Binary data identification circuit

Details Binary data identification circuit Binary data identification circuit

1987-02-27

1988-09-20

Harkcom, Gary V.

Boots, shoes, and leggings

364748, 36471504, 36471511, G06F 738

Patent

active

047730331

ABSTRACT:
A binary data identification circuit including first and second potential terminals set to first and second logical potential levels, a series circuit including first to (n-1)th transfer gates whose conduction states are controlled responsive to 1st to (n-1)th bit signals of an input operand containing first to nth bit signals, one end of the series circuit being connected to the first potential terminal, nth to (2n-2)th transfer gates which are controlled, responsive to the first to (n-1)th bit signals, so as to have opposite conduction states with respect to those of the first to (n-1)th transfer gates, the nth to (2n-2)th transfer gates being connected at their source to the second potential terminal and at their drain to the drains of the first to (n-1)th transfer gates; and first to nth logic gates whose first input terminals receive the first to nth bit signals and whose second terminals are connected to the first potential terminal and to the drains of the first to (n-1)th transfer gates, the first to nth logic gates generating effective bit data when the first logical level signal is applied to the first and second input terminals thereof.

REFERENCES:
patent: 3908084 (1975-09-01), Wiley
patent: 4161784 (1979-07-01), Cushing
patent: 4533992 (1985-08-01), Magar et al.
patent: 4583197 (1986-04-01), Chappell et al.
patent: 4665538 (1987-05-01), Machida
patent: 4713749 (1987-12-01), Magar et al.
"Circuit to Determine Number of Leading Zeros in a Binary String", IBM Technical Disclosure Bulletin, vol. 28, #2, pp. 854-855, Jul. 1985.
Oberman, "Digital Circuits for Binary Arithmetic," Chapter 7, Section 2, pp. 277-281.

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