Method for controlling dataflow between a plurality of circular

Details Method for controlling dataflow between a plurality of circular Method for controlling dataflow between a plurality of circular

1993-05-26

1995-08-29

Powell, Mark R.

395164, G06F 1516

Patent

active

054468396

ABSTRACT:
A video processor system has memory locations for storing images including a buffer block of memory locations. Two separate video processors within the system read and write the buffer block while performing video processor functions. Each of the two video processors has its own read pointer and its own write pointer for indicating locations within the buffer block where it is currently reading or writing an image which it is processing. Both sets of read and write pointers advance through the buffer block as the images are processed. When the pointers reach the end of the buffer block they wrap around to the beginning thereby defining circular buffers. The operations of the two video processors, as well as the reading, advancing, and adjusting of the pointers, is adapted to cause the circular buffers to occupy the same physical memory locations simultaneously.

REFERENCES:
patent: 5329318 (1994-07-01), Keith

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