In my opinion, here's what it all boils down to (page 11)

“The court agrees with HTC that the disputed limitations are properly understood to exclude any external clock used to generate a signal. 24 Nevertheless, there remains a factual dispute whether HTC’s products contain an on-chip ring oscillator that is self-generating and does not rely on an input control to determine its frequency. While HTC’s expert says that the PLLs generate the clock, TPL’s expert counters that the ring oscillators generate the clock and the PLLs merely buffer or fix the frequency. 25 This is a classic factual question that requires a trial to answer.”

It's go time Jim O, please make it rain! kw