Patent ID: 7068324

Claim:
A system for displaying graphics data and video data in a digital television receiver, comprising: a decoder that decodes an input video data stream and provides decoded video data; a memory that stores the decoded video data and graphics data; a video output unit that processes the stored decoded video data for display on the digital television receiver, where the video output unit receives a first set of synchronization signals; a graphics output unit that processes the stored graphics data for display on the digital television receiver, and where the graphics output unit receives a second set of synchronization signals; a mixer that receives an output signal from the video output unit; and a switch that selectively provides an output signal from the graphics output unit to the mixer; where when the switch is closed the switch provides the output signal from the graphics output unit to the mixer and the mixer mixes the output signal from the video output unit with the output signal from the graphics output unit, and when the switch is open the mixer provides the output signal from the video output unit.