To quote from an early 777 FCOM:
In secondary and direct modes, the elevator variable feel system provides two feel
force levels instead of a continuous variation with airspeed. The force levels
change with flap position. With the flaps up, the feel forces provide maneuver
force levels that discourage overcontrol in the pitch axis at high speeds. With flaps
extended (flaps 1 or greater), the feel forces decrease to provide force levels
appropriate for approach and landing.
In the secondary and direct modes, both the primary pitch trim switches and the
alternate pitch trim levers move the stabilizer directly. There is no trim reference
speed.
And 767:
Two elevator feel systems provide artificial feel forces to the pilots control
columns. Mechanical springs provide feel following a loss of the left and center
hydraulic systems.
The ELEV FEEL COMPUTER (may be mechanical?) is shown receiving pitot pressure.