Room acoustics correction device
    1.
    发明申请
    Room acoustics correction device 审中-公开
    房间声学校正装置

    公开(公告)号:US20070121955A1

    公开(公告)日:2007-05-31

    申请号:US11289328

    申请日:2005-11-30

    IPC分类号: H04R29/00 H03G3/00

    CPC分类号: H04S7/301

    摘要: A method and system are provided for improving the preferred listening environment of a sound system. Initially, a calibration pulse is generated from one or more rendering devices. Next, the calibration pulse is captured at a microphone attached to the rendering devices. Thereafter, one or more time delay, gain, and frequency response characteristics of the sound system are calculated using the captured calibration pulse. Based on these calculations, the time delay, gain, and frequency response characteristics of the rendering devices are adjusted respectively to cause the sound generated from the rendering devices to reach a listener's acoustic preference.

    摘要翻译: 提供了一种用于改善声音系统的首选聆听环境的方法和系统。 最初,从一个或多个渲染装置产生校准脉冲。 接下来,在连接到再现装置的麦克风处捕获校准脉冲。 此后,使用捕获的校准脉冲计算声音系统的一个或多个时间延迟,增益和频率响应特性。 基于这些计算,分别调整渲染设备的时间延迟,增益和频率响应特性,使得从渲染设备产生的声音达到听众的声学偏好。

    Adaptive entropy encoding/decoding for screen capture content
    2.
    发明授权
    Adaptive entropy encoding/decoding for screen capture content 有权
    用于屏幕捕获内容的自适应熵编码/解码

    公开(公告)号:US07016547B1

    公开(公告)日:2006-03-21

    申请号:US10186639

    申请日:2002-06-28

    申请人: Sergey Smirnov

    发明人: Sergey Smirnov

    IPC分类号: G06K9/36

    摘要: Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entropy encoding modes (such as an arithmetic coding mode and a combined run length/Huffman encoding mode, which allow the encoder to emphasize bitrate reduction at some times and encoding speed at other times). The run length encoding can use run value symbols adapted to common patterns of redundancy in the content. When the encoder detects series of pixels that could be encoded with different, alternative runs, the encoder selects between the alternative runs based upon efficiency criteria. The encoder also performs adaptive Huffman encoding, efficiently parameterizing Huffman code tables to reduce overall bitrate while largely preserving the compression gains of the adaptive Huffman encoding. A decoder performs converse operations.

    摘要翻译: 描述了自适应熵编码和解码技术。 例如,屏幕捕获编码器和解码器在屏幕捕获视频中执行调色屏幕捕获内容的自适应熵编码和解码。 编码器在不同的熵编码模式(诸如算术编码模式和组合游程长度/霍夫曼编码模式)之间进行选择,这允许编码器在某些时候强调比特率降低和在其它时间强调编码速度)。 运行长度编码可以使用适合内容中的常见冗余模式的运行值符号。 当编码器检测到可以用不同的替代运行进行编码的一系列像素时,编码器根据效率标准在替代运行之间进行选择。 编码器还执行自适应霍夫曼编码,有效地参数化霍夫曼码表以减少总比特率,同时在很大程度上保持自适应霍夫曼编码的压缩增益。 解码器执行相反的操作。

    Digital media universal elementary stream
    4.
    发明申请
    Digital media universal elementary stream 有权
    数字媒体通用基本流

    公开(公告)号:US20050234731A1

    公开(公告)日:2005-10-20

    申请号:US10966443

    申请日:2004-10-14

    CPC分类号: G10L19/167

    摘要: Described techniques and tools include techniques and tools for mapping digital media data (e.g., audio, video, still images, and/or text, among others) in a given format to a transport or file container format useful for encoding the data on optical disks such as digital video disks (DVDs). A digital media universal elementary stream can be used to map digital media streams (e.g., an audio stream, video stream or an image) into any arbitrary transport or file container, including optical disk formats, and other transports, such as broadcast streams, wireless transmissions, etc. The information to decode any given frame of the digital media in the stream can be carried in each coded frame. A digital media universal elementary stream includes stream components called chunks. An implementation of a digital media universal elementary stream arranges data for a media stream in frames, the frames having one or more chunks.

    摘要翻译: 描述的技术和工具包括用于将给定格式的数字媒体数据(例如,音频,视频,静止图像和/或文本等)映射到用于对光盘上的数据进行编码有用的传输或文件容器格式的技术和工具 例如数字视频盘(DVD)。 数字媒体通用基本流可用于将数字媒体流(例如,音频流,视频流或图像)映射到任何任意的传输或文件容器中,包括光盘格式和其他传输,例如广播流,无线 传输等。用于解码流中数字媒体的任何给定帧的信息可以在每个编码帧中传送。 数字媒体通用基本流包括称为块的流组件。 数字媒体通用基本流的实现将帧中的媒体流的数据排列,帧具有一个或多个块。

    Smart optical microphone/sensor
    5.
    发明授权
    Smart optical microphone/sensor 失效
    智能光学麦克风/传感器

    公开(公告)号:US06603105B2

    公开(公告)日:2003-08-05

    申请号:US09758635

    申请日:2001-01-10

    IPC分类号: G01J132

    CPC分类号: G01D5/30

    摘要: The invention provides a smart optical microphone/sensor for sensing distances to a membrane or to a light-reflecting surface, including a source of light for illuminating the membrane or light-reflecting surface; a photodetector for receiving light reflected from the membrane or light-reflecting surface and for producing output signals; adjustable means for supplying power to the source of light, and a pre-amplifier for amplifying the output signals, whereby the sensitivity of the microphone/sensor can be adjusted.

    摘要翻译: 本发明提供了一种用于感测到膜或光反射表面的距离的智能光学麦克风/传感器,包括用于照亮膜或光反射表面的光源; 用于接收从膜或光反射表面反射并产生输出信号的光的光电检测器; 用于向光源供电的可调节装置和用于放大输出信号的前置放大器,从而可以调节麦克风/传感器的灵敏度。

    Adaptive entropy encoding/decoding for screen capture content

    公开(公告)号:US20070116370A1

    公开(公告)日:2007-05-24

    申请号:US11652172

    申请日:2007-01-10

    申请人: Sergey Smirnov

    发明人: Sergey Smirnov

    IPC分类号: G06K9/36

    摘要: Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entropy encoding modes (such as an arithmetic coding mode and a combined run length/Huffman encoding mode, which allow the encoder to emphasize bitrate reduction at some times and encoding speed at other times). The run length encoding can use run value symbols adapted to common patterns of redundancy in the content. When the encoder detects series of pixels that could be encoded with different, alternative runs, the encoder selects between the alternative runs based upon efficiency criteria. The encoder also performs adaptive Huffman encoding, efficiently parameterizing Huffman code tables to reduce overall bitrate while largely preserving the compression gains of the adaptive Huffman encoding. A decoder performs converse operations.

    Analog front end for a wireless device
    9.
    发明申请
    Analog front end for a wireless device 审中-公开
    模拟前端用于无线设备

    公开(公告)号:US20070270110A1

    公开(公告)日:2007-11-22

    申请号:US11437263

    申请日:2006-05-18

    IPC分类号: H04B1/04 H01Q11/12

    摘要: A novel amplifier for a wireless device is disclosed. The system employing the preferred embodiment can deliver a radio signal with output power up to 500 mW for 64QAM (48 Mb/s bit rate) modulation and a radio signal up to 700 mW for 16QAM (36 Mb/s bit rate) modulation with the packet error rate below 1%. The increase of the signal from 10 to 500 mW (64QAM modulation) thus increases the base station coverage area 50 times.

    摘要翻译: 公开了一种用于无线设备的新型放大器。 采用优选实施例的系统可以向64QAM(48Mb / s比特率)调制输出功​​率高达500mW的无线电信号和对于16QAM(36Mb / s比特率)调制的高达700mW的无线电信号,其中 数据包错误率低于1%。 信号从10mW(64QAM调制)的增加从而使基站覆盖区域增加50倍。

    Volume normalization device
    10.
    发明申请
    Volume normalization device 审中-公开
    体积归一化装置

    公开(公告)号:US20070121966A1

    公开(公告)日:2007-05-31

    申请号:US11289398

    申请日:2005-11-30

    IPC分类号: H03G3/00

    CPC分类号: H03G7/007

    摘要: A method and system are provided for equalizing the loudness of an audio source. Initially, the perceptual loudness level of an audio signal is measured from one or more audio sources. Next, the loudness level of the audio signal is adjusted using the perceptual loudness level. Thereafter, the audio signal corresponding to the music selections is reproduced such that the perceived loudness to a listener is the same entirely throughout a music track corresponding to the music selections.

    摘要翻译: 提供了一种用于均衡音源的响度的方法和系统。 首先,从一个或多个音频源测量音频信号的感知响度水平。 接下来,使用感知响度级调节音频信号的响度级别。 此后,再现与音乐选择相对应的音频信号,使得对于听众的感知响度在与音乐选择相对应的音乐轨道中完全相同。