Patent ID: 6266203
Filing Date: 2001-07-24
Classification: G11B

Abstract:
A method for optimizing operational performance of a disc drive, comprising steps of:(a) providing an integrated temperature measurement circuit which provides a temperature measurement signal indicative of operational temperature of the disc drive and is formed as part of an integrated circuit which houses additional circuitry used by the disc drive during operation, wherein the integrated temperature measurement circuit comprises first and second transistors each having a base, a collector and an emitter, wherein first and second collector to emitter currents are respectively passed through the first and second transistors with the first and second currents having nominally the same magnitude, and wherein the temperature measurement signal is generated in relation to a difference between a base to emitter voltage of the first transistor and a base to emitter voltage of the second transistor; and(b) adjusting at least one variably selectable parameter of the disc drive affecting the operational performance of the disc drive in response to the temperature measurement signal from the integrated temperature measurement circuit.