专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09203454B2 FM receiver noise reduction 有权
标题翻译： FM接收机降噪
公开(公告)号：US09203454B2
公开(公告)日：2015-12-01
申请号：US13510571
申请日：2010-11-16
申请人： Jacob Sharpe , Andrei Popescu
发明人： Jacob Sharpe , Andrei Popescu
IPC分类号： H04B1/16 , H04B1/3805 , H04B15/06
CPC分类号： H04B1/1676 , H04B1/3805 , H04B15/06
摘要： Apparatus to reduce noise in a stereo FM broadcast received via an antenna, the apparatus comprising: a frequency translator configured to translate the received stereo FM broadcast to an intermediate carrier frequency, a demodulation unit configured to demodulate the translated FM signal so as to form left-plus-right and left-minus-right AM signals, a filter configured to form a filtered signal by filtering one of the AM signals, so as to suppress a sub-band of that signal containing unwanted tones, a summing unit for summing the filtered signal and the other of the left-plus-right and left-minus-right signals to produce a stereo audio signal.
摘要翻译：一种用于减少通过天线接收的立体声FM广播中的噪声的装置，该装置包括：频率转换器，被配置为将所接收的立体声FM广播转换为中间载波频率;解调单元，被配置为解调经翻译的FM信号以形成左 - 左右右AM信号，滤波器，被配置为通过对AM信号之一进行滤波来形成滤波信号，以便抑制包含不需要的音调的信号的子带，求和单元滤波后的信号和左右右右信号中的另一个产生立体声音频信号。

2. 发明申请

US20120224699A1 FM RECEIVER NOISE REDUCTION 有权
标题翻译： FM接收机噪声减少
公开(公告)号：US20120224699A1
公开(公告)日：2012-09-06
申请号：US13510571
申请日：2010-11-16
申请人： Jacob Sharpe , Andrei Popescu
发明人： Jacob Sharpe , Andrei Popescu
IPC分类号： H04H40/72
CPC分类号： H04B1/1676 , H04B1/3805 , H04B15/06
摘要： Apparatus to reduce noise in a stereo FM broadcast received via an antenna, the apparatus comprising: a frequency translator configured to translate the received stereo FM broadcast to an intermediate carrier frequency, a demodulation unit configured to demodulate the translated FM signal so as to form left-plus-right and left-minus-right AM signals, a filter configured to form a filtered signal by filtering one of the AM signals, so as to suppress a sub-band of that signal containing unwanted tones, a summing unit for summing the filtered signal and the other of the left-plus-right and left-minus-right signals to produce a stereo audio signal.
摘要翻译：一种用于减少通过天线接收的立体声FM广播中的噪声的装置，该装置包括：频率转换器，被配置为将所接收的立体声FM广播转换为中间载波频率;解调单元，被配置为解调经翻译的FM信号以形成左 - 左右右AM信号，滤波器，被配置为通过对AM信号之一进行滤波来形成滤波信号，以便抑制包含不需要的音调的信号的子带，求和单元滤波后的信号和左右右右信号中的另一个产生立体声音频信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式