公开(公告)号：US20240354887A1

公开(公告)日：2024-10-24

申请号：US18637735

申请日：2024-04-17

申请人： MEDIATEK INC.

发明人： Yu-Hua WU ,  Yong-Guan LIAO ,  Kuan-Yu CHEN

IPC分类号： G06T1/20

CPC分类号： G06T1/20

摘要： A graphics system is provided. The graphics system includes a frame buffer, a timing controller, and a processing unit. The processing unit generating an output video frame based on a raw video frame. The output video frame includes the main window and a picture-in-picture window overlaid on the main window, and the picture-in-picture window is generated by zooming in a target region of the main window. The timing controller is configured to generates a first vertical synchronization signals to control the input timing for the processing unit to write the raw video frame into the frame buffer, and generate a second vertical synchronization signal to control an output timing for the processing unit to read the raw video frame from the frame buffer and generating the output video frame, such that specific timing conditions are met.