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1. 发明授权

US09801026B2 Automatically determining relative locations of collaboration endpoints within a building 有权
公开(公告)号：US09801026B2
公开(公告)日：2017-10-24
申请号：US15249674
申请日：2016-08-29
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes , Bjorn Winsvold
IPC分类号： H04W4/04 , G06Q10/10 , H04L29/08 , H04W4/02 , H04W88/02
CPC分类号： H04W4/043 , G06Q10/1095 , H04L67/18 , H04W4/021 , H04W88/02
摘要： Techniques are presented herein for a server to automatically determine the locations of collaboration endpoints and user devices throughout a building, and then provide the user devices with directions to the endpoints. The server collects air pressure and GPS readings from the user devices over a period of time. The readings may be collected from user devices that are paired or unpaired with endpoints at the time of the readings. Over a period of time, the plurality of readings may be used by the server to calculate user device offsets, endpoint offsets, floor level offsets, and endpoint relative orientations within the building. The server may then, in response to a notification of an upcoming meeting, provide the user device with directions to the meeting based on the collected readings.

2. 再颁专利

USRE49462E1 Adaptive noise cancellation for multiple audio endpoints in a shared space 有权
公开(公告)号：USRE49462E1
公开(公告)日：2023-03-14
申请号：US17325875
申请日：2021-05-20
申请人： Cisco Technology, Inc.
发明人： Lennart Burenius , Oystein Birkenes
IPC分类号： G10L21/0232 , H04R3/04 , G10L21/0208 , H04R1/40 , H04R1/10
摘要： Techniques for adaptive noise cancellation for multiple audio endpoints in a shared space are described. According to one example, a method includes detecting, by a first audio endpoint, one or more audio endpoints co-located with the first audio endpoint at a first location. A selected audio endpoint of the one or more audio endpoints is identified as a target noise source. The method includes obtaining, from the selected audio endpoint, a loudspeaker reference signal associated with a loudspeaker of the selected audio endpoint and removing the loudspeaker reference signal from a microphone signal associated with a microphone of the first audio endpoint. The method also includes providing the microphone signal from the first audio endpoint to at least one of a voice user interface (VUI) or a second audio endpoint, wherein the second audio endpoint is located remotely from the first location.

3. 发明授权

US10473751B2 Audio based motion detection 有权
公开(公告)号：US10473751B2
公开(公告)日：2019-11-12
申请号：US15496362
申请日：2017-04-25
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes
IPC分类号： G01S5/18 , G06F1/32 , G10L21/038 , H04N5/232 , H04N7/15 , H04R29/00 , H04R3/00 , H04R3/04 , G06F1/3231 , G06F1/3296 , H04N7/14 , G01S1/74
摘要： A controller of a collaboration endpoint generates a primary audio signal for an ultrasonic source audio signal produced by a source audio speaker, a reference audio signal for the ultrasonic source audio signal, and, based on the reference audio signal, a predicted signal that is predictive of the primary audio signal. The controller produces a prediction error of the predicted signal by comparing the primary audio signal with the predicted signal and determines whether the prediction error is indicative of a motion of one or more persons near the collaboration endpoint.

4. 发明授权

US10297266B1 Adaptive noise cancellation for multiple audio endpoints in a shared space 有权
公开(公告)号：US10297266B1
公开(公告)日：2019-05-21
申请号：US16009652
申请日：2018-06-15
申请人： Cisco Technology, Inc.
发明人： Lennart Burenius , Oystein Birkenes
IPC分类号： G10L21/0232 , H04R3/04 , H04R1/40 , G10L21/0208
摘要： Techniques for adaptive noise cancellation for multiple audio endpoints in a shared space are described. According to one example, a method includes detecting, by a first audio endpoint, one or more audio endpoints co-located with the first audio endpoint at a first location. A selected audio endpoint of the one or more audio endpoints is identified as a target noise source. The method includes obtaining, from the selected audio endpoint, a loudspeaker reference signal associated with a loudspeaker of the selected audio endpoint and removing the loudspeaker reference signal from a microphone signal associated with a microphone of the first audio endpoint. The method also includes providing the microphone signal from the first audio endpoint to at least one of a voice user interface (VUI) or a second audio endpoint, wherein the second audio endpoint is located remotely from the first location.

5. 发明授权

US09451414B1 Automatically determining relative locations of collaboration endpoints within a building 有权
标题翻译：自动确定建筑物内协作端点的相对位置
公开(公告)号：US09451414B1
公开(公告)日：2016-09-20
申请号：US14861382
申请日：2015-09-22
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes , Bjorn Winsvold
IPC分类号： H04W4/04 , G06Q10/10
CPC分类号： H04W4/043 , G06Q10/1095 , H04L67/18 , H04W4/021 , H04W88/02
摘要： Techniques are presented herein for a server to automatically determine the locations of collaboration endpoints and user devices throughout a building, and then provide the user devices with directions to the endpoints. The server collects air pressure and GPS readings from the user devices over a period of time. The readings may be collected from user devices that are paired or unpaired with endpoints at the time of the readings. Over a period of time, the plurality of readings may be used by the server to calculate user device offsets, endpoint offsets, floor level offsets, and endpoint relative orientations within the building. The server may then, in response to a notification of an upcoming meeting, provide the user device with directions to the meeting based on the collected readings.
摘要翻译：这里给出了一种服务器技术来自动确定整个建筑物中的协作端点和用户设备的位置，然后向用户设备提供到端点的指导。服务器在一段时间内从用户设备收集气压和GPS读数。读数可以从读取时与端点配对或不配对的用户设备收集。在一段时间内，服务器可以使用多个读数来计算建筑物内的用户设备偏移，端点偏移，楼层偏移和端点相对方向。服务器然后可以响应于即将到来的会议的通知，基于收集的读数向用户设备提供指示会议的指示。

6. 发明申请

US20190107987A1 AUTOMATED CONFIGURATION OF MULTIPLE COLLABORATION ENDPOINTS 审中-公开
公开(公告)号：US20190107987A1
公开(公告)日：2019-04-11
申请号：US15729160
申请日：2017-10-10
申请人： Cisco Technology, Inc.
发明人： Kristian Tangeland , Oystein Birkenes , Michael Elliott Jones , Linn Tale Haugen , Jon Dalvang Andresen
IPC分类号： G06F3/147 , H04L29/08 , H04L12/24 , G06F3/14
摘要： A computer-implemented method including at a server in communication with at least first and second collaboration endpoints each located within a same physical space: determining a relative positioning of the first and second collaboration endpoints; and configuring content displayed at each of the first and second endpoints based on the relative positioning of the first and second collaboration endpoints is disclosed.

7. 发明申请

US20170086032A1 AUTOMATICALLY DETERMINING RELATIVE LOCATIONS OF COLLABORATION ENDPOINTS WITHIN A BUILDING 审中-公开
公开(公告)号：US20170086032A1
公开(公告)日：2017-03-23
申请号：US15249674
申请日：2016-08-29
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes , Bjorn Winsvold
IPC分类号： H04W4/04 , H04W4/02 , H04L29/08
CPC分类号： H04W4/043 , G06Q10/1095 , H04L67/18 , H04W4/021 , H04W88/02
摘要： Techniques are presented herein for a server to automatically determine the locations of collaboration endpoints and user devices throughout a building, and then provide the user devices with directions to the endpoints. The server collects air pressure and GPS readings from the user devices over a period of time. The readings may be collected from user devices that are paired or unpaired with endpoints at the time of the readings. Over a period of time, the plurality of readings may be used by the server to calculate user device offsets, endpoint offsets, floor level offsets, and endpoint relative orientations within the building. The server may then, in response to a notification of an upcoming meeting, provide the user device with directions to the meeting based on the collected readings.

8. 发明申请

US20180306900A1 AUDIO BASED MOTION DETECTION 审中-公开
公开(公告)号：US20180306900A1
公开(公告)日：2018-10-25
申请号：US15496362
申请日：2017-04-25
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes
IPC分类号： G01S5/18 , H04R3/04 , H04R3/00 , G10L21/038 , H04R29/00 , H04N7/15 , H04N5/232 , G06F1/32
CPC分类号： G01S5/18 , G01S1/74 , G06F1/3231 , G06F1/3296 , H04N7/147 , H04R3/005 , H04R2430/23
摘要： A controller of a collaboration endpoint generates a primary audio signal for an ultrasonic source audio signal produced by a source audio speaker, a reference audio signal for the ultrasonic source audio signal, and, based on the reference audio signal, a predicted signal that is predictive of the primary audio signal. The controller produces a prediction error of the predicted signal by comparing the primary audio signal with the predicted signal and determines whether the prediction error is indicative of a motion of one or more persons near the collaboration endpoint.

9. 发明授权

US09633270B1 Using speaker clustering to switch between different camera views in a video conference system 有权
公开(公告)号：US09633270B1
公开(公告)日：2017-04-25
申请号：US15091056
申请日：2016-04-05
申请人： Cisco Technology, Inc.
发明人： Kristian Tangeland , Erik Hellerud , Oystein Birkenes
IPC分类号： H04N7/15 , G06K9/00 , H04N5/232 , G10L17/00 , G10L17/10
CPC分类号： G06K9/00228 , G10L17/00 , G10L17/005 , G10L17/10 , H04N5/23219 , H04N7/147 , H04N7/15
摘要： A video conference endpoint includes one or more cameras to capture video of different views and a microphone array to sense audio. One or more closeup views are defined. The endpoint detects faces in the captured video and active audio sources from the sensed audio. The endpoint detects any active talker having detected face positions that coincide with detected active audio sources, and also uses speaker clustering to detect whether any active talker is associated with a previously stored closeup views. Based on whether an active talker is detected in any of the stored closeup views, the endpoint switches between capturing video of one of the closeup views and a best overview of the participants in the conference room.

10. 发明授权

US09319633B1 Ultrasonic echo canceler-based technique to detect participant presence at a video conference endpoint 有权
标题翻译：基于超声波回波消除器的技术来检测视频会议端点的参与者存在
公开(公告)号：US09319633B1
公开(公告)日：2016-04-19
申请号：US14662691
申请日：2015-03-19
申请人： Cisco Technology, Inc.
发明人： Oystein Birkenes , Lennart Burenius , Kristian Tangeland
IPC分类号： H04N7/14 , H04N7/15 , H04L29/06 , G10L17/22 , G10L25/21
CPC分类号： H04N7/15 , G01S15/04 , G01S15/523 , H04L65/4038 , H04L65/80 , H04N7/142
摘要： A loudspeaker transmits an ultrasonic signal into a spatial region. A microphone transduces ultrasonic sound, including an echo of the transmitted ultrasonic signal, received from the spatial region into a received ultrasonic signal. A controller transforms the ultrasonic signal and the received ultrasonic signal into respective time-frequency domains that cover respective ultrasound frequency ranges. The controller computes an error signal, representative of an estimate of an echo-free received ultrasonic signal, based on the transformed ultrasonic signal and the transformed received ultrasonic signal. The controller computes power estimates of the error signal over time, and detects a change in people presence in the spatial region based on a change in the power estimates of the error signal over time.
摘要翻译：扬声器将超声波信号发送到空间区域。麦克风将从空间区域接收的包括发送的超声信号的回波的超声波转换为接收的超声波信号。控制器将超声波信号和接收到的超声波信号变换成覆盖各个超声频率范围的各个时域。控制器基于变换的超声波信号和经变换的接收到的超声信号，计算代表无回波接收的超声波信号的估计的误差信号。控制器随时间计算误差信号的功率估计，并且基于随时间的误差信号的功率估计值的变化来检测人员在空间区域中的存在的变化。

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