Absolute duty cycle measurement

Details Absolute duty cycle measurement Absolute duty cycle measurement

2011-03-08

2011-03-08

Schechter, Andrew (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S057000, C702S085000, C702S089000, C327S175000, C327S176000

Reexamination Certificate

active

07904264

ABSTRACT:
A mechanism for measuring the absolute duty cycle of a signal is provided. A non-inverted path from a signal source is selected and various DCC circuit setting indices are cycled through until a divider, coupled to the output of the DCC circuit, fails. A first minimum pulse width at which the divider fails is then determined based on the index value of the DCC circuit at the time of the failure. An inverted path from the signal source is selected and the various DCC circuit setting indices are cycled through again until the divider fails. A second minimum pulse width at which the divider fails is then determined based on the index value of the DCC circuit at the time of this second failure. The duty cycle is then calculated based on a difference of the first and second minimum pulse width values.

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