公开(公告)号：US20140125503A1

公开(公告)日：2014-05-08

申请号：US14135156

申请日：2013-12-19

Applicant: STMicroelectronics International, N.V.

Inventor： MunishKumar MANGAL ,  Ranajay MALLIK

IPC: H03M1/30

CPC classification number: H03M1/303 ,  H03M1/305 ,  H03M1/306 ,  H04L27/22

Abstract: A system and method for decoding quadrature signals includes a quadrature signal generator, a quadrature signal decoder, a key matrix and a driver. The quadrature signal generator generates quadrature signals on rotation. The quadrature signal decoder is configured to convert the quadrature signals into non-overlapping signals. The key matrix is configured to receive the non-overlapping signals. The driver is configured to scan the key matrix to decode the non-overlapping signals to generate an event update corresponding to a direction of rotation of the quadrature signal generator.

Abstract translation: 用于解码正交信号的系统和方法包括正交信号发生器，正交信号解码器，密钥矩阵和驱动器。 正交信号发生器在旋转时产生正交信号。 正交信号解码器被配置为将正交信号转换成非重叠信号。 密钥矩阵被配置为接收不重叠的信号。 驱动器被配置为扫描键矩阵以解码不重叠的信号以产生对应于正交信号发生器的旋转方向的事件更新。