Patent ID: 6366307
Filing Date: 2002-04-02
Classification: G06K,H04N

Abstract:
A system for enabling a pulse width modulator to render video data for a laser at a frequency independent of the operating frequency of the pulse width modulator, the system comprising:phase measuring circuitry operative to detect a phase offset on a scan line for the laser; edge output determining circuitry operative to determine which system clock cycle to output an edge on the system clock to act as if it were on a video clock; edge location circuitry operative to implement pulse width modulation (PWM) in order to locate placement of an edge for a given pixel; and a summer communicating with the phase measuring circuitry, the edge output determining circuitry, and the edge location circuitry, the summer operative to combine values from the phase measuring circuitry, the edge output determining circuitry, and the edge location circuitry to generate a desired video signal.