公开(公告)号：US20140270241A1

公开(公告)日：2014-09-18

申请号：US13843254

申请日：2013-03-15

申请人： CSR TECHNOLOGY, INC

发明人： Tao Yu ,  Rogerio G. Alves

IPC分类号： G10L21/0208 ,  H04R3/00

CPC分类号： G10L21/0208 ,  G10L2021/02165 ,  H04R3/005 ,  H04R29/006 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/13

摘要： A method, apparatus, and manufacture for speech enhancement in an automotive environment is provided. Signals from first and second microphones of a two-microphone array are decomposed into subbands. At least one signal processing method is performed on the each subband of the decomposed signals to provide a first signal processing output signal and a second signal processing output signal. Subsequently, an acoustic events detection determination is made as to whether the driver, the front passenger, or neither is speaking. An acoustic events detection output signal is provided by selecting the first or second signal processing output signal and by either attenuating the selected signal or not, based on a currently selected operating mode and based on the result of the acoustic events detection determination. Each subband of the acoustics events detection output signal is then combined.

摘要翻译： 提供了一种用于汽车环境中语音增强的方法，装置和制造方法。 来自双麦克风阵列的第一和第二麦克风的信号被分解成子带。 对分解信号的每个子带执行至少一个信号处理方法，以提供第一信号处理输出信号和第二信号处理输出信号。 随后，对驾驶员，前排乘客或两者是否正在进行声音事件检测确定。 通过基于当前选择的操作模式并且基于声学事件检测确定的结果，通过选择第一或第二信号处理输出信号并且通过衰减所选择的信号来提供声学事件检测输出信号。 然后组合声学事件检测输出信号的每个子带。

公开(公告)号：US08774278B2

公开(公告)日：2014-07-08

申请号：US13740468

申请日：2013-01-14

申请人： CSR Technology Inc.

发明人： Monica Man Kay Tang ,  Yee Shun Chan

IPC分类号： H04N7/12

CPC分类号： H04N7/014 ,  H04N5/144 ,  H04N7/012 ,  H04N7/0137

摘要： A recursive motion detector for detecting motion in an interlaced video signal. The motion detector includes a first frame motion detector receiving a next field and a first previous field, a second frame motion detector receiving a current field and a second previous field, and a third frame motion detector receiving a next field and a third previous field. Motion is detected when the first, second and third frame motion detectors combine to produce a frame motion result.

摘要翻译： 一种用于检测隔行扫描视频信号中运动的递归运动检测器。 运动检测器包括接收下一场和第一前一场的第一帧运动检测器，接收当前场和第二先前场的第二帧运动检测器和接收下一场和第三前一场的第三帧运动检测器。 当第一，第二和第三帧运动检测器组合以产生帧运动结果时，检测运动。

公开(公告)号：US08736487B2

公开(公告)日：2014-05-27

申请号：US13239318

申请日：2011-09-21

申请人： Shreeram Jambulingam ,  Mangesh Chansarkar

发明人： Shreeram Jambulingam ,  Mangesh Chansarkar

IPC分类号： G01S19/40

CPC分类号： G01S19/50

摘要： The present invention is related to location positioning systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation calculations. According to a first aspect, the invention includes maintaining a table of height attributes for major cities and urban areas around the world (contour table) in the GNSS chipset. The information in the table preferably includes latitude, longitude of the city along with height attributes of those cities, such as the average, min, max height and region boundary etc. Additional information such as average gradient could also be saved in the table. According to further aspects, when GPS signals are degraded in environments such as urban canyons, the height information can be obtained from the table and used to improve the navigation solution.

摘要翻译： 本发明涉及位置定位系统，更具体地，涉及一种用于对GPS接收机的导航计算进行精度改进的方法和装置。 根据第一方面，本发明包括维护GNSS芯片组中的世界主要城市和城市地区的高度属性表（轮廓表）。 表中的信息最好包括城市的纬度，经度以及这些城市的高度属性，如平均值，最小值，最大高度和区域边界等。还可以在表格中保存平均梯度等附加信息。 根据进一步的方面，当GPS信号在诸如城市峡谷的环境中劣化时，可以从表中获得高度信息，并用于改进导航解决方案。

公开(公告)号：US20140119478A1

公开(公告)日：2014-05-01

申请号：US13664700

申请日：2012-10-31

申请人： CSR TECHNOLOGY INC.

发明人： Amin Fazeldehkordi ,  Rogerio G. Alves

IPC分类号： H04L1/00

CPC分类号： H04L25/4927 ,  G10L19/005

摘要： A method of updating the state of a decoder that decodes a wide-band signal including a plurality of sub-band signals, including: receiving the plurality of sub-band signals; for each sub-band signal, storing portions of that sub-band signal in a respective buffer; responsive to determining that a portion of the wide-band signal is degraded, performing a packet loss concealment algorithm to determine wide-band replacement data for the degraded portion; selecting a portion of the sub-band signal stored in each buffer in dependence on the determined wide-band replacement data; and updating the state of the decoder using the selected portions.

摘要翻译： 一种更新对包括多个子带信号的宽带信号进行解码的解码器的状态的方法，包括：接收多个子带信号; 对于每个子带信号，将该子带信号的部分存储在相应的缓冲器中; 响应于确定所述宽带信号的一部分被降级，执行分组丢失隐藏算法以确定所述退化部分的宽带替换数据; 根据确定的宽带替换数据选择存储在每个缓冲器中的子带信号的一部分; 以及使用所选择的部分来更新解码器的状态。

公开(公告)号：US08713213B1

公开(公告)日：2014-04-29

申请号：US13074248

申请日：2011-03-29

申请人： Cenk Yildiz ,  Albert Kuo ,  Andrew Popplewell

发明人： Cenk Yildiz ,  Albert Kuo ,  Andrew Popplewell

IPC分类号： G06F3/00 ,  G06F13/00

CPC分类号： G06F13/385 ,  Y02D10/14 ,  Y02D10/151

摘要： A partial HDMI physical layer (“phy”) decoder core is used in an audiovisual (A/V) sink device to perform HDCP pre-authentication on inactive HDMI ports, so as to enable fast switching between HDMI ports. Whenever a source device is connected to the any HDMI port of the A/V sink device, HDCP authentication is performed on that port immediately, even if A/V data on that port is not being output to a user. As a result, when the user switches between HDMI channels, the output is available to the user instantly, without any HDCP-related delay. The A/V sink includes the partial HDMI phy decoder core in addition to a full HDMI phy decoder core. The full HDMI phy decoder core is used to extract and decode signals received on the active port. The partial HDMI phy decoder core is used to extract and decode only those HDMI signals received on an inactive port that are needed for pre-authenticating the inactive port.

摘要翻译： 在视听（A / V）宿设备中使用部分HDMI物理层（“phy”）解码器核，以在非活动HDMI端口上执行HDCP预认证，以便能够在HDMI端口之间快速切换。 每当源设备连接到A / V宿设备的任何HDMI端口时，即使该端口上的A / V数据未输出给用户，也会立即对该端口执行HDCP认证。 结果，当用户在HDMI通道之间切换时，输出可以立即用于用户，而没有任何HDCP相关的延迟。 除了完整的HDMI phy解码器核心之外，A / V接收器还包括部分HDMI phy解码器内核。 完整的HDMI phy解码器核心用于提取和解码在活动端口上接收到的信号。 部分HDMI phy解码器核心仅用于提取和解码在非活动端口上接收的HDMI信号，这些信号是用于预认证非活动端口所需要的。

公开(公告)号：US08711918B2

公开(公告)日：2014-04-29

申请号：US13414095

申请日：2012-03-07

申请人： Jordan Christopher Cookman ,  Ping Dong ,  Tao Yu

发明人： Jordan Christopher Cookman ,  Ping Dong ,  Tao Yu

IPC分类号： H03H7/30 ,  H04B1/10

CPC分类号： H04L25/03159 ,  H04L25/0212 ,  H04L25/03057 ,  H04L27/2657 ,  H04L2025/03414

摘要： An adaptive known signal canceller comprising of a known signal canceller filter responsive to a known signal including a known portion of a transmitted signal, the known signal canceller filter operative to generate a filtered known signal, and a subtractor unit responsive to an input signal and operative to generate an output signal, the subtractor unit configured to subtract the filtered known signal from the input signal to generate an output signal, such that the known portion of the transmitted signal is substantially removed from the input signal. The adaptive known signal canceller further comprising of a known signal canceller update unit, responsive to a desired signal and an output signal and operative to continually adjust the coefficients of the known signal canceller filter based on the difference between the output signal and the desired signal, so that the filter coefficients substantially reflect the impulse response of a channel.

摘要翻译： 一种自适应的已知信号消除器，其包括响应于包括已发射信号的已知信号的已知信号的已知信号消除器滤波器，用于产生已滤波的已知信号的已知信号消除器滤波器以及响应于输入信号和操作的减法器单元 为了产生输出信号，减法器单元被配置为从输入信号中减去已滤波的已知信号以产生输出信号，从而基本上从输入信号中去除已发射信号的已知部分。 自适应已知信号消除器还包括已知的信号消除器更新单元，响应所需信号和输出信号，并且可操作以基于输出信号和期望信号之间的差连续地调整已知信号消除器滤波器的系数， 使得滤波器系数基本上反映了信道的脉冲响应。

公开(公告)号：US08675748B2

公开(公告)日：2014-03-18

申请号：US12787147

申请日：2010-05-25

申请人： Sriram Mudulodu ,  Jordan Christopher Cookman

发明人： Sriram Mudulodu ,  Jordan Christopher Cookman

IPC分类号： H04K1/10

CPC分类号： H04L5/0053 ,  H04L1/0029 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0057 ,  H04L5/006

摘要： Systems and methods which provide for reduced intra communication system information transfer by providing a compressed representation of a portion of intra communication system information are shown. An embodiment operates to provide intra communication system transfer of uncompressed received information while providing intra communication system transfer of a compressed representation of information ancillary to the received information. According to embodiments, ancillary information, such as CSI, associated with other transferred information is transferred with reduced data throughput requirements through application of compression techniques with respect to the transferred ancillary information. Embodiments additionally or alternatively reduce the intra communication system information transferred by reducing the received information transferred.

摘要翻译： 示出了通过提供内部通信系统信息的一部分的压缩表示来提供减少的内部通信系统信息传输的系统和方法。 一个实施例用于提供未压缩接收信息的内部通信系统传输，同时提供内部通信系统传输与所接收信息相关的信息的压缩表示。 根据实施例，通过相对于传送的辅助信息应用压缩技术，通过减少的数据吞吐量要求来传送与其他传送的信息相关联的诸如CSI的辅助信息。 实施例另外地或可选地减少通过减少所传送的接收信息而传送的内部通信系统信息。

公开(公告)号：US20140002694A1

公开(公告)日：2014-01-02

申请号：US13540476

申请日：2012-07-02

申请人： Noam Levy ,  Guy Rapaport

发明人： Noam Levy ,  Guy Rapaport

IPC分类号： H04N7/28 ,  H04N5/262 ,  H04N7/26

CPC分类号： G06T1/20 ,  G06T5/007 ,  G06T5/50 ,  G06T7/35 ,  G06T2200/28 ,  G06T2207/20208 ,  H04N5/23267 ,  H04N5/2355 ,  H04N5/355

摘要： Embodiments are directed towards enabling digital cameras to digitally process a captured a Low Dynamic Range image sequence at a real time video rate, and to convert the image sequence into an High Dynamic Range (HDR) image sequence using a pipelined architecture. Two or more image frames are captured using different exposure settings and then combined to form a single HDR output frame in a video sequence. The pipelined architecture operate on adjacent image frames by performing an image alignment, an image mixing, and a tone mapping on the adjacent image frames to generate the HDR image sequence.

摘要翻译： 实施例涉及使数字照相机以实时视频速率数字处理所捕获的低动态范围图像序列，并且使用流水线架构将图像序列转换为高动态范围（HDR）图像序列。 使用不同的曝光设置捕获两个或多个图像帧，然后组合以在视频序列中形成单个HDR输出帧。 流水线架构通过在相邻图像帧上执行图像对准，图像混合和色调映射来操作相邻图像帧，以生成HDR图像序列。

公开(公告)号：US08611423B2

公开(公告)日：2013-12-17

申请号：US12029201

申请日：2008-02-11

申请人： Ilya Romm

发明人： Ilya Romm

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/85 ,  H04N19/114 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61

摘要： The invention facilitates the use of low resolution estimation to identify an optimal sequence of frame types for encoding a stream of video data. In one embodiment a series of video frames are downscaled and divided into superblocks. Low resolution motion estimation metrics are calculated for the superblocks and compared to corresponding superblocks of a previous frame. A series of video frame types is selected based on the comparison metrics and used to encode the video frames.

摘要翻译： 本发明有利于使用低分辨率估计来识别用于编码视频数据流的帧类型的最佳序列。 在一个实施例中，一系列视频帧被缩减并分成超级块。 针对超级块计算低分辨率运动估计度量，并与先前帧的相应超级块进行比较。 基于比较度量选择一系列视频帧类型，并用于编码视频帧。

公开(公告)号：US08610465B2

公开(公告)日：2013-12-17

申请号：US12993145

申请日：2009-05-25

申请人： Christer Jansson

发明人： Christer Jansson

IPC分类号： H03K5/22

CPC分类号： H03F3/45753 ,  H03F2203/45292 ,  H03F2203/45444 ,  H03F2203/45538 ,  H03F2203/45634

摘要： A comparator circuit (5) comprising a fully differential main amplifier unit (10, 10b). The main amplifier unit (10, 10b) comprises a control port and is adapted to control a bias current of a first branch of the main amplifier unit (10, 10b) and/or a bias current of a second branch of the main amplifier unit (10, 10b) in response to one or more control voltages supplied to the control port of the main amplifier unit (10, 10b). The comparator circuit (5) comprises circuitry (60) for balancing the voltages at the positive and negative input terminals (12a, 12b) of the main amplifier unit (10, 10b) during a first clock phase of the comparator circuit (5). Furthermore, the comparator circuit (10, 10a) comprises a switched-capacitor accumulator unit with a differential input. The switched-capacitor accumulator unit is operatively connected to the positive and negative output terminals (14a, 14b) of the main amplifier unit (10, 10b) for sampling voltages at the positive and negative output terminals (14a, 14b) of the main amplifier unit (10, 10b) during the first clock phase, and operatively connected to the control port of the main amplifier unit (10, 10b) for supplying said one or more control voltages.

摘要翻译： 一种包括全差分主放大器单元（10,10b）的比较器电路（5）。 主放大器单元（10,10b）包括控制端口，并且适于控制主放大器单元（10,10b）的第一支路的偏置电流和/或主放大器单元的第二支路的偏置电流 （10,10b），响应于提供给主放大器单元（10,10b）的控制端口的一个或多个控制电压。 比较器电路（5）包括用于在比较器电路（5）的第一时钟相位期间平衡主放大器单元（10,10b）的正和负输入端（12a，12b）处的电压的电路（60）。 此外，比较器电路（10,10a）包括具有差分输入的开关电容器累加器单元。 开关电容器蓄电单元可操作地连接到主放大器单元（10,10b）的正输出端和负输出端（14a，14b），用于对主放大器的正负输出端（14a，14b）采样电压 单元（10,10b），并且可操作地连接到主放大器单元（10,10b）的控制端口，用于提供所述一个或多个控制电压。