This is what i've found after some googling..
Newly-Developed, Electronically-Controlled 4-Speed Automatic Transmission
(Prosmatec Transmission with Lockup Mechanism)
• The new transmission features an active lockup mechanism that engages even at low speeds, and achieves top-of-its-class fuel economy through precision control that is tuned to the vehicle's driving conditions and throttle opening.
• This is the first time Honda has incorporated its proprietary direct control system used in Accords and other models in a minicar. Linear solenoids provide precision control of the clutch pressure, ensuring a smoother gear shift feel.
•
The Prosmatec (PROgressive, Shift schedule MAnagement TEChnology) transmission provides a smooth ride when ascending or descending hills. The system evaluates driving conditions based on the throttle opening and acceleration, and optimally controls the timing of gear shifts.
I am not sure that the one we have here actually have any Lockup Mechanism.
http://world.honda.com/news/2003/4030904_1.html
I think the honda dealers over here might have some documentation of all the nitty-gritty details about the working of the system. The might also know what exactly is available in local assembled hondas.