Patent ID: 6056410
Filing Date: 2000-05-02
Classification: B60R

Abstract:
A vehicular electrochromic rearview mirror system, comprising:a plurality of electrochromic rearview mirror assemblies and a plurality of electrochromic reflective elements, each associated with one of said electrochromic rearview mirror assemblies, wherein each of said electrochromic reflective elements assumes a partial reflectance level in response to a signal applied thereto;a drive circuit applying a drive signal to each of said electrochromic reflective elements, said drive circuit comprising a digital controller, a master drive circuit responsive to said digital controller to apply a first drive signal to one of said electrochromic reflective elements, and a slave drive circuit responsive to said digital controller to apply a second drive signal to a second of said electrochromic reflective elements, said second drive signal derived from said first drive signal.