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1. 发明申请

WO2005094397A2 TONE EVENT DETECTOR AND METHOD THEREFOR 审中-公开
标题翻译：音调事件检测器及其方法
公开(公告)号：WO2005094397A2
公开(公告)日：2005-10-13
申请号：PCT/US2005/001777
申请日：2005-01-21
申请人： FREESCALE SEMICONDUCTOR, INC. , PESSOA, Lucio F. C. , AZIZ, Ahsan U. , SU, Wen Wu
发明人： PESSOA, Lucio F. C. , AZIZ, Ahsan U. , SU, Wen Wu
IPC分类号： H04M3/00 , H04M5/00
CPC分类号： H04Q1/457 , H04M11/066
摘要： In one embodiment, a tone event detector (18) first determines whether the presence of a tone is indicated on the input signal, and then, based on this determination, selectively determines whether a tone has been detected on the input signal. For example, in one embodiment, tone detection is performed only when the presence of a tone is first indicated, such that if the presence of a tone is not indicated, tone detection need not be performed. This may help reduce complexity of a tone event detector since a simplified method may be used to indicate the presence of a tone, and the more complex algorithms for tone detection may be enabled only when needed. Also, in one embodiment, detection of a tone includes generating one or more tone characteristics corresponding to the detected tone which may then be used to determine whether the detected tone corresponds to a valid tone event.
摘要翻译：在一个实施例中，音调事件检测器（18）首先确定在输入信号上是否指示音调的存在，然后基于该确定，选择性地确定是否在输入信号上检测到音调。例如，在一个实施例中，仅当首先指示音调的存在时才执行音调检测，使得如果没有指示音调的存在，则不需要执行音调检测。这可能有助于降低音调事件检测器的复杂性，因为可以使用简化的方法来指示音调的存在，并且可以仅在需要时才启用用于音调检测的更复杂的算法。此外，在一个实施例中，音调的检测包括产生与检测到的音调相对应的一个或多个音调特性，然后可以使用它们来确定检测到的音调是否对应于有效音调事件。

2. 发明公开

EP1726153A2 TONE EVENT DETECTOR AND METHOD THEREFOR 审中-公开
标题翻译：音调事件检测器及其方法
公开(公告)号：EP1726153A2
公开(公告)日：2006-11-29
申请号：EP05705936.2
申请日：2005-01-21
申请人： Freescale Semiconductor, Inc.
发明人： PESSOA, Lucio F. C. , AZIZ, Ahsan U. , SU, Wen Wu
IPC分类号： H04M3/00
CPC分类号： H04Q1/457 , H04M11/066
摘要： In one embodiment, a tone event detector (18) first determines whether the presence of a tone is indicated on the input signal, and then, based on this determination, selectively determines whether a tone has been detected on the input signal. For example, in one embodiment, tone detection is performed only when the presence of a tone is first indicated, such that if the presence of a tone is not indicated, tone detection need not be performed. This may help reduce complexity of a tone event detector since a simplified method may be used to indicate the presence of a tone, and the more complex algorithms for tone detection may be enabled only when needed. Also, in one embodiment, detection of a tone includes generating one or more tone characteristics corresponding to the detected tone which may then be used to determine whether the detected tone corresponds to a valid tone event.
摘要翻译：在一个实施例中，音调事件检测器（18）首先确定是否在输入信号上指示存在音调，然后基于该确定选择性地确定在输入信号上是否检测到音调。例如，在一个实施例中，仅当首先指示存在音调时才执行音调检测，使得如果未指示存在音调，则不需要执行音调检测。这可以帮助降低音调事件检测器的复杂度，因为可以使用简化的方法来指示音调的存在，并且用于音调检测的更复杂的算法可以仅在需要时启用。而且，在一个实施例中，对音调的检测包括生成对应于所检测到的音调的一个或多个音调特性，其然后可以用于确定检测到的音调是否对应于有效音调事件。

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