会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • HYBRID ACTUATOR, LOUDSPEAKER AND SOUND OUTPUT METHOD
    • 混合执行器,扬声器和声音输出方法
    • US20090208039A1
    • 2009-08-20
    • US12294077
    • 2007-05-18
    • Nobukazu SuzukiMasaru UryuYoshio Ohashi
    • Nobukazu SuzukiMasaru UryuYoshio Ohashi
    • H04R15/00H02N2/04
    • H04R23/02H01L41/12
    • A hybrid actuator (100A) includes a magnetostrictive actuator (110) having a magnetostrictive element (111), and a moving-coil actuator (130) including a movable portion (132) having an outer periphery to which voice coils (131a), (131b) are attached. The actuator (110) is fixed to the movable portion (132) of the actuator (130) so that the direction of displacement output of a drive rod (113) becomes the same as the displacement direction of this movable portion. Since the actuator (110) is fixed to the movable portion (132) of the actuator (130), together with a displacement output in response to a high-frequency-range audio signal, which is obtained by the actuator (110), a displacement output in response to a low-frequency-range audio signal, which is obtained by the actuator (130), is also obtained at a tip of the drive rod (113). By abutting the tip of the drive rod (113) against an acoustic diaphragm, a wide band audio output can be obtained.
    • 混合致动器(100A)包括具有磁致伸缩元件(111)的磁致伸缩致动器(110)和包括具有外周的可动部分(132)的运动线圈致动器(130),所述可动部分具有音圈(131a),( 131b)。 致动器(110)固定到致动器(130)的可动部分(132),使得驱动杆(113)的位移输出方向与该可动部分的位移方向相同。 由于致动器(110)被固定到致动器(130)的可动部分(132),与响应由致动器(110)获得的高频范围音频信号的位移输出一起, 响应于由致动器(130)获得的低频范围音频信号的位移输出也在驱动杆(113)的尖端处获得。 通过将驱动杆(113)的尖端抵靠声膜,可获得宽带音频输出。
    • 7. 发明授权
    • Digital signal processing device and digital signal processing method
    • 数字信号处理装置和数字信号处理方法
    • US07068196B2
    • 2006-06-27
    • US10489947
    • 2003-07-29
    • Masayoshi NoguchiGen IchimuraNobukazu Suzuki
    • Masayoshi NoguchiGen IchimuraNobukazu Suzuki
    • H03M3/00
    • H03M7/3011H03M7/3028H03M7/304
    • An apparatus for processing a digital signal that generates a one-bit output signal using a delta-sigma modulation apparatus, which includes a quantizer for quantizing an integrated output of a sixth integrator to generate a one-bit output signal that is send to respective integrators through an adder under feedback processing to output the one-bit output signal to the outside of a six-order Delta-sigma modulator, and a control unit for generating a control signal that controls the feedback loop signal from the quantizer so as to change the signal level of a signal component of the audio frequency band of the one-bit output signal. The control unit receives an integrated output from a second integrator being an input side integrator of the six-order delta-sigma modulator.
    • 一种用于处理使用delta-sigma调制装置产生1比特输出信号的数字信号的装置,该装置包括用于量化第六积分器的积分输出的量化器,以产生发送给相应积分器的1比特输出信号 通过反馈处理的加法器将一位输出信号输出到六阶Delta-sigma调制器的外部;以及控制单元,用于产生控制信号,该控制信号控制来自量化器的反馈回路信号,以便改变 1位输出信号的音频频带的信号分量的信号电平。 控制单元从作为六阶Δ-Σ调制器的输入侧积分器的第二积分器接收积分输出。
    • 8. 发明申请
    • Delta-sigma modulator and delta-sigma modulation method
    • Δ-Σ调制器和Δ-Σ调制方法
    • US20050285765A1
    • 2005-12-29
    • US11151359
    • 2005-06-14
    • Nobukazu SuzukiGen IchimuraMasayoshi Noguchi
    • Nobukazu SuzukiGen IchimuraMasayoshi Noguchi
    • H03M3/00H03M3/02
    • H03M3/36H03M3/43H03M3/45H03M3/454H03M7/3011H03M7/3028H03M7/3033H03M7/304
    • A delta-sigma modulator and delta-sigma modulation method according to the present invention are capable of ensuring a stable 1-bit signal having less distortion at the transition time from an audio signal reproduction state to soundless state while maintaining high sound quality during reproduction of an audio signal representing music or the like, and, at the same time, capable of maintaining high sound quality at the transition time from a soundless state to audio signal reproduction state. The delta-sigma modulator applies delta-sigma modulation to an input signal to output a 1-bit digital signal, and comprises an integration section that applies integration to the input signal, a quantization section that quantizes the integrated output from the integration section, a random noise generation section that generates a random noise signal whose gain has been adjusted based on the integrated output of the integration section, a detection section that detects a predetermined pattern from the input signal, and a changeover section that switches supply and suspension of supply of the random noise signal from the random noise generation section to the quantization section based on a detection result of the detection section.
    • 根据本发明的Δ-Σ调制器和Δ-Σ调制方法能够确保在从音频信号再现状态到无声状态的转变时间具有较小失真的稳定的1比特信号,同时在再现期间保持高音质 表示音乐等的音频信号,并且同时能够在从无声状态到音频信号再现状态的转变时保持高音质。 Δ-Σ调制器对输入信号施加Δ-Σ调制以输出1位数字信号,并且包括对输入信号进行积分的积分部分,对来自积分部分的积分输出进行量化的量化部分, 随机噪声生成部,其生成基于积分部的积分输出调整了增益的随机噪声信号;检测部,其根据所述输入信号检测出规定的图案;以及切换部,切换供给和停止供给 基于检测部的检测结果,从随机噪声生成部到量化部的随机噪声信号。