Here is what TPL argued. Please pay special attention to the bold.

Moreover, Plaintiffs’ proposed limitation of “variable based on the temperature, voltage, and process parameters in the environment” and “non-controllable” are contradictory, because temperature, voltage and process are all controllable to one degree or another, and therefore the oscillator is controllable via these parameters. According to the ’336 specification, “the ring oscillator frequency is determined by the parameters of temperature, voltage, and process.” Id., 16:59-60. It makes no sense that the oscillator frequency can be “determined by” temperature, voltage and process,” while simultaneously being uncontrollable. Indeed, claim 13 of the ’336 patent calls for “clocking said central processing unit at a clock rate,” which would be impossible if the oscillator were uncontrollable. For all of these reasons, Plaintiffs proposal should be rejected.

That is it, ladies and gentlemen. According to the specification of the 5,809,336 MMP patent that Patriot Scientific Corporation co-owns, it states that the ring oscillator frequency is determined by the parameters of temperature, voltage, and process.

It states it in the patent itself. TPL argued the very point that the ring oscillator frequency is determined by the parameters of temperature, voltage, and process.

It couldn't be more explicit.