-
公开(公告)号：US10755690B2
公开(公告)日：2020-08-25
申请号：US16004881
申请日：2018-06-11
IPC分类号： G10K11/178 , H04R1/10
摘要： A headphone device includes a speaker housing, a first feedforward microphone, and a second feedforward microphone. The first feedforward microphone is coupled to the speaker housing at a first location, and the second feedforward microphone is coupled to the speaker housing at a second location. The headphone device also includes an active noise cancelling (ANC) circuit configured to generate an anti-noise signal based on at least one of a first signal from the first feedforward microphone and a second signal from the second feedforward microphone. The headphone device also includes a speaker configured to generate an audio output at least partially based on the anti-noise signal.
-
公开(公告)号：US09686743B2
公开(公告)日：2017-06-20
申请号：US14713128
申请日：2015-05-15
CPC分类号： H04W52/0241 , H04W4/02 , H04W24/08 , H04W52/0251 , H04W52/0261 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/166
摘要： A method for a tracking device optimizing power to remain reachable for a desired period based on evaluated wide-area-network conditions. The tracking device may communicate via a power-intensive long-range transceiver and may continually measure service conditions related to network communications. The tracking device may periodically calculate statistical information describing the service conditions, such as a percentage of time in which the tracking device was out-of-network-service. Based on the statistics, the tracking device may operate in an optimization mode to conserve power when out-of-network-service. In an embodiment, the tracking device may calculate the statistics based on evaluation periods defined by predefined numbers of out-of-network-service occurrences, predefined time periods, and/or a hybrid of both. In an embodiment, the tracking device may conserve power in a power save state that alternates with another operating state in which the tracking device periodically evaluates criteria before either continuing to conserve power or utilize network resources.
-
公开(公告)号：US20160125866A1
公开(公告)日：2016-05-05
申请号：US14714839
申请日：2015-05-18
IPC分类号： G10K11/175
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17835 , G10K11/17855 , G10K2210/1081 , G10K2210/30391 , G10K2210/3051 , G10K2210/3053
摘要： A method of audio signal processing includes determining a difference between a first set of filter parameters of a first input frame of an active noise cancellation (ANC) filter and a second set of filter parameters of a second input frame of the ANC filter. The method further includes selectively modifying a duty cycle of adaptive ANC processing associated with the ANC filter based on the difference between the first set of filter parameters and the second set of filter parameters.
摘要翻译： 音频信号处理的方法包括确定有源噪声消除（ANC）滤波器的第一输入帧的第一组滤波器参数与ANC滤波器的第二输入帧的第二组滤波器参数之间的差。 该方法还包括基于第一组滤波器参数和第二组滤波器参数之间的差异选择性地修改与ANC滤波器相关联的自适应ANC处理的占空比。
-
公开(公告)号：US09276630B2
公开(公告)日：2016-03-01
申请号：US14623094
申请日：2015-02-16
IPC分类号： H04B1/00 , H04B1/7156 , H04W4/02 , H04W56/00 , H04B1/7143 , G01S19/16 , G01S1/04 , G01S1/68 , G08B21/02
CPC分类号： H04B1/7156 , G01S1/042 , G01S1/68 , G01S19/16 , G08B21/0222 , G08B21/023 , G08B21/0238 , G08B21/025 , G08B21/0269 , H04B1/7143 , H04W4/021 , H04W56/002
摘要： Systems, methods, and devices of the various embodiments provide modified frequency hopping patterns that enable synchronization of a wireless tracking device with a beacon signal that defines a predetermined area (i.e., beacon fence). In an embodiment, a beacon may transmit a beacon signal according to a modified frequency hopping pattern and a wireless tracking device may receive the beacon signal by tuning a receiver according to the frequency hopping pattern. In an embodiment, the modified frequency hopping pattern may include a reference frequency generated at a high redundancy pattern multiplexed with a pseudo random sequence of frequencies. In an embodiment, the packets of the beacon signal transmitted at the reference frequency may include an indication of the next frequency according to the modified frequency hopping pattern.
-
公开(公告)号：US20150264647A1
公开(公告)日：2015-09-17
申请号：US14713128
申请日：2015-05-15
CPC分类号： H04W52/0241 , H04W4/02 , H04W24/08 , H04W52/0251 , H04W52/0261 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/166
摘要： A method for a tracking device optimizing power to remain reachable for a desired period based on evaluated wide-area-network conditions. The tracking device may communicate via a power-intensive long-range transceiver and may continually measure service conditions related to network communications. The tracking device may periodically calculate statistical information describing the service conditions, such as a percentage of time in which the tracking device was out-of-network-service. Based on the statistics, the tracking device may operate in an optimization mode to conserve power when out-of-network-service. In an embodiment, the tracking device may calculate the statistics based on evaluation periods defined by predefined numbers of out-of-network-service occurrences, predefined time periods, and/or a hybrid of both. In an embodiment, the tracking device may conserve power in a power save state that alternates with another operating state in which the tracking device periodically evaluates criteria before either continuing to conserve power or utilize network resources.
摘要翻译： 一种跟踪装置的方法，其基于所估计的广域网状况，优化功率以保持期望期望的时间。 跟踪设备可以经由功率密集型远程收发器进行通信，并且可以连续地测量与网络通信相关的服务条件。 跟踪装置可以周期性地计算描述服务条件的统计信息，例如跟踪装置在网络外服务之外的时间百分比。 基于统计，跟踪设备可以在优化模式下操作以在网络外服务时节省功率。 在一个实施例中，跟踪设备可以基于由预定义数量的网络外服务事件，预定时间段和/或两者的混合来定义的评估周期来计算统计。 在一个实施例中，跟踪设备可节省与另一操作状态交替的省电状态下的功率，其中跟踪设备在继续节省功率或利用网络资源之前周期性地评估标准。
-
公开(公告)号：US09055475B2
公开(公告)日：2015-06-09
申请号：US13831722
申请日：2013-03-15
CPC分类号： H04W52/0241 , H04W4/02 , H04W24/08 , H04W52/0251 , H04W52/0261 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/164 , Y02D70/166
摘要： A method for a tracking device optimizing power to remain reachable for a desired period based on evaluated wide-area-network conditions. The tracking device may communicate via a power-intensive long-range transceiver and may continually measure service conditions related to network communications. The tracking device may periodically calculate statistical information describing the service conditions, such as a percentage of time in which the tracking device was out-of-network-service. Based on the statistics, the tracking device may operate in an optimization mode to conserve power when out-of-network-service. In an embodiment, the tracking device may calculate the statistics based on evaluation periods defined by predefined numbers of out-of-network-service occurrences, predefined time periods, and/or a hybrid of both. In an embodiment, the tracking device may conserve power in a power save state that alternates with another operating state in which the tracking device periodically evaluates criteria before either continuing to conserve power or utilize network resources.
摘要翻译： 一种跟踪装置的方法，其基于所估计的广域网状况，优化功率以保持期望期望的时间。 跟踪设备可以经由功率密集型远程收发器进行通信，并且可以连续地测量与网络通信相关的服务条件。 跟踪装置可以周期性地计算描述服务条件的统计信息，例如跟踪装置在网络外服务之外的时间百分比。 基于统计，跟踪设备可以在优化模式下操作以在网络外服务时节省功率。 在一个实施例中，跟踪设备可以基于由预定义数量的网络外服务事件，预定时间段和/或两者的混合来定义的评估周期来计算统计。 在一个实施例中，跟踪设备可节省与另一操作状态交替的省电状态下的功率，其中跟踪设备在继续节省功率或利用网络资源之前周期性地评估标准。
-
公开(公告)号：US09651673B2
公开(公告)日：2017-05-16
申请号：US13831684
申请日：2013-03-15
CPC分类号： G01S19/24 , G01S19/34 , G08B21/023 , H04W52/0209 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/166
摘要： Methods, systems and devices are provided for operating a GPS engine in an active geofence monitoring state for no more than a first QoS period to obtain a first GPS fix. The GPS engine may also be set to operate in the active geofence monitoring state for no more than a second lower QoS period to obtain a second GPS fix in response to determining the first GPS fix was not obtained. The method may determine whether a geofence breach is detected in response to determining the GPS engine obtained the first GPS fix. The GPS engine may be set to operate in the active geofence monitoring state for no more than the second QoS period to obtain the second GPS fix in response to determining the geofence breach is not detected. The GPS engine may thus operate in the active geofence monitoring state to obtain the second GPS fix.
-
公开(公告)号：US09466282B2
公开(公告)日：2016-10-11
申请号：US14714839
申请日：2015-05-18
IPC分类号： G10K11/16 , G10K11/175 , G10K11/178
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17835 , G10K11/17855 , G10K2210/1081 , G10K2210/30391 , G10K2210/3051 , G10K2210/3053
摘要： A method of audio signal processing includes determining a difference between a first set of filter parameters of a first input frame of an active noise cancellation (ANC) filter and a second set of filter parameters of a second input frame of the ANC filter. The method further includes selectively modifying a duty cycle of adaptive ANC processing associated with the ANC filter based on the difference between the first set of filter parameters and the second set of filter parameters.
摘要翻译： 音频信号处理的方法包括确定有源噪声消除（ANC）滤波器的第一输入帧的第一组滤波器参数与ANC滤波器的第二输入帧的第二组滤波器参数之间的差。 该方法还包括基于第一组滤波器参数和第二组滤波器参数之间的差异选择性地修改与ANC滤波器相关联的自适应ANC处理的占空比。
-
公开(公告)号：US20150180534A1
公开(公告)日：2015-06-25
申请号：US14623094
申请日：2015-02-16
IPC分类号： H04B1/7156 , H04W4/02 , H04B1/7143
CPC分类号： H04B1/7156 , G01S1/042 , G01S1/68 , G01S19/16 , G08B21/0222 , G08B21/023 , G08B21/0238 , G08B21/025 , G08B21/0269 , H04B1/7143 , H04W4/021 , H04W56/002
摘要： Systems, methods, and devices of the various embodiments provide modified frequency hopping patterns that enable synchronization of a wireless tracking device with a beacon signal that defines a predetermined area (i.e., beacon fence). In an embodiment, a beacon may transmit a beacon signal according to a modified frequency hopping pattern and a wireless tracking device may receive the beacon signal by tuning a receiver according to the frequency hopping pattern. In an embodiment, the modified frequency hopping pattern may include a reference frequency generated at a high redundancy pattern multiplexed with a pseudo random sequence of frequencies. In an embodiment, the packets of the beacon signal transmitted at the reference frequency may include an indication of the next frequency according to the modified frequency hopping pattern.
摘要翻译： 各种实施例的系统，方法和设备提供修改的跳频模式，其使无线跟踪设备能够与定义预定区域（即，信标屏障）的信标信号同步。 在一个实施例中，信标可以根据修改的跳频模式发送信标信号，并且无线跟踪设备可以通过根据跳频模式调谐接收机来接收信标信号。 在一个实施例中，修改的跳频图案可以包括以与伪随机的频率序列复用的高冗余模式生成的参考频率。 在一个实施例中，以参考频率发送的信标信号的分组可以包括根据修改的跳频模式的下一个频率的指示。
-
公开(公告)号：US08958455B2
公开(公告)日：2015-02-17
申请号：US13831737
申请日：2013-03-15
IPC分类号： H04B1/00 , H04B1/7156 , H04W4/02 , H04W56/00
CPC分类号： H04B1/7156 , G01S1/042 , G01S1/68 , G01S19/16 , G08B21/0222 , G08B21/023 , G08B21/0238 , G08B21/025 , G08B21/0269 , H04B1/7143 , H04W4/021 , H04W56/002
摘要： Systems, methods, and devices of the various embodiments provide modified frequency hopping patterns that enable synchronization of a wireless tracking device with a beacon signal that defines a predetermined area (i.e., beacon fence). In an embodiment, a beacon may transmit a beacon signal according to a modified frequency hopping pattern and a wireless tracking device may receive the beacon signal by tuning a receiver according to the frequency hopping pattern. In an embodiment, the modified frequency hopping pattern may include a reference frequency generated at a high redundancy pattern multiplexed with a pseudo random sequence of frequencies. In an embodiment, the packets of the beacon signal transmitted at the reference frequency may include an indication of the next frequency according to the modified frequency hopping pattern.
摘要翻译： 各种实施例的系统，方法和设备提供修改的跳频模式，其使无线跟踪设备能够与定义预定区域（即，信标屏障）的信标信号同步。 在一个实施例中，信标可以根据修改的跳频模式发送信标信号，并且无线跟踪设备可以通过根据跳频模式调谐接收机来接收信标信号。 在一个实施例中，修改的跳频图案可以包括以与伪随机的频率序列复用的高冗余模式生成的参考频率。 在一个实施例中，以参考频率发送的信标信号的分组可以包括根据修改的跳频模式的下一个频率的指示。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.017 秒)
