Radius Corporation

Gregory M Millar

Dennis L Grimm

Terence E Worley

Erik A Gutfeldt

Joseph W Klingler

Nicolas N Moss

Clifton L Vaughan

Jon F Hueras

Tung-Faing Ko

A digital image processing system includes a microprocessor, random access memory, storage memory, input, display, and suitable logic to provide existing digital video image processing operations in a graphical user interface which allows the user to quickly and efficiently edit a movie. The system includes logic for displaying the assembled video and audio media, transitions, and special effects in a series of independent, time-correlated tracks which provide the system operator with a linear view of the movie as well as a quick understanding of the dataflow associated with the processing of the constituents of the movie at any point in time. In one embodiment, the system preserves the dataflow associated with processing a video clip by storing the information associated with that clip in a composite data file which includes not only the digital movie media in a conventional format, but also includes an additional data segment having the appropriate indices to any source clips and image processing effects, including the necessary timing and parameters for reproduction of the resultant clip. The system also preferably includes logic for creating, maintaining and displaying a separate render track which maintains the media corresponding to the portions of the program that have already been rendered in proper synchronization with those portions of the program that have been edited since the last rendering, thereby limiting any future rendering to those portions of the program which require reprocessing since the last rendering of the program of the movie.

Desktop digital video processing system

A method and apparatus for transmitting video data over a standard personal computer bus optimizes the video data transfer rate of the bus by parsing the video data into appropriately sized and selected blocks. The video data blocks required for display are stored in a first-in first-out register, addressed, and sent over the data bus of the computer. Video data not required for display is discarded. The video data may be addressed to any location in the memory of the computer for display or further processing.

Method and apparatus for transmitting video, data over a computer bus

A computer implemented process for extracting and processing information in a vertical interval of a video signal comprising a plurality of video lines selects a portion of the vertical interval from the video lines as the video lines are coupled to a computer bus, detects information stored in the selected portion, places the detected information on the bus of the computer, processes the detected information according to the portion of the vertical interval from which it is selected, and processes the video lines responsive to the detected information from the vertical interval.

Process of extracting and processing information in a vertical interval

A computer video display acceleration system and method is disclosed for increasing the speed with which modifications can be made to video memory. This system and method uses a video buffer section in system memory with high priority access by a central processing unit which can use the buffer space to make changes rapidly in the stored video information. Once the changes are completed, the data stored in the buffer is written as a block of data to video memory without requiring additional video memory read cycles.

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Pleasanton, CA, United States of America

Gregory M Millar