Abstract: A pickup truck tailgate lifting system and apparatus. The system in communication with the tailgate of the truck and located within an interior of the truck bed. The apparatus comprising a motor, a sprocket, a chain, and pins located on opposed ends of the tailgate, wherein the chain engages the tailgate and moves the tailgate from a closed position to an open position. The pins of the apparatus allow for normal operation of the tailgate during non-use of the apparatus.

Abstract: A pickup truck tailgate lifting system and apparatus. The system in communication with the tailgate of the truck and located within an interior of the truck bed. The apparatus comprising a motor, a sprocket, a chain, and pins located on opposed ends of the tailgate, wherein the chain engages the tailgate and moves the tailgate from a closed position to an open position. The pins of the apparatus allow for normal operation of the tailgate during non-use of the apparatus.

Abstract: A method and apparatus are disclosed for optimizing operational performance of a disc drive. The disc drive is provided with an integrated temperature measurement circuit which provides a temperature measurement signal indicative of operational temperature of the disc drive. The integrated temperature measurement circuit is formed as part of an application specific integrated circuit (ASIC) housing additional circuitry used by the disc drive during operation. A parametric configuration circuit, operably coupled to the integrated temperature measurement circuit, identifies selected parameters for use by the disc drive to optimize disc drive performance, the parameters arranged as a plurality of parameter sets corresponding to a plurality of predefined operational temperature ranges.

Abstract: An apparatus and method are disclosed for determining a maximum magnitude of bias current that can be safely applied to a head of a disc drive. The disc drive comprises a head disposed adjacent a rotatable disc having a recording surface on which data are magnetically stored, a preamplifier circuit which selectively applies bias currents to the head, and a head bias current selection circuit, operably coupled to the preamplifier circuit, which first determines the maximum magnitude of bias current that can be applied to the head in relation to a maximum power dissipation rating of the head and voltage measured across the head when at least one initial bias current of selected magnitude is applied to the head. Thereafter, a range of bias currents having different magnitudes less than or equal to the maximum magnitude are selected and evaluated to select an optimum magnitude for subsequent use by the drive.