Low-power consumption precise timer and its precision correcting equipment, system and method

Abstract

The present invention is one electronic timer and time correcting equipment, system and method. The electronic timer includes simple and low-power consumption error correcting circuit for raising time accuracy. The error correcting data are calculated by outer equipment based on the data the electronic timer produces, the stored data and outer standard time data, and is stored in the memory of the electronic timer. Thus, the microprocessor of the electronic timer can correct time without needing great amount of calculation.

Description

technical field [0001] The present invention relates to a timing device and a device and method for correcting its accuracy, in particular to a low power consumption precise electronic timing device and its timing accuracy can be corrected and updated by applying the time signal of GPS, SPS or radio system equipment and methods. Background technique [0002] Nowadays, electronic timekeeping products such as digital watches are widely used due to reasons such as accurate timekeeping and low maintenance costs. Electronic timing products usually include an electronic oscillator and a controller. The oscillator generally contains a frequency of about 32.768kHz (2 15 kHz) ~ 4.194304MHz (2 22 MHz) quartz oscillators, the controller usually includes a microprocessor to count the number of oscillation pulses and convert them into time for display. These electronic timekeeping devices are generally considered to be more accurate, but in fact they deviate significantly from the sta...

AI Technical Summary

Problems solved by technology

[0008] The prior art directly adopts the signal of GPS, SPS or radio system to correct or correct the time, so it is inevitable to set up a signal receiver in the timing device, so the timing device is expensive and bulky, which is even more inapplicable. For watches and similar timekeeping products

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