LATENCY MEASURING AND TESTING SYSTEM AND METHOD

摘要

A system and method are disclosed for measuring latency in a device which includes a user interface that receives user input and provides output in response. In an embodiment, a body separate from the device under test is provided. A first sensor operatively attached to the body detects a touch event input to the device at a first time and a second sensor detects a response output from the device at a second time. A computational engine computes a time differential between the first time and the second time and an output outputs an indication of a measurement of latency in the device, the measurement being reflective of the time differential between the first time and the second time.

主权项

1. A system for measuring latency at any of a plurality of points on a device which includes a touch surface that receives user input and provides graphical output in response thereto, comprising:
a body separate from the device, the body having a proximal end and a distal end; at least one contact sensor operatively attached to the distal end of the body for detecting a touch event input to the device at a first time; at least one graphical change sensor for detecting a graphical response output from the device at a second time, the response being responsive to the touch event; a computational engine operatively connected to the at least one contact sensor and the at least one graphical change sensor, the computational engine for computing a time differential between the first time and the second time; and, output configured to identify a measurement of latency between the touch event and a graphical response in the device, the measurement being reflective of the time differential between the first time and the second time.