Patent ID: 7771361

Claim:
A blood pressure measuring apparatus comprising: a plurality of blood pressure measuring units disposed on a substrate; a plurality of optical sensors disposed on the substrate, each optical sensor corresponding to a respective one of the plurality of blood pressure measuring units; and a control unit that measures blood pressure by analyzing signals received from at least one of the plurality of optical sensors and at least one of the plurality of blood pressure measuring units, wherein each of the plurality of blood pressure measuring units comprises a plurality of blood pressure sensors, wherein the plurality of the optical sensors measure optical signals by emitting and receiving light, wherein the plurality of blood pressure sensors of the blood pressure measuring unit of the plurality of blood pressure measuring units that corresponds to an optical sensor of the plurality of optical sensors showing a maximum variation of the measured optical signal each measure an artery pulse according to blood pressure, and wherein the blood pressure sensor of the plurality of blood pressure sensors of the blood pressure measuring unit used to measure artery pulses that shows a maximum artery pulse is determined, and the determined blood pressure sensor is used to measure blood pressure.