Patent ID: 8379492
Filing Date: 2013-02-19
Classification: G04G

Abstract:
1. A timepiece, comprising: a casing; a display provided on said casing; a timepiece core unit comprising a timepiece circuitry received in said casing and electrically connected with said display for generating display of current time by said display, wherein said timepiece circuitry comprises a signal generator which is adapted to generate a time signal of a predetermined frequency; and a current processing circuitry, which is electrically extended out of said casing, comprising: a rectifying circuitry, which is adapted for electrically connecting with an external AC power source and arranged to convert said AC into DC of a predetermined magnitude, comprising a fuse, a rectifier, a first and a second capacitor, an inductor, and a resistor electrically connected for rectifying said inputted AC from said external AC power source; an oscillating circuitry, which is electrically connected with said rectifying circuitry and arranged to transform said DC outputted from said rectifying circuitry back into AC, having a predetermined voltage and a frequency which is equal said frequency of said time signal of said signal generator, wherein said oscillating circuitry comprises a transformer having a primary side and a secondary side, a relay circuitry electrically connected to the primary side of said transformer, an Integrated Circuit module, and a power control circuitry, wherein said transformer comprises a primary winding formed at said primary side of said transformer, a secondary winding formed at said secondary side of said transformer, and a feedback winding also formed on said primary side of said transformer and is electrically connected with said power control circuitry of said oscillating circuitry, wherein said power control circuitry comprises a diode and a capacitor, wherein said diode has an anode electrically connected with said feedback winding of said transformer, and a cathode electrically connected with said capacitor of said power control circuitry and said Integrated Circuit module for providing a controlled power supply to said Integrated Circuit module; an output circuitry, which is electrically connected with said oscillating circuitry and arranged to rectify said AC output from said oscillating circuitry into a DC pulses output, having a predetermined voltage, wherein said secondary winding formed at said secondary side of said transformer is electrically connected to said output circuitry, wherein said DC output from said output circuitry is electrically transmitted to said timepiece circuitry for triggering an operation thereof so as to allow said signal generator to generate accurate time signal to display said current time by said display; and a feedback circuitry electrically connecting between said output circuitry and said oscillating circuitry for adjusting deviation of said DC output from said output circuitry in order to ensure the consistency of the AC provided to the timepiece circuitry, so as to ensure consistent performance of time displaying function of said timepiece core unit.