English to French Tech/Engineering Law: Patents, Trademarks, Copyright Causing Relative Motion

As the particle moves along the pattern, emission is modulated according to the speed of the particle and the periodicity of the stripe pattern; examples of signals that may be used include periodic, chirped, and random signals.

Exemplary types of patterned environments described herein include random patterns, periodic patterns, and chirp patterns: As used herein regarding patterned environments, the term "random" refers to a pattern that is non-periodic over the entire length of a longitudinal sequence of regions; in contrast, a "periodic" sequence has at least one pattern that repeats more than once across the sequence's longitudinal length; and "chirp" sequences meet the above definition of random but can, with linearly varying time-scaling, meet the above definition of periodic, in effect being a sequence of periods of linearly changing frequency or wavelength.

Although nonuniform relative motion can have any of a multitude of types of speed/direction variation, the types of speed/direction variation that are described below in relation to exemplary implementations include periodically varying, randomly varying, and/or chirp-varying relative motion. These types are applicable to a variety of implementations, including, for example, implementations in which sensing results include only information resulting from speed/direction variation and also including implementations in which sensing results include information both from speed/direction variation and also from a patterned environment, such as an excitation, filtering, or sensing pattern. As used herein, nonuniform relative motion within a sensing region is "periodically varying" if the sensing results are periodic, i.e. they include at least one pattern that repeats more than once within the sensing region; in contrast, nonuniform relative motion is "randomly varying" if it is not periodically varying; and randomly varying nonuniform relative motion is "chirp-varying" if the sensing results can be linearly time-scaled to obtain periodic sensing results. All these types of variation can be implemented in various ways, such as in fluidic implementations and/or implementations in which objects are on support structures.

In exemplary implementations described below, nonuniform relative motion caused by shaped inner surfaces of channel walls can be periodically varying, randomly varying, or chirp-varying. A region of a channel with wall shapes that cause nonuniform relative motion is sometimes referred to herein as a "shaped-wall region".