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1. 发明申请

US20160255446A1 Methods, Systems, and Devices for Adaptively Filtering Audio Signals 有权
标题翻译：用于自适应过滤音频信号的方法，系统和设备
公开(公告)号：US20160255446A1
公开(公告)日：2016-09-01
申请号：US15050768
申请日：2016-02-23
申请人： Giuliano BERNARDI , Martin HILLBRATT , Toon van WATERSCHOOT , Alberto GOZZI
发明人： Giuliano BERNARDI , Martin HILLBRATT , Toon van WATERSCHOOT , Alberto GOZZI
IPC分类号： H04R25/00 , G10K11/00
CPC分类号： H04R25/453 , H04R2225/41
摘要： Systems, methods, and devices for adaptively filtering audio signals are disclosed. An example system includes a microphone configured to generate a first audio signal in response to receiving a sound, an output transducer configured to provide an output, and a sound processor configured to: (i) filter a first sample of the audio input signal using an adaptive filter to provide a first filtered audio input signal, with the dynamic range of the adaptive filter being limited by an initial value of at least one parameter filter; (ii) process the first filtered audio signal to provide a output audio signal; and (iii) cause the output transducer to provide an output that is based at least in part on the output audio signal. Adaptive signal modeling may be used to update the adaptive filter, with model and the initial value of at least one parameter filter being based on environmental classifier.
摘要翻译：公开了用于自适应地过滤音频信号的系统，方法和设备。一个示例性系统包括被配置为响应于接收到声音而产生第一音频信号的麦克风，被配置为提供输出的输出变换器和被配置为：（i）使用音频输入信号自适应滤波器以提供第一滤波音频输入信号，其中所述自适应滤波器的动态范围受到至少一个参数滤波器的初始值的限制; （ii）处理第一滤波音频信号以提供输出音频信号; 和（iii）使输出换能器至少部分地基于输出音频信号提供输出。自适应信号建模可用于更新自适应滤波器，模型和至少一个参数滤波器的初始值基于环境分类器。

2. 发明申请

US20090086711A1 CORRELATION OF ACCESS CODE FOR BLUETOOTH SYNCHRONIZATION 有权
标题翻译：蓝牙同步访问代码的相关性
公开(公告)号：US20090086711A1
公开(公告)日：2009-04-02
申请号：US11863865
申请日：2007-09-28
申请人： Pietro Capretta , Viktor Belokonskiy , Alberto Gozzi
发明人： Pietro Capretta , Viktor Belokonskiy , Alberto Gozzi
IPC分类号： H04J3/06
CPC分类号： H04L7/042
摘要： A circuit for processing a packet based signal received over a Bluetooth radio link has a correlator to detect at least part of the access code. A correlator controller, reconfigures the correlator according to a timing of the access code, to detect at least part of the EDR synchronization sequence, and a demodulator demodulates the payload according to the detection. The correlator has an input signal register, a buffer for a sequence of at least part of the wanted signal values, and a series of comparators arranged to compare input signal values with corresponding ones of the wanted signal values at more than one offset. By such dual use of the same correlator, the receiver can be made more cost effective.
摘要翻译：用于处理通过蓝牙无线电链路接收的基于分组的信号的电路具有检测至少部分访问码的相关器。相关器控制器根据接入码的定时重新配置相关器，以检测至少部分EDR同步序列，并且解调器根据检测来解调有效载荷。相关器具有输入信号寄存器，用于至少部分有用信号值的序列的缓冲器，以及一系列比较器，其布置成在多于一个偏移处将输入信号值与有用信号值中的对应信号值进行比较。通过相同相关器的这种双重使用，可以使接收器更具成本效益。

3. 发明授权

US08014379B2 Correlation of access code for bluetooth synchronization 有权
标题翻译：用于蓝牙同步的访问代码的相关性
公开(公告)号：US08014379B2
公开(公告)日：2011-09-06
申请号：US11863865
申请日：2007-09-28
申请人： Pietro Capretta , Viktor Belokonskiy , Alberto Gozzi
发明人： Pietro Capretta , Viktor Belokonskiy , Alberto Gozzi
IPC分类号： H04J3/06
CPC分类号： H04L7/042
摘要： A circuit for processing a packet based signal received over a Bluetooth radio link has a correlator to detect at least part of the access code. A correlator controller, reconfigures the correlator according to a timing of the access code, to detect at least part of the EDR synchronization sequence, and a demodulator demodulates the payload according to the detection. The correlator has an input signal register, a buffer for a sequence of at least part of the wanted signal values, and a series of comparators arranged to compare input signal values with corresponding ones of the wanted signal values at more than one offset. By such dual use of the same correlator, the receiver can be made more cost effective.
摘要翻译：用于处理通过蓝牙无线电链路接收的基于分组的信号的电路具有检测至少部分访问码的相关器。相关器控制器根据接入码的定时重新配置相关器，以检测至少部分EDR同步序列，并且解调器根据检测来解调有效载荷。相关器具有输入信号寄存器，用于至少部分有用信号值的序列的缓冲器，以及一系列比较器，其布置成在多于一个偏移处将输入信号值与有用信号值中的对应信号值进行比较。通过相同相关器的这种双重使用，可以使接收器更具成本效益。

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