Method for synchronizing an image data source and a resonant mirror system to generate images

A method of synchronizing a frame of received video signals with a high frequency resonant scanning mirror and a low frequency scan line positioning mirror of a video display system comprising the steps of:

• storing signals representative of pixels of a frame of video to be displayed, said pixels organized in lines of said display;
• determining the position of said low frequency scan line positioning mirror and generating an arming signal representing the start point of a first scan line of a video frame;
• determining the position said high frequency resonant scanning mirror and generating a high frequency trigger signal representing the start of each scan line of said video frame;
• synchronizing the display of the first pixel of the first line of said frame of received video signals with said arming signal;
• and
• synchronizing the display of the first pixel of each scan line of said frame of received video signals with said trigger signal.

In an imaging system comprising a scanning mirror for generating a plurality of scan lines to form an image, a method of synchronizing said scanning mirror with image signals comprising the steps of:

• providing a drive signal to oscillate said scanning mirror at a known frequency;
• storing a multiplicity of image signals, in a buffer, said multiplicity of signals representing pixels comprising at least one of said plurality of scan lines;
• determining a start point for said scan line;
• determining when said oscillating mirror passes a predetermined location;
• calculating the timing of a trigger signal in response to said known frequency and said oscillating mirror passing said predetermined location;
• and
• providing said trigger signal to initiate the release of said stored multiplicity of image signals to generate said scan lines.

In an imaging system comprising a high speed resonant scanning mirror for generating a plurality of scan lines to form an image frame, and a low frequency mirror for orthogonally positioning said scan lines, a method of synchronizing said low frequency mirror with frames of incoming imaging signals, and synchronizing said imaging signals with said resonant scanning mirror comprising the steps of:

• generating a cyclic drive signal to position said low frequency mirror along a path defining upper and lower peak portions and a display portion;
• receiving said frames of incoming imaging signals for being displayed, each said frame including a timing signal;
• adjusting one of said upper and lower peak portions of said cyclic drive signal to synchronize said cyclic drive signal with said timing signal of each incoming frame of said imaging signals;
• generating an arming signal representative of the start point of an image frame;
• providing a drive signal to oscillate said scanning mirror at its known resonant frequency;
• sequentially storing a multiplicity of said imaging signals in a buffer, said sequentially stored multiplicity of signals representing pixels comprising each of said plurality of scan lines comprising said image frame;
• determining a start point for each of said scan lines;
• determining when said oscillating scanning mirror passes a predetermined location;
• calculating the timing of “trigger” signals in response to said known frequency and said resonant mirrors passing said predetermined location;
• displaying each said frame of imaging signals during said display portion of said cyclic drive signal in response to said arming signal;
• and
• releasing said stored multiplicity of image signals in response to said trigger signals to generate said plurality of scan lines.