Browse Prior Art Database

Binary Shift Counter

IP.com Disclosure Number: IPCOM000040968D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Lewis, SD [+details]

Abstract

An LSSD logic implementation is used to count to a few pre-determined values with a minimum amount of circuitry. This counter can be both incremented and decremented as long as the count remains between the initial value and a maximum value. Incrementing and decrementing involve a simple shifting operation and, hence, a minimum amount of logic. Particular counts can be identified by 'AND'ing the desired bit pattern together.