Look ahead terminal counter

Details Look ahead terminal counter Look ahead terminal counter

1986-06-18

1988-08-02

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Systems

Using particular code or particular counting sequence

377 29, 377 44, 377 55, 377 56, 377106, H03K 2140, G06F 1100

Patent

active

047618019

ABSTRACT:
A look ahead terminal counter and a method for generating a terminal count output signal are disclosed. The counter comprises a plurality of counter registers connected to counter enable circuitry for sequencing the registers at a predetermined counter rate. Terminal count enable circuitry is connected to the counter circuitry, e.g. at the input ports of the counter registers, and is operative to generate a terminal count enable signal when those input ports are at a predetermined state. The terminal count enable signal and clock signal are communicated to an output register operative to generate a terminal count output signal when a clock signal is received during the simultaneous presence of the terminal count enable signal.

REFERENCES:
patent: 2566085 (1951-08-01), Green
patent: 3548319 (1970-12-01), Price
patent: 3609311 (1971-09-01), Wayne
patent: 3761695 (1973-09-01), Eichelberger
patent: 4493077 (1985-01-01), Agrawal et al.
patent: 4596027 (1986-06-01), Bernardson
patent: 4621201 (1986-11-01), Amdahl et al.
patent: 4630270 (1986-12-01), Petit et al.
patent: 4636716 (1987-01-01), Welzhofer

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