Patent ID: 8111179
Filing Date: 2012-02-07
Classification: B60R,H03M

Abstract:
1. A rearview assembly for a vehicle, said rearview assembly comprising: a mounting structure for attaching to a vehicle, said mounting structure comprising a housing; a rearview element disposed in said housing for providing the driver with a view to the rear of the vehicle; a continuously variable slope delta encoder module disposed on or within said mounting structure, wherein said continuously variable slope delta encoder module is configured to generate a feedback signal; a pre-processing module disposed on or within said mounting structure, wherein said pre-processing module is configured to receive a source signal, a feedback signal and a first filtered signal from a first filter to generate a pre-processed signal that is a function of the source signal and the feedback signal, and to supply the pre-processed signal to said continuously variable slope delta encoder module, and wherein said continuously variable slope delta encoder module generates the feedback signal as a function of the pre-processed signal received from said pre-processing module.