公开(公告)号：US07626110B2

公开(公告)日：2009-12-01

申请号：US10955904

申请日：2004-09-30

Applicant: Kabi Prakash Padhi ,  Sapna George

Inventor： Kabi Prakash Padhi ,  Sapna George

IPC: G10H1/00

CPC classification number: G10L15/02

Abstract: An energy-based pattern recognition algorithm receives the input frames of an audio signal and a test frame sequence and returns a best match in the audio signal to the given test frame sequence. The energy of each input frame is computed, and input frames for which the energy is within a predetermined degree of closeness to the local maximum energy within the test frame sequence are identified as probable matches. Probable matches are then eliminated if the respective probable match does not correspond to a local maximum within a respective neighborhood of adjacent frames. The difference between overall energy for frames neighboring the remaining probable matches and the test frame sequence is computed as a percentage, with the minimum percent deviation in energy from the test frame sequence being returned as the best pattern match. Local signal characteristic matching may be employed to refine matching.

Abstract translation: 基于能量的模式识别算法接收音频信号和测试帧序列的输入帧，并将音频信号中的最佳匹配返回给给定的测试帧序列。 计算每个输入帧的能量，并且将能量在与测试帧序列内的局部最大能量接近的预定程度内的输入帧识别为可能的匹配。 如果相应的可能匹配不对应于相邻帧的相应邻域内的局部最大值，则可以消除可能的匹配。 计算与剩余可能匹配相邻的帧的总体能量与测试帧序列之间的差异作为百分比计算，随着最佳模式匹配，返回测试帧序列的能量的最小百分比偏差。 可以采用本地信号特征匹配来优化匹配。

公开(公告)号：US07620261B2

公开(公告)日：2009-11-17

申请号：US10995937

申请日：2004-11-23

Applicant: Patricia Chiang ,  Lucas Y. W. Hui

Inventor： Patricia Chiang ,  Lucas Y. W. Hui

IPC: G06K9/40 ,  G06K9/36

CPC classification number: H04N19/16 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/157

Abstract: A method includes receiving image information representing at least one image. The image information defines multiple pixels in the at least one image. The method also includes identifying filter weights associated with the pixels. The filter weights are based on edge contents of at least a portion of the at least one image. In addition, the method includes filtering the image information using the identified filter weights.

Abstract translation: 一种方法包括接收表示至少一个图像的图像信息。 图像信息定义至少一个图像中的多个像素。 该方法还包括识别与像素相关联的滤波器权重。 过滤器重量基于至少一个图像的至少一部分的边缘内容。 另外，该方法包括使用所识别的滤波器权重来过滤图像信息。

公开(公告)号：US07602225B2

公开(公告)日：2009-10-13

申请号：US11829413

申请日：2007-07-27

Applicant: Donghyun Seo ,  Jacopo Mulatti ,  Taegyoung Kang

Inventor： Donghyun Seo ,  Jacopo Mulatti ,  Taegyoung Kang

IPC: H03K3/02

CPC classification number: H03K17/223 ,  G06F1/24 ,  G06F1/28

Abstract: A power on reset circuit initializes at power on a digital integrated circuit, and includes a first power on reset signal generator powered by an external power supply voltage and generates a first power on reset signal. A reference voltage generator is powered by the external power supply voltage, and is enabled by the first power on reset signal for generating a stable compensating reference voltage. A voltage down converter circuit receives the reference voltage and is enabled by the first power on reset signal, and converts the external applied power supply voltage to a stable regulated internal supply voltage. A second power on reset signal generator circuit receives the regulated internal supply voltage, and is enabled by the first power on reset signal for generating a second power on reset signal for core parts of the digital integrated circuit for initializing them at power on.

Abstract translation: 上电复位电路在数字集成电路通电时初始化，并且包括由外部电源电压供电的第一上电复位信号发生器，并产生第一上电复位信号。 参考电压发生器由外部电源电压供电，并通过第一个上电复位信号使能，以产生稳定的补偿参考电压。 降压转换器电路接收参考电压并通过第一上电复位信号使能，并将外部施加的电源电压转换为稳定的稳压内部电源电压。 第二上电复位信号发生器电路接收稳压的内部电源电压，并且由第一上电复位信号使能以产生用于数字集成电路的核心部分的第二上电复位信号，以便在通电时进行初始化。

公开(公告)号：US07598987B2

公开(公告)日：2009-10-06

申请号：US11290308

申请日：2005-11-29

Applicant: Yann Denis Desprez-Le Goarant ,  Chee Weng Yee

Inventor： Yann Denis Desprez-Le Goarant ,  Chee Weng Yee

IPC: H04N9/73 ,  H04N5/235 ,  H03F3/45 ,  H03G3/00

CPC classification number: H04N5/2351 ,  H04N5/2357 ,  H04N5/243

Abstract: A gain control circuit includes a light detector for generating an amount of current based on received light and a first switch for controlling the amount of current from the light detector delivered to a node. The gain control circuit also includes a charge storage element for providing an amount of capacitance to the node and a second switch for controlling the amount of capacitance provided to the node. The gain control circuit further includes an output interface for delivering an output signal based on the amount of current and the amount of capacitance at the node. The light detector may include multiple photodiodes, and the first switch may include a pair of NMOS switching transistors coupled to at least one photodiode. Also, the charge storage element may include multiple capacitors, and the second switch may include a PMOS transistor and an NMOS transistor coupled to each capacitor.

Abstract translation: 增益控制电路包括用于基于接收的光产生电流量的光检测器和用于控制从传送到节点的光检测器的电流量的第一开关。 增益控制电路还包括用于向节点提供一定量的电容的电荷存储元件和用于控制提供给节点的电容量的第二开关。 增益控制电路还包括用于基于电流量和节点处的电容量来输出输出信号的输出接口。 光检测器可以包括多个光电二极管，并且第一开关可以包括耦合到至少一个光电二极管的一对NMOS开关晶体管。 此外，电荷存储元件可以包括多个电容器，并且第二开关可以包括耦合到每个电容器的PMOS晶体管和NMOS晶体管。

公开(公告)号：US07596493B2

公开(公告)日：2009-09-29

申请号：US11312005

申请日：2005-12-19

Applicant: Ravindra Singh ,  Anoop K. Krishna

Inventor： Ravindra Singh ,  Anoop K. Krishna

IPC: G10L19/12 ,  G10L19/00

CPC classification number: G10L19/107 ,  G10L2019/0013

Abstract: A method for performing a search of a codebook is provided. The codebook includes a plurality of tracks each having a plurality of even pulse positions. The method includes partitioning a codevector having a plurality of pulses into a first subset of pulses and a second subset of pulses. Each pulse is assignable to a pulse position in the codevector, and each pulse is associated with a shift bit for indicating an odd position. The method also includes performing a first search for determining a first set of possible pulse positions for the pulses in the codevector. The method further includes performing a second search for determining a second set of possible pulse positions for the pulses in the codevector. In addition, the method includes forming the codevector using the first and second sets of possible pulse positions.

Abstract translation: 提供了一种执行码本搜索的方法。 码本包括多个具有多个偶数脉冲位置的轨迹。 该方法包括将具有多个脉冲的码矢分成脉冲的第一子集和第二脉冲子集。 每个脉冲可分配给码向量中的脉冲位置，并且每个脉冲与用于指示奇数位置的移位相关联。 该方法还包括执行第一搜索以确定码矢中的脉冲的第一组可能的脉冲位置。 该方法还包括执行第二搜索以确定码矢中的脉冲的第二组可能的脉冲位置。 此外，该方法包括使用第一和第二组可能的脉冲位置形成码矢量。

公开(公告)号：US07532445B2

公开(公告)日：2009-05-12

申请号：US10498727

申请日：2001-12-14

Applicant: Swarnali Rana, legal representative

Inventor： Sakti Pada Rana

IPC: H02H3/22 ,  H02H9/00

CPC classification number: H02H9/041 ,  H02H7/1227

Abstract: A circuit for transient voltage clamping, the circuit being internal to a motor driver ASIC for a hard drive and including a power transistor for sinking a power supply voltage subjected to transient variation, a reference circuit for deriving a first reference voltage from a second reference voltage and the power supply voltage, and an amplifier circuit for receiving the first reference voltage as input and for driving the power transistor.

Abstract translation: 一种用于瞬态电压钳位的电路，所述电路是用于硬盘驱动器的电动机驱动器ASIC的内部，并且包括用于吸收经受瞬态变化的电源电压的功率晶体管，用于从第二参考电压导出第一参考电压的参考电路 和电源电压，以及用于接收第一参考电压作为输入并驱动功率晶体管的放大器电路。

公开(公告)号：US20090115740A1

公开(公告)日：2009-05-07

申请号：US12265615

申请日：2008-11-05

Applicant: Kusuma Adi Ningrat ,  Chee Yu Ng

Inventor： Kusuma Adi Ningrat ,  Chee Yu Ng

IPC: G06F3/041

CPC classification number: G06F3/0416

Abstract: Integration of a FIFO memory, FIFO threshold and a timer, along with the other components of a touch screen system allows the number of interrupts to the touch screen controller to be reduced while allowing all point data to be acquired and preserved. In the first touch-detect event, an interrupt is issued to inform the host. The touch screen controller then automatically acquires data as long as touch is detected without host intervention. A FIFO threshold defines the minimum number of data points in FIFO memory before it issues an interrupt to inform the host that data is ready to be fetched. The timer is started once touch is detected. On every single data acquired, the timer is reset. In the event where touch is no longer detected, the timer keeps on counting until the time-up limit is reached. In this event, the touch screen controller will issue an interrupt informing the host the pen is lifted. The host then checks whether there is still data left in FIFO memory to be read.

Abstract translation: FIFO存储器，FIFO阈值和定时器以及触摸屏系统的其他组件的集成允许减少触摸屏控制器的中断次数，同时允许获取和保存所有点数据。 在第一次触摸检测事件中，发出中断通知主机。 只要在没有主机干预的情况下检测到触摸，触摸屏控制器就会自动获取数据。 FIFO阈值在发出中断之前定义FIFO存储器中的数据点的最小数量，以通知主机数据准备好被提取。 检测到触摸后，定时器开始。 在获取的每个单个数据上，定时器被复位。 在不再检测到触摸的情况下，定时器继续计数，直到达到超时限制。 在这种情况下，触摸屏控制器将发出中断，通知主机提起笔。 然后，主机检查是否仍然存在要读取的FIFO存储器中的数据。

公开(公告)号：US07515658B2

公开(公告)日：2009-04-07

申请号：US10879491

申请日：2004-06-29

Applicant: Karthik Muralidhar ,  Christopher Anthony Aldridge ,  Ser Wah Oh

Inventor： Karthik Muralidhar ,  Christopher Anthony Aldridge ,  Ser Wah Oh

IPC: H04L27/06 ,  H04L25/08

CPC classification number: H03M13/37 ,  H03M13/2957 ,  H03M13/45 ,  H03M13/6577 ,  H03M13/658 ,  H03M13/6591 ,  H04L1/0045

Abstract: The range R of effective bits (those containing information) within the N bit output(s) from an inner modem is determined and employed to select the M soft bits passed to a channel decoder, thereby avoiding underflow or overflow degrading the channel decoder performance. The average and standard deviation of 1P values for a base-two logarithm of the N bit output are used to determine the range R of effective bits, with the N bits shifted and clipped based on the computed value of R so that the M most significant bits from that range R are passed to the channel decoder.

Abstract translation: 确定来自内部调制解调器的N位输出中的有效位（包含信息的那些）的范围R，以用于选择传递到信道解码器的M个软比特，从而避免下行或溢出降低信道解码器性能。 使用N位输出的两个对数的1P值的平均值和标准偏差用于确定有效位的范围R，其中N位根据R的计算值移位和剪切，使得M最显着 来自该范围R的比特被传递到信道解码器。

公开(公告)号：US20080219244A1

公开(公告)日：2008-09-11

申请号：US12072817

申请日：2008-02-28

Applicant: Tanu Malhotra ,  Anoop Kumar Krishna

Inventor： Tanu Malhotra ,  Anoop Kumar Krishna

IPC: H04L12/66

CPC classification number: H04L65/1069 ,  H04L65/1006 ,  H04L65/1009 ,  H04L65/80 ,  H04L69/24 ,  H04M7/0072

Abstract: A method of improving voice quality in a packet based network. The method includes receiving an incoming call from a first endpoint and matching capabilities between the first endpoint and the second endpoint. The method also includes completing the incoming call if the capabilities match and tracking the packet loss associated with the network. The method also includes negotiating the voice quality based on the tracking and the capabilities. Also described is a devices and system for a similar method.

Abstract translation: 一种改善基于分组的网络中的语音质量的方法。 该方法包括从第一端点接收来话呼叫并在第一端点与第二端点之间匹配能力。 该方法还包括如果能力匹配并跟踪与网络相关联的分组丢失，则完成来话呼叫。 该方法还包括基于跟踪和能力来协商语音质量。 还描述了用于类似方法的装置和系统。

公开(公告)号：US20080199014A1

公开(公告)日：2008-08-21

申请号：US12006096

申请日：2007-12-28

Applicant: Evelyn Kurniawati ,  Sapna George

Inventor： Evelyn Kurniawati ,  Sapna George

IPC: H04R5/00

CPC classification number: H04S1/007 ,  G10L19/008 ,  H04S2420/03

Abstract: A method and audio device are presented that preserve mono energy during downmixing of a hybrid coding process of an audio signal. The method includes calculating a stereo scaling factor in a group level that is definable within a stereo band. The method may also include updating the stereo scaling factor using an update rate and synchronizing the update rate of a spatial parameter during a fast changing transient portion of the signal. A number of groups in a first stereo band may be greater than a number of groups in a second stereo band, and the first stereo band may be a lower frequency band than the second band or may be perceptually more important than the second band.

Abstract translation: 提出了一种方法和音频装置，其在音频信号的混合编码处理的下混合期间保持单个能量。 该方法包括计算在立体声频带内可定义的组电平中的立体声缩放因子。 该方法还可以包括使用更新速率来更新立体缩放比例因子，并且在信号的快速变化的瞬态部分期间同步空间参数的更新速率。 第一立体声带中的多个组可以大于第二立体声带中的组数，并且第一立体声频带可以是比第二频带更低的频带，或者可以在感知上比第二频带更重要。