Method and system for masking speech
    71.
    发明授权
    Method and system for masking speech 有权
    用于掩蔽语音的方法和系统

    公开(公告)号:US07505898B2

    公开(公告)日:2009-03-17

    申请号:US11456806

    申请日:2006-07-11

    IPC分类号: G10L21/00 H04K1/00

    摘要: A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained. The speech signal is then temporally partitioned into segments, preferably corresponding to phonemes within the speech stream. The segments are then stored in a memory, and some or all of the segments are subsequently selected, retrieved, and assembled into an obfuscated speech signal representing an unintelligible speech stream that, when combined with the speech signal or reproduced and combined with the speech stream, provides a masking effect. While the presently preferred embodiment finds application most readily in an open plan office, embodiments suitable for use in restaurants, classrooms, and in telecommunications systems are also disclosed.

    摘要翻译: 公开了一种用于产生可用于掩蔽语音流的混淆语音信号的简单有效的方法。 获得表示待屏蔽的语音流的语音信号。 语音信号然后在时间上划分成段,优选地对应于语音流内的音素。 然后将段存储在存储器中,并且随后选择,检索和组合部分或全部段,以组合成表示无法理解的语音流的模糊化语音信号,当与语音信号组合或再现并与语音流组合时 ,提供掩蔽效果。 虽然目前优选的实施例在开放式办公室中最容易应用,但是也公开了适用于餐馆,教室和电信系统中的实施例。

    Self-Powered Mobile Electrical Power Hub
    73.
    发明申请
    Self-Powered Mobile Electrical Power Hub 有权
    自供电移动电力枢纽

    公开(公告)号:US20080246355A1

    公开(公告)日:2008-10-09

    申请号:US11697489

    申请日:2007-04-06

    IPC分类号: H02K47/20

    CPC分类号: H02J7/1415 H02J7/1438

    摘要: Self-powered mobile electrical power hubs are provided. In one embodiment, a self-powered electrical power hub comprises an internal combustion engine driven generator that provides electrical power and at least one electrically powered transport driver configured to facilitate movement of the self-powered mobile electrical power hub. The self-powered mobile electrical power hub further comprises an accessible power hub that provides external access to electrical power, wherein a substantial portion of the electrical power from the internal combustion engine driven generator is provided to power the at least one electrically powered transport driver in a transport mode and a substantial portion of the electrical power from the internal combustion engine driven generator is available at the accessible power hub in an idle mode.

    摘要翻译: 提供自供电的移动电力集线器。 在一个实施例中,自供电电力轮毂包括提供电力的内燃机驱动发电机和被配置为便于自供电移动电力集线器移动的至少一个电动运输驱动器。 自供电的移动电力集线器还包括提供对电力的外部接入的可访问的电力集线器,其中提供来自内燃机驱动的发电机的大部分电力来为至少一个电动的运输驱动器 来自内燃机驱动的发电机的运输模式和大部分电力在空闲模式下在可访问的电力集线器处可用。