Patent ID: 6882189
Filing Date: 2005-04-19
Classification: H03K

Abstract:
1. An apparatus comprising: means for counting including a first type logic gate and a plurality of bistable devices, an output of the logic gate being coupled to an input of a first of the bistable devices; means for multiplexing including (i) a control port configured to receive a control signal, (ii) N number of inputs, and (iii) at least one output coupled to a first input of the first type logic gate; and N number of second type logic gates, each having at least two inputs and an output; wherein one of the inputs of a first of the second type logic gates is coupled to (i) an output of the first bistable device and (ii) a second input of the first logic gate; wherein the outputs of the second type logic gates are respectively coupled to the inputs of the means for multiplexing; wherein the outputs of the first through (N−1)th second type logic gates are respectively coupled to one of the inputs of the second through Nth second type logic gates; and wherein the other of the inputs of the second type logic gates are respectively coupled to the outputs of the other bistable devices.