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    • 82. 发明申请
    • ACOUSTIC ECHO CONTROL FOR AUTOMATED SPEAKER TRACKING SYSTEMS
    • 用于自动扬声器跟踪系统的声学ECHO控制
    • US20150110282A1
    • 2015-04-23
    • US14098064
    • 2013-12-05
    • CISCO TECHNOLOGY, INC.
    • Haohai SUN
    • H04B3/23H04R3/00
    • H04B3/23G10L25/51G10L2021/02082H04M9/082H04M2250/20H04N7/15H04R3/005
    • A processing system can include a tracking microphone array; audio tracker circuitry connected to the tracking microphone array to track an audio source based on an audio input from the array; communication microphones; and a processor. The processor can include audio circuitry to receive an audio input from the communication microphones and process the audio input to apply one or more of acoustic echo cancellation (AEC) and acoustic echo suppression (AES) processing to the audio input. The processor can further include calculating circuitry to calculate a ratio of signal power after and before the AEC and/or the AES processing, and control circuitry to generate an acoustic echo presence indication based on the ratio calculated by the calculating circuitry. The processor can transmit, via transmitting circuitry, the acoustic echo presence indication to an audio tracking device via a data communication channel between the processor and the audio tracker.
    • 处理系统可以包括跟踪麦克风阵列; 连接到跟踪麦克风阵列的音频跟踪器电路基于来自阵列的音频输入来跟踪音频源; 通讯麦克风; 和处理器。 处理器可以包括音频电路,以从通信麦克风接收音频输入,并处理音频输入以将一个或多个声学回声消除(AEC)和声学回声抑制(AES)处理应用于音频输入。 处理器还可以包括计算电路以计算在AEC和/或AES处理之前和之后的信号功率的比率,以及控制电路,以基于由计算电路计算的比率来生成声学回声存在指示。 处理器可以经由发送电路经由处理器和音频跟踪器之间的数据通信信道将声学回声存在指示发送到音频跟踪装置。
    • 90. 发明申请
    • HANDHELD ELECTRONIC DEVICE
    • 手持电子设备
    • US20090149216A1
    • 2009-06-11
    • US12369723
    • 2009-02-11
    • John C. WangMickey Mii
    • John C. WangMickey Mii
    • H04M1/00
    • H04N5/2251H04M1/0214H04M1/0264H04M2250/20H04N1/00307H04N2007/145H04N2101/00
    • A handheld electronic device mainly includes a first casing, a second casing and an image-capturing apparatus. The first casing has a first surface and a second surface. The first casing has a display screen on the first surface and a window extending through the first surface and the second surface. The second casing is pivoted to the first casing. The second casing is permitted to move over the second surface of the first casing. The image-capturing apparatus is set up on the second casing for capturing images. When the second casing is located on the second surface of the first casing, the image-capturing apparatus and the display screen both faces the same direction so that the image-capturing apparatus can capture images of a user of the handheld electronic device facing the display screen. At this position, the image-capturing apparatus is exposed to the user through the window.
    • 手持电子设备主要包括第一壳体,第二壳体和图像捕获设备。 第一壳体具有第一表面和第二表面。 第一壳体具有在第一表面上的显示屏和延伸穿过第一表面和第二表面的窗口。 第二壳体枢转到第一壳体。 允许第二壳体在第一壳体的第二表面上移动。 图像捕获装置设置在用于捕获图像的第二壳体上。 当第二壳体位于第一壳体的第二表面上时,图像拍摄设备和显示屏幕都面向相同的方向,使得图像捕获设备可以捕获面向显示器的手持电子设备的用户的图像 屏幕。 在该位置,图像捕获装置通过窗口暴露给用户。