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1. 发明申请

US20080273644A1 SYNCHRONIZATION AND SEGMENT TYPE DETECTION METHOD FOR DATA TRANSMISSION VIA AN AUDIO COMMUNICATION SYSTEM 有权
标题翻译：通过音频通信系统进行数据传输的同步和分段类型检测方法
公开(公告)号：US20080273644A1
公开(公告)日：2008-11-06
申请号：US11744065
申请日：2007-05-03
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
IPC分类号： H04L25/38
CPC分类号： H04L7/08
摘要： A system and method for asynchronous data communication over a cellular communications network that allows the transmission of different types of data frames over a voice channel using a vocoder. The data frames include a synchronization signal and data segment, with the synchronization signal being selected in accordance with an attribute of the data segment so that, upon receipt of the data frame, the synchronization signal can be used by the demodulating modem to determine not only where the data segment begins, but also to identify what type of data segment is in the received data frame. The synchronization signals used have low cross-correlation and an auto-correlation function that approximates a unit impulse function to provide reliable transmission through the vocoder.
摘要翻译：一种通过蜂窝通信网络异步数据通信的系统和方法，其允许使用声码器通过语音信道传输不同类型的数据帧。数据帧包括同步信号和数据段，其中根据数据段的属性选择同步信号，使得在接收到数据帧时，解调调制解调器可以使用同步信号来确定其中数据段开始，而且还用于识别接收到的数据帧中的哪个类型的数据段。所使用的同步信号具有低互相关和自相关函数，其近似单位脉冲功能以通过声码器提供可靠的传输。

2. 发明申请

US20070258398A1 METHOD FOR DATA COMMUNICATION VIA A VOICE CHANNEL OF A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：无线通信网络语音通道数据通信方法
公开(公告)号：US20070258398A1
公开(公告)日：2007-11-08
申请号：US11554985
申请日：2006-10-31
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
IPC分类号： H04Q7/00
CPC分类号： H04L27/2608 , H04L27/2071 , H04L27/2075 , H04L27/2331 , H04L27/36
摘要： A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel using a vocoder that operates in different modes depending upon characteristics of the inputted signal it receives. To prepare the digital data for transmission, one or more carrier signals are encoded with the digital data using one of a number of modulation schemes that utilize differential phase shift keying to give the modulated carrier signal certain periodicity and energy characteristics that allow it to be transmitted by the vocoder at full rate. The modulation schemes include DPSK using either a single or multiple frequency carriers, combined FSK-DPSK modulation, combined ASK-DPSK, as well as PSK with a phase tracker in the demodulator. These modulation schemes permit data communication via a CDMA, GSM, or other type of voice traffic channel at a low bit error rate.
摘要翻译：一种用于通过蜂窝通信网络进行数据通信的系统和方法，其允许使用声码器通过语音信道传输数字数据，声码器根据其接收的输入信号的特性以不同的模式工作。为了准备用于发送的数字数据，使用利用差分相移键控的多个调制方案之一用数字数据对一个或多个载波信号进行编码，以给出调制的载波信号一定的周期性和允许其传输的能量特性由声码器以全速率。调制方案包括使用单个或多个频率载波的DPSK，组合的FSK-DPSK调制，组合ASK-DPSK以及在解调器中的相位跟踪器的PSK。这些调制方案允许通过CDMA，GSM或其他类型的语音业务信道以低误码率进行数据通信。

3. 发明申请

US20070092024A1 METHOD FOR DATA COMMUNICATION VIA A VOICE CHANNEL OF A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：无线通信网络语音通道数据通信方法
公开(公告)号：US20070092024A1
公开(公告)日：2007-04-26
申请号：US11163579
申请日：2005-10-24
申请人： Sethu Madhavan , Iqbal Surti , Jijun Yin
发明人： Sethu Madhavan , Iqbal Surti , Jijun Yin
IPC分类号： H04L27/10
CPC分类号： H04L27/2071 , H04L27/2331
摘要： A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel of the communications network. Digital data is encoded into DBPSK data using differential binary phase shift keying encoding. The DBPSK data is then sent across the cellular network using a vocoder having a linear predictive or other speech compression codec. At the receiving end, the DBPSK data is demodulated back into the original digital data. This approach permits data communication via a CDMA, GSM, or other type of voice traffic channel at a low bit error rate.
摘要翻译：一种通过蜂窝通信网络进行数据通信的系统和方法，其允许通过通信网络的语音信道传输数字数据。使用差分二进制相移键控编码将数字数据编码为DBPSK数据。然后，使用具有线性预测或其他语音压缩编解码器的声码器，通过蜂窝网络发送DBPSK数据。在接收端，将DBPSK数据解调回原来的数字数据。该方法允许通过CDMA，GSM或其他类型的语音业务信道以低误码率进行数据通信。

4. 发明授权

US07912149B2 Synchronization and segment type detection method for data transmission via an audio communication system 有权
标题翻译：通过音频通信系统进行数据传输的同步和片段类型检测方法
公开(公告)号：US07912149B2
公开(公告)日：2011-03-22
申请号：US11744065
申请日：2007-05-03
申请人： Elizabeth Chesnutt , Sethu K. Madhavan , Iqbal Surti , Jijin Yin
发明人： Elizabeth Chesnutt , Sethu K. Madhavan , Iqbal Surti , Jijin Yin
IPC分类号： H04L27/00
CPC分类号： H04L7/08
摘要： A system and method for asynchronous data communication over a cellular communications network that allows the transmission of different types of data frames over a voice channel using a vocoder. The data frames include a synchronization signal and data segment, with the synchronization signal being selected in accordance with an attribute of the data segment so that, upon receipt of the data frame, the synchronization signal can be used by the demodulating modem to determine not only where the data segment begins, but also to identify what type of data segment is in the received data frame. The synchronization signals used have low cross-correlation and an auto-correlation function that approximates a unit impulse function to provide reliable transmission through the vocoder.
摘要翻译：一种通过蜂窝通信网络异步数据通信的系统和方法，其允许使用声码器通过语音信道传输不同类型的数据帧。数据帧包括同步信号和数据段，其中根据数据段的属性选择同步信号，使得在接收到数据帧时，解调调制解调器可以使用同步信号来确定其中数据段开始，而且还用于识别接收到的数据帧中的哪个类型的数据段。所使用的同步信号具有低互相关和自相关函数，其近似单位脉冲功能以通过声码器提供可靠的传输。

5. 发明申请

US20080247484A1 METHOD FOR DATA COMMUNICATION VIA A VOICE CHANNEL OF A WIRELESS COMMUNICATION NETWORK USING CONTINUOUS SIGNAL MODULATION 有权
标题翻译：使用连续信号调制的无线通信网络的语音信道进行数据通信的方法
公开(公告)号：US20080247484A1
公开(公告)日：2008-10-09
申请号：US11696168
申请日：2007-04-03
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
IPC分类号： H03C5/00
CPC分类号： H03C5/00
摘要： A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel using a vocoder that monitors parameters of a Levinson Durbin recursion and then uses full rate CELP if the monitored prediction error falls to below a predetermined threshold within a pre-selected number of iterations of the recursion. The system and method encode digital data to be transmitted using a continuous signal modulation technique at a selected bit rate and one or more frequencies that are selected such that the resulting modulated carrier signal is processed by the vocoder using full rate CELP as a result of the monitored prediction error.
摘要翻译：一种用于通过蜂窝通信网络进行数据通信的系统和方法，其允许使用监视Levinson Durbin递归的参数的声码器通过语音信道传输数字数据，然后如果所监视的预测误差低于预定值，则使用全速率CELP 在递归的迭代的预选次数内的阈值。该系统和方法使用连续信号调制技术以所选位速率和一个或多个频率编码要发送的数字数据，这些频率被选择为使得所生成的调制载波信号由声码器使用全速率CELP作为结果监测预测误差。

6. 发明授权

US09048784B2 Method for data communication via a voice channel of a wireless communication network using continuous signal modulation 有权
标题翻译：通过使用连续信号调制的无线通信网络的语音信道进行数据通信的方法
公开(公告)号：US09048784B2
公开(公告)日：2015-06-02
申请号：US11696168
申请日：2007-04-03
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
IPC分类号： H04L27/06 , H03C5/00
CPC分类号： H03C5/00
摘要： A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel using a vocoder that monitors parameters of a Levinson Durbin recursion and then uses full rate CELP if the monitored prediction error falls to below a predetermined threshold within a pre-selected number of iterations of the recursion. The system and method encode digital data to be transmitted using a continuous signal modulation technique at a selected bit rate and one or more frequencies that are selected such that the resulting modulated carrier signal is processed by the vocoder using full rate CELP as a result of the monitored prediction error.
摘要翻译：一种用于通过蜂窝通信网络进行数据通信的系统和方法，其允许使用监视Levinson Durbin递归的参数的声码器通过语音信道传输数字数据，然后如果所监视的预测误差低于预定值，则使用全速率CELP 在递归的迭代的预选次数内的阈值。该系统和方法使用连续信号调制技术以所选位速率和一个或多个频率编码要发送的数字数据，这些频率被选择为使得所生成的调制载波信号由声码器使用全速率CELP作为结果监测预测误差。

7. 发明授权

US08194779B2 Method for data communication via a voice channel of a wireless communication network 有权
标题翻译：通过无线通信网络的语音信道进行数据通信的方法
公开(公告)号：US08194779B2
公开(公告)日：2012-06-05
申请号：US11554985
申请日：2006-10-31
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu Madhavan , Iqbal Surti
IPC分类号： H04L27/10 , H04L23/00
CPC分类号： H04L27/2608 , H04L27/2071 , H04L27/2075 , H04L27/2331 , H04L27/36
摘要： A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel using a vocoder that operates in different modes depending upon characteristics of the inputted signal it receives. To prepare the digital data for transmission, one or more carrier signals are encoded with the digital data using one of a number of modulation schemes that utilize differential phase shift keying to give the modulated carrier signal certain periodicity and energy characteristics that allow it to be transmitted by the vocoder at full rate. The modulation schemes include DPSK using either a single or multiple frequency carriers, combined FSK-DPSK modulation, combined ASK-DPSK, as well as PSK with a phase tracker in the demodulator. These modulation schemes permit data communication via a CDMA, GSM, or other type of voice traffic channel at a low bit error rate.
摘要翻译：一种用于通过蜂窝通信网络进行数据通信的系统和方法，其允许使用声码器通过语音信道传输数字数据，声码器根据其接收的输入信号的特性以不同的模式工作。为了准备用于发送的数字数据，使用利用差分相移键控的多个调制方案之一用数字数据对一个或多个载波信号进行编码，以给出调制的载波信号一定的周期性和允许其传输的能量特性由声码器以全速率。调制方案包括使用单个或多个频率载波的DPSK，组合的FSK-DPSK调制，组合ASK-DPSK以及在解调器中的相位跟踪器的PSK。这些调制方案允许通过CDMA，GSM或其他类型的语音业务信道以低误码率进行数据通信。

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