Abstract: A clock resynchronizer includes a write circuit and a read circuit. The write circuit stores input data in accordance with a first clock associated with the input data. The read circuit outputs data to be output out of the data stored in the write circuit, in accordance with a second clock. The read circuit also outputs a signal acquisition permitting signal indicating that the data to be output is valid. The read circuit outputs no signal acquisition permitting signal when the data to be output is not output.

Abstract: An object of the present invention is to provide a living body measuring device which, once the personal information having been set therein, executes an arithmetic operation simply by making a measurement without requiring a user to remember his/her personal memory number. The living body measuring device of the present invention stores the measured body weight value and/or bioelectrical impedance value as well as the personal body information set in the initial stage, compares the measured values with those stored values, and determines a current subject who is being measured by considering the most proximal values to be the data associated with the measured subject, thereby calculating a body-related index automatically. Especially, if both of the bioelectrical impedance and the body weight are used, then the determination may be more accurate.