公开(公告)号：US20140072077A1

公开(公告)日：2014-03-13

申请号：US14022136

申请日：2013-09-09

Applicant: Agency for Science, Technology and Research

Inventor： San Jeow CHENG ,  Yuan GAO ,  Chun Huat HENG

IPC: H04L27/12 ,  H04L27/20

CPC classification number: H04L27/12 ,  H04L27/20

Abstract: According to embodiments of the present invention, a transmitter is provided. The transmitter includes a frequency shift keying (FSK) circuit, and a phase shift keying (PSK) circuit coupled in series to the FSK circuit, wherein the FSK circuit is configured, in a first mode of operation, to provide a FSK modulated signal to the PSK circuit, and, in a second mode of operation, to provide a fixed frequency signal to the PSK circuit, and wherein the PSK circuit is configured, in the first mode of operation, to transmit the FSK modulated signal, and, in the second mode of operation, to provide a PSK modulated signal based on the fixed frequency signal received from the FSK circuit.

Abstract translation: 根据本发明的实施例，提供一种发射器。 发射机包括频移键控（FSK）电路和与FSK电路串联耦合的相移键控（PSK）电路，其中FSK电路在第一操作模式下被配置为提供FSK调制信号 PSK电路，并且在第二操作模式中，向PSK电路提供固定频率信号，并且其中PSK电路在第一工作模式下配置为发送FSK调制信号，并且在 第二种操作模式，提供基于从FSK电路接收的固定频率信号的PSK调制信号。