Patent ID: 7333832

Claim:
A cellular phone capable of measuring temperature including: a power supply IC for supplying power, a CPU including a plurality of pins, wherein a first GPO pin of the CPU is coupled to an enable pin of the power supply IC, an IR temperature measurement means including a plurality of pins each coupled to a corresponding one of the pins of the CPU and a power supply pin for receiving power from the power supply IC, wherein a data pin and a clock pin of the IR temperature measuring means are coupled to a data pin and a clock pin of the CPU respectively, such that in an unused state with no temperature being measured, power supply from the power supply IC to the IR temperature measurement means is cut, and an active pin of the IR temperature measurement means is coupled to a second GPO pin of the CPU for controlling the start or the stop of the IR temperature means, and an IR sensor coupled to the IR temperature measurement means for sensing temperature, wherein in response to receiving a temperature measurement signal from the IR temperature measurement means, the CPU enables the first GPO pin to be at a low level so that the power supply IC is able to supply power to the IR temperature measurement means; and enables the second GPO pin to be at a low level after a predetermined period of time has lapsed so that the IR temperature measurement means is able to send measured temperature data to the CPU via the data pins thereof.