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November 1973 (vol. 22 no. 11)
pp. 1021-1024
E.E. Swartzlander, Technology Service Corporation
Multiple-input circuits that count the number of their inputs that are in a given state (normally logic ONE) are called parallel counters. In this paper three separate types of counters are described, analyzed, and compared. The first counter consists of a network of full adders. The second counter uses a combination of full adders and fast adders (that may be realized with READ-ONLY memories), while the third type of counter uses quasi-digital (i.e., analog current summing) techniques to generate an analog signal proportional to the count which is then digitized.
Index Terms:
Associative processors, carry-shower counters, computer arithmetic units, digital counters, full-adder counters, multipliers, parallel counters, quasi-digital processing, READ-ONLY memory fast adders, response counters.
E.E. Swartzlander, "Parallel Counters," IEEE Transactions on Computers, vol. 22, no. 11, pp. 1021-1024, Nov. 1973, doi:10.1109/T-C.1973.223639
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