Parallel serial controller
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United States of America Patent
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-
Jan 29, 1985
Grant Date -
N/A
app pub date -
Sep 9, 1982
filing date -
Sep 2, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer-peripheral interface includes a latch to receive parallel data from a peripheral, such as a cash register, with a hardware mask to reject irrelevant data, a simple FIFO memory and a parallel-serial converter for transmission to a controlling computer. These devices are controlled by a combination of five one-shots for timing, and a D flip-flop and gates. The problem of controlling a variety of peripherals, such as cash registers, by a central computer without also incorporating microprocessors or equivalent complicated devices in each peripheral yet still providing sufficient data handling capacity is solved.
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