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公开(公告)号：US09722638B2
公开(公告)日：2017-08-01
申请号：US14744220
申请日：2015-06-19
发明人： Timothy J. Talty , Andrew J. MacDonald , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04B1/006 , H04B1/0017
摘要： A cellular radio architecture for a vehicle that includes a triplexer coupled to an antenna structure and including three signal paths, where each signal path includes a bandpass filter that passes a different frequency band than the other bandpass filters and a circulator that provides signal isolation between the transmit signals and the receive signals. The architecture also includes a receiver module having a separate signal channel for each of the signal paths in the triplexer, where each signal channel in the receiver module includes a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The delta-sigma modulator includes an LC filter having a plurality of LC resonator circuits, a plurality of transconductance amplifiers and a plurality of integrator circuits, where a combination of one resonator circuit, transconductance amplifier and integrator circuit represents a two-order stage of the LC filter.
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公开(公告)号：US09660690B2
公开(公告)日：2017-05-23
申请号：US15103309
申请日：2015-11-06
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04B1/52 , H04B1/00 , H04B1/0007 , H04B1/0057 , H04B1/0483 , H04B1/18 , H04B1/401 , H04B1/48 , H04L25/02
摘要： A cellular radio architecture that includes a receiver module having a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture further includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals. Portions of the receiver and transmitter modules are fabricated with silicon germanium (SiGe) technologies and portions of the receiver and transmitter modules are fabricated with CMOS technologies.
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公开(公告)号：US09648562B2
公开(公告)日：2017-05-09
申请号：US15218581
申请日：2016-07-25
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04W52/0209 , H04B1/006 , H04B1/0475 , H04B1/1018 , Y02D70/1224 , Y02D70/142 , Y02D70/40
摘要： A transceiver front-end circuit for a cellular radio architecture for a vehicle, where the transceiver circuit employs components for reducing power consumption. The transceiver circuit includes a receiver module having a delta-sigma modulator that converts analog receive signals to a representative digital signal in an interleaving process, where the delta-sigma modulator includes a combiner, a low noise amplifier (LNA), an LC filter and a quantizer circuit. The LC filter is a multi-order filter and the quantizer circuit is an interleaving quantizer circuit that interleaves multiple groups of bits from the filter. The order of the LC filter is selectively reduced in situations where a full dynamic range of the cellular radio is not required and a bit resolution of the quantizer circuit is reduced so as to reduce the power requirements of the cellular radio.
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公开(公告)号：US09608661B2
公开(公告)日：2017-03-28
申请号：US15103256
申请日：2015-11-06
发明人： Timothy J. Talty , Cynthia D. Baringer , Andrew J. MacDonald , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan , Hsuanyu Pan , Emilio A. Sovero
IPC分类号： H04B1/40 , H03M1/66 , H04B1/00 , H04B1/04 , H04B1/3822 , H04L1/00 , H03M1/06 , H03M1/36 , H03M3/00
CPC分类号： H04B1/0475 , H03F3/24 , H03M1/0673 , H03M1/365 , H03M1/662 , H03M3/408 , H03M3/424 , H04B1/0007 , H04B1/1036 , H04B1/3822 , H04B1/40 , H04B2001/0408 , H04B2001/0425 , H04B2001/1063 , H04L1/0071
摘要： A cellular radio architecture that includes a programmable bandpass sampling radio frequency front-end and an optimized digital baseband. The architecture includes a multiplexer having signal paths that include a bandpass filter that passes a different frequency band than the other bandpass filters and a circulator that provides signal isolation between the transmit signals and the receive signals. The architecture also includes a receiver module having a separate signal channel for each of the signal paths in the multiplexer, where each signal channel in the receiver module includes a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture further includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals, where the transmitter module includes a power amplifier and a switch for directing the transmit signals to one of the signal paths in the multiplexer.
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5.发明申请HIGH OVERSAMPLING RATIO DYNAMIC ELEMENT MATCHING SCHEME FOR HIGH DYNAMIC RANGE DIGITAL TO RF DATA CONVERSION FOR CELLULAR COMMUNICATIONS 有权用于高动态范围数字的高超压比动态元件匹配方案用于细胞通信的RF数据转换公开(公告)号：US20150372699A1
公开(公告)日：2015-12-24
申请号：US14744246
申请日：2015-06-19
发明人： TIMOTHY J. TALTY , Zhiwei A. Xu , Mohiuddin Ahmed , Cynthia D. Baringer , Al Cosand , James Chingwei Li , Yen-Cheng Kuan , Peter Petre
CPC分类号： H04B1/0003 , H03M3/338 , H03M3/408 , H03M3/466 , H03M3/502
摘要： An RF transmitter module for a cellular radio that includes a delta-sigma modulator having a plurality of interleaving dynamic element matching (DEM) circuits providing interleaved digital bits at a reduced clock rate. An interleaver controller controls the DEM circuits so as to provide groups of the digital bits at different points in time. In one embodiment, a summation junction adds the groups of the digital bits to provide a continuous stream of the interleaved digital bits, a DAC converts the stream of interleaved digital bits to an analog signal, and a power amplifier amplifies the analog signal.
摘要翻译： 一种用于蜂窝无线电的RF发射机模块，其包括具有多个交织动态元素匹配（DEM）电路的delta-sigma调制器，以降低的时钟速率提供交织的数字比特。 交织器控制器控制DEM电路，以便在不同的时间点提供数字比特组。 在一个实施例中，加法结加上数字位组以提供交错数字位的连续流，DAC将交错数字位流转换为模拟信号，功率放大器放大模拟信号。
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公开(公告)号：US09698845B2
公开(公告)日：2017-07-04
申请号：US15103298
申请日：2015-11-06
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04B1/3822 , H03F3/24 , H03M3/338 , H03M3/408 , H03M3/458 , H03M3/502 , H03M13/27 , H04B1/04 , H04B2001/0408 , H04L1/0071 , H04L25/02
摘要： An RF transmitter module for a cellular radio that includes a delta-sigma modulator having a plurality of interleaving dynamic element matching (DEM) circuits providing interleaved digital bits at a reduced clock rate. An interleaver controller controls the DEM circuits so as to provide groups of the digital bits at different points in time. In one embodiment, a summation junction adds the groups of the digital bits to provide a continuous stream of the interleaved digital bits, a DAC converts the stream of interleaved digital bits to an analog signal, and a power amplifier amplifies the analog signal.
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公开(公告)号：US09622173B2
公开(公告)日：2017-04-11
申请号：US14744280
申请日：2015-06-19
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04W52/0209 , H04B1/006 , H04B1/0475 , H04B1/1018 , Y02D70/1224 , Y02D70/142 , Y02D70/40
摘要： A method for reducing power consumption in a transceiver front-end circuit for a cellular radio. The transceiver circuit includes a receiver module having a delta-sigma modulator that converts analog receive signals to a representative digital signal in an interleaving process, where the delta-sigma modulator includes a combiner, a low noise amplifier (LNA), an LC filter and a quantizer circuit. The LC filter is a multi-order filter and the quantizer circuit is an interleaving quantizer circuit that interleaves multiple groups of bits from the filter. The method includes selectively reducing the order of the LC filter in situations where a full dynamic range of the cellular radio is not required and reducing a bit resolution of the quantizer circuit so as to reduce the power requirements of the cellular radio.
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公开(公告)号：US09985809B2
公开(公告)日：2018-05-29
申请号：US15103310
申请日：2015-11-06
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
摘要： A cellular radio architecture that includes a programmable bandpass sampling radio frequency front-end and an optimized digital baseband. The architecture includes a receiver module having a plurality of signal channels for different frequency bands, where each signal channel in the receiver module includes a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture also includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals, where the transmitter module includes a power amplifier and a switch for directing the transmit signals to one of the signal paths. The architecture also includes a dual self-cancellation circuit providing digital and analog cancellation of the transmit signal in the receiver module.
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公开(公告)号：US09853843B2
公开(公告)日：2017-12-26
申请号：US15103287
申请日：2015-11-06
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
摘要： A cellular radio architecture that includes a multiplexer coupled to an antenna structure and including multiple signal paths, where each signal path includes a bandpass filter that passes a different frequency band than the other bandpass filters and a circulator that provides signal isolation between the transmit signals and the receive signals. The architecture also includes a receiver module having a separate signal channel for each of the signal paths in the multiplexer, where each signal channel in the receiver module includes a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The delta-sigma modulator includes an LC filter having a plurality of LC resonator circuits, a plurality of transconductance amplifiers and a plurality of integrator circuits, where a combination of one resonator circuit, transconductance amplifier and integrator circuit represents a two-order stage of the LC filter.
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10.发明授权公开(公告)号：US09780942B2
公开(公告)日：2017-10-03
申请号：US14744303
申请日：2015-06-19
发明人： Timothy J. Talty , Cynthia D. Baringer , Mohiuddin Ahmed , Albert E. Cosand , James Chingwei Li , Peter Petre , Zhiwei A. Xu , Yen-Cheng Kuan
CPC分类号： H04L5/1461 , H04B1/001 , H04L5/001 , H04L5/0023
摘要： A cellular radio architecture for a vehicle that includes a receiver module having a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture further includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals. Portions of the receiver and transmitter modules are fabricated with indium phosphide (InP) technologies and portions of the receiver and transmitter modules are fabricated with CMOS technologies.
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