公开(公告)号：US06625434B1

公开(公告)日：2003-09-23

申请号：US09408977

申请日：1999-09-29

Applicant: Kazuhiro Arimitsu ,  Masaru Hirata

Inventor： Kazuhiro Arimitsu ,  Masaru Hirata

IPC: H04B106

CPC classification number: H03J7/04 ,  H04B1/707 ,  H04B2201/70701

Abstract: An AFC process is performed even when a mobile station is in a speech communication mode in which a data channel is being received by a finger receiver. In the speech communication mode, a frequency error measuring unit measures a frequency error of the data channel. An AFC circuit performs an AFC process for controlling the frequency of a TCXO, i.e., a reference oscillator, using the measured frequency error. No reception failure occurs even when the TCXO suffers frequency fluctuations in the speech communication mode.

Abstract translation: 即使当移动台处于手指接收机正在接收数据信道的语音通信模式中时也执行AFC处理。 在语音通信模式中，频率误差测量单元测量数据信道的频率误差。 AFC电路使用测量的频率误差来执行用于控制TCXO（即，参考振荡器）的频率的AFC处理。 即使TCXO在语音通信模式中遭受频率波动，也不会发生接收故障。