Leydig, Voit & Mayer, Ltd.
Correction circuit and real-time clock circuit
The present invention provides a correction circuit. The correction circuit includes a frequency dividing circuit, a frequency dividing coefficient operation circuit, a built-in temperature collection circuit, and a power-on and power-off detection circuit. The built-in temperature collection circuit is configured to collect a temperature of the chip; the power-on and power-off detection circuit is configured to detect power-on and power-off of the chip; the frequency dividing coefficient operation circuit is configured to calculate, according to the temperature of the chip collected by the built-in temperature collection circuit when the power-on and power-off detection circuit detects that the chip is powered off, a frequency dividing coefficient, and output the frequency dividing coefficient to the frequency dividing circuit; and the frequency dividing circuit is configured to provide, according to the frequency dividing coefficient output by the frequency dividing coefficient operation circuit, a timing pulse for a real-time clock.
Huawei Technologies Co., Ltd.
G G G H H
G06F G04G G06F H03L H03K
inventional inventional additional inventional inventional
Jinxiu Ding Shubao
Liu Li Guo