公开(公告)号：US08619199B1

公开(公告)日：2013-12-31

申请号：US13425914

申请日：2012-03-21

申请人： Jin Zhang ,  Xiaolin Che ,  Kok-Wui Cheong

发明人： Jin Zhang ,  Xiaolin Che ,  Kok-Wui Cheong

IPC分类号： H04N5/445

CPC分类号： H04N5/52

摘要： A demodulator includes an analog to digital converter configured to receive a television signal from a tuner and output a corresponding digitized television signal, where the television signal comprises a digital television signal or an analog television signal. A first gain module is configured to generate, based on the digitized television signal, a first feedback for adjusting the television signal provided to the analog to digital converter by the tuner, where the first feedback is applied to the television signal regardless of whether the television signal is a digital television signal or an analog television signal. A second gain module is configured to generate second feedback for further adjusting the television signal provided to the analog to digital converter by the tuner, where the second feedback is provided to further adjust the television signal only when the television signal is an analog television signal.

摘要翻译： 解调器包括模数转换器，其被配置为从调谐器接收电视信号并输出​​相应的数字化电视信号，其中电视信号包括数字电视信号或模拟电视信号。 第一增益模块被配置为基于数字化电视信号产生用于调整由调谐器提供给模数转换器的电视信号的第一反馈，其中第一反馈被应用于电视信号，而不管电视 信号是数字电视信号或模拟电视信号。 第二增益模块被配置为产生第二反馈以进一步调整由调谐器提供给模数转换器的电视信号，其中提供第二反馈以仅在电视信号是模拟电视信号时进一步调整电视信号。