Abstract: The invention discloses a method to measure end-to-end and partial latency between an input interface and an output interface of a processing device. The invention uses a generator of a calibrated output to be output by the processing device through the output interface and a sensor configured to capture the calibrated output and send it to a processing unit of the processing device through the input interface. An advantageous arrangement of a calibrated output is a specific texture to be output by a screen and captured by an optical sensor. A specific texture comprises elementary patterns which have a defined number of pixels and a defined proportion and location of dark and light pixels. According to certain aspects of the invention, a calibration of latency is performed based on a number of parameters defining the hardware and/or software configuration of the processing device, and/or its conditions of operation.

Abstract: A ski add-on kit for fitting under the wheels of baby strollers generally comprises an elongated panel member including a front spatula portion and a rear spatula portion, wherein the spatula portions are formed at an angle to a main surface of the panel member, and an elongated guide slot; a pair of wheel support members adapted to receive and hold a wheel member, wherein the wheel support members are adapted to slide and be releasably held within the guide slot in order to be adapted to releasably hold the wheel member securely therebetween, such that the wheel member can then be supported upon the panel member and slide smoothly along slippery, granular, or other unstable surfaces.