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1. 发明授权

US06405230B1 Digital filter 失效
标题翻译：数字滤波器
公开(公告)号：US06405230B1
公开(公告)日：2002-06-11
申请号：US09285402
申请日：1999-04-02
申请人： David Charles William Richards , John William Richards , Paul Anthony Frindle
发明人： David Charles William Richards , John William Richards , Paul Anthony Frindle
IPC分类号： G06F1710
CPC分类号： H03H17/04
摘要： A method of generating filter coefficients to provide a desired nth order filter response comprises adding one or more substantially co-located pole and zero pairs to form an (n+m)th order filter having the desired nth order filter response.
摘要翻译：产生滤波器系数以提供期望的第n阶滤波器响应的方法包括添加一个或多个基本上共位的极点和零对以形成具有期望的第n阶滤波器响应的（n + m）阶滤波器。

2. 发明授权

US5677962A Hybrid analog and digital amplifier with a delayed step change in the digital gain 失效
标题翻译：混合模拟和数字放大器具有数字增益的延迟阶跃变化
公开(公告)号：US5677962A
公开(公告)日：1997-10-14
申请号：US588442
申请日：1996-01-18
申请人： Simon Irving Harrison , Paul Anthony Frindle
发明人： Simon Irving Harrison , Paul Anthony Frindle
IPC分类号： H03F1/00 , H03F3/181 , H03G3/00 , H03G3/02
CPC分类号： H03G3/001
摘要： An amplifier comprises a variable gain analog amplifier for amplifying an input analog signal to generate an intermediate analog signal, the gain of the analog amplifier being switchable between two or more discrete gain values. An analog to digital converter converts the intermediate analog signal into a corresponding intermediate digital signal and a variable gain digital amplifier amplifies the intermediate digital signal. A gain control circuit, responsive to a required gain, selects one of the discrete gain values of the analog amplifier and a gain value of the digital amplifier so that the sum of the selected gain values is substantially equal to the required gain; and whether the required gain is increasing or decreasing is detected. If the required gain is decreasing, a delay circuit delays, by a predetermined period longer than a gain switching period of the analog amplifier, a step change in the gain value of the digital amplifier when the gain control circuit changes the selected discrete gain value for the analog amplifier. This can avoid subjectively disturbing transient boosts in the overall system gain when the analog amplifier's gain is switched.
摘要翻译：放大器包括可变增益模拟放大器，用于放大输入模拟信号以产生中间模拟信号，模拟放大器的增益可在两个或多个离散增益值之间切换。模数转换器将中间模拟信号转换为对应的中间数字信号，可变增益数字放大器放大中间数字信号。响应于所需增益的增益控制电路选择模拟放大器的离散增益值之一和数字放大器的增益值，使得所选增益值的和基本上等于所需增益; 并检测所需增益是否增加或减少。如果所需的增益减小，延迟电路在比模拟放大器的增益切换周期长的预定周期内延迟数字放大器的增益值的阶跃变化，当增益控制电路改变所选择的离散增益值时模拟放大器。当模拟放大器的增益切换时，这可以避免主体扰动的整体系统增益瞬态提升。

3. 发明授权

US07369906B2 Digital audio signal processing 有权
标题翻译：数字音频信号处理
公开(公告)号：US07369906B2
公开(公告)日：2008-05-06
申请号：US10108913
申请日：2002-03-28
申请人： Paul Anthony Frindle
发明人： Paul Anthony Frindle
IPC分类号： G06F17/00 , H03G3/00
CPC分类号： H03G9/005 , H03G7/007 , H03G9/025
摘要： A digital audio processor comprises at least one digital audio sample mapping module and produces a sequence of output digital audio sample values by applying a quasi time-invariant transfer function to each input digital audio sample value, the transfer function being arranged so that a ratio of root mean square signal level to peak signal magnitude is lower for the input digital audio signal than for a corresponding portion of the output digital audio signal.
摘要翻译：数字音频处理器包括至少一个数字音频样本映射模块，并通过对每个输入数字音频采样值应用准时不变传递函数来产生输出数字音频采样值序列，传递函数被布置为使得输入数字音频信号的均方根信号电平与峰值信号幅度相比，低于输出数字音频信号的对应部分。

4. 发明授权

US6061458A Audio mixing console 失效
标题翻译：音频调音台
公开(公告)号：US6061458A
公开(公告)日：2000-05-09
申请号：US649055
申请日：1996-05-16
申请人： John William East , Simon Irving Harrison , Paul Anthony Frindle , William Edmund Cranstoun Kentish
发明人： John William East , Simon Irving Harrison , Paul Anthony Frindle , William Edmund Cranstoun Kentish
IPC分类号： H03G5/02 , H03G3/02 , H04H60/04 , H04B1/00
CPC分类号： H04H60/04
摘要： An audio mixing console provides for a selected group of channels to be assigned to a bank of channel controls for a channel function (e.g., a solo mode) with a global function indicator for indicating that the predetermined channel function has been selected for at least one channel. A global function cancel button for canceling the channel function in all channels is provided. Various solo modes can be selected. A logic button includes a button member moveable between a raised position and a depressed position, a switch contact open in the raised position and closed in the depressed position and a logical latch (e.g., software-implemented) responsive to a first closing of the switch on a first depression of the button to change from an inactive state to an active state and to a second opening of the switch on a second release of the button to change from the active state to the inactive state. An automation mode controller is operable, in a first pass, to store on-going switch timing at which the user operable control is switched from off to on and off-going switch timings at which the switch is switched from on to off for automatically reproducing the control switchings in a subsequent pass.
摘要翻译：音频混合控制台提供要被分配给用于信道功能（例如，独奏模式）的信道控制组的所选择的信道组，其具有用于指示已经针对至少一个选择了预定信道功能的全局功能指示符渠道。提供了一个用于消除所有通道中的通道功能的全局功能取消按钮。可以选择各种独奏模式。逻辑按钮包括可在升高位置和踩下位置之间移动的按钮构件，在升高位置中打开并且在按压位置闭合的开关触点和响应于开关的第一关闭的逻辑锁存器（例如，软件实现的）在按钮的第一次按下从按钮的第二释放状态切换到非活动状态时，从非活动状态切换到活动状态，并切换到开关的第二开口。自动化模式控制器在第一遍中可操作地存储用户可操作控制从开关切换到开启状态的开关定时，以及开关从开关切换到关闭以进行自动再现的断开开关定时控制切换后续通过。

5. 发明授权

US5923768A Digital audio processing 失效
标题翻译：数字音频处理
公开(公告)号：US5923768A
公开(公告)日：1999-07-13
申请号：US806250
申请日：1997-02-21
申请人： Paul Anthony Frindle , Peter Charles Eastty
发明人： Paul Anthony Frindle , Peter Charles Eastty
IPC分类号： G10L21/02 , H03G7/00 , H03M7/30
CPC分类号： H03G7/007
摘要： Digital audio processing apparatus for applying a time-varying gain to an input digital audio signal over contiguous first, second and third time periods, in which: the applied gain changes at no more than a first maximum rate of change during the first time period; the applied gain changes at no more than a second maximum rate of change during the third time period; and during the second time period the rate of change of the applied gain varies monotonically from a substantially zero rate of change towards the second maximum rate of change.
摘要翻译：数字音频处理装置，用于在连续的第一，第二和第三时间周期上对输入数字音频信号施加时变增益，其中：所施加的增益在第一时间段内不超过第一最大变化率; 所施加的增益在第三时间段内变化不超过第二最大变化率; 并且在第二时间段期间，所施加的增益的变化率从基本上零的变化率朝向第二最大变化率单调地变化。

6. 发明授权

US5880718A Capacitive touch detection 失效
公开(公告)号：US5880718A
公开(公告)日：1999-03-09
申请号：US520565
申请日：1995-08-28
申请人： Paul Anthony Frindle , John W. East , Simon Irving Harrison
发明人： Paul Anthony Frindle , John W. East , Simon Irving Harrison
IPC分类号： G01R27/26 , H03K17/96 , H04H60/04 , G09G5/00
CPC分类号： H04H60/04 , H03K17/962 , H03K17/9622
摘要： A capacitive touch detection system, which can be used to inhibit motorized faders in an audio mixing system, includes touch detection circuits each having a respective conductive area for touch determination by detection of increased capacitance at the conductive area. The touch detection circuits are operable during predetermined active periods initiated by a clock generator which activates a pulse generator to produce an enable pulse EP1 for one detection circuit. The trailing edge of that enable pulse EP1 generates a non-overlapping enable pulse EP2 for the next detection circuit, and the process continues so that no more than one detection circuit is active at any time. This minimizes interaction between detection circuits if more than one conductive area is touched simultaneously.

7. 发明授权

US5784015A Signal processing apparatus and method with a clock signal generator for generating first and second clock signals having respective frequencies harmonically related to a sampling frequency 失效
标题翻译：具有时钟信号发生器的信号处理装置和方法，用于产生具有与采样频率谐波相关的各个频率的第一和第二时钟信号
公开(公告)号：US5784015A
公开(公告)日：1998-07-21
申请号：US928076
申请日：1997-09-11
申请人： Paul Anthony Frindle
发明人： Paul Anthony Frindle
IPC分类号： H04H60/04 , H03M1/06
CPC分类号： H04H60/04
摘要： Signal processing apparatus comprises at least one digital signal processing device mounted on a circuit board, for performing sample-based signal processing at a sampling frequency; and a switched mode power supply mounted on the circuit board, the switched mode power supply operating at a switching frequency derived from the sampling frequency of the digital signal processing device.
摘要翻译：信号处理装置包括安装在电路板上的至少一个数字信号处理装置，用于以采样频率执行基于采样的信号处理; 以及安装在所述电路板上的开关模式电源，所述开关模式电源以根据所述数字信号处理装置的采样频率导出的开关频率工作。

8. 发明授权

US6094491A Capacitive touch detection 失效
标题翻译：电容触摸检测
公开(公告)号：US6094491A
公开(公告)日：2000-07-25
申请号：US13852
申请日：1998-01-27
申请人： Paul Anthony Frindle , John William East , Simon Irving Harrison
发明人： Paul Anthony Frindle , John William East , Simon Irving Harrison
IPC分类号： G01R27/26 , H03K17/96 , H04H60/04 , H04B1/00
CPC分类号： H04H60/04 , H03K17/962 , H03K17/9622
摘要： A capacitive touch detection system, which can be used to inhibit motorized faders in an audio mixing system, includes touch detection circuits each having a respective conductive area for touch determination by detection of increased capacitance at the conductive area. The touch detection circuits are operable during predetermined active periods initiated by a clock generator which activates a pulse generator to produce an enable pulse EP1 for one detection circuit. The trailing edge of that enable pulse EP1 generates a non-overlapping enable pulse EP2 for the next detection circuit, and the process continues so that no more than one detection circuit is active at any time. This minimizes interaction between detection circuits if more than one conductive area is touched simultaneously.
摘要翻译：可以用于抑制音频混合系统中的电动推子的电容式触摸检测系统包括触摸检测电路，每个触摸检测电路具有用于通过检测导电区域上的增加的电容来进行触摸确定的相应导电区域。触摸检测电路可在由时钟发生器启动的预定有效周期期间操作，时钟发生器激活脉冲发生器以产生用于一个检测电路的使能脉冲EP1。该使能脉冲EP1的后沿为下一个检测电路产生不重叠的使能脉冲EP2，并且该过程继续，使得在任何时间不超过一个检测电路处于活动状态。如果同时触摸多于一个导电区域，则可以最小化检测电路之间的相互作用。

9. 发明授权

US5940521A Audio mixing console 失效
标题翻译：音频调音台
公开(公告)号：US5940521A
公开(公告)日：1999-08-17
申请号：US649054
申请日：1996-05-16
申请人： John William East , Simon Irving Harrison , Paul Anthony Frindle , Tetsuya Konishi
发明人： John William East , Simon Irving Harrison , Paul Anthony Frindle , Tetsuya Konishi
IPC分类号： G06F3/023 , H04H60/04 , H04B1/00
CPC分类号： H04H60/04
摘要： An audio mixing console includes user controls which can be dynamically allocated to respective processing channels enabling a compact audio mixing console to be provided with full functionality, but with only a relatively small number of user operable controls including allocatable channel faders and allocatable audio signal processing control knobs and buttons, etc. Individual control values for the user operable control can be updated, maintained and retained for each of the processing channels which can be allocated to the individual user operable controls. Also, a single processing channel can be allocated to a user operable control on two sub-panels of the control panel and the user operable controls on both sub-panels can be used separately to control the processing within that channel. The resulting changes in the user operable control "positions" are displayed as a result of the dual control of a processing function within a processing channel by respective user operable controls on the respective sub-panels.
摘要翻译：音频混合控制台包括可以动态分配给相应处理通道的用户控制，使紧凑型音频混合控制台能够具有全部功能，但仅具有相对较少数量的用户可操作的控制，包括可分配的通道推子和可分配的音频信号处理控制旋钮和按钮等。用户可操作控制的各个控制值可以被更新，维护和保留用于可分配给各个用户可操作控制的每个处理通道。此外，单个处理通道可以被分配给控制面板的两个子面板上的用户可操作控制，并且可以单独使用两个子面板上的用户可操作控制来控制该通道内的处理。作为用户可操作的控制“位置”的所得到的改变是通过在相应的子面板上的各个用户可操作的控制来对处理通道内的处理功能进行双重控制的结果来显示的。

10. 发明授权

US5930375A Audio mixing console 失效
标题翻译：音频调音台
公开(公告)号：US5930375A
公开(公告)日：1999-07-27
申请号：US649008
申请日：1996-05-16
申请人： John William East , Simon Irving Harrison , Paul Anthony Frindle , William Edmund Cranstoun Kentish
发明人： John William East , Simon Irving Harrison , Paul Anthony Frindle , William Edmund Cranstoun Kentish
IPC分类号： H03G5/02 , H03F3/181 , H03G3/02 , H04H60/04 , H04B1/00
CPC分类号： H04H60/04
摘要： An audio mixing console for processing a plurality of audio channels, in each of which a plurality of audio processing functions are to be performed, has a control panel including a plurality of input fields for selecting audio processing functions, displaying an audio processing function selected and indicating a selected order of audio processing functions for the audio processing channel stages. A stereo mode which can be selected at an input field links adjacent channels. Grouped side chain processes can be defined. A recording input matrix provides a track bounce facility for preserving a channel mix on re-recording a mix of previously recorded tracks. Values for cue faders can be loaded automatically from the main channel faders. Selectable delays can be provided at each processing stage to maintain channel alignment. Also, the chaining of analogue audio functions is provided.
摘要翻译：用于处理要执行多个音频处理功能的多个音频通道的音频混合控制台具有包括用于选择音频处理功能的多个输入字段的控制面板，显示所选择的音频处理功能，指示音频处理频道级的音频处理功能的选定顺序。可以在输入区域选择的立体声模式链接相邻通道。可以定义分组侧链过程。记录输入矩阵提供轨道反弹设施，用于在重新记录先前记录的轨道的混合物时保持通道混合。提示推子的值可以从主通道推子自动加载。可以在每个处理阶段提供可选择的延迟以维持信道对准。此外，提供了模拟音频功能的链接。

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