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71. 发明授权

US09208797B2 Tone detection for signals sent through a vocoder 有权
标题翻译：通过声码器发送的信号的音频检测
公开(公告)号：US09208797B2
公开(公告)日：2015-12-08
申请号：US12106261
申请日：2008-04-18
申请人： Sethu K. Madhavan , Jijun Yin , Qin Jiang , Darrel James Van Buer
发明人： Sethu K. Madhavan , Jijun Yin , Qin Jiang , Darrel James Van Buer
IPC分类号： G10L25/78 , H04Q1/46
CPC分类号： G10L25/78 , H04Q1/46
摘要： A tone detector and associated method for use with EVRC-B and GSM vocoders to enable reliable detection of system connect tones over a wireless communication system. The tone detection method examines a number of sequential data frames of the signal received from the vocoder and determines that the tone is present if the spectral energy at frequencies around the tone is much higher than that at neighboring frequencies and if the calculated center frequency of the data frames is at or near the frequency of the tone.
摘要翻译：用于与EVRC-B和GSM声码器一起使用的音调检测器和相关方法，以便通过无线通信系统可靠地检测系统连接音。音调检测方法检查从声码器接收的信号的多个顺序数据帧，并且如果音调周围的频率的频谱能量远高于相邻频率的频谱能量，则确定音调存在，并且如果计算的中心频率数据帧处于或接近音调的频率。

72. 发明申请

US20130109416A1 VEHICLE TELEMATICS COMMUNICATION USING TEXT ENCODING OF BINARY DATA 有权
标题翻译：使用二进制数据的文本编码的车辆电话通信
公开(公告)号：US20130109416A1
公开(公告)日：2013-05-02
申请号：US13287520
申请日：2011-11-02
申请人： Sethu K. Madhavan
发明人： Jin Tang , Ki Hak Yi , Sethu K. Madhavan
IPC分类号： H04W4/14
CPC分类号： H04W4/14 , H04W4/046
摘要： A system and method for sending binary data via a short message service (SMS) over a wireless communication system. The method provides the capability to send and receive binary data to a vehicle telematics unit using a text SMS message. The binary data is converted to encoded text according to an encoding scheme supported by a wireless communication system. Then, the encoded text is sent as an SMS message over the wireless communication system. Once, the SMS message containing the encoded text is received at its destination, it is converted back to binary data.
摘要翻译：一种通过无线通信系统通过短消息服务（SMS）发送二进制数据的系统和方法。该方法提供使用文本SMS消息向车辆远程信息处理单元发送和接收二进制数据的能力。根据由无线通信系统支持的编码方案将二进制数据转换为编码文本。然后，编码文本通过无线通信系统作为SMS消息发送。一旦包含编码文本的SMS消息在其目的地被接收，则将其转换回二进制数据。

73. 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。

74. 发明授权

US07239859B2 Method and system for establishing a telephony data connection to receiver 有权
标题翻译：用于建立到接收机的电话数据连接的方法和系统
公开(公告)号：US07239859B2
公开(公告)日：2007-07-03
申请号：US10722260
申请日：2003-11-25
申请人： Sethu K. Madhavan , David George , Fahd Laghrari
发明人： Sethu K. Madhavan , David George , Fahd Laghrari
IPC分类号： H04B1/02 , H04B1/38 , H04M1/00 , H04Q7/20
CPC分类号： H04M11/06 , H04L27/02
摘要： The current invention provides a method for establishing a telephony data connection to a receiver. The telephony data connection is initiated at a source location. A carrier signal is generated for the connection and the carrier signal is modified. The modified carrier signal is sent to the receiver. Identification data is received from the receiver. A computer usable medium with suitable computer program code is employed for establishing a telephony data connection to a receiver.
摘要翻译：本发明提供了一种用于建立到接收机的电话数据连接的方法。电话数据连接在源位置启动。为连接生成载波信号，并修改载波信号。修改的载波信号被发送到接收机。从接收器接收识别数据。采用具有合适的计算机程序代码的计算机可用介质来建立到接收机的电话数据连接。

75. 发明授权

US08195148B2 SMS origination for vehicle communication with a call center 有权
标题翻译：短信来自与呼叫中心的车辆通信
公开(公告)号：US08195148B2
公开(公告)日：2012-06-05
申请号：US12541572
申请日：2009-08-14
申请人： Sethu K. Madhavan , Ki Yak Yi , Elizabeth Chesnutt
发明人： Sethu K. Madhavan , Ki Yak Yi , Elizabeth Chesnutt
IPC分类号： H04W4/00
CPC分类号： H04W4/14 , H04W76/18
摘要： A system and method for making vehicle originated calls to a telematics service provider or other call center. The method includes identifying a call type associated with a desired wireless communication of speech or data to the call center, and then carrying out one of a number of different call connection processes depending on the call type. For voice channel cellular connections, an in-band modem cellular connection is preferably established in most instances using a connection retry strategy that includes primary, secondary, and possibly tertiary connection attempts each of which utilize at least one of a number of different voice and data call origination processes. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems.
摘要翻译：一种用于使车辆发起呼叫到远程信息处理服务提供商或其他呼叫中心的系统和方法。所述方法包括将与语音或数据的所需无线通信相关联的呼叫类型识别到呼叫中心，然后根据呼叫类型执行多个不同呼叫连接进程之一。对于语音信道蜂窝连接，优选地在大多数情况下使用连接重试策略来建立带内调制解调器蜂窝连接，所述连接重试策略包括主要，次要和可能的三级连接尝试，每个连接尝试利用多个不同语音和数据中的至少一个呼叫发起过程。该系统和方法可以结合各种蜂窝系统技术进行，但是特别适用于GSM系统。

76. 发明申请

US20110038307A1 PACKET DATA ORIGINATION FOR VEHICLE COMMUNICATION WITH A CALL CENTER 有权
标题翻译：用呼叫中心进行车辆通信的分组数据原理
公开(公告)号：US20110038307A1
公开(公告)日：2011-02-17
申请号：US12541547
申请日：2009-08-14
申请人： Sethu K. Madhavan , Ki Yak Yi , Elizabeth Chesnutt
发明人： Sethu K. Madhavan , Ki Yak Yi , Elizabeth Chesnutt
IPC分类号： H04W40/00
CPC分类号： G07C5/008 , H04L67/12 , H04W76/20
摘要： A system and method for making vehicle originated calls to a telematics service provider or other call center. The method includes identifying a call type associated with a desired wireless communication of speech or data to the call center, and then carrying out one of a number of different call connection processes depending on the call type. For voice channel cellular connections, an in-band modem cellular connection is preferably established in most instances using a connection retry strategy that includes primary, secondary, and possibly tertiary connection attempts each of which utilize at least one of a number of different voice and data call origination processes. The system and method can be carried out in connection with various cellular system technologies, but is especially suited for use with GSM systems.
摘要翻译：一种用于使车辆发起呼叫到远程信息处理服务提供商或其他呼叫中心的系统和方法。所述方法包括将与语音或数据的所需无线通信相关联的呼叫类型识别到呼叫中心，然后根据呼叫类型执行多个不同呼叫连接进程之一。对于语音信道蜂窝连接，优选地在大多数情况下使用连接重试策略来建立带内调制解调器蜂窝连接，所述连接重试策略包括主要，次要和可能的三级连接尝试，每个连接尝试利用多个不同语音和数据中的至少一个呼叫发起过程。该系统和方法可以结合各种蜂窝系统技术进行，但是特别适用于GSM系统。

77. 发明授权

US07782814B2 Method of transition between wireless voice and data transmissions 有权
标题翻译：无线语音和数据传输之间的转换方法
公开(公告)号：US07782814B2
公开(公告)日：2010-08-24
申请号：US11190790
申请日：2005-07-27
申请人： Ronald W. Fraser , Dwayne A. Crocker , Sethu K. Madhavan , David A. Adams
发明人： Ronald W. Fraser , Dwayne A. Crocker , Sethu K. Madhavan , David A. Adams
IPC分类号： H04W4/00
CPC分类号： H04W76/20
摘要： The invention provides a method of transitioning between voice and data communications with a mobile vehicle. A switch-to-voice command signal is sent from a call center modem pool to the mobile vehicle, and a vehicle switch-to-voice acknowledgement signal is received at the call center. A call from the call center modem pool is switched to a call center advisor in response to the vehicle switch-to-voice acknowledgement signal.
摘要翻译：本发明提供了一种在与移动车辆进行语音和数据通信之间转换的方法。从呼叫中心调制解调器池向移动车辆发送切换到语音命令信号，并且在呼叫中心接收到车辆切换到语音确认信号。来自呼叫中心调制解调器池的呼叫响应于车辆切换到语音确认信号被切换到呼叫中心顾问。

78. 发明授权

US07705775B2 Method of improving a vehicle emergency call network 有权
标题翻译：改善车辆紧急呼叫网络的方法
公开(公告)号：US07705775B2
公开(公告)日：2010-04-27
申请号：US11323502
申请日：2005-12-30
申请人： Sethu K. Madhavan , Eray Yasan , Abhijit D. Patil , Daniel N. Aloi
发明人： Sethu K. Madhavan , Eray Yasan , Abhijit D. Patil , Daniel N. Aloi
IPC分类号： G01S1/00 , H04B1/66
CPC分类号： H04M11/04 , G01C21/12 , G01C21/165 , G01S19/23 , G01S19/40 , G01S19/47
摘要： A method of improving a vehicle emergency call network used during an enhanced 911 call, which is especially useful in environments having degraded GPS signals. The present method utilizes an independent position enhancement algorithm, such as a dead reckoning algorithm, and converts the output of that algorithm into a compatible format compatible with a position determining entity (PDE). Some independent position enhancement algorithms return output in the form of position information (typically, two- or three-dimensional coordinates), however, most PDEs only accept information in the form of pseudo-ranges. Thus, the present method provides a technique in which the advantages of an independent position enhancement algorithm are enjoyed, yet a compatible output is sent to the PDE.
摘要翻译：一种改进在增强型911呼叫期间使用的车辆紧急呼叫网络的方法，其在具有劣化的GPS信号的环境中特别有用。本方法利用独立的位置增强算法，例如航位推算算法，并将该算法的输出转换成与位置确定实体（PDE）兼容的兼容格式。一些独立的位置增强算法以位置信息（通常为二维或三维坐标）的形式返回输出，然而，大多数PDE只接受伪距形式的信息。因此，本方法提供了一种技术，其中享受独立位置增强算法的优点，但是向PDE发送兼容的输出。

79. 发明申请

US20090265173A1 TONE DETECTION FOR SIGNALS SENT THROUGH A VOCODER 有权
标题翻译：通过VOCODER发出信号的音调检测
公开(公告)号：US20090265173A1
公开(公告)日：2009-10-22
申请号：US12106261
申请日：2008-04-18
申请人： Sethu K. Madhavan , Jijun Yin , Qin Jiang , Darrel James Van Buer
发明人： Sethu K. Madhavan , Jijun Yin , Qin Jiang , Darrel James Van Buer
IPC分类号： G10L13/06
CPC分类号： G10L25/78 , H04Q1/46
摘要： A tone detector and associated method for use with EVRC-B and GSM vocoders to enable reliable detection of system connect tones over a wireless communication system. The tone detection method examines a number of sequential data frames of the signal received from the vocoder and determines that the tone is present if the spectral energy at frequencies around the tone is much higher than that at neighboring frequencies and if the calculated center frequency of the data frames is at or near the frequency of the tone.
摘要翻译：用于与EVRC-B和GSM声码器一起使用的音调检测器和相关方法，以便通过无线通信系统可靠地检测系统连接音。音调检测方法检查从声码器接收的信号的多个顺序数据帧，并且如果音调周围的频率的频谱能量远高于相邻频率的频谱能量，则确定音调存在，并且如果计算的中心频率数据帧处于或接近音调的频率。

80. 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。

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