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    • 2. 发明申请
    • CASE FOR PROVIDING IMPROVED AUDIO PERFORMANCE IN PORTABLE GAME CONSOLES AND OTHER DEVICES
    • 在便携式游戏中提供改进的音频性能的案例和其他设备
    • WO2011031989A2
    • 2011-03-17
    • PCT/US2010048456
    • 2010-09-10
    • NAT SEMICONDUCTOR CORPLI YUNHONGMA WEINICHOLSON GUY K
    • LI YUNHONGMA WEINICHOLSON GUY K
    • A63F13/08A63F13/02
    • H04S7/30H04R1/403H04R3/12H04R2499/11H04S2400/11
    • A system includes a portable electronic device (102) and a case (104, 204, 400, 500) configured to be placed in association with the portable electronic device. The case includes an interface (412, 512) configured to receive audio signals from the portable electronic device and a speaker array (108, 208, 408, 508) configured to generate audible sounds having one or more specified audio effects based on the audio signals. The case could also include an audio amplifier (106, 406, 506) configured to amplify the audio signals and to provide the amplified audio signals to the speaker array. The audio amplifier could include a filter (410) configured to filter the audio signals in order to produce the one or more specified audio effects. The case could further include a processor (505) configured to (i) process the audio signals in order to produce the one or more specified audio effects and (ii) output the processed audio signals to the audio amplifier.
    • 一种系统包括便携式电子设备(102)和被配置为与便携式电子设备相关联地放置的壳体(104,204,400,500)。 壳体包括被配置为从便携式电子设备接收音频信号的接口(412,512)和配置成基于音频信号产生具有一个或多个指定音频效果的可听声音的扬声器阵列(108,208,408,508) 。 该情况还可以包括配置成放大音频信号并将放大的音频信号提供给扬声器阵列的音频放大器(106,406,506)。 音频放大器可以包括被配置为过滤音频信号以便产生一个或多个指定的音频效果的滤波器(410)。 该情况还可以包括:处理器(505),其被配置为(i)处理音频信号以便产生一个或多个指定的音频效果,以及(ii)将经处理的音频信号输出到音频放大器。
    • 3. 发明申请
    • BEAM FORMING IN SPATIALIZED AUDIO SOUND SYSTEMS USING DISTRIBUTED ARRAY FILTERS
    • 用分布式阵列滤波器在空间音频声音系统中的束成形
    • WO2011028891A3
    • 2011-08-04
    • PCT/US2010047658
    • 2010-09-02
    • NAT SEMICONDUCTOR CORPMA WEILI YUNHONGBAHAI AHMAD
    • MA WEILI YUNHONGBAHAI AHMAD
    • H04R5/02H04R3/00
    • H04R5/02
    • A system includes multiple speakers (108, 108a-108n, 206, 212, 214, 810, 1028, 1202, 1302, 1402, 1502, 1602, 1702) arranged in a speaker array configuration. The system also includes one or more filters (504, 604, 704, 1022, 1120) configured to filter audio signals and generate filtered audio signals. The one or more filters are configured to operate using filter coefficients associated with a desired beam pattern to be produced by the multiple speakers. The system further includes at least one amplifier (102a-102n, 508, 608a-608b, 708a-708d, 904, 1026) configured to amplify the filtered audio signals and provide the amplified filtered audio signals to the speakers. The one or more filters reside within or are coupled to the at least one amplifier. The system may further include a controller (506, 606, 706, 902, 1014) configured to modify at least one of the filter coefficients based on a change in the speaker configuration. The filters may operate independently of a centralized processor, and a centralized processor may not even be required to provide electronic beam forming.
    • 系统包括以扬声器阵列配置布置的多个扬声器(108,108a-108n,206,212,214,810,1028,1202,1302,1402,1502,1602,1702)。 该系统还包括一个或多个滤波器(504,604,704,1022,1120),其被配置为对音频信号进行滤波并生成经滤波的音频信号。 一个或多个滤波器被配置为使用与由多个扬声器产生的期望波束图案相关联的滤波器系数进行操作。 该系统还包括至少一个放大器(102a-102n,508,608a-608b,708a-708d,904,1026),其被配置为放大滤波后的音频信号并将放大后的滤波后的音频信号提供给扬声器。 该一个或多个滤波器驻留在该至少一个放大器内或耦合到该至少一个放大器。 该系统还可以包括控制器(506,606,706,902,1014),其被配置为基于扬声器配置中的改变来修改滤波器系数中的至少一个。 滤波器可以独立于集中式处理器运行,并且甚至不需要集中式处理器来提供电子波束形成。