A system and method capturing, in a computer system, data relating to a note-taking session, the session consisting of handwritten annotations made by a user by way of a writing implement on a plurality of pages. This scheme may be used to implement a photocell in which image data from the photodetector may be collected during readout. Using the methods and systems described herein it is simpler for a provider to evaluate vascular imaging data, which is typically distorted due to cardiac vessel-catheter motion while the image was acquired. As a result, time-varying fluctuations in the voltage of the loop filter resulting from a structure in which the input terminal for evaluating the oscillation characteristics of the voltage controlled oscillator is connected to the loop filter via a switch and time-varying fluctuations in the output frequency of the PLL circuit are effectively suppressed. The mentioned preferred embodiment of this invention submits the kerf to coarse sanding, fine sanding, and burnishing with one pass of the blade.