Multi-State Indicator
AssigneeMStar Semiconductor, Inc.
InventorChun Wen Yeh
Life of this patent
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Abstract
A multi-state indicator comprises a voltage generator, for generating M voltages, with M being an integer larger than 3; and a multi-state detector, coupled to the voltage generator, for receiving M voltages, having a voltage input end for receiving an input voltage to generate an indication signal whereby the indication signal is capable of indicating the input voltage with reference to the M voltages. Unlike the prior art, a multi-state detector having level shifters according to the present invention alleviates problems of static currents and over-large areas for circuits implementing typical differential comparators.
Claims17
A three-state indicator, comprising:
- a voltage generator, for generating a first voltage, a second voltage, and a third voltage;
- and
- a three-state detector having a voltage input end coupling to the voltage generator for receiving the first voltage, the second voltage, and the third voltage, wherein the voltage input end selectively receives the first voltage, the second voltage, or the third voltage to generate an indication signal indicating an input voltage at the voltage input end;
- wherein the input voltage is the first voltage, the second voltage, or the third voltage.
A multi-state indicator, comprising:
- a voltage generator, for generating M voltages, with M being an integer larger than three;
- and
- a multi-state detector, coupled to the voltage generator, for receiving M voltages, having a voltage input end for receiving an input voltage to generate an indication signal whereby the indication signal is capable of indicating the input voltage with reference to the M voltages.
Dependencies are inferred from the claim text.