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1. 发明申请

WO2017058639A1 INTERPOLATION IN NON-UNIFORM SAMPLING ANALOG-TO-DIGITAL CONVERTERS 审中-公开
标题翻译：非均匀采样模拟数字转换器中的插值
公开(公告)号：WO2017058639A1
公开(公告)日：2017-04-06
申请号：PCT/US2016/053197
申请日：2016-09-22
申请人： GOOGLE INC.
发明人： RICH, Mark , MACK, Michael, Peter , KACZYNSKI, Brian
IPC分类号： H03M1/12 , H03M1/06
CPC分类号： H03M1/0639 , H03M1/1265
摘要： A radio frequency receiver includes an antenna that receives an analog signal comprising modulated encoded information. An analog signal generator generates a supplemental analog signal characterized by an amplitude sufficient to trigger a voltage threshold in a non-uniform sampling analog-to-digital converter. A mixer mixes the received signal and the supplemental signal. A non-uniform sampling analog-to-digital converter receives the mixed signal and produces a series of non-uniformly sampled {amplitude, time} tuples representing the mixed signal. The converter removes the supplemental signal from the series of {amplitude, time} tuples to produce a series of non-uniformly sampled {amplitude, time} tuples representative of the mixed signal without the supplemental signal. The converter interpolates the series of non-uniformly sampled {amplitude, time} tuples to form a series of samples periodic in time representative of the analog input signal. A digital signal processor (DSP) demodulates the interpolated series and decode the digital information from the demodulated series.
摘要翻译：射频接收机包括接收包括调制编码信息的模拟信号的天线。模拟信号发生器产生补充模拟信号，其特征在于足以在非均匀采样模数转换器中触发电压阈值的幅度。混频器将接收的信号和补充信号混合。非均匀采样模数转换器接收混合信号并产生表示混合信号的一系列不均匀采样的{振幅，时间}元组。该转换器从一系列{振幅，时间}元组中去除补充信号，以产生代表混合信号的一系列不均匀采样的{幅度，时间}元组，而没有补充信号。转换器内插一系列不均匀采样的{振幅，时间}元组，以形成代表模拟输入信号的时间周期的一系列采样。数字信号处理器（DSP）对内插序列进行解调，并从解调的系列解码数字信息。

2. 发明申请

WO2017053635A1 INCREASED SAMPLING IN NON-UNIFORM SAMPLING ANALOG-TO-DIGITAL CONVERTERS 审中-公开
标题翻译：非均匀采样模拟数字转换器的增量采样
公开(公告)号：WO2017053635A1
公开(公告)日：2017-03-30
申请号：PCT/US2016/053207
申请日：2016-09-22
申请人： GOOGLE INC.
发明人： RICH, Mark , MACK, Michael, Peter , KACZYNSKI, Brian
IPC分类号： H03M1/12 , H03M1/06
CPC分类号： H03M1/0639 , H03M1/1265
摘要： Analog-to-digital conversion is performed on a received an analog input signal. A supplemental analog signal is generated. The supplemental analog signal is characterized by an amplitude sufficient to trigger each voltage threshold in a non-uniform sampling analog- to-digital converter. The received analog input signal and the generated supplemental signal are mixed. The non-uniform sampling analog-to-digital converter converts the mixed analog signal, producing a series of {amplitude, time} tuples representative of the mixed signal. The series of {amplitude, time} tuples are interpolated to form a series of samples periodic in time representative of the mixed signal. The supplemental signal is removed from the interpolated series.
摘要翻译：对接收到的模拟输入信号进行模数转换。产生补充的模拟信号。补充模拟信号的特征在于足以在非均匀采样模数转换器中触发每个电压阈值的幅度。接收的模拟输入信号和产生的补充信号混合。非均匀采样模数转换器转换混合模拟信号，产生代表混合信号的一系列{幅度，时间}元组。将{幅度，时间}元组的一系列内插以形成表示混合信号的时间周期的一系列样本。补充信号从插值序列中移除。

3. 发明申请

WO2016127010A1 RADIO RECEIVER WITH LOCAL OSCILLATOR MODULATION 审中-公开
标题翻译：具有本地振荡器调制的无线接收器
公开(公告)号：WO2016127010A1
公开(公告)日：2016-08-11
申请号：PCT/US2016/016667
申请日：2016-02-04
申请人： GOOGLE INC.
发明人： RICH, Mark , KOLODZY, Paul
IPC分类号： H04B1/10 , H04B15/00
CPC分类号： H04B1/16 , H04B1/109 , H04B7/04 , H04B15/00 , H04L27/22 , H04L27/26
摘要： An antenna subsystem receives an analog desired signal, noise, and interference via a communication channel. The desired signal includes modulated encoded digital information. A local oscillator (LO) modulation subsystem generates a modulated LO. The LO modulation subsystem generates a modulated LO to maximize the symbol signal-to-noise ratio of the decoded digital information based on a plurality of: the desired signal, the interference and the noise expected in the communication channel, the characteristics of the converter, and the ability of the DSP to remove the Modulated LO from the converted signal. A mixer mixes the received signal and the modulated LO. A converter converts the mixed signal from analog to digital. A digital signal processor (DSP) removes the modulated LO and desired signal modulation, and decodes the desired signal encoded digital information.
摘要翻译：天线子系统通过通信信道接收模拟期望信号，噪声和干扰。所需信号包括调制编码的数字信息。本地振荡器（LO）调制子系统产生调制LO。 LO调制子系统产生调制LO，以使解码的数字信息的符号信噪比基于以下多个来最大化：期望信号，通信信道中预期的干扰和噪声，转换器的特性，以及DSP从转换信号中去除调制LO的能力。混频器将接收的信号和调制的LO混合。 A转换器将混合信号从模拟转换为数字。数字信号处理器（DSP）去除调制的LO和期望的信号调制，并对期望的信号编码的数字信息进行解码。

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