IP Library Granted Patent US 12,423,217
Granted Patent B2
US 12,423,217 · App. 17/458,544 · Granted Sep 23, 2025

Test codes for secure test mode on math assistance devices

Inventors: Trevor Thomas Chapman (Allen, TX); Stephen B Loe (Dallas, TX); Malgorzata Anna Brothers (Plano, TX); Matt Thomas Nicolosi (Delaware, OH); Michel Georges Stella (Dallas, TX)
Assignee: TEXAS INSTRUMENTS INCORPORATED
G06F11/368G06F11/3684G06F21/74
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Quick Facts
Patent No.
US 12,423,217
App. No.
17/458,544
Granted
Sep 23, 2025
Kind
B2
Abstract

A method for test configuration on a first math assistance device is provided that includes receiving a test code by the first math assistance device, wherein the test code includes one or more functionality restrictions, and entering secure test mode on the first math assistance device with the one or more functionality restrictions.

Claims (36)

1. A method for test configuration on a first math assistance device, the method comprising:

receiving a test code by the first math assistance device, wherein the test code comprises one or more functionality restrictions; and

entering secure test mode on the first math assistance device with the one or more functionality restrictions.

2. The method of claim 1 , wherein the test code further comprises one or more test settings and entering secure test mode further comprises entering the secure test mode with the one or more test settings.

3. The method of claim 1 , wherein the first math assistance device is a handheld graphing calculator.

4. The method of claim 1 , wherein the first math assistance device is a digital device comprising math software.

5. The method of claim 1 , wherein receiving a test code further comprises manual entry of the test code by a user of the first math assistance device.

6. The method of claim 5 , wherein receiving a test code further comprises determining whether the test code is valid or invalid.

7. The method of claim 6 , wherein receiving a test code further comprises displaying a message indicating an upgrade may be needed when the test code is invalid.

8. The method of claim 1 , wherein receiving a test code further comprises user selection of functionality restrictions on the first math assistance device, wherein the test code is generated responsive to the user selection.

9. The method of claim 1 , wherein entering secure test mode further comprises displaying a summary of the one or more functionality restrictions comprised by the test code.

10. The method of claim 1 , wherein the test code is generated on a second math assistance device, wherein a user of the second math assistance device selects the one or more functionality restrictions.

11. The method of claim 1 , wherein receiving a test code further comprises receiving the test code from a second math assistance device communicatively coupled to the first math assistance device.

12. A math assistance device comprising:

a non-transitory computer-readable medium storing software instructions to:

receive a test code by the math assistance device, wherein the test code comprises one or more functionality restrictions; and

enter secure test mode on the math assistance device with the one or more functionality restrictions; and

at least one processor coupled to the non-transitory computer-readable medium to execute the software instructions.

13. The math assistance device of claim 12 , wherein the test code further comprises one or more test settings and entering secure test mode further comprises entering the secure test mode with the one or more test settings.

14. The math assistance device of claim 12 , wherein the math assistance device is a handheld graphing calculator.

15. The math assistance device of claim 12 , wherein the math assistance device is a digital device comprising math software.

16. The math assistance device of claim 12 , wherein the software instructions to receive a test code further comprise software instructions for manual entry of the test code by a user of the math assistance device.

17. The math assistance device of claim 16 wherein the software instructions to receive a test code further comprise software instructions to determine whether the test code is valid or invalid.

18. The math assistance device of claim 17 , wherein the software instructions to receive a test code further comprise software instructions to display a message indicating an upgrade may be needed when the test code is invalid.

19. The math assistance device of claim 12 , wherein the software instructions to receive a test code further comprise software instructions for user selection of functionality restrictions on the math assistance device, wherein the test code is generated responsive to the user selection.

20. The math assistance device of claim 12 , wherein the software instructions to enter secure test mode further comprise software instructions to display a summary of the one or more functionality restrictions comprised by the test code.

21. The math assistance device of claim 12 , wherein the test code is generated on a second math assistance device, wherein a user of the second math assistance device selects the one or more functionality restrictions.

22. The math assistance device of claim 12 , wherein the software instructions to receive a test code further comprise software instructions to receive the test code from a second math assistance device communicatively coupled to the math assistance device.

23. A method for generating a test code, the method comprising:

displaying a test configuration interface on a math assistance device, wherein the test configuration interface comprises a plurality of functionality restrictions;

receiving user selection of one or more functionality restrictions in the plurality of functionality restrictions; and

generating a test code corresponding to the one or more functionality restrictions.

24. The method of claim 23 , further comprising saving the test code in association with a user specified name.

25. The method of claim 23 , wherein the math assistance device is a handheld graphing calculator.

26. The method of claim 23 , wherein the math assistance device is a digital device comprising math software.

27. The method of claim 23 , wherein the test configuration interface further comprises at least one test setting and wherein receiving user selection further comprises receiving user selection of the at least one test setting and generating a test code further comprises generating a test code corresponding to the one or more functionality restrictions and the at least one test setting.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2021
From: CHAPMAN, TREVOR THOMAS; LOE, STEPHEN B; BROTHERS, MALGORZATA ANNA; NICOLOSI, MATT THOMAS; STELLA, MICHEL GEORGES
To: TEXAS INSTRUMENTS INCORPORATED
Reel/Frame 057309/0215 →
Continuity (2)
Provisional Application 63116310 · Nov 20, 2020
Related Publication 20220164307A1 · May 26, 2022
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