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21. 发明申请

WO2008115888A1 METHOD AND DEVICE FOR GENERATING TRIANGULAR WAVES 审中-公开
标题翻译：用于产生三角波的方法和装置
公开(公告)号：WO2008115888A1
公开(公告)日：2008-09-25
申请号：PCT/US2008/057269
申请日：2008-03-17
申请人： QUALCOMM Incorporated , MOLLOY, Stephen , DEVALAPALLI, Suresh , KAMATH, Nidish Ramachandra
发明人： MOLLOY, Stephen , DEVALAPALLI, Suresh , KAMATH, Nidish Ramachandra
IPC分类号： G10H7/12
CPC分类号： G10H7/12 , G10H2210/205 , G10H2210/211
摘要： This disclosure describes techniques for generating a set of data points that form a triangular wave having a desired gain and a desired frequency. In one example, the method includes the step of (a) determining an increment value based on the desired frequency and the desired gain of the triangular wave. The method further includes the step of (b) adding the increment value to a current data point to generate a next data point, the current data point and the next data point forming a subset of the set of data points. The method further includes the step of iteratively performing (a) and (b) to generate the set of data points that form the triangular wave.
摘要翻译：本公开描述了用于生成形成具有期望增益和期望频率的三角波的一组数据点的技术。在一个示例中，该方法包括以下步骤：（a）基于期望频率和三角波的期望增益来确定增量值。该方法还包括以下步骤：（b）将增量值加到当前数据点以产生下一个数据点，当前数据点和下一个数据点，形成该组数据点的子集。该方法还包括迭代执行（a）和（b）以产生形成三角波的数据点集合的步骤。

22. 发明申请

WO1998011532A1 WAVETABLE SYNTHESIZER AND OPERATING METHOD USING A VARIABLE SAMPLING RATE APPROXIMATION 审中-公开
标题翻译：可变合成器和使用可变采样速率近似的操作方法
公开(公告)号：WO1998011532A1
公开(公告)日：1998-03-19
申请号：PCT/US1997016140
申请日：1997-09-10
申请人： CIRRUS LOGIC, INC.
发明人： CIRRUS LOGIC, INC. , JENKINS, Michael
IPC分类号： G10H07/02
CPC分类号： G10H1/125 , G10H7/02 , G10H2210/205 , G10H2210/281 , G10H2210/305 , G10H2240/056 , G10H2240/145 , G10H2250/061 , G10H2250/105 , G10H2250/121
摘要： A variable sample rate approximation technique is used for coding and recreating musical signals in a wavetable synthesizer. Many sounds inherently include one large fast transfer of energy followed by vibrations that dampen over time so that the bandwidth requirement of a musical sound is reduced with passing time. Using the variable sample rate approximation technique, musical sounds are classified into two categories, sustaining sounds and percussive sounds. A sustaining instrument creates a noisy stimulus then sustains the sound created by the noisy stimulus. A percussive instrument is also a noisy source and generates a sound signal having high frequencies that decay rapidly while sustaining instruments sustain at all frequencies nearly equally. The sustaining and percussive instruments have substantially different waveform characteristics but present similar conditions with respect to memory reduction. Similarities between the acoustical characteristics of sustaining sounds and percussive sounds are exploited using a variable sampling rate technique to substantially reduce the memory budget of a wavetable synthesizer.
摘要翻译：可变采样率近似技术用于在波形合成器中编码和再现音乐信号。许多声音固有地包括一个大的快速的能量传递，随后随着时间的推移而衰减的振动，使得音乐声音的带宽需求随着时间的流逝而减少。使用可变采样率近似技术，音乐声音分为两类，维持声音和打击乐。持续的工具产生嘈杂的刺激，然后维持由嘈杂的刺激产生的声音。打击乐器也是噪音源，并产生具有高频衰减的声音信号，同时维持仪器在所有频率下几乎保持平等。持续和打击乐器具有基本上不同的波形特性，但在存储器减少方面存在相似的条件。使用可变采样率技术来利用持续声音和打击乐声音的声学特性之间的相似性，以显着降低波形合成器的存储器预算。

23. 发明授权

US08492639B2 Audio processing apparatus and method 有权
标题翻译：音频处理装置及方法
公开(公告)号：US08492639B2
公开(公告)日：2013-07-23
申请号：US12960310
申请日：2010-12-03
申请人： Keijiro Saino
发明人： Keijiro Saino
IPC分类号： G10H1/02 , G10H7/00
CPC分类号： G10H1/053 , G10H1/0008 , G10H1/0091 , G10H1/0575 , G10H3/125 , G10H7/008 , G10H2210/066 , G10H2210/205 , G10H2210/211 , G10H2250/551 , G10H2250/621
摘要： Phase setting section sets virtual phases in a frequency series of an audio signal. Unit wave extraction section extracts, from the frequency series, a unit wave of one cyclic period defined by the set virtual phases, for each of a plurality of time points. First generation section generates velocity information corresponding to a degree of compression/expansion, to a predetermined length, of the unit wave. Second generation section generates shape information indicative of a shape of a frequency spectrum of the unit wave having been adjusted. Variation component impartment section generates a variation component by use of the velocity information and shape information generated for the individual time points.
摘要翻译：相位设置部分设置音频信号的频率系列中的虚拟相位。单位波提取部分从频率序列中提取针对多个时间点中的每一个的由所设定的虚拟相位定义的一个循环周期的单位波。第一代部分产生与单位波的预定长度相对应的速度信息。第二代部生成表示已经调整的单位波的频谱的形状的形状信息。变化分量公开部分通过使用针对各个时间点生成的速度信息和形状信息来生成变化分量。

24. 发明申请

US20080229920A1 METHOD AND DEVICE FOR GENERATING TRIANGULAR WAVES 失效
标题翻译：用于产生三角波的方法和装置
公开(公告)号：US20080229920A1
公开(公告)日：2008-09-25
申请号：US12042190
申请日：2008-03-04
申请人： Stephen Molloy , Suresh Devalapalli , Nidish Ramachandra Kamath
发明人： Stephen Molloy , Suresh Devalapalli , Nidish Ramachandra Kamath
IPC分类号： G10H7/00
CPC分类号： G10H7/12 , G10H2210/205 , G10H2210/211
摘要： This disclosure describes techniques for generating a set of data points that form a triangular wave having a desired gain and a desired frequency. In one example, the method includes the step of (a) determining an increment value based on the desired frequency and the desired gain of the triangular wave. The method further includes the step of (b) adding the increment value to a current data point to generate a next data point, the current data point and the next data point forming a subset of the set of data points. The method further includes the step of iteratively performing (a) and (b) to generate the set of data points that form the triangular wave.
摘要翻译：本公开描述了用于生成形成具有期望增益和期望频率的三角波的数据点集合的技术。在一个示例中，该方法包括以下步骤：（a）基于期望频率和三角波的期望增益来确定增量值。该方法还包括以下步骤：（b）将增量值添加到当前数据点以产生下一个数据点，当前数据点和下一个数据点，形成该组数据点的子集。该方法还包括迭代执行（a）和（b）以产生形成三角波的数据点集合的步骤。

25. 发明授权

US5744739A Wavetable synthesizer and operating method using a variable sampling rate approximation 失效
标题翻译：波形合成器和使用可变采样率近似的操作方法
公开(公告)号：US5744739A
公开(公告)日：1998-04-28
申请号：US713341
申请日：1996-09-13
申请人： Michael V. Jenkins
发明人： Michael V. Jenkins
IPC分类号： G10H1/12 , G10H7/02 , G10H7/00
CPC分类号： G10H1/125 , G10H7/02 , G10H2210/205 , G10H2210/281 , G10H2210/305 , G10H2240/056 , G10H2240/145 , G10H2250/061 , G10H2250/105 , G10H2250/121
摘要： A variable sample rate approximation technique is used for coding and recreating musical signals in a wavetable synthesizer. Many sounds inherently include one large fast transfer of energy followed by vibrations that dampen over time so that the bandwidth requirement of a musical sound is reduced with passing time. Using the variable sample rate approximation technique, musical sounds are classified into two categories, sustaining sounds and percussive sounds. A sustaining instrument creates a noisy stimulus then sustains the sound created by the noisy stimulus. A percussive instrument is also a noisy source and generates a sound signal having high frequencies that decay rapidly while sustaining instruments sustain at all frequencies nearly equally. The sustaining and percussive instruments have substantially different waveform characteristics but present similar conditions with respect to memory reduction. Similarities between the acoustical characteristics of sustaining sounds and percussive sounds are exploited using a variable sampling rate technique to substantially reduce the memory budget of a wavetable synthesizer.
摘要翻译：可变采样率近似技术用于在波形合成器中编码和再现音乐信号。许多声音固有地包括一个大的快速的能量传递，随后随着时间的推移而衰减的振动，使得音乐声音的带宽需求随着时间的流逝而减少。使用可变采样率近似技术，音乐声音分为两类，维持声音和打击乐。持续的工具产生嘈杂的刺激，然后维持由嘈杂的刺激产生的声音。打击乐器也是噪音源，并产生具有高频衰减的声音信号，同时维持仪器在所有频率下几乎保持平均。持续和打击乐器具有基本上不同的波形特性，但在存储器减少方面存在相似的条件。使用可变采样率技术来利用维持声音和打击乐声音的声学特性之间的相似性，以显着降低波形合成器的存储器预算。

26. 发明授权

US5698805A Tone signal generator for producing multioperator tone signals 失效
标题翻译：音频信号发生器，用于产生多音色音信号
公开(公告)号：US5698805A
公开(公告)日：1997-12-16
申请号：US528031
申请日：1995-09-14
申请人： Charles D. Thompson , Salvador R. Bernadas , Michael V. Jenkins
发明人： Charles D. Thompson , Salvador R. Bernadas , Michael V. Jenkins
IPC分类号： G10H1/04 , G10H1/057 , G10H1/06 , G10H7/02 , G10H1/08 , G10H1/14 , G10H1/18
CPC分类号： G10H1/04 , G10H1/057 , G10H1/06 , G10H7/02 , G10H2210/205 , G10H2210/211 , G10H2210/295 , G10H2230/321 , G10H2250/621 , G10H2250/631
摘要： The present invention relates to a tone signal generator. The tone signal generator includes first tone signal generation means for producing a dual-tone, multi-frequency ("DTMF") audio signal; second tone signal means for producing a plurality of non-DTMF audio signals; storage means for storing data that represents at least one channel of an output audio tone signal; and selection means for selectively loading the DTMF signal into the storage means and for selectively accumulating the non-DTMF signals into the storage means so as to generate the output tone signal.
摘要翻译：本发明涉及一种音调信号发生器。音调信号发生器包括用于产生双音多频（“DTMF”）音频信号的第一音调信号产生装置; 第二音频信号装置，用于产生多个非DTMF音频信号; 存储装置，用于存储表示输出音频音频信号的至少一个通道的数据; 以及选择装置，用于选择性地将DTMF信号加载到存储装置中并用于选择性地将非DTMF信号累加到存储装置中，以便产生输出音调信号。

27. 发明授权

US5243124A Electronic musical instrument using FM sound generation with delayed modulation effect 失效
标题翻译：电子乐器采用FM声音发生延迟调制效果
公开(公告)号：US5243124A
公开(公告)日：1993-09-07
申请号：US854080
申请日：1992-03-19
申请人： Clifford Kondratiuk , Karim Mitha
发明人： Clifford Kondratiuk , Karim Mitha
IPC分类号： G10H1/057 , G10H7/04 , G10H7/12 , H03C1/00
CPC分类号： G10H7/04 , G10H1/057 , G10H7/12 , G10H2210/205 , G10H2210/211 , G10H2210/331 , H03C1/00
摘要： A computer having one or more wave tables stored therein is used to synthesize sounds represented by a series of digital samples produced at a sample rate by specifying parameters including a carrier frequency, a modulating frequency and an index of modulation. At each sample time, a modulation value determined during an immediately preceding sample time is scaled to produce a digital control signal. Also at each sample time the modulation value to be used during an immediately succeeding sample time is read from a location of a wave table determined by the modulating frequency, and a carrier value used to produce the digital samples is read from a location of a wave table determined by the carrier frequency and the digital control signal. Modulation effects are therefore delayed by one sample in order to speed execution of the method using the computer. Phase accumulation is performed using a multiplier making it unnecessary to store the sum of all of the previous steps as would be otherwise be required using an additive approach.
摘要翻译：使用存储有一个或多个波形表的计算机，通过指定包括载波频率，调制频率和调制指数的参数来合成由采样率产生的一系列数字样本所代表的声音。在每个采样时间，在紧接在前的采样时间之间确定的调制值被缩放以产生数字控制信号。同样在每个采样时刻，从由调制频率确定的波形表的位置读取在紧随其后的采样时间中要使用的调制值，并且从波的位置读取用于产生数字采样的载波值表由载波频率和数字控制信号决定。因此，调制效应被延迟一个样本，以便加速使用计算机的方法的执行。使用乘法器执行相位累加，使得不需要使用加法方法存储所有先前步骤的总和。

28. 发明授权

US3778525A Electronic musical instrument with phase shift tremulant system 失效
标题翻译：电子音乐仪器与相位移动系统
公开(公告)号：US3778525A
公开(公告)日：1973-12-11
申请号：US3778525D
申请日：1972-04-17
申请人： WARWICK ELECTRONICS INC
发明人： CHASE W , PLUNKETT B
IPC分类号： G10H1/043 , G10H1/04
CPC分类号： G10H1/043 , G10H2210/205 , G10H2210/211 , G10H2210/215 , Y10S84/01
摘要： A tremulant circuit includes cascaded phase shifting networks in right and left amplifying channels of an electronic organ. An oscillator and associated circuitry produce offset signals of different wave shape which energize lamps associated with light responsive impedances in the phase shifting networks in the right and left channels. A switching circuit interconnects the phase shifting networks in different configurations to adapt the tremulant effect to a selected organ voice in order to produce the most pleasing and realistic acoustical output.
摘要翻译：颤振电路包括电子机器的左右放大通道中的级联相移网络。振荡器和相关电路产生不同波形形状的偏移信号，该偏移信号激励与右声道和左声道中的相移网络中的光响应阻抗相关联的灯。开关电路将相移网络以不同的配置相互连接，以将颤振效应调整到所选择的器官声音，以产生最令人愉快且逼真的声输出。

29. 发明授权

US3083606A Electrical music system 失效
标题翻译：电音乐系统
公开(公告)号：US3083606A
公开(公告)日：1963-04-02
申请号：US79642459
申请日：1959-03-02
申请人： BONHAM DON L
发明人： BONHAM DON L
IPC分类号： G10H1/00 , G10H1/043
CPC分类号： G10H1/0091 , G10H1/043 , G10H2210/205 , Y10S84/04 , Y10S84/27

30. 发明专利

NO801774A 未知
公开(公告)号：NO801774A
公开(公告)日：1980-12-16
申请号：NO801774
申请日：1980-06-13
申请人： DEFOREIT CHRISTIAN J
发明人： DEFOREIT JACQUES CHRISTIAN
IPC分类号： G10H7/02 , G10H7/08 , G10H
CPC分类号： G10H7/08 , G10H2210/205 , G10H2250/161

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