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1. 发明授权

EP2588939B1 TOUCHLESS SENSING AND GESTURE RECOGNITION USING CONTINUOUS WAVE ULTRASOUND SIGNALS 有权
公开(公告)号：EP2588939B1
公开(公告)日：2018-12-12
申请号：EP11730838.7
申请日：2011-06-29
申请人： Qualcomm Incorporated
发明人： LI, Ren , LEE, Te-Won , NELSON, Hui-ya, L. , GUPTA, Samir, K.
IPC分类号： G06F3/01 , G01S15/50 , G01S15/32 , G01S15/87
CPC分类号： G06F3/011 , G01S7/5273 , G01S15/325 , G01S15/50 , G01S15/876 , G06F3/017
摘要： The embodiments provide systems and methods for touchless sensing and gesture recognition using continuous wave sound signals. Continuous wave sound, such as ultrasound, emitted by a transmitter may reflect from an object, and be received by one or more sound receivers. Sound signals may be temporally encoded. Received sound signals may be processed to determine a channel impulse response or calculate time of flight. Determined channel impulse responses may be processed to extract recognizable features or angles. Extracted features may be compared to a database of features to identify a user input gesture associated with the matched feature. Angles of channel impulse response curves may be associated with an input gesture. Time of flight values from each receiver may be used to determine coordinates of the reflecting object. Embodiments may be implemented as part of a graphical user interface. Embodiments may be used to determine a location of an emitter.

2. 发明公开

EP1250797A1 IMPROVED SYSTEM AND METHOD FOR IMPLEMENTATION OF AN ECHO CANCELLER 有权
标题翻译：用于实现回声消除改进方法和设备
公开(公告)号：EP1250797A1
公开(公告)日：2002-10-23
申请号：EP01906733.9
申请日：2001-01-26
申请人： QUALCOMM INCORPORATED
发明人： GUPTA, Samir, K.
IPC分类号： H04M9/08 , H04B3/23
CPC分类号： H04M9/082
摘要： A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmuted state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

3. 发明公开

EP3005049A1 DISPLAY WITH BACKSIDE ULTRASONIC SENSOR ARRAY 有权
标题翻译：背部换能器设置DISPLAY
公开(公告)号：EP3005049A1
公开(公告)日：2016-04-13
申请号：EP14733473.4
申请日：2014-06-02
申请人： Qualcomm Incorporated
发明人： SCHNEIDER, John, K. , KITCHENS, Jack, C. , GOJEVIC, Stephen, M. , DICKINSON, Timothy, A. , GUPTA, Samir, K. , DJORDJEV, Kostadin, D. , BURNS, David, William , FENNELL, Leonard, E. , GANTI, Suryaprakash
IPC分类号： G06F3/043
摘要： A display device has a visual display capable of providing an image and an ultrasonic sensor array attached to a backside component of the visual display. The ultrasonic sensor array may be an ultrasonic area array sensor. For example, the backside component may be a backlight, an optical waveguide, or a display TFT.

4. 发明授权

EP1250797B1 IMPROVED SYSTEM AND METHOD FOR IMPLEMENTATION OF AN ECHO CANCELLER 有权
标题翻译：用于实现回声消除改进方法和设备
公开(公告)号：EP1250797B1
公开(公告)日：2006-11-15
申请号：EP01906733.9
申请日：2001-01-26
申请人： QUALCOMM INCORPORATED
发明人： GUPTA, Samir, K.
IPC分类号： H04M9/08 , H04B3/23
CPC分类号： H04M9/082
摘要： A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmuted state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

5. 发明授权

EP3005049B1 DISPLAY WITH BACKSIDE ULTRASONIC SENSOR ARRAY 有权
公开(公告)号：EP3005049B1
公开(公告)日：2019-12-25
申请号：EP14733473.4
申请日：2014-06-02
申请人： Qualcomm Incorporated
发明人： SCHNEIDER, John, K. , KITCHENS, Jack, C. , GOJEVIC, Stephen, M. , DICKINSON, Timothy, A. , GUPTA, Samir, K. , DJORDJEV, Kostadin, D. , BURNS, David, William , FENNELL, Leonard, E. , GANTI, Suryaprakash
IPC分类号： G06F3/043

6. 发明公开

EP2588939A2 TOUCHLESS SENSING AND GESTURE RECOGNITION USING CONTINUOUS WAVE ULTRASOUND SIGNALS 有权
标题翻译：非接触式传感和手势识别与连续波模式的超声波信号
公开(公告)号：EP2588939A2
公开(公告)日：2013-05-08
申请号：EP11730838.7
申请日：2011-06-29
申请人： Qualcomm Incorporated
发明人： LI, Ren , LEE, Te-Won , NELSON, Hui-ya, L. , GUPTA, Samir, K.
IPC分类号： G06F3/01
CPC分类号： G06F3/011 , G01S7/5273 , G01S15/325 , G01S15/50 , G01S15/876 , G06F3/017
摘要： The embodiments provide systems and methods for touchless sensing and gesture recognition using continuous wave sound signals. Continuous wave sound, such as ultrasound, emitted by a transmitter may reflect from an object, and be received by one or more sound receivers. Sound signals may be temporally encoded. Received sound signals may be processed to determine a channel impulse response or calculate time of flight. Determined channel impulse responses may be processed to extract recognizable features or angles. Extracted features may be compared to a database of features to identify a user input gesture associated with the matched feature. Angles of channel impulse response curves may be associated with an input gesture. Time of flight values from each receiver may be used to determine coordinates of the reflecting object. Embodiments may be implemented as part of a graphical user interface. Embodiments may be used to determine a location of an emitter.

7. 发明公开

EP2391941A1 DYNAMICALLY PROVISIONING A DEVICE WITH AUDIO PROCESSING CAPABILITY 审中-公开
标题翻译： DYNAMISCHE BEREITSTELLUNG EINER VORRICHTUNG MITTONVERARBEITUNGSFÄHIGKEIT
公开(公告)号：EP2391941A1
公开(公告)日：2011-12-07
申请号：EP10720476.0
申请日：2010-01-21
申请人： QUALCOMM Incorporated
发明人： SAMPAT, Kuntal, D. , CHOY, Eddie, L. T. , LINSKY, Joel , GUPTA, Samir, K.
IPC分类号： G06F9/445 , G06F13/10
CPC分类号： H04W8/245 , G06F9/44526
摘要： An executable is downloaded to an audio output device over a communications link. The executable may configure the audio output device to decode audio encoded in a specified format. The executable may also or alternatively include other audio processing software. The audio may include voice and/or audio playback, e.g., music playback. The ability to download an audio executable allows dynamic provisioning of various decoding and/or audio process capabilities to an audio output device. This may eliminate the need to transcode digitized audio for playback at the audio output device, and may also allow the audio output device to decode multiple audio formats without having multiple audio decoders permanently residing within the audio output device.
摘要翻译：通过通信链路将可执行文件下载到音频输出设备。可执行程序可以配置音频输出设备来解码以指定格式编码的音频。可执行程序还可以或者可选地包括其他音频处理软件。音频可以包括语音和/或音频播放，例如音乐播放。下载音频可执行文件的能力允许向音频输出设备动态地提供各种解码和/或音频处理能力。这可能不需要转换数字化音频以在音频输出设备处回放，并且还可以允许音频输出设备解码多种音频格式，而不会使多个音频解码器永久驻留在音频输出设备内。

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