Computer graphics processing and selective visual display system – Computer graphics display memory system
Reexamination Certificate
2006-03-29
2011-11-15
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Computer graphics display memory system
C711S001000
Reexamination Certificate
active
08059129
ABSTRACT:
A fast rasterizer uses a fast memory that has a bit-set port for receiving data and a totally independent readout and clear port for outputting a waveform image. The fast memory is organized into rows and columns corresponding to the rows and columns of a raster display device, with each memory location or cell holding a single bit. The fast memory is divided into parallel sections so that one column of each section may be written into each clock cycle, resulting in the possibility of writing a plurality of columns into the fast memory each clock cycle. Each memory cell is set when a row and column write signal for the cell are asserted, and is read out and cleared when a row and column read signal for the cell are asserted. Row logic using thermometer codes is used to set the row lines for the selected column in each section.
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Beale Terrance R.
Sullivan Steven K.
Awad Amr
Cerullo Liliana
Gray Francis I.
Lenihan Thomas F.
Tektronix Inc.
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