1
William J Barbiaux, Timothy D McCarthy, Steven D Bromley, Gary W Milliorn: Vehicle monitoring arrangement and system. Motorola, Robert J Crawford, February 14, 1989: US04804937 (254 worldwide citation)

A vehicle monitoring system is described having an arrangement installed within a vehicle, wherein the system includes an external data terminal for communicating information to a remotely located base station. The arrangement includes a plurality of communication modules, each being capable of comm ...


2
William J Barbiaux: Meter overdrive protection circuit. Motorola, Steven G Parmelee, December 16, 1986: US04629981 (2 worldwide citation)

A meter overdrive protection circuit is provided using a variable duty cycle drive pulse. Such meters usually comprise speedometers and tachometers used in highway vehicles such as trucks. A programmable pulse generator is utilized to provide a series of pulses of a selected width depending on the t ...


3
William J Barbiaux, Eugene L Wineinger: Meter drive inhibit circuit. Motorola, Steven G Parmelee, July 14, 1987: US04680541 (1 worldwide citation)

A meter drive inhibit circuit is provided whereby an erroneous jump of the meter pointer upon system power-up or subsequent microcomputer reset operation is inhibited. A pulse generator is utilized to produce output pulses relating to the rate of rotation of a drive shaft in a typical tachometer app ...