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81. 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。

82. 发明授权

US08761736B2 Modem signaling using speech components 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语音分量的调制解调器信令
公开(公告)号：US08761736B2
公开(公告)日：2014-06-24
申请号：US12876443
申请日：2010-09-07
申请人： Andrew J. MacDonald , Cem U. Saraydar , Sethu K. Madhavan
发明人： Andrew J. MacDonald , Cem U. Saraydar , Sethu K. Madhavan
IPC分类号： H04J3/00 , H04L12/28 , H04M11/00
CPC分类号： H04M11/066
摘要： A system and method of communicating with a modem via a voice channel of a wireless communication system. The method carried out by the system includes the steps of (a) establishing a voice channel connection between a vehicle telematics unit and call center via a wireless cellular network, (b) generating a modem signaling carrier comprising a single frequency tone together with a speech component, (c) sending the modem signaling carrier over the voice channel connection using an EVRC-B vocoder, (d) establishing a data communication session over the voice channel connection in response to the modem signaling carrier, and thereafter (e) 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与调制解调器通信的系统和方法。该系统执行的方法包括以下步骤：（a）经由无线蜂窝网络在车辆远程信息处理单元和呼叫中心之间建立语音信道连接，（b）生成包括单个频率音调的调制解调器信令载波和语音组件，（c）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;（d）响应于调制解调器信令载波在语音信道连接上建立数据通信会话，之后（e）执行在数据通信会话期间车辆远程信息处理单元与呼叫中心之间的数据通信。

83. 发明授权

US09200902B2 Method of processing global navigation satellite system data 有权
标题翻译：全球导航卫星系统数据处理方法
公开(公告)号：US09200902B2
公开(公告)日：2015-12-01
申请号：US12636248
申请日：2009-12-11
申请人： Sethu K. Madhavan , Chaminda Basnayake , Chester A. Huber , Eray Yasan
发明人： Sethu K. Madhavan , Chaminda Basnayake , Chester A. Huber , Eray Yasan
IPC分类号： G01C21/00 , G01C21/32 , G01S19/20 , G01S19/08 , G01S19/42
CPC分类号： G01C21/00 , B64C13/18 , B64C13/503 , G01S19/08 , G01S19/20 , G01S19/42
摘要： A method of processing global navigation satellite system (GNSS) data includes identifying one or more GNSS satellites servicing a predefined area, receiving at least one of GNSS almanac data or space-based augmentation system (SBAS) data for the satellites servicing the predefined area, determining the performance of the GNSS satellites servicing the predefined area using the almanac data or SBAS data, and applying a performance rating to the predefined area based on the performance of the GNSS satellites.
摘要翻译：处理全球导航卫星系统（GNSS）数据的方法包括识别服务于预定义区域的一个或多个GNSS卫星，接收为预定区域服务的卫星的GNSS年历数据或基于空间的增强系统（SBAS）数据中的至少一个数据，使用年历数据或SBAS数据确定为预定义区域服务的GNSS卫星的性能，以及基于GNSS卫星的性能将性能评级应用于预定区域。

84. 发明授权

US08265193B2 Method and system for communicating data over a wireless communication system voice channel utilizing frame gaps 有权
标题翻译：通过利用帧间隙在无线通信系统语音信道上传送数据的方法和系统
公开(公告)号：US08265193B2
公开(公告)日：2012-09-11
申请号：US10802147
申请日：2004-03-17
申请人： Sethu K. Madhavan , Fahd Z. Laghrari , James J. Piwowarski
发明人： Sethu K. Madhavan , Fahd Z. Laghrari , James J. Piwowarski
IPC分类号： H04L27/10 , H04L23/00
CPC分类号： H04L27/04 , H04L1/0018
摘要： The present invention provides a method for communicating data over a voice channel of a wireless communication system. The method includes receiving a first periodic data signal and modulating the first periodic data signal to produce a second periodic data signal. Modulating the first periodic data signal includes inserting a predetermined silence period into the first periodic data signal at timed intervals to produce the second periodic data signal. The method further includes communicating the second periodic data signal over the voice channel of the wireless communication system. The method of modulating the first periodic data signal may include receiving a control signal that includes parameters for a length of the predetermined silence period and timing of the intervals, modulating the first periodic data signal responsive to the received control signal, and producing the second periodic data signal.
摘要翻译：本发明提供了一种用于在无线通信系统的语音信道上传送数据的方法。该方法包括接收第一周期性数据信号并调制第一周期性数据信号以产生第二周期性数据信号。调制第一周期性数据信号包括以定时的间隔将预定的静默周期插入到第一周期数据信号中，以产生第二周期数据信号。该方法还包括在无线通信系统的语音信道上传送第二周期性数据信号。调制第一周期性数据信号的方法可以包括接收控制信号，该控制信号包括预定静默期的长度和间隔的定时的参数，响应于所接收的控制信号调制第一周期性数据信号，并产生第二周期数据信号。

85. 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。

86. 发明申请

US20110144911A1 METHOD OF PROCESSING GLOBAL NAVIGATION SATELLITE SYSTEM DATA 有权
标题翻译：全球导航卫星系统数据处理方法
公开(公告)号：US20110144911A1
公开(公告)日：2011-06-16
申请号：US12636248
申请日：2009-12-11
申请人： Sethu K. Madhavan , Chaminda Basnayake , Chester A. Huber , Eray Yasan
发明人： Sethu K. Madhavan , Chaminda Basnayake , Chester A. Huber , Eray Yasan
IPC分类号： G01C21/00 , G01C21/32 , G01S19/20
CPC分类号： G01C21/00 , B64C13/18 , B64C13/503 , G01S19/08 , G01S19/20 , G01S19/42
摘要： A method of processing global navigation satellite system (GNSS) data includes identifying one or more GNSS satellites servicing a predefined area, receiving at least one of GNSS almanac data or space-based augmentation system (SBAS) data for the satellites servicing the predefined area, determining the performance of the GNSS satellites servicing the predefined area using the almanac data or SBAS data, and applying a performance rating to the predefined area based on the performance of the GNSS satellites.
摘要翻译：处理全球导航卫星系统（GNSS）数据的方法包括识别服务于预定义区域的一个或多个GNSS卫星，接收为预定区域服务的卫星的GNSS年历数据或基于空间的增强系统（SBAS）数据中的至少一个数据，使用年历数据或SBAS数据确定为预定义区域服务的GNSS卫星的性能，以及基于GNSS卫星的性能将性能评级应用于预定区域。

87. 发明申请

US20110039538A1 VOICE FALLBACK ORIGINATION FOR VEHICLE CELLULAR COMMUNICATION WITH A CALL CENTER 有权
标题翻译：用呼叫中心进行车辆通信通信的语音报复
公开(公告)号：US20110039538A1
公开(公告)日：2011-02-17
申请号：US12541588
申请日：2009-08-14
申请人： Sethu K. Madhavan , Ki Yak Yi
发明人： Sethu K. Madhavan , Ki Yak Yi
IPC分类号： H04W4/00
CPC分类号： 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过程中的一个。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。

88. 发明申请

US20100202616A1 METHOD OF SECURING AND AUTHENTICATING DATA USING MICRO-CERTIFICATES 有权
标题翻译：使用微型证书保护和认证数据的方法
公开(公告)号：US20100202616A1
公开(公告)日：2010-08-12
申请号：US12370075
申请日：2009-02-12
申请人： Kenneth L. Peirce , Sethu K. Madhavan , James J. Piwowarski
发明人： Kenneth L. Peirce , Sethu K. Madhavan , James J. Piwowarski
IPC分类号： H04L9/06 , H04L9/00
CPC分类号： H04L63/0823 , H04L63/062 , H04W4/046 , H04W12/02 , H04W12/04
摘要： A method of securing wireless communications includes storing a recipient's micro-certificate at a vehicle, a call center, or a certificate authority, transmitting the micro-certificate from its place of storage, extracting the public key from the micro-certificate, encrypting the vehicle communication using the public key, transmitting the encrypted vehicle communication to the recipient, and decrypting the vehicle communication using a private key after receiving the vehicle communication. The micro-certificate can include identifying data for the recipient and can have a length that is less than twice the length of the public key contained in the micro-certificate.
摘要翻译：一种确保无线通信的方法包括将接收者的微型证书存储在车辆，呼叫中心或认证机构，从其存储地点发送微型证书，从微型证书提取公钥，加密车辆使用公钥的通信，将加密的车辆通信发送到接收者，以及在接收到车辆通信之后使用私钥解密车辆通信。微型证书可以包括识别接收者的数据，并且可以具有小于微型证书中包含的公钥长度的两倍的长度。

89. 发明授权

US08054924B2 Data transmission method with phase shift error correction 有权
标题翻译：具有相移误差校正的数据传输方法
公开(公告)号：US08054924B2
公开(公告)日：2011-11-08
申请号：US11130926
申请日：2005-05-17
申请人： Sethu K. Madhavan
发明人： Sethu K. Madhavan
IPC分类号： H04B1/10
CPC分类号： H04L27/2275 , H04L25/0214 , H04L25/0228 , H04L25/03019
摘要： A data transmission method with phase shift error correction comprising: transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component; receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused by the network, wherein the phase shift error is in both the received reference signal component and the received data signal component; generating a multiplier signal at a receiver having the predetermined reference frequency; using the multiplier signal to determine the phase shift error in the received transmission signal; and correcting the received data signal component using the determined phase shift error.
摘要翻译：一种具有相移误差校正的数据传输方法，包括：通过网络传输传输信号，其中传输信号包括具有预定频率的参考信号分量和数据信号分量; 接收所述发送信号，其中所述接收的发送信号包括由所述网络引起的相移误差，其中所述相移误差在所接收的参考信号分量和所接收的数据信号分量中; 在具有预定参考频率的接收机处产生乘法器信号; 使用乘法器信号来确定接收的发送信号中的相移误差; 以及使用所确定的相移误差校正所接收的数据信号分量。

90. 发明申请

US20110039537A1 CELLULAR VOICE CHANNEL 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蜂窝声道通道
公开(公告)号：US20110039537A1
公开(公告)日：2011-02-17
申请号：US12541531
申请日：2009-08-14
申请人： Sethu K. Madhavan , Ki Yak Yi
发明人： Sethu K. Madhavan , Ki Yak Yi
IPC分类号： H04W4/00
CPC分类号： H04W76/10 , H04M3/51 , H04M2203/652 , H04W76/16 , 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。

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