Patent ID: 7839090
Filing Date: 2010-11-23
Classification: G11B

Abstract:
1. A circuit for indicating status of a component of a computer system, the circuit comprising: a first indicator comprising a first positive end and a first negative end; a second indicator comprising a second positive end connected with the first negative end, and a second negative end connected with the first positive end; a first control circuit comprising a first input terminal and a first output terminal, the first control circuit configured in such a manner that: the first output terminal connected to the first positive end, the first input terminal connected to a port which is capable of outputting different signals corresponding to different statuses of the component; and a second control circuit comprising a second input terminal and a second output terminal; the second control circuit configured in such a manner that: wherein the second output terminal is connected to the first negative end of the first indicator, the second input terminal is connected to the port.