General purpose parallel port interface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 1994
Grant Date -
N/A
app pub date -
May 31, 1991
filing date -
May 31, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A general purpose interface is provided for connecting a floppy disk drive to a parallel port of a personal computer. The interface comprises an interface circuit and software driver circuit operated by the CPU. The interface circuit emulates the internal bus circuit in the CPU and can be used with virtually any disk controller. The interface circuit uses gate arrays as state machine logic elements to perform various functions, eliminating requirements for a microprocessor and plural memory chips.
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