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    • 41. 发明申请
    • Apparatus to produce karaoke accompaniment
    • 制作卡拉OK伴奏的装置
    • US20050182504A1
    • 2005-08-18
    • US10782338
    • 2004-02-18
    • James Bailey
    • James Bailey
    • G06F17/00G10H1/36
    • G10H1/363G10H2250/125
    • A process and apparatus to convert, an input musical signal, including an original vocalist and musical accompaniment, into accompaniment for a Karaoke singer. The component of the input musical signal corresponding to the original vocalist is suppressed, by filtering or digital processing, to reduce audibility of that vocalist. The resulting modified musical signal can be recorded for future playback. A user's voice also can be added to the modified musical signal, to replace the original vocalist, with the corresponding output of the apparatus being played audibly in real-time, recorded for future playback, or both. In certain embodiments, circuitry can be included to perform effects on a user's vocal input, such as pitch control, reverb, and echo.
    • 用于将包括原始歌手和音乐伴奏的输入音乐信号转换为伴奏的卡拉OK歌手的处理和装置。 通过滤波或数字处理抑制对应于原始歌手的输入音乐信号的分量,以降低该歌手的可听度。 可以记录所产生的修改的音乐信号以供将来播放。 用户的声音也可以被添加到修改的音乐信号中,以替换原始的歌手,其中设备的相应输出被实时地被播放,记录以备将来播放,或两者兼有。 在某些实施例中,可以包括电路以对用户的声音输入执行效果,例如音调控制,混响和回声。
    • 48. 发明申请
    • system and method for dynamically shifting error diffusion data
    • 用于动态移动误差扩散数据的系统和方法
    • US20060158692A1
    • 2006-07-20
    • US11037559
    • 2005-01-18
    • James BaileyDavid CrutchfieldShaun Love
    • James BaileyDavid CrutchfieldShaun Love
    • H04N1/40
    • H04N1/4052
    • Error diffusion is performed using a Floyd-Steinberg-like approach. A integer-representation of a running error is compressed by storing only its most significant bits and returning any remainder to the error diffusion processor. The running error is shifted to the right until only the desired number of significant bits remain, and this compressed error is stored. Any portion of the original running error that is lost due to the shifting is treated as a remainder and is returned to the error diffusion processor for use in calculating an adjusted current pixel value. The amount of the shift is retained in compressed form to keep track of the number of shifts needed to form a truncated running error from the compressed running error.
    • 使用Floyd-Steinberg方法进行误差扩散。 通过仅存储其最高有效位并将任何余数返回到误差扩散处理器来压缩运行中的错误的整数表示。 运行错误向右移动,直到只剩下所需数量的有效位,并存储该压缩错误。 由于偏移而丢失的原始运行错误的任何部分被视为余数,并且被返回到误差扩散处理器以用于计算调整的当前像素值。 移位量以压缩形式保留,以跟踪从压缩的运行错误中形成截断的运行错误所需的班次数。
    • 49. 发明申请
    • System and method for data-driven error diffusion using pointer
    • 使用指针进行数据驱动误差扩散的系统和方法
    • US20060132848A1
    • 2006-06-22
    • US11018204
    • 2004-12-20
    • James BaileyDavid Crutchfield
    • James BaileyDavid Crutchfield
    • H04N1/40
    • H04N1/4052
    • Pixel data-driven error diffusion is performed by using two lookup tables. The first table receives a non-binary pixel value and outputs a selection signal in response thereto. The selection signal serves as a pointer to entries in the second table where coefficients associated with a set of error spread weights are stored. In this manner, each non-binary pixel value is mapped onto a handful of predetermined sets of error spread weights to be used in an error diffusion calculation. The first table, the second table and an associated error diffusion processor can all reside on a common integrated circuit. A third table can also be indexed at the same time to provide randomization information to be used in calculating a dynamic threshold for used in a half-toning process for the corresponding pixel.
    • 通过使用两个查找表来执行像素数据驱动的错误扩散。 第一表接收非二进制像素值,并响应于此输出选择信号。 所述选择信号用作指向第二表中与条目的项目的指针,其中存储与一组误差扩展权重相关的系数。 以这种方式,将每个非二进制像素值映射到少量预定的误差扩散权重集合以用于误差扩散计算。 第一表,第二表和相关的误差扩散处理器都可以驻留在公共集成电路上。 第三表也可以同时被索引,以提供用于计算用于对应像素的半色调处理中的动态阈值的随机化信息。
    • 50. 发明申请
    • Calibration technique for variable-gain amplifiers
    • 可变增益放大器的校准技术
    • US20050270092A1
    • 2005-12-08
    • US10862699
    • 2004-06-07
    • James BaileyStephen Franck
    • James BaileyStephen Franck
    • H03F1/02H03F1/30H03F3/45H03G3/20
    • H03F1/30H03F3/45928
    • A variable-gain amplifier (VGA), with one or more amplifier stages, has two or more offset correction sources connected to apply offset correction signals at different locations in the VGA. In one embodiment, each amplifier stage has both an input offset correction source and an output offset correction source. In another embodiment, each amplifier stage of a multi-stage VGA has an input offset correction source. By sequentially calibrating each amplifier stage, starting with the initial stage and proceeding downstream, the entire VGA can be calibrated to achieve gain-independent compensation for the adverse affects of input and output voltage offsets at the input and output, respectively, of each stage.
    • 具有一个或多个放大器级的可变增益放大器(VGA)具有两个或多个偏移校正源,其连接以在VGA中的不同位置处施加偏移校正信号。 在一个实施例中,每个放大器级具有输入偏移校正源和输出偏移校正源。 在另一实施例中,多级VGA的每个放大级具有输入偏移校正源。 通过顺序校准每个放大器级,从初始阶段开始并在下游进行,可以对整个VGA进行校准,以实现增益无关的补偿,用于分别在每个输入和输出端的输入和输出电压偏移的不利影响。