Scalable audio coding
    1.
    发明授权
    Scalable audio coding 失效
    可扩展音频编码

    公开(公告)号:US07921007B2

    公开(公告)日:2011-04-05

    申请号:US11573570

    申请日:2005-07-25

    摘要: The invention relates to an audio encoder and decoder and methods for audio encoding and decoding. In a preferred encoder embodiment an audio signal is encoded by deterministic encoder means to form a first encoded signal part. A spectrum of the audio signal is determined and represented by an excitation pattern, i.e. spectral values corresponding to human auditory filters, as a second encoded signal part. A masking curve is also extracted based on the excitation pattern, thus improving encoding efficiency in terms of bit rate. In a preferred decoder the first encoded signal part is decoded by deterministic decoder means. A noise generator uses the decoded first signal part together with the second signal part, i.e. the excitation pattern for the original audio signal, to generate a noise signal. The noise signal is then added to the first decoded signal part to form an output audio signal. At the decoder side the masking curve is also extracted based on the second encoded signal part, i.e. the excitation pattern. The noise signal is generated so that the output audio signal exhibits an excitation pattern nearly identical to the original audio signal. Thus, a perceived high quality audio is obtained while the encoded signal is scalable since a possible deviation between encoding and decoding of the first signal part is compensated by the noise generator at the decoder side. In preferred embodiments the coding means comprises a sinusoidal coder.

    摘要翻译: 本发明涉及音频编码器和解码器以及用于音频编码和解码的方法。 在优选的编码器实施例中,音频信号由确定性编码器装置编码以形成第一编码信号部分。 作为第二编码信号部分,由激励模式(即对应于人类听觉滤波器的频谱值)确定和表示音频信号的频谱。 还基于激励模式提取掩蔽曲线,从而提高了比特率方面的编码效率。 在优选的解码器中,第一编码信号部分由确定性解码器装置解码。 噪声发生器使用解码的第一信号部分与第二信号部分,即原始音频信号的激励模式一起产生噪声信号。 然后将噪声信号添加到第一解码信号部分以形成输出音频信号。 在解码器侧,也基于第二编码信号部分即激励图案提取掩蔽曲线。 产生噪声信号,使得输出音频信号呈现与原始音频信号几乎相同的激励图案。 因此,在编码信号是可缩放的情况下获得感知的高质量音频,因为第一信号部分的编码和解码之间的可能偏差由解码器侧的噪声发生器补偿。 在优选实施例中,编码装置包括正弦编码器。

    Combined audio coding minimizing perceptual distortion
    2.
    发明授权
    Combined audio coding minimizing perceptual distortion 有权
    组合音频编码最小化感知失真

    公开(公告)号:US07788090B2

    公开(公告)日:2010-08-31

    申请号:US11575149

    申请日:2005-09-02

    IPC分类号: G10L19/00 G10L19/02

    CPC分类号: G10L19/002 G10L19/22

    摘要: An audio encoder in which two or more preferably different encoders cooperate to generate a joint encoded audio signal. Encoding parameters of the two or more encoders are optimized in response to a measure of distortion of the joint encoded audio signal in accordance with a predetermined criterion. The distortion. measure is preferably a perceptual distortion measure. In one encoder embodiment comprising a sinusoidal and a waveform encoder, a constant total bit rate for each audio frame is distributed between the two encoders so as to minimize perceptual distortion for both the first and the second encoder. Other embodiments consider a set of encoding parameters that is larger than only those that minimize the perceptual distortion of the first encoder. In some embodiments, perceptual distortion may be minimized by optimizing encoding via optimizing entire encoding templates, i.e. a complex set of encoding parameters, for the separate encoders. The separate encoders may either be cascaded or operate in parallel, or in a combination of these. Two or more audio segments are preferably taken into account in the optimizing procedure. A corresponding audio decoder comprises separate decoders corresponding to the separate encoders of the audio encoder that encoded the audio signal. Decoded signal parts from these decoders are then added to produce the final audio signal. The presented audio encoding is efficient and provides a high sound quality because the encoding scheme is flexible and adapts to specific demands for each audio excerpt.

    摘要翻译: 一种音频编码器,其中两个或更多个优选地不同的编码器协作以产生联合编码的音频信号。 响应于根据预定标准对联合编码音频信号的失真的测量,优化两个或更多个编码器的编码参数。 失真。 度量优选是感知失真度量。 在包括正弦曲线和波形编码器的一个编码器实施例中,每个音频帧的恒定总比特率分布在两个编码器之间,以便最小化第一和第二编码器的感知失真。 其他实施例考虑一组编码参数,其大于仅使最小化第一编码器的感知失真的编码参数。 在一些实施例中,可以通过优化编码,通过优化整个编码模板(即编码参数的复杂集合)来分离编码器来最小化感知失真。 单独的编码器可以级联或并联操作,也可以组合使用。 在优化过程中优选考虑两个或多个音频段。 对应的音频解码器包括对应于编码音频信号的音频编码器的分离编码器的单独的解码器。 然后添加来自这些解码器的解码信号部分以产生最终音频信号。 所呈现的音频编码是有效的并且提供高音质,因为编码方案是灵活的并且适应于每个音频片段的特定需求。

    Breast pump for expressing milk from a breast
    3.
    发明授权
    Breast pump for expressing milk from a breast 有权
    用于从乳房表达牛奶的乳房泵

    公开(公告)号:US08376986B2

    公开(公告)日:2013-02-19

    申请号:US12808690

    申请日:2008-12-12

    IPC分类号: A61M1/06

    摘要: Breast pump for expressing milk from a breast, comprising at least one breast cup (2) for receiving a breast, a pumping system (10) in fluid connection (11) with the at least one breast cup (2) for applying a negative pressure on said breast and a detection unit (3) comprising at least one sensor for measuring a parameter during use of the breast pump (1), wherein the breast pump (1) is adapted for optimising breast pump settings by actively controlling at least one breast pump pumping property, based on measurements of the at least one sensor (4, 5), during a period of use of the breast pump (1), in order to personalize operation of said breast pump (1) for a particular user.

    摘要翻译: 用于从乳房表达牛奶的母乳泵,包括至少一个用于接收乳房的乳房杯(2),与所述至少一个乳杯(2)流体连接(11)的泵送系统(10),用于施加负压 在所述乳房和所述检测单元(3)上,所述检测单元(3)包括至少一个用于在使用所述吸乳器(1)期间测量参数的传感器,其中所述吸乳器(1)适于通过主动控制至少一个乳房来优化吸奶器设置 在抽吸泵(1)的使用期间,基于所述至少一个传感器(4,5)的测量值来泵送特性,以便为特定用户个性化所述吸奶器(1)的操作。

    BREAST PUMP FOR EXPRESSING MILK FROM A BREAST
    4.
    发明申请
    BREAST PUMP FOR EXPRESSING MILK FROM A BREAST 有权
    用于从乳腺表达乳汁的乳汁泵

    公开(公告)号:US20110004154A1

    公开(公告)日:2011-01-06

    申请号:US12808690

    申请日:2008-12-12

    IPC分类号: A61M1/06

    摘要: Breast pump for expressing milk from a breast, comprising at least one breast cup (2) for receiving a breast, a pumping system (10) in fluid connection (11) with the at least one breast cup (2) for applying a negative pressure on said breast and a detection unit (3) comprising at least one sensor for measuring a parameter during use of the breast pump (1), wherein the breast pump (1) is adapted for optimising breast pump settings by actively controlling at least one breast pump pumping property, based on measurements of the at least one sensor (4, 5), during a period of use of the breast pump (1), in order to personalise operation of said breast pump (1) for a particular user.

    摘要翻译: 用于从乳房表达牛奶的母乳泵,包括至少一个用于接收乳房的乳房杯(2),与所述至少一个乳杯(2)流体连接(11)的泵送系统(10),用于施加负压 在所述乳房和所述检测单元(3)上,所述检测单元(3)包括至少一个用于在使用所述吸乳器(1)期间测量参数的传感器,其中所述吸乳器(1)适于通过主动控制至少一个乳房来优化吸奶器设置 在抽吸泵(1)的使用期间,基于所述至少一个传感器(4,5)的测量值来泵送特性,以便为特定用户个性化所述吸奶器(1)的操作。

    AMBIENCE RENDERING CONTROL SYSTEM
    6.
    发明申请
    AMBIENCE RENDERING CONTROL SYSTEM 审中-公开
    环境渲染控制系统

    公开(公告)号:US20140039684A1

    公开(公告)日:2014-02-06

    申请号:US14111303

    申请日:2012-04-10

    IPC分类号: G05B11/01 G05B13/02

    摘要: The present invention relates to a method of operating an ambience control system (10) comprising an ambience rendering system (14) configured to adapt the ambience in an area (16) so as to establish a current ambience state, a data storage (12) comprising data relating to occurrence of events and ambience states, each of the events being associated with a specific ambience state, and a processor configured to determine estimated time to next event based on the data relating to occurrence of events, provided that the next event relates to an ambience state different from the current ambience state the ambience rendering system (14) (10) being configured to gradually adapt the ambience in the area (16) to match the next ambient state, the method comprising determining current ambience state, determining estimated time to next event, and operating the area (16) ambience system (10) based on the estimated time to next event. The present invention further relates to an ambience control system (10) comprising a data storage (12) comprising data relating to occurrence of events and ambience states, the events being associated with a specific ambience state, an ambience rendering system (14) configured to adapt the ambience in an area (16) corresponding to the specific ambience state, a processor configured to determine estimated time to next event based on the data relating to occurrence of event, provided that the next event relates to an ambience state being different from the current ambience state the area ambience system being configured to gradually adapt the ambience in the area (16) to match the next ambient state.

    摘要翻译: 本发明涉及一种操作环境控制系统(10)的方法,该环境控制系统(10)包括环境渲染系统(14),其被配置成在区域(16)中调整环境以便建立当前环境状态,数据存储器(12) 包括与事件和环境状态的发生相关的数据,每个事件与特定的环境状态相关联,以及处理器,被配置为基于与事件的发生有关的数据来确定对下一个事件的估计时间,只要下一个事件相关 环境渲染系统(14)(10)被配置为逐渐调整区域(16)中的氛围以匹配下一环境状态,该方法包括确定当前环境状态,确定估计的当前环境状态 时间到下一个事件,以及基于预计到下一个事件的时间来操作区域(16)环境系统(10)。 本发明还涉及一种环境控制系统(10),其包括数据存储器(12),其包括与事件和环境状态的发生相关的数据,所述事件与特定的环境状态相关联,环境渲染系统(14)被配置为 在与特定氛围状态相对应的区域(16)中适应环境,处理器被配置为基于与事件发生相关的数据来确定对下一事件的估计时间,只要下一个事件与不同于 当前氛围状态区域环境系统被配置为逐渐适应区域(16)中的氛围以匹配下一环境状态。

    FRAGRANCE DISPENSER
    7.
    发明申请
    FRAGRANCE DISPENSER 审中-公开
    芳香分配器

    公开(公告)号:US20100309434A1

    公开(公告)日:2010-12-09

    申请号:US12867274

    申请日:2009-02-09

    IPC分类号: G03B21/32

    CPC分类号: A61L9/035 A61L9/125

    摘要: A device for delivering a scent to a user comprises a body component, a fluid reservoir, an output component arranged to connect the fluid reservoir to the exterior of the device, and a control component arranged to receive biofeedback data and user preference data on the user, and to control the output from the fluid reservoir accordingly. The device can further comprise a sensor arranged to monitor a physiological parameter of the user and to communicate the biofeedback data to the control component. The device may also include a wireless receiver arranged to receive the user preference data and/or the biofeedback data and to communicate the data to the control component.

    摘要翻译: 用于向用户传送气味的装置包括主体部件,流体储存器,布置成将流体储存器连接到装置的外部的输出部件,以及布置成在用户上接收生物反馈数据和用户偏好数据的控制部件 并且相应地控制来自流体存储器的输出。 该装置还可以包括传感器,该传感器布置成监视用户的生理参数并将生物反馈数据传送到控制部件。 设备还可以包括布置成接收用户偏好数据和/或生物反馈数据并将数据传送到控制组件的无线接收器。

    EFFICIENT AUDIO CODING USING SIGNAL PROPERTIES
    8.
    发明申请
    EFFICIENT AUDIO CODING USING SIGNAL PROPERTIES 审中-公开
    使用信号特性的高效音频编码

    公开(公告)号:US20090063158A1

    公开(公告)日:2009-03-05

    申请号:US11718242

    申请日:2005-11-02

    IPC分类号: G10L19/00

    CPC分类号: G10L19/18

    摘要: An audio encoder comprising optimizing means ET OPT adapted to generate an optimized encoding template OET based on properties PV of an input audio signal IN, such as in form of a property vector. The optimized encoding template OET is being optimized with respect to a predetermined encoding efficiency criterion. Encoding means ENC then generates an encoded audio signal OUT in accordance with the optimized encoding template OET. The audio encoder may comprise analyzing means AN adapted to generate the set of input signal properties PV based of the input signal IN. In a preferred embodiment the optimizing means ET OPT is adapted to estimate a resulting distortion associated with an encoding template. The optimizing means ET OPT may further be able to estimate bit rate associated with an encoding template. In one embodiment the optimizing means ET OPT is adapted to optimize a bit rate distribution to a number of sub-encoders based on the input signal properties (PV). In another embodiment, the optimizing means ET OPT is adapted to up-front decide on an adaptive segmentation based on the input signal properties (PV). The encoders according to the invention are advantageous in that complex processes of a plurality of encodings prior to deciding upon an optimized encoding template OET can be avoided since the optimal encoding template OET is found based on input signal properties (PV).

    摘要翻译: 一种音频编码器,包括优化装置ET OPT,其适于基于输入音频信号IN的属性PV(例如以属性向量的形式)生成优化的编码模板OET。 优化的编码模板OET正在针对预定的编码效率标准进行优化。 编码意味着ENC根据优化的编码模板OET生成编码音频信号OUT。 音频编码器可以包括适于基于输入信号IN产生一组输入信号特性PV的分析装置AN。 在优选实施例中,优化装置ET OPT适于估计与编码模板相关联的结果失真。 优化装置ET OPT还可以能够估计与编码模板相关联的比特率。 在一个实施例中,优化装置ET OPT适于基于输入信号特性(PV)来优化对多个子编码器的比特率分布。 在另一个实施例中,优化装置ET OPT适于根据输入信号特性(PV)预先决定自适应分段。 根据本发明的编码器是有利的,因为可以避免在决定优化的编码模板OET之前的多个编码的复杂过程,因为基于输入信号属性(PV)找到最佳编码模板OET。