专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09258428B2 Audio bandwidth extension for conferencing 有权
标题翻译：用于会议的音频带宽扩展
公开(公告)号：US09258428B2
公开(公告)日：2016-02-09
申请号：US13718204
申请日：2012-12-18
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： G06F17/00 , H04M3/56 , G10L19/00 , G10L21/038 , H04R27/00
CPC分类号： H04M3/568 , G10L21/038 , H04R27/00
摘要： In one embodiment, a method includes extracting, by a processor, components from an audio signal to generate a modulating signal. The audio signal is generated by an endpoint operable to capture audio proximate the endpoint. The method also includes filtering, by the processor, the audio signal to generate a band-limited audio signal. The method also includes modulating, by the processor, the band-limited audio signal by the modulating signal to generate an enhancement signal. The method also includes combining, by the processor, the audio signal and the enhancement signal to generate an enhanced audio signal.
摘要翻译：在一个实施例中，一种方法包括由处理器从音频信号提取组件以产生调制信号。音频信号由端点产生，该端点可操作以捕获靠近端点的音频。该方法还包括由处理器对音频信号进行滤波以产生带限音频信号。该方法还包括由处理器通过调制信号调制带限音频信号以产生增强信号。该方法还包括由处理器组合音频信号和增强信号以产生增强的音频信号。

2. 发明申请

US20130034245A1 SPEAKERPHONE USING ADAPTIVE PHASE ROTATION 审中-公开
公开(公告)号：US20130034245A1
公开(公告)日：2013-02-07
申请号：US13571750
申请日：2012-08-10
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： H04R1/40
CPC分类号： H04R3/00 , H04R2201/107 , H04R2430/01 , H04R2499/11
摘要： An improved speakerphone for a cellular telephone, portable telephone handset, or the like. In one embodiment, a receiver provides an audio signal, and a first phase-shifter phase-shifts the audio signal by a first phase-shift amount. A second phase-shifter phase-shifts the audio signal by a second phase-shift amount and drives a loudspeaker. A detector generates average and peak values of the first phase-shifted audio signal. A processor sets the first phase-shift amount to each one of a plurality of phase-shift amounts and calculates a corresponding average-to-peak ratio value from the peak and average values. The processor then selects one of the plurality of phase-shift amounts having a corresponding average-to-peak ratio value that meets at least one criteria (e.g., the largest one of the average-to-peak ratio values), and then sets the second phase-shift amount to be the same as the selected phase-shift amount. This enhances the perceived loudness of sound from loudspeaker.

3. 发明申请

US20140169542A1 Audio Bandwidth Extension for Conferencing 有权
标题翻译：音频带宽扩展用于会议
公开(公告)号：US20140169542A1
公开(公告)日：2014-06-19
申请号：US13718204
申请日：2012-12-18
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： H04M3/56
CPC分类号： H04M3/568 , G10L21/038 , H04R27/00
摘要： In one embodiment, a method includes extracting, by a processor, components from an audio signal to generate a modulating signal. The audio signal is generated by an endpoint operable to capture audio proximate the endpoint. The method also includes filtering, by the processor, the audio signal to generate a band-limited audio signal. The method also includes modulating, by the processor, the band-limited audio signal by the modulating signal to generate an enhancement signal. The method also includes combining, by the processor, the audio signal and the enhancement signal to generate an enhanced audio signal.
摘要翻译：在一个实施例中，一种方法包括由处理器从音频信号提取组件以产生调制信号。音频信号由端点产生，该端点可操作以捕获靠近端点的音频。该方法还包括由处理器对音频信号进行滤波以产生带限音频信号。该方法还包括由处理器通过调制信号调制带限音频信号以产生增强信号。该方法还包括由处理器组合音频信号和增强信号以产生增强的音频信号。

4. 发明授权

US08275151B2 Speakerphone using adaptive phase rotation 失效
标题翻译：扬声器使用自适应相位旋转
公开(公告)号：US08275151B2
公开(公告)日：2012-09-25
申请号：US11959923
申请日：2007-12-19
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： H04R1/40
CPC分类号： H04R3/00 , H04R2201/107 , H04R2430/01 , H04R2499/11
摘要： An improved speakerphone for a cellular telephone, portable telephone handset, or the like. In one embodiment, a receiver provides an audio signal, and a first phase-shifter phase-shifts the audio signal by a first phase-shift amount. A second phase-shifter phase-shifts the audio signal by a second phase-shift amount and drives a loudspeaker. A processor sets the first phase-shift amount to each one of a plurality of phase-shift amounts and determines a corresponding average-to-peak ratio value of the first phase-shifted audio signal. The processor then selects one of the plurality of phase-shift amounts having a corresponding average-to-peak ratio value that meets at least one criteria (e.g., the largest one of the average-to-peak ratio values), and then sets the second phase-shift amount to be the same as the selected phase-shift amount. This enhances the perceived loudness of sound from loudspeaker.
摘要翻译：用于蜂窝电话，便携式电话听筒等的改进的免提电话机。在一个实施例中，接收机提供音频信号，并且第一移相器将音频信号相移第一相移量。第二移相器将音频信号相移第二相移量并驱动扬声器。 A处理器将第一相移量设置为多个相移量中的每一个，并确定第一相移音频信号的对应的平均峰值比值。然后，处理器选择具有满足至少一个标准（例如，平均 - 峰值比值的最大值）的对应的平均 - 峰值比值的多个相移量中的一个，然后将第二相移量与所选择的相移量相同。这增强了来自扬声器的声音响度。

5. 发明申请

US20090161904A1 SPEAKERPHONE USING ADAPTIVE PHASE ROTATION 失效
标题翻译：使用自适应相位旋转的扬声器
公开(公告)号：US20090161904A1
公开(公告)日：2009-06-25
申请号：US11959923
申请日：2007-12-19
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： H04R1/00
CPC分类号： H04R3/00 , H04R2201/107 , H04R2430/01 , H04R2499/11
摘要： An improved speakerphone for a cellular telephone, portable telephone handset, or the like. In one embodiment, a receiver provides an audio signal, and a first phase-shifter phase-shifts the audio signal by a first phase-shift amount. A second phase-shifter phase-shifts the audio signal by a second phase-shift amount and drives a loudspeaker. A detector generates average and peak values of the first phase-shifted audio signal. A processor sets the first phase-shift amount to each one of a plurality of phase-shift amounts and calculates a corresponding average-to-peak ratio value from the peak and average values. The processor then selects one of the plurality of phase-shift amounts having a corresponding average-to-peak ratio value that meets at least one criteria (e.g., the largest one of the average-to-peak ratio values), and then sets the second phase-shift amount to be the same as the selected phase-shift amount. This enhances the perceived loudness of sound from loudspeaker.
摘要翻译：用于蜂窝电话，便携式电话听筒等的改进的免提电话机。在一个实施例中，接收机提供音频信号，并且第一移相器将音频信号相移第一相移量。第二移相器将音频信号相移第二相移量并驱动扬声器。检测器产生第一相移音频信号的平均值和峰值。 A处理器将第一相移量设置为多个相移量中的每一个，并根据峰值和平均值计算相应的平均峰值比值。然后，处理器选择具有满足至少一个标准（例如，平均 - 峰值比值的最大值）的对应的平均 - 峰值比值的多个相移量中的一个，然后将第二相移量与所选择的相移量相同。这增强了来自扬声器的声音响度。

6. 发明申请

US20070124658A1 Acs apparatus and method for viterbi decoder 审中-公开
标题翻译：用于维特比解码器的Acs设备和方法
公开(公告)号：US20070124658A1
公开(公告)日：2007-05-31
申请号：US10555077
申请日：2004-04-27
申请人： Marcello Caramma
发明人： Marcello Caramma
IPC分类号： H03M13/03
CPC分类号： H03M13/3922 , H03M13/4107
摘要： The circuit (10) performs a butterfly calculation for a Viterbi trellis by using two path metrics and a branch metric to generate two new path metrics. The new metrics are produced by adders (12) and (14) whose inputs are controlled by selectors (16-22). The outputs of the selectors (16-22) are controlled by selection control unit (24) which considers the difference between the given path metrics relative to the double of the branch metric, which represents a branch metric difference.
摘要翻译：电路（10）通过使用两个路径度量和分支量度来生成两个新的路径量度来执行维特比网格的蝶形计算。新指标由加法器（12）和（14）生成，其输入由选择器（16-22）控制。选择器（16-22）的输出由选择控制单元（24）来控制，该选择控制单元考虑相对于支路度量的两倍的给定路径度量之间的差异，其表示分支量度差。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式