摘要:
An on-screen display system in which a CPU generates windows in a working memory space also provides for real time calculation of window addresses in the working memory space. This can eliminate the need for a separate frame buffer memory.
摘要:
An improved audio-visual circuit is provided that includes a transport packet parsing circuit for receiving a transport data packet stream, a CPU circuit for initializing said integrated circuit and for processing portions of said data packet stream, a ROM circuit for storing data, a RAM circuit for storing data, an audio decoder circuit for decoding audio portions of said data packet stream, a video decoder circuit for decoding video portions of said data packet stream, an NTSC/PAL encoding circuit for encoding video portions of said data packet stream, an OSD coprocessor circuit for processing OSD portions of said data packets, a traffic controller circuit moving portions of said data packet stream between portions of said integrated circuit, an extension bus interface circuit, a P1394 interface circuit, a communication coprocessors circuit, an address bus connected to said circuits, and a data bus connected to said circuits.
摘要:
An on-screen display with variable resolution capability permits respective parts of a screen to be processed according to their respective resolution requirements. For any active window in the on-screen display, the data format used in memory to represent the pixels of that window can be determined, thereby permitting the window resolution to vary from window to window.