Discrete multichannel audio with a backward compatible mix

    公开(公告)号:US20070225842A1

    公开(公告)日:2007-09-27

    申请号:US11726976

    申请日:2007-03-22

    IPC分类号: G06F17/00

    CPC分类号: H04S3/00

    摘要: A multichannel audio format provides a truly discrete as well as a backward compatible mix for surround-sound, front or other discrete audio channels in cinema, home theater, or music environments. The additional discrete audio signals are mixed with the existing discrete audio channels into a predetermined format such as the 5.1 audio format. In addition these additional discrete audio channels are encoded and appended to the predetermined format as extension bits in the bitstream. The existing base of multichannel decoders can be used in combination with a mix decoder to reproduce truly discrete N.1 multichannel audio.

    Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
    2.
    发明申请
    Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio 审中-公开
    解码双通道矩阵编码音频以重建多声道音频的方法

    公开(公告)号:US20060095269A1

    公开(公告)日:2006-05-04

    申请号:US11300767

    申请日:2005-12-15

    IPC分类号: G10L21/00

    CPC分类号: H04S3/02

    摘要: The present invention provides a method and apparatus for decoding two-channel matrix encoded audio (32) to reconstruct multichannel audio (34) that more closely approximates a discrete surround-sound presentation. This is accomplished by subband filtering (54) the two-channel matrix encoded audio, mapping (70) each of the subband signals into an expanded sound field (68) to produce multichannel subband signals, and synthesizing (78) those subband signals to reconstruct multichannel audio. By steering the subbands separately about an expanded sound field, various sounds can be simultaneously positioned about the sound field at different points allowing for more accurate placement and more distinct definition of each sound element.

    摘要翻译: 本发明提供一种用于解码双通道矩阵编码音频(32)以重构更接近离散环绕声呈现的多声道音频(34)的方法和装置。 这是通过对双通道矩阵编码音频进行子带滤波(54),将每个子带信号映射(70)到扩展声场(68)中以产生多声道子带信号,并合成(78)那些子带信号以重构 多声道音频 通过单独地对扩展的声场方向控制子带,可以在不同点处的声场周围同时定位各种声音,从而允许更准确的放置和更清晰的每个声音元素的定义。

    Reclining Chair Assembly
    4.
    发明申请

    公开(公告)号:US20220257018A1

    公开(公告)日:2022-08-18

    申请号:US17178305

    申请日:2021-02-18

    申请人: William Smith

    发明人: William Smith

    IPC分类号: A47C1/024 A47C7/50

    摘要: A reclining chair assembly includes a reclining chair that has a backrest portion and a chair portion for having a user sit therein. A pair of footrests is each disposed on the chair portion of the reclining chair and each of the footrests is positionable in a lowered position or a raised position to raise the respective user's leg. Moreover, the pair of footrests is independently positionable in the raised position to facilitate one of the user's legs to be lifted while the other of the user's legs is not lifted. A pair of lifting units is each in mechanical communication with a respective one of the pair of footrests. Each of the lifting units independently urges the respective footrest into the raised position or the lowered position.

    Transient Protection Filter Circuit that Minimizes the Effects of Thermal Runaway
    7.
    发明申请
    Transient Protection Filter Circuit that Minimizes the Effects of Thermal Runaway 审中-公开
    瞬态保护滤波电路,尽可能减少热失控的影响

    公开(公告)号:US20140362485A1

    公开(公告)日:2014-12-11

    申请号:US13911305

    申请日:2013-06-06

    申请人: William Smith

    发明人: William Smith

    IPC分类号: H02H9/04

    摘要: Commonly, a transient protection filter circuit is integrated between power sources and the circuits that follow to suppress voltage transients. Pre-existing transient protection filters are implemented such that when a transient is detected, transistors in the path become linear regulators. Instead, this invention uses bridge resistors to form a voltage divider to dissipate the extra power. The novelty of this invention is that it protects the load not by dissipating the extra power in front of the load as other transient protection filter circuits do, but by providing energy from the transient to the load through a resistor. This implementation solves the problem of thermal runaway that is commonly caused when transient voltages are filtered by dissipating power within the transistors in the path of the transient and the electric circuits after the transistors.

    摘要翻译: 通常,瞬态保护滤波器电路集成在电源和随后的电路之间以抑制电压瞬变。 实现了现有的瞬态保护滤波器,使得当检测到瞬态时,路径中的晶体管变为线性稳压器。 相反,本发明使用桥式电阻器来形成分压器以耗散额外功率。 本发明的新颖之处在于,其它瞬态保护滤波器电路不是通过消耗负载前面的额外功率来保护负载,而是通过电阻将瞬态能量提供给负载。 该实现解决了当瞬态电压通过在晶体管之后的瞬态路径和电路中的晶体管内消耗功率而被滤波时通常引起的热失控的问题。

    Method and system for font building
    10.
    发明授权
    Method and system for font building 失效
    字体制作方法与系统

    公开(公告)号:US07492365B2

    公开(公告)日:2009-02-17

    申请号:US11133429

    申请日:2005-05-19

    IPC分类号: G06T11/00

    CPC分类号: G06F17/214

    摘要: A method and system for font building by providing for the downloading of a subset of glyphs at a client device from a server. The subset can include one or more particular requested glyphs. The subset is accompanied by one or more further glyphs determined by selection criteria, which can include: frequency of use of the glyphs in a particular language; frequency of use of the glyphs by at least one client device; and relationships between particular glyphs.

    摘要翻译: 一种用于字体构建的方法和系统,其通过提供从服务器在客户端设备下载字形子集。 子集可以包括一个或多个特定请求的字形。 该子集伴随着由选择标准确定的一个或多个另外的字形,其可以包括:使用特定语言中的字形的频率; 由至少一个客户端设备使用字形的频率; 和特定字形之间的关系。