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1. 发明申请

US20110068867A1 SYSTEM AND METHOD FOR INTERPOLATING DIGITALLY-CONTROLLED AMPLIFIER GAIN 有权
标题翻译：用于插入数字控制放大器增益的系统和方法
公开(公告)号：US20110068867A1
公开(公告)日：2011-03-24
申请号：US12857163
申请日：2010-08-16
申请人： Robert W. Moses , Leslie B. Tyler , Christoper Hanna
发明人： Robert W. Moses , Leslie B. Tyler , Christoper Hanna
IPC分类号： H03G3/20
CPC分类号： H03G1/0088 , H03G3/001
摘要： A digitally-controlled analog gain circuit supports a plurality of gain settings in which gain changes are made from a first setting to a new setting in response to a clocking signal. Large changes in gain are interpolated in small gain steps or increments. The clocking signal can be generated by an oscillator, or as a sequence of pulses output by a zero crossing detector. The gain circuit can apply positive gain to the signal. Alternatively, the gain circuit can apply a negative gain (attenuation) to the signal. The clocking signal can be provided in a pseudo-randomized manner to minimize unwanted signal effects such as discernable sound transients.
摘要翻译：数字控制的模拟增益电路支持多个增益设置，其中响应于时钟信号，增益从第一设置改变到新的设置。以小的增益步长或增量内插增益的大的变化。时钟信号可以由振荡器产生，或者作为由过零检测器输出的脉冲序列。增益电路可以对信号施加正增益。或者，增益电路可以对信号施加负增益（衰减）。可以以伪随机方式提供时钟信号以最小化不期望的信号效应，例如可识别的声音瞬态。

2. 发明授权

US08416019B2 System and method for interpolating digitally-controlled amplifier gain 有权
标题翻译：用于内插数字控制放大器增益的系统和方法
公开(公告)号：US08416019B2
公开(公告)日：2013-04-09
申请号：US12857163
申请日：2010-08-16
申请人： Robert W. Moses , Leslie B. Tyler , Christopher Hanna
发明人： Robert W. Moses , Leslie B. Tyler , Christopher Hanna
IPC分类号： H03G3/20
CPC分类号： H03G1/0088 , H03G3/001
摘要： A digitally-controlled analog gain circuit supports a plurality of gain settings in which gain changes are made from a first setting to a new setting in response to a clocking signal. Large changes in gain are interpolated in small gain steps or increments. The clocking signal can be generated by an oscillator, or as a sequence of pulses output by a zero crossing detector. The gain circuit can apply positive gain to the signal. Alternatively, the gain circuit can apply a negative gain (attenuation) to the signal. The clocking signal can be provided in a pseudo-randomized manner to minimize unwanted signal effects such as discernable sound transients.
摘要翻译：数字控制的模拟增益电路支持多个增益设置，其中响应于时钟信号，增益从第一设置改变到新的设置。以小的增益步长或增量内插增益的大的变化。时钟信号可以由振荡器产生，或者作为由过零检测器输出的脉冲序列。增益电路可以对信号施加正增益。或者，增益电路可以对信号施加负增益（衰减）。可以以伪随机方式提供时钟信号以最小化不期望的信号效应，例如可识别的声音瞬态。

3. 发明授权

US4182993A Signal amplitude compression system 失效
标题翻译：信号幅度压缩系统
公开(公告)号：US4182993A
公开(公告)日：1980-01-08
申请号：US957307
申请日：1978-11-02
申请人： Leslie B. Tyler
发明人： Leslie B. Tyler
IPC分类号： H03G7/00 , H03G3/10
CPC分类号： H03G7/002
摘要： A system for compressing an electrical input signal so that the output signal is related to the input signal in accordance with a predetermined continuous gain function exhibiting (1) fixed gain where the input signal is below a predetermined set threshold level; (2) infinite compression limiting the output to some predetermined level so that as the input increases beyond a certain input level infinite compression is provided; and (3) a soft threshold between unity gain and infinite compression. The system includes a threshold level adjustment which automatically provides a gain adjustment so that the maximum output level (preferably on an RMS basis) remains unchanged with changes in the threshold level.
摘要翻译：一种用于压缩电输入信号的系统，使得输出信号根据预定的连续增益函数与输入信号相关，该预定连续增益函数表现出（1）固定增益，其中输入信号低于预定设定的阈值电平; （2）无限压缩将输出限制在某一预定水平，使得当输入增加超过某一输入电平时，提供无限压缩; 和（3）单位增益和无限压缩之间的软阈值。该系统包括阈值电平调节，其自动提供增益调整，使得最大输出电平（优选地基于RMS）随着阈值电平的变化而保持不变。

4. 发明授权

US4316060A Equalizing system 失效
标题翻译：均衡系统
公开(公告)号：US4316060A
公开(公告)日：1982-02-16
申请号：US109487
申请日：1980-01-04
申请人： Robert W. Adams , Leslie B. Tyler
发明人： Robert W. Adams , Leslie B. Tyler
IPC分类号： H03G5/16 , H03H11/04 , H04R3/04 , H03J5/24
CPC分类号： H03G5/165 , H04R3/04
摘要： An improved equalizing system for modifying an input electrical signal representative of original sound so as to correct for the inherent nonflat frequency response of an audio signal processing apparatus and the acoustic effects of listening environment in which the loudspeaker system of the audio signal processing apparatus may be disposed. The improved equalizing system includes a comparator for comparing the signal energy in each of a plurality of select frequency bands of a predetermined frequency range of the input signal with that of the corresponding signal energy in a like plurality of bands of a like range of a second signal representative of the acoustic output of the loudspeaker system and as a function of the nonflat frequency response and the acoustic effects of the environment. A correction signal representative of the comparison is used to modify the energy within each band of the input signal so as to substantially correct for the nonflat response and the acoustic effects of the environment. In the preferred embodiment, a unique filter arrangement is provided for simultaneously reducing the interaction between adjacent bands and the amount of ripple at the output of the equalizing system.
摘要翻译：一种改进的均衡系统，用于修改表示原始声音的输入电信号，以便校正音频信号处理装置的固有非平坦频率响应以及音频信号处理装置的扬声器系统可能在其中的听音环境的声音效应处置。改进的均衡系统包括比较器，用于将输入信号的预定频率范围的多个选择频带中的每一个中的信号能量与对应的信号能量的信号能量相似的多个频带范围的第二表示扬声器系统的声输出的信号，并且作为非平坦频率响应和环境的声学效应的函数。代表比较的校正信号用于修改输入信号的每个频带内的能量，以便基本上校正环境的非平坦响应和声音效应。在优选实施例中，提供了一种唯一的滤波器装置，用于同时减少相邻频带之间的相互作用和均衡系统输出端的纹波量。

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