Abstract: A form document editor having a form descriptor table defining editable graphics and text areas with a page comprised of a background bitmap image of a background of the page, a graphics bitmap image of graphics appearing in a graphics area of the page, and a text buffer of text appearing in a text area of the page. The editor includes a graphics editor operating on the graphics bitmap image and a text editor for editing the text in the text buffer. The background and graphics bitmap images and text buffer are combined into a composite page image for display and storage of the form document. A document is retrieved from storage for editing is provided to the editor as a background bitmap. An area of a page may contain autofill data and the editor includes an intelligent autofill data import mechanism for inserting user provided data into the autofill data upon detecting a user data import indicator, with the user data replacing the indicator in the autofill data.

Abstract: Apparatus is provided for determining the frequency of unknown periodic input signals and primarily generally sinusoidal signals which may be accompanied by very substantial noise. More particularly, the system for determining the frequency of unknown periodic input signals accompanied by substantial noise is adapted to a unique traffic radar or doppler radar system. The apparatus includes a phase locked loop in which the incoming signal accompanied by noise is compared with the output from a voltage controlled oscillator to generate a synthetic signal which is substantially free of noise and is well adapted for counting, measuring and display circuitry to give a direct indication of the input signal frequency or a parameter directly related to that input signal frequency. Specifically in doppler radar systems the direct readout is in "miles per hour", a direct function of doppler frequency.

Abstract: Apparatus is provided for determining the frequency of unknown periodic input signals and primarily generally sinusoidal signals which may be accompanied by substantial noise. More particularly a unique traffic radar or doppler radar is provided employing such frequency measuring apparatus. The apparatus includes a phase locked loop in which a frequency multiplier effect is produced and in which a frequency 12 times the periodic input signal being subjected to measurement is employed for taking two independent samples of the input signal and providing a synthetic representation of that signal. The two samples are centered about quadrature time references and are preferably conterminous. This signal can be measured and utilized for speed measuring purposes and other purposes where the accurate measurement of a periodic signal accompanied by noise is desired.