Host of physiological detection system and physiological detection device with high accuracy

A host of a physiological detection system, the host comprising a clock generator and configured to

• receive a physiological data series sent from a physiological detection device, wherein the physiological data series is sent according to a local oscillation frequency of the physiological detection device,
• calculate a ratio between a receiving data parameter associated with the received physiological data series and a reference data parameter associated with a host oscillation frequency provided by the clock generator of the host so as to determine a correction parameter,
• process the received physiological data series according to the correction parameter, and
• calculate a physiological value according to the processed physiological data series to improve accuracy of calculating the physiological value when the local oscillation frequency of the physiological detection device is different from the host oscillation frequency.

A physiological detection device, the physiological detection device configured to

• receive a correction parameter from a host, the host comprising a clock generator for providing a host oscillation frequency,
• send a physiological data series according to a local oscillation frequency of the physiological detection device, and
• adjust the local oscillation frequency according to the correction parameter when the local oscillation frequency of the physiological detection device is different from the host oscillation frequency,
• wherein the correction parameter is determined by the host according to a ratio between a receiving data parameter, which is associated with the physiological data series received from the physiological detection device, and a reference data parameter, which is associated with the host oscillation frequency provided by the clock generator of the host.