公开(公告)号：US20160182079A1

公开(公告)日：2016-06-23

申请号：US14573083

申请日：2014-12-17

Applicant: STMICROELECTRONICS, INC.

Inventor： James L. WORLEY ,  Milad ALWARDI

IPC: H03M1/68

CPC classification number: H03M1/68

Abstract: A DAC may include a decoder configured to receive a digital input signal, and first and second sub-DACs coupled in parallel to the decoder, each of the first and second sub-DACs having first and second LSB banks, and an MSB bank coupled between the first and second LSB banks. The decoder may be configured to selectively control the first and second LSB banks, and the MSB bank based upon the digital input signal. The DAC may include an output network coupled to the first and second sub-DACs and configured to generate an analog output signal related to the digital input signal.

Abstract translation: DAC可以包括被配置为接收数字输入信号的解码器，以及并行耦合到解码器的第一和第二子DAC，第一和第二子DAC中的每一个具有第一和第二LSB库，以及耦合在 第一和第二LSB库。 解码器可以被配置为基于数字输入信号选择性地控制第一和第二LSB组和MSB组。 DAC可以包括耦合到第一和第二子DAC的输出网络，并被配置为产生与数字输入信号有关的模拟输出信号。

公开(公告)号：US20200089021A1

公开(公告)日：2020-03-19

申请号：US16694749

申请日：2019-11-25

Applicant: STMicroelectronics, Inc.

Inventor： Mark A. Lysinger ,  Pavan Nallamothu ,  Chih-Hung TAI ,  James L. WORLEY

IPC: G02B27/64 ,  H02P7/025 ,  H02K41/035

Abstract: Various embodiments provide an optical image stabilization circuit including a drive circuit having a power waveform generator and a power waveform conversion circuit. The power waveform generator generates a power waveform. The power waveform conversion circuit converts the power waveform to a power drive signal. An actuator is then driven by the power drive signal to move a lens accordingly and compensate for any movements and vibrations of a housing of the lens.