Hang Tan
- 👤 Yosif Smushkovich
- 👤 Xuan S. Bui
- 👤 Michael Merman
- 👤 Inas M. Dessouky
- 👤 Cuong Do
- 👤 Stephen M. Gryte
- 👤 Phoebe Rin-Rin Hsu
- 👤 Robert R. Propp
- 👤 Michael L. Sears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:37
CPC Classifications
G; G06; G06F; G06F3/00; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G06F21/00; G06F21/70; G06F21/82; G06F21/83; G06F2211/00; G06F2211/007
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
173 words
A method for an improved touch screen device for use with an associated terminal comprising of: a user inputting information into a touch screen device having a tamper resistant touch screen device housing and at least one processor located within said tamper resistant touch screen device housing by touching a location on a touch screen in response to a prompt displayed on said touch screen; said touch screen device determining the coordinates of said location by sensors associated with said touch screen device; said touch screen device determining the input information associated with said location by said at least one processor located within said tamper resistant touch screen device housing; said touch screen device encrypting the input information by said at least one processor located within said tamper resistant touch screen device housing; and said touch screen device sending said encrypted input information to a processing unit within said terminal so that said encrypted input information upon exiting said tamper resistant touch screen device housing is encrypted as it moves through said terminal.
Claim 2
Independent Claim
173 words
A method for an improved touch screen device for use with an associated terminal comprising of: a user inputting information into a touch screen device having a tamper resistant touch screen device housing and at least one processor located within said tamper resistant touch screen device housing by touching a location on a touch screen in response to a prompt displayed on said touch screen; said touch screen device determining the coordinates of said location by sensors associated with said touch screen device; said touch screen device determining the input information associated with said location by said at least one processor located within said tamper resistant touch screen device housing; said touch screen device encrypting the input information by said at least one processor located within said tamper resistant touch screen device housing; and said touch screen device sending said encrypted input information to a processing unit within said terminal so that said encrypted input information upon exiting said tamper resistant touch screen device housing is encrypted as it moves through said terminal.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said terminal is associated with a financial institution.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said terminal is an ATM.
Claim 5
Dependent Claim
55 words
The method of claim 1 wherein said tamper resistant touch screen device housing contains at least a first processor and a second processor and the determining step is done by said first processor associated with said touch screen device and said encrypting step is done by said second processor associated with said touch screen device.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein said sensors employ infrared light beams.
Claim 7
Dependent Claim
17 words
The method of claim 1 wherein the only input information which is encoded is the user's PIN.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein said prompt in said inputting step includes a keypad display.
Claim 9
Dependent Claim
18 words
The method of claim 7 wherein said input information includes a PIN consisting of three to twelve digits.
Claim 10
Dependent Claim
12 words
The method of claim 2 wherein said financial institution is a bank.
Claim 11
Dependent Claim
15 words
The method of claim 1 wherein said terminal is an automated postal services vending machine.
Claim 12
Independent Claim
172 words
A system for an improved touch screen device for use with an associated terminal comprising: said touch screen device including a tamper resistant touch screen device housing and at least one processor located within said tamper resistant touch screen device housing; said touch screen device further including location sensing means for determining the location of a touch on a screen said touch being performed by said user in response to a prompt being displayed on said screen and said touch being associated with information displayed on said screen; information determining means including at least one processor located within said tamper resistant touch screen device housing for determining the information based upon said location; encrypting means including at least one processor located within said tamper resistant touch screen device housing for encrypting said information; and sending means for sending the encrypted information to a remote processor associated with said terminal so that said encrypted input information upon exiting said tamper resistance touch screen device housing is encrypted as it moves through said terminal.
Claim 13
Independent Claim
172 words
A system for an improved touch screen device for use with an associated terminal comprising: said touch screen device including a tamper resistant touch screen device housing and at least one processor located within said tamper resistant touch screen device housing; said touch screen device further including location sensing means for determining the location of a touch on a screen said touch being performed by said user in response to a prompt being displayed on said screen and said touch being associated with information displayed on said screen; information determining means including at least one processor located within said tamper resistant touch screen device housing for determining the information based upon said location; encrypting means including at least one processor located within said tamper resistant touch screen device housing for encrypting said information; and sending means for sending the encrypted information to a remote processor associated with said terminal so that said encrypted input information upon exiting said tamper resistance touch screen device housing is encrypted as it moves through said terminal.
Claim 14
Dependent Claim
14 words
The system of claim 11 wherein said terminal is associated with a financial institution.
Claim 15
Dependent Claim
11 words
The system of claim 11 wherein said terminal is an ATM.
Claim 16
Dependent Claim
38 words
The system of claim 11 wherein said tamper resistant touch screen device housing contains a first processor and a second processor and said information determining means includes said first processor and said encrypting means includes said second processor.
Claim 17
Dependent Claim
13 words
The system of claim 11 wherein said location sensing means employ infrared beams.
Claim 18
Dependent Claim
16 words
The system of claim 11 wherein the only information which is encoded is the user's PIN.
Claim 19
Dependent Claim
12 words
The system of claim 11 wherein said prompt includes a keypad display.
Claim 20
Dependent Claim
18 words
The system of claim 17 wherein said selected information is a PIN consisting of three to twelve digits.
Claim 21
Dependent Claim
12 words
The system of claim 12 wherein said financial institution is a bank.
Claim 22
Dependent Claim
15 words
The system of claim 11 wherein said terminal is an automated postal services vending machine.
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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) | 2001-06-15 | 2001-12-15 | 2002-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-15 | 2005-12-15 | 2006-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-15 | 2009-12-15 | 2010-06-16 | $7700.00 | Window Closed / Lapsed |