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1. 发明申请

US20100232548A1 DEMODULATION AND DECODING FOR FREQUENCY MODULATION (FM) RECEIVERS WITH RADIO DATA SYSTEM (RDS) OR RADIO BROADCAST DATA SYSTEM (RBDS) 有权
标题翻译：无线电数据系统（RDS）或无线电广播数据系统（RBDS）的频率调制（FM）接收机的解调和解码
公开(公告)号：US20100232548A1
公开(公告)日：2010-09-16
申请号：US12720688
申请日：2010-03-10
申请人： Jaiganesh BALAKRISHNAN , Aravind Ganesan
发明人： Jaiganesh BALAKRISHNAN , Aravind Ganesan
IPC分类号： H04L27/14
CPC分类号： H04L27/2272 , H04L1/0045 , H04L1/0057 , H04L27/233 , H04L2027/0067 , H04L2027/0085 , H04L2027/0087
摘要： Demodulation and decoding for frequency modulation (FM) receivers with radio data system (RDS) or radio broadcast data system (RBDS). An example of a method for processing a signal in a receiver includes quantizing a demodulated signal to generate bits in response to receipt of the demodulated signal. The method also includes grouping the bits into one or more blocks. The method further includes computing a syndrome for a block from the one or more blocks. Moreover, the method includes identifying error, corresponding to the syndrome, in the block based on type of demodulation. The type of demodulation includes a coherent demodulation and a differential demodulation. Furthermore, the method includes correcting the error in the block.
摘要翻译：具有无线电数据系统（RDS）或无线电广播数据系统（RBDS）的频率调制（FM）接收机的解调和解码。用于处理接收机中的信号的方法的示例包括量化解调信号以响应于接收到解调信号而产生位。该方法还包括将比特分组成一个或多个块。该方法还包括从一个或多个块计算块的综合征。此外，该方法包括基于解调的类型来识别与块中相对应的错误。解调的类型包括相干解调和差分解调。此外，该方法包括校正块中的错误。

2. 发明授权

US08112051B2 Method and system for false frequency lock free autonomous scan in a receiver 有权
标题翻译：接收机中无锁频自主扫描的方法和系统
公开(公告)号：US08112051B2
公开(公告)日：2012-02-07
申请号：US12616260
申请日：2009-11-11
申请人： Jaiganesh Balakrishnan , Aravind Ganesan , Sriram Murali , Bijoy Bhukania
发明人： Jaiganesh Balakrishnan , Aravind Ganesan , Sriram Murali , Bijoy Bhukania
IPC分类号： H04B1/18 , H04B1/16
CPC分类号： H04B17/318
摘要： Method and system for false lock free autonomous scan in a receiver is disclosed. The method includes identifying a presence of a desired signal to avoid false frequency lock in a Frequency Modulation receiver. The method includes receiving a signal. The method further includes identifying the desired signal, if a first energy is above a first threshold. The method also includes identifying the desired signal, if an Intermediate Frequency count is below a second threshold. The method includes identifying the desired signal, if a second energy of the signal is above a third threshold. The method includes identifying the desired signal, if an absolute difference between a first Received Signal Strength Indication (RSSI) value and a second RSSI value of the signal is below a fourth threshold. The method includes determining a third energy. The method includes identifying the desired signal, if the third energy is below a fifth threshold.
摘要翻译：公开了一种用于接收机中无锁自主扫描的方法和系统。该方法包括识别期望信号的存在以避免频率调制接收机中的错误频率锁定。该方法包括接收信号。如果第一能量高于第一阈值，该方法还包括识别期望信号。如果中频频率低于第二阈值，该方法还包括识别期望的信号。如果信号的第二能量高于第三阈值，则该方法包括识别所需信号。如果信号的第一接收信号强度指示（RSSI）值和第二RSSI值之间的绝对差低于第四阈值，则该方法包括识别所需信号。该方法包括确定第三能量。如果第三能量低于第五阈值，则该方法包括识别所需信号。

3. 发明授权

US08498349B2 Demodulation and decoding for frequency modulation (FM) receivers with radio data system (RDS) or radio broadcast data system (RBDS) 有权
标题翻译：具有无线电数据系统（RDS）或无线电广播数据系统（RBDS）的调频（FM）接收机的解调和解码
公开(公告)号：US08498349B2
公开(公告)日：2013-07-30
申请号：US12720688
申请日：2010-03-10
申请人： Jaiganesh Balakrishnan , Aravind Ganesan
发明人： Jaiganesh Balakrishnan , Aravind Ganesan
IPC分类号： H04K1/10 , H04B1/38 , G01R31/08
CPC分类号： H04L27/2272 , H04L1/0045 , H04L1/0057 , H04L27/233 , H04L2027/0067 , H04L2027/0085 , H04L2027/0087
摘要： Demodulation and decoding for frequency modulation (FM) receivers with radio data system (RDS) or radio broadcast data system (RBDS). An example of a method for processing a signal in a receiver includes quantizing a demodulated signal to generate bits in response to receipt of the demodulated signal. The method also includes grouping the bits into one or more blocks. The method further includes computing a syndrome for a block from the one or more blocks. Moreover, the method includes identifying error, corresponding to the syndrome, in the block based on type of demodulation. The type of demodulation includes a coherent demodulation and a differential demodulation. Furthermore, the method includes correcting the error in the block.
摘要翻译：具有无线电数据系统（RDS）或无线电广播数据系统（RBDS）的频率调制（FM）接收机的解调和解码。用于处理接收机中的信号的方法的示例包括量化解调信号以响应于接收到解调信号而产生位。该方法还包括将比特分组成一个或多个块。该方法还包括从一个或多个块计算块的综合征。此外，该方法包括基于解调的类型来识别与块中相对应的错误。解调的类型包括相干解调和差分解调。此外，该方法包括校正块中的错误。

4. 发明申请

US20110111714A1 METHOD AND SYSTEM FOR FALSE FREQUENCY LOCK FREE AUTONOMOUS SCAN IN A RECEIVER 有权
标题翻译：方法和系统在接收机中进行无差错自由无障碍扫描
公开(公告)号：US20110111714A1
公开(公告)日：2011-05-12
申请号：US12616260
申请日：2009-11-11
申请人： Jaiganesh Balakrishnan , Aravind Ganesan , Sriram Murali , Bijoy Bhukania
发明人： Jaiganesh Balakrishnan , Aravind Ganesan , Sriram Murali , Bijoy Bhukania
IPC分类号： H04B1/18 , H04B1/16
CPC分类号： H04B17/318
摘要： Method and system for false lock free autonomous scan in a receiver is disclosed. The method includes identifying a presence of a desired signal to avoid false frequency lock in a Frequency Modulation receiver. The method includes receiving a signal. The method further includes identifying the desired signal, if a first energy is above a first threshold. The method also includes identifying the desired signal, if an Intermediate Frequency count is below a second threshold. The method includes identifying the desired signal, if a second energy of the signal is above a third threshold. The method includes identifying the desired signal, if an absolute difference between a first Received Signal Strength Indication (RSSI) value and a second RSSI value of the signal is below a fourth threshold. The method includes determining a third energy. The method includes identifying the desired signal, if the third energy is below a fifth threshold.
摘要翻译：公开了一种用于接收机中无锁自主扫描的方法和系统。该方法包括识别期望信号的存在以避免频率调制接收机中的错误频率锁定。该方法包括接收信号。如果第一能量高于第一阈值，该方法还包括识别期望信号。如果中频频率低于第二阈值，该方法还包括识别期望的信号。如果信号的第二能量高于第三阈值，则该方法包括识别所需信号。如果信号的第一接收信号强度指示（RSSI）值和第二RSSI值之间的绝对差低于第四阈值，则该方法包括识别所需信号。该方法包括确定第三能量。如果第三能量低于第五阈值，则该方法包括识别所需信号。

5. 发明授权

US09130683B2 Silence based attenuation for enhanced idle-channel FM or other receiver co-existence with a coexisting radio and circuits, processes, and systems 有权
标题翻译：基于静音的衰减用于增强的空闲信道FM或其他接收机与共存无线电和电路，过程和系统的共存
公开(公告)号：US09130683B2
公开(公告)日：2015-09-08
申请号：US13171589
申请日：2011-06-29
申请人： Sriram Murali , Aravind Ganesan
发明人： Sriram Murali , Aravind Ganesan
IPC分类号： H03G3/00 , H04H40/72 , H04R5/00 , H04B1/10 , H04H40/45
CPC分类号： H04H40/45 , H04B1/10 , Y10T29/49117
摘要： An electronic circuit (100) for use in a wireless receiver (1720). The circuit (100) includes an audio demodulator (15), an audio envelope portion (35) operable to deliver an audio envelope signal, a high pass filter (38) coupled between the audio demodulator (15) and the audio envelope portion (35), a volume control (25) fed by the audio demodulator (15) and operable to provide a controllable audio signal output, and a controller (45) responsive to the audio envelope portion (35) to provide an attenuation control to the volume control (25). Other circuits, receivers, processes of operation, processes of manufacture, and processes of testing are disclosed.
摘要翻译：一种用于无线接收机（1720）中的电子电路（100）。电路（100）包括音频解调器（15），可操作以传送音频包络信号的音频包络部分（35），耦合在音频解调器（15）和音频信封部分（35）之间的高通滤波器），由音频解调器（15）馈送并且可操作以提供可控音频信号输出的音量控制（25），以及响应于音频包络部分（35）向音量控制器提供衰减控制的控制器（45）（25）。公开了其他电路，接收器，操作过程，制造过程和测试过程。

6. 发明授权

US08436771B2 Enhancing search capacity of global navigation satellite system (GNSS) receivers 有权
标题翻译：提高全球导航卫星系统（GNSS）接收机的搜索能力
公开(公告)号：US08436771B2
公开(公告)日：2013-05-07
申请号：US12980360
申请日：2010-12-29
申请人： Jasbir Singh , Jawaharlal Tangudu , Aravind Ganesan
发明人： Jasbir Singh , Jawaharlal Tangudu , Aravind Ganesan
IPC分类号： G01S19/24
CPC分类号： G01S19/28 , G01R31/2851 , G01S19/24 , G01S19/30 , G01S19/37
摘要： Enhancing search capacity of Global Navigation Satellite System (GNSS) receivers. A method for searching satellite signals in a receiver includes performing a plurality of searches sequentially. The method also includes storing a result from each search of the plurality of searches in a consecutive section of a memory. Further, the method includes detecting free sections in the memory. The method also includes concatenating the free sections in the memory to yield a concatenated free section. Moreover, the method includes allocating the concatenated free section for performing an additional search.
摘要翻译：提高全球导航卫星系统（GNSS）接收机的搜索能力。用于在接收机中搜索卫星信号的方法包括顺序执行多个搜索。该方法还包括将来自多个搜索的每次搜索的结果存储在存储器的连续部分中。此外，该方法包括检测存储器中的空闲部分。该方法还包括连接存储器中的空闲部分以产生级联的自由部分。此外，该方法包括分配用于执行附加搜索的级联空闲部分。

7. 发明申请

US20120230495A1 Silence Based Attenuation for Enhanced Idle-Channel FM or Other Receiver Co-Existence with a Coexisting Radio and Circuits, Processes, and Systems 有权
标题翻译：用于增强空闲频道FM或其他接收机的基于静音的衰减与共存无线电和电路，过程和系统共存
公开(公告)号：US20120230495A1
公开(公告)日：2012-09-13
申请号：US13171589
申请日：2011-06-29
申请人： Sriram Murali , Aravind Ganesan
发明人： Sriram Murali , Aravind Ganesan
IPC分类号： H04H20/48 , G01R27/28 , H01R43/00 , H04B3/00 , H04R5/00
CPC分类号： H04H40/45 , H04B1/10 , Y10T29/49117
摘要： An electronic circuit (100) for use in a wireless receiver (1720). The circuit (100) includes an audio demodulator (15), an audio envelope portion (35) operable to deliver an audio envelope signal, a high pass filter (38) coupled between the audio demodulator (15) and the audio envelope portion (35), a volume control (25) fed by the audio demodulator (15) and operable to provide a controllable audio signal output, and a controller (45) responsive to the audio envelope portion (35) to provide an attenuation control to the volume control (25). Other circuits, receivers, processes of operation, processes of manufacture, and processes of testing are disclosed.
摘要翻译：一种用于无线接收机（1720）中的电子电路（100）。电路（100）包括音频解调器（15），可操作以传送音频包络信号的音频包络部分（35），耦合在音频解调器（15）和音频信封部分（35）之间的高通滤波器），由音频解调器（15）馈送并且可操作以提供可控音频信号输出的音量控制（25），以及响应于音频包络部分（35）向音量控制器提供衰减控制的控制器（45）（25）。公开了其他电路，接收器，操作过程，制造过程和测试过程。

8. 发明授权

US09612339B2 Detecting satellite signals by storing signal sets spanning code period 有权
公开(公告)号：US09612339B2
公开(公告)日：2017-04-04
申请号：US13412281
申请日：2012-03-05
申请人： Jasbir Singh Nayyar , Jawaharlal Tangudu , Aravind Ganesan
发明人： Jasbir Singh Nayyar , Jawaharlal Tangudu , Aravind Ganesan
IPC分类号： G01S19/29 , G01S19/30
CPC分类号： G01S19/29 , G01S19/30
摘要： A GNSS receiver configured to detect a presence of at least one GNSS satellite signal in a received signal is provided. The GNSS receiver includes a buffer loaded with sample sets corresponding to the received signal and a Doppler derotation block configured to perform a Doppler derotation corresponding to at least one Doppler frequency on a sample set received from the buffer. The GNSS receiver further includes an accumulator block configured to perform a coherent accumulation of a plurality of sample sets upon or subsequent to the Doppler derotation corresponding to a Doppler frequency, and, a first memory configured to store the results of the coherent accumulation. A register array is configured to be loaded with the results stored in the first memory and a correlator engine is configured to generate correlation results by correlating the results in the register array with a plurality of code phases of GNSS satellites.

9. 发明申请

US20130229305A1 SYSTEMS AND METHODS FOR DETECTING SATELLITE SIGNALS 有权
标题翻译：用于检测卫星信号的系统和方法
公开(公告)号：US20130229305A1
公开(公告)日：2013-09-05
申请号：US13412281
申请日：2012-03-05
申请人： Jasbir Singh Nayyar , Jawaharlal Tangudu , Aravind Ganesan
发明人： Jasbir Singh Nayyar , Jawaharlal Tangudu , Aravind Ganesan
IPC分类号： G01S19/24
CPC分类号： G01S19/29 , G01S19/30
摘要： A GNSS receiver configured to detect a presence of at least one GNSS satellite signal in a received signal is provided. The GNSS receiver includes a buffer loaded with sample sets corresponding to the received signal and a Doppler derotation block configured to perform a Doppler derotation corresponding to at least one Doppler frequency on a sample set received from the buffer. The GNSS receiver further includes an accumulator block configured to perform a coherent accumulation of a plurality of sample sets upon or subsequent to the Doppler derotation corresponding to a Doppler frequency, and, a first memory configured to store the results of the coherent accumulation. A register array is configured to be loaded with the results stored in the first memory and a correlator engine is configured to generate correlation results by correlating the results in the register array with a plurality of code phases of GNSS satellites.
摘要翻译：提供了一种被配置为检测接收到的信号中至少一个GNSS卫星信号的存在的GNSS接收器。 GNSS接收机包括装载有与接收信号相对应的采样集的缓冲器和被配置为执行对应于从缓冲器接收的采样集上的至少一个多普勒频率的多普勒解旋的多普勒解旋转块。 GNSS接收器还包括累加器块，其被配置为在对应于多普勒频率的多普勒解旋之后或之后执行多个采样集的相干累积，以及被配置为存储相干累加的结果的第一存储器。寄存器阵列被配置为加载存储在第一存储器中的结果，并且相关器引擎被配置为通过将寄存器阵列中的结果与GNSS卫星的多个码相相关来产生相关结果。

10. 发明申请

US20120169538A1 ENHANCING SEARCH CAPACITY OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) RECEIVERS 有权
标题翻译：增强全球导航卫星系统（GNSS）接收机的搜索能力
公开(公告)号：US20120169538A1
公开(公告)日：2012-07-05
申请号：US12980360
申请日：2010-12-29
申请人： Jasbir SINGH , Jawaharlal Tangudu , Aravind Ganesan
发明人： Jasbir SINGH , Jawaharlal Tangudu , Aravind Ganesan
IPC分类号： G01S19/30 , G01S19/35 , G01S19/24
CPC分类号： G01S19/28 , G01R31/2851 , G01S19/24 , G01S19/30 , G01S19/37
摘要： Enhancing search capacity of Global Navigation Satellite System (GNSS) receivers. A method for searching satellite signals in a receiver includes performing a plurality of searches sequentially. The method also includes storing a result from each search of the plurality of searches in a consecutive section of a memory. Further, the method includes detecting free sections in the memory. The method also includes concatenating the free sections in the memory to yield a concatenated free section. Moreover, the method includes allocating the concatenated free section for performing an additional search.
摘要翻译：提高全球导航卫星系统（GNSS）接收机的搜索能力。用于在接收机中搜索卫星信号的方法包括顺序执行多个搜索。该方法还包括将来自多个搜索的每次搜索的结果存储在存储器的连续部分中。此外，该方法包括检测存储器中的空闲部分。该方法还包括连接存储器中的空闲部分以产生级联的自由部分。此外，该方法包括分配用于执行附加搜索的级联空闲部分。

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