Patent ID: 8542284
Filing Date: 2013-09-24
Classification: G02B,H04N

Abstract:
1. A gain-adjusting apparatus for an optical image stabilizer (OIS), the gain-adjusting apparatus comprising: an integrator, for receiving a gyro signal data and integrating the gyro signal data to generate an integral data; a first register coupled to the integrator, for storing the gyro signal data and the integral data, wherein the first register further stores a predetermined gain value between an upper gain threshold and a lower gain threshold based on the gyro signal data and the integral data; a second register coupled to the integrator, for storing a gain value; and a control unit coupled to the first register and the second register respectively, for detecting whether the gyro signal data is either greater than an upper gyro threshold or less than a lower gyro threshold and decreasing the gain value between the upper gain threshold and the lower gain threshold when the gyro signal data is either greater than an upper gyro threshold or less than a lower gyro threshold.