Determining theft of grammar code

• US 6,115,820 A
• Filed: 06/01/1998
• Issued: 09/05/2000
• Est. Priority Date: 06/01/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Lewis, James R.
• Primary Examiner(s): Iqbal, Nadeem
• Application Number:
  US09/088,540
• Time in Patent Office: 827 Days
• Field of Search: 713/200, 713/201, 713/202, 340/825.34, 340/825.31, 380/3, 380/4, 380/19, 380/23, 380/24, 380/25, 380/28, 704/275, 704/270, 704/235, 379/88, 379/188
• US Class Current: 726/26
• CPC Class Codes: G06F 21/16 Program or content traceability, e.g. by watermarking
• CPC Class Codes: G10L 15/19 Grammatical context, e.g. disambiguation of the recognition hypotheses based on word sequence rules

Abstract

A method for programming a grammar code for a speech-enabled computer program, comprising the steps of: enabling a plurality of natural command grammars containing respective representations of valid expressions for said speech-enabled computer program; providing as one of said valid expressions a plurality of ordered words virtually certain not to be uttered by someone not already aware of said plurality of ordered words; and, causing said program to automatically initiate a perceptible action in response to recognition of said plurality of ordered words. The method can further comprise the step of providing translation rules for said plurality of command grammars, wherein speech recognition of said plurality of ordered words invokes one of said translation rules, said invoked one of said translation rules initiating said perceptible action. The action can be activation of a predetermined printer function, displaying a predetermined message on a display device and printing a predetermined message.

Claims

1. A method for determining theft of grammar code, said grammar code having a plurality of natural command grammars containing representations of valid expressions for a speech-enabled computer program, comprising the steps of:

adding a valid test expression to said program, said test expression including words virtually certain not to be uttered by someone not already aware of said test expression; and

,

causing said program to automatically initiate a perceptible action in response to recognition of said test expression.

2. The method of claim 1, further comprising the step of uttering said test expression for recognition by a speech recognition program suspected of being a copy of said computer program.

3. The method of claim 1, wherein said action is activation of a predetermined printer function.

4. The method of claim 1, wherein said action is displaying a predetermined message on a display device.

5. The method of claim 1, wherein said action is printing a predetermined message.

6. A method for programming a grammar code for a speech-enabled computer program, comprising the steps of:

enabling a plurality of natural command grammars containing respective representations of valid expressions for said speech-enabled computer program;

providing as one of said valid expressions a plurality of ordered words virtually certain not to be uttered by someone not already aware of said plurality of ordered words; and

,

causing said program to automatically initiate a perceptible action in response to recognition of said plurality of ordered words.

7. The method of claim 6, wherein said action is activation of a predetermined printer function.

8. The method of claim 6, wherein said action is displaying a predetermined message on a display device.

9. The method of claim 6, wherein said action is printing a predetermined message.

10. The method of claim 6, further comprising the step of providing translation rules for said plurality of command grammars.

11. The method of claim 10, wherein speech recognition of said plurality of ordered words invokes one of said translation rules, said invoked one of said translation rules initiating said perceptible action.