Replay Recorded Touch Input Data for Palm Rejection Testing

The patent creates a digital copy of actual user touch interactions by recording touch input data from diverse users during normal device usage. This recorded data captures the characteristics of inadvertent contacts (palm touches) without requiring live human testers during the evaluation phase. The copy can be replayed repeatedly on test devices, providing both comprehensive user perspective coverage and consistent, repeatable measurement results.

The system enables automated testing where the recorded touch input data serves itself as the test stimulus. The replay mechanism automatically generates touch events on the touchscreen without requiring human operators to physically touch the device during testing. This self-service approach allows unlimited replay of the same test scenarios across multiple devices simultaneously, dramatically improving scalability while maintaining the flexibility to test various palm rejection scenarios.

The patent creates a universal testing framework where recorded touch input data can be replayed on any touchscreen device regardless of manufacturer or specific model. The standardized replay mechanism and objective measurement metrics enable consistent evaluation across different devices, allowing cross-device comparison while still permitting device-specific optimization of palm rejection algorithms. The universal data format and playback interface work with various touchscreen technologies and operating systems.

The system uses recorded touch input data as objective feedback about actual user interactions with the touchscreen. Instead of collecting subjective opinions after the fact, the recorded data provides direct, measurable evidence of how users actually touch the device, including the characteristics of inadvertent palm contacts. This objective feedback loop enables precise measurement of palm rejection performance while still reflecting real-world usage patterns captured during normal device operation.