Well it'll take TWO pages, sorry...
This isn't a "concept". It's CCPM or it's NOT. There is no "evolution" either. CCPM is nothing NEW, the date on this book is 1987!! It was understood at THAT time what CCPM was and was NOT.
Lets break down some of the pictured paragraph.
"All model Helicopters incorporate a device known as a swashplate. This enables the various cyclic control inputs to be transmitted from the stationary fuselage to the revolving rotor."
Swashplate, cyclic controls. Pertinant information I would say.
"In many designs, the collective pitch variation is effected by moving the swashplate up and down."
In MANY designs, but as you guys have pointed out, not ALL.. Good.
"Some of the more expensive radio systems allow the linkages of this type of control to be considerably simplified by mixing the collective pitch input into three servos"
Radio systems,
THIS type of control (meaning moving swashplate), simplified by mixing into
THREE servos. Cool! I gotta try this!!
"By moving differentially or collectively, these servos produce all the necessary swashplate movements for both cyclic and collective pitch inputs."
Becoming clearer?
"It should be noted, however, that this system will not work with all moving swashplate designs. Some of these require only the lateral cyclic and collective inputs to be mixed, with the fore/aft cyclic input being kept separate. One example of this is the Heim system already mentioned."
This system (CCPM) will not work with ALL moving swashplate designs....Hmmm. So a MOVING swashplate does NOT automatically denote CCPM.
So the gist of this paragraph is thus, 3 servos mixed electronically in "the more expensive radio systems" is CCPM. The mixing of the servos in the RADIO makes it CCPM!! The fact that the swash moves up and down does NOT mean it's CCPM.
He even specifies that if only TWO functions are mixed, it's STILL not CCPM!!
What I believe is happening in this hobby, as it concerns this topic, because the controlling systems of a model helicopter is complicated, difficult to pick up quickly, some are taking a short cut to understanding, putting the blanket of CCPM over everything because it's now what a beginner learns in his first helicopter with the proliferation of the cheap but decent flying models now on the market.
The TRUTH is otherwise. Trying to "keep up with the Times" does not make terminology correct. CCPM is an ELECTRONIC mixing function IN the radio. Period. Always has been, always will be.