Method and apparatus for interleaving read and write accesses to a frame buffer

An apparatus for transferring data to and from a frame buffer, said apparatus comprising:

• a storage device storing digital pixel image data as a sequence of bit-planes;
• a frame buffer capable of storing one of said bit-planes;
• a digital pixel display that includes an array of pixel sites corresponding to an array of single-bits comprising each of said bit-planes;
• circuitry that controls data transfer from said storage device to said frame buffer and from said frame buffer to said digital pixel display;
• and
• a first program code to transfer said data by interleaving read and write accesses to said frame buffer, said program code comprising:
• alternately writing to said frame buffer and reading from said frame buffer at least two portions of each bit-plane of said bit-plane data;
• and
• writing to said frame buffer so as to replace each of said portions of each bit-plane in said frame buffer with a corresponding portion of a next bit-plane.

An apparatus for transferring data to and from a frame buffer, said apparatus comprising:

• said data stored in a storage device;
• a frame buffer;
• a digital pixel display;
• circuitry that controls data transfer from said storage device to said frame buffer and from said frame buffer to said digital pixel display;
• and
• a first program code to transfer said data by interleaving read and write accesses to said frame buffer, said program code comprising:
• alternately writing a portion of said data to said frame buffer and reading a portion of said data from said frame buffer;
• and
• after reading a first portion of said data from said frame buffer, writing each said a portion of said data so as to replace a portion of said data in said frame buffer that had been previously read from said frame buffer.

An apparatus for transferring data to and from a frame buffer, said apparatus comprising:

• data stored in a storage device;
• a frame buffer;
• a digital pixel display;
• circuitry that controls data transfer from said storage device to said frame buffer and from said frame buffer to said digital pixel display;
• and
• a first program code to transfer said data by alternately writing a portion of said data to and reading a portion of said data from said frame buffer, wherein each said reading a portion of said data comprises reading a different portion of data than that written to said frame buffer during the immediately prior said writing a portion of said data.