Abstract: Sequential-playback objects (SPOs) such as audio messages, voicemail messages, video segments and the like are controlled in a centralized fashion in a computer-based system. The user is able to select SPOs, preferably using a pointer device such as a mouse. A single tool bar is displayed and used for controlling each of the selected SPOs so that there is no need to display two tool bars on the screen for controlling two different SPOs. Information relating to the status and characteristics of the SPOs are passed to the tool bar software so that the tool bar automatically provides the appropriate command execution for the particular SPO. Thus, the same tool bar will playback a video message or an audio message. By providing a single tool bar, screen clutter is reduced and, command execution is performed rapidly and computer resources are conserved.

Abstract: A system includes a base station computer with memory for storing a data file representative of vehicle license plate numbers and coded violation information associated with the numbers. A plurality of stand-alone computers are compatible with the base station computer and have separate memory capacity into which the data file may be transferred. Each stand-alone computer is equipped with voice-recognition circuitry for receipt and recognition of voiced communications from an enforcement officer via a hand-held unit. The voiced communication relates to a license plate number observed by the officer on duty. Upon receipt and recognition of a voiced signal by the respective stand-alone computer, the stand-alone computer searches the data file for unpaid violations by the observed number, and if any are detected, the officer is informed so that appropriate enforcement steps may be taken.