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1. 发明授权

US09225844B2 Modem signaling using a multitone prefix over a voice channel of a wireless communication system 有权
标题翻译：在无线通信系统的语音信道上使用多音调前缀的调制解调器信令
公开(公告)号：US09225844B2
公开(公告)日：2015-12-29
申请号：US12901841
申请日：2010-10-11
申请人： Sethu K. Madhavan , Cem U. Saraydar , Andrew J. Macdonald , Ki Hak Yi , Iqbal M. Surti
发明人： Sethu K. Madhavan , Cem U. Saraydar , Andrew J. Macdonald , Ki Hak Yi , Iqbal M. Surti
IPC分类号： H04M11/06 , G07C5/00
CPC分类号： H04M11/066 , G07C5/008 , H04M11/068
摘要： A system and method of communicating data between a vehicle and call center via a voice channel of a wireless communication system. The method carried out by the system includes the steps of: establishing a voice channel connection between a vehicle telematics unit and call center via a wireless cellular network; generating a modem signaling carrier comprising a prefix followed by a single frequency tone; sending the modem signaling carrier over the voice channel connection using an EVRC-B vocoder; establishing a data communication session over the voice channel connection in response to the modem signaling carrier; and thereafter carrying out data communications between the vehicle telematics unit and call center during the data communication session.
摘要翻译：一种通过无线通信系统的语音信道在车辆和呼叫中心之间通信数据的系统和方法。该系统执行的方法包括以下步骤：经由无线蜂窝网络，在车辆远程信息处理单元与呼叫中心之间建立语音信道连接; 生成包括前缀和单个频率音调的调制解调器信令载波; 使用EVRC-B声码器通过语音信道连接发送调制解调器信令载波; 响应于调制解调器信令载体，通过语音信道连接建立数据通信会话; 然后在数据通信会话期间在车辆远程信息处理单元和呼叫中心之间进行数据通信。

2. 发明申请

US20110249714A1 MODEM SIGNALING USING A MULTITONE PREFIX OVER A VOICE CHANNEL OF A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统的语音通道中使用多音调前缀的调制解调器信号
公开(公告)号：US20110249714A1
公开(公告)日：2011-10-13
申请号：US12901841
申请日：2010-10-11
申请人： Sethu K. Madhavan , Cem U. Saraydar , Andrew J. MacDonald , Ki Hak Yi , Iqbal M. Surti
发明人： Sethu K. Madhavan , Cem U. Saraydar , Andrew J. MacDonald , Ki Hak Yi , Iqbal M. Surti
IPC分类号： H04B1/38
CPC分类号： H04M11/066 , G07C5/008 , H04M11/068
摘要： A system and method of communicating data between a vehicle and call center via a voice channel of a wireless communication system. The method carried out by the system includes the steps of: establishing a voice channel connection between a vehicle telematics unit and call center via a wireless cellular network; generating a modem signaling carrier comprising a prefix followed by a single frequency tone; sending the modem signaling carrier over the voice channel connection using an EVRC-B vocoder; establishing a data communication session over the voice channel connection in response to the modem signaling carrier; and thereafter carrying out data communications between the vehicle telematics unit and call center during the data communication session.
摘要翻译：一种通过无线通信系统的语音信道在车辆和呼叫中心之间通信数据的系统和方法。该系统执行的方法包括以下步骤：经由无线蜂窝网络，在车辆远程信息处理单元与呼叫中心之间建立语音信道连接; 生成包括前缀和单个频率音调的调制解调器信令载波; 使用EVRC-B声码器通过语音信道连接发送调制解调器信令载波; 响应于调制解调器信令载体，通过语音信道连接建立数据通信会话; 然后在数据通信会话期间在车辆远程信息处理单元和呼叫中心之间进行数据通信。

3. 发明授权

US08194526B2 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：US08194526B2
公开(公告)日：2012-06-05
申请号：US11163579
申请日：2005-10-24
申请人： Sethu K. Madhavan , Iqbal M. Surti , Jijun Yin
发明人： Sethu K. Madhavan , Iqbal M. 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

US08259840B2 Data communication via a voice channel of a wireless communication network using discontinuities 有权
标题翻译：通过使用不连续性的无线通信网络的语音信道进行数据通信
公开(公告)号：US08259840B2
公开(公告)日：2012-09-04
申请号：US11967396
申请日：2007-12-31
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu K. Madhavan , Iqbal M. Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu K. Madhavan , Iqbal M. Surti
IPC分类号： H04L27/20
CPC分类号： H04L27/2071 , H03D7/165 , 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 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, PSK with a phase tracker in the demodulator, as well as continuous signal modulation (ASK or FSK) with inserted discontinuities that can be independent of the digital data.
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，PSK与解调器中的相位跟踪器，以及具有插入不连续性的连续信号调制（ASK或FSK），其可以独立于数字数据。

5. 发明申请

US20080255828A1 DATA COMMUNICATION VIA A VOICE CHANNEL OF A WIRELESS COMMUNICATION NETWORK USING DISCONTINUITIES 有权
标题翻译：使用不连续性的无线通信网络的语音通道进行数据通信
公开(公告)号：US20080255828A1
公开(公告)日：2008-10-16
申请号：US11967396
申请日：2007-12-31
申请人： Elizabeth Chesnutt , Jijun Yin , Sethu K. Madhavan , Iqbal M. Surti
发明人： Elizabeth Chesnutt , Jijun Yin , Sethu K. Madhavan , Iqbal M. Surti
IPC分类号： G10L19/00
CPC分类号： H04L27/2071 , H03D7/165 , 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 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, PSK with a phase tracker in the demodulator, as well as continuous signal modulation (ASK or FSK) with inserted discontinuities that can be independent of the digital data.
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，PSK与解调器中的相位跟踪器，以及具有插入不连续性的连续信号调制（ASK或FSK），其可以独立于数字数据。

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