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公开(公告)号：US09432163B2
公开(公告)日：2016-08-30
申请号：US14289264
申请日：2014-05-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Badri N. Varadarajan , Anand Ganesh Dabak , Tarkesh Pande , Eko N. Onggosanusi
CPC classification number: H04L5/0048 , H04B1/04 , H04L23/02 , H04L25/0202 , H04L27/2607 , H04L27/2613 , H04L27/2649
Abstract: In one embodiment, a transmitter includes a binary sequence generator unit configured to provide a sequence of reference signal bits, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to the transmitter and one or more time indices of the sequence. The transmitter also include a mapping unit that transforms the sequence of reference signal bits into a complex reference signal, and a transmit unit configured to transmit the complex reference signal. In another embodiment, a receiver includes a receive unit configured to receive a complex reference signal and a reference signal decoder unit configured to detect a sequence of reference signal bits from the complex reference signal, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to a transmitter and one or more time indices of the sequence.
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公开(公告)号：US12185261B2
公开(公告)日：2024-12-31
申请号：US16459201
申请日：2019-07-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anand Ganesh Dabak , Eko Nugroho Onggosanusi , Badri Varadarajan
Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.
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公开(公告)号：US12058630B2
公开(公告)日：2024-08-06
申请号：US16459201
申请日：2019-07-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anand Ganesh Dabak , Eko Nugroho Onggosanusi , Badri Varadarajan
CPC classification number: H04W56/001 , H04B7/2681 , H04W36/0016 , H04W36/0072
Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.
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公开(公告)号：US20240248162A1
公开(公告)日：2024-07-25
申请号：US18439335
申请日：2024-02-12
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Yaron Alpert , Matan Ben-Shachar , Anand Ganesh Dabak , Brian Ginsburg
CPC classification number: G01S1/045 , G01S19/254 , G01S19/30
Abstract: One example includes a passive radar receiver system including an RF receiver front-end to receive a wireless source signal and a reflected signal. An antenna switch of the front-end switches a first antenna to a receiver chain during a first time to generate first radar signal data based on a combined wireless signal comprising wireless source signal and the reflected signal, and switches a second antenna to the receiver chain during a second time to generate second radar signal data based on the combined wireless signal. A signal processor generates source signal data associated with the wireless source signal based on the first and second radar signal data and generates reflected signal data associated with the reflected signal based on the first and second radar signal data, and generates target radar data associated with a target based on the source and reflected radar signal data.
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公开(公告)号：US11733377B2
公开(公告)日：2023-08-22
申请号：US16364652
申请日：2019-03-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lei Ding , Srinath Mathur Ramaswamy , Anand Gopalan , Vaibhav Garg , Anand Ganesh Dabak , Baher S. Haroun
IPC: G01S15/10 , G01S15/931 , G01S15/32 , G01S15/58
CPC classification number: G01S15/104 , G01S15/325 , G01S15/582 , G01S15/931 , G01S2015/938
Abstract: In an ultrasonic detection system that uses frequency-modulation or phase-modulation coding to distinguish emitted bursts from multiple transducers, a receiver associated with a transducer uses peak search, peak buffer, and peak rank stages in one or more receiver signal processing paths to identify valid received ultrasonic signal envelope peaks in correlator outputs. The peak rank stage can support different modes respectively designed to handle one code, two or more codes, or two or more codes with support for Doppler frequency shift detection. Valid peak information (e.g., amplitude and time) can be reported to a central controller and/or stored locally in a fusion stage to generate more intelligent information for targets or obstacles using peaks from multiple bursts.
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Patent Agency Ranking
公开(公告)号：US09584542B2
公开(公告)日：2017-02-28
申请号：US14614038
申请日：2015-02-04
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hun-Seok Kim , Anand Ganesh Dabak , Jing-Fei Ren , Manish Goel
CPC classification number: H04L63/1466 , H04K1/003 , H04K3/25 , H04K3/46 , H04K3/65 , H04K3/827 , H04K3/86 , H04K2203/22 , H04L9/3271 , H04L67/12 , H04L2209/805 , H04W12/12
Abstract: An apparatus for preventing a relay attack that includes a microcontroller, a receiver, and a transmitter. The receiver is configured to receive a challenge message from a verifier. The challenge message has a challenge message frequency at a first challenge message frequency during a first time slot. The transmitter is configured to transmit a response message to the verifier. The response message has a response message frequency at a first response message frequency during the first time slot. The first response message frequency is different than the first challenge message frequency. The challenge message frequency is at a second challenge message frequency and the response message frequency is at a second response message frequency during a second time slit. The second challenge message frequency is different than the second response message frequency.
Abstract translation: 一种用于防止包括微控制器，接收器和发射器的中继攻击的装置。 接收器被配置为从验证器接收挑战消息。 挑战消息在第一时隙期间在第一挑战消息频率处具有挑战消息频率。 发送器被配置为向验证者发送响应消息。 响应消息在第一时隙期间具有在第一响应消息频率处的响应消息频率。 第一响应消息频率与第一挑战消息频率不同。 挑战消息频率处于第二挑战消息频率，并且响应消息频率在第二时间缝隙期间处于第二响应消息频率。 第二挑战消息频率与第二响应消息频率不同。
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公开(公告)号：US09294170B2
公开(公告)日：2016-03-22
申请号：US14747908
申请日：2015-06-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Runhua Chen , Eko Nugroho Onggosanusi , Badri Varadarajan , Anand Ganesh Dabak
CPC classification number: H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0639
Abstract: The present disclosure provides a receiver, a transmitter and methods of operating a receiver or a transmitter. In one embodiment, the receiver includes a receive unit configured to receive transmissions from multiple antennas. The receiver also includes a rank feedback unit configured to feed back a transmission rank selection, wherein the transmission rank selection corresponds to a transmission rank feedback reduction scheme. The receiver further includes a precoding feedback unit configured to feed back a preceding matrix selection, wherein the preceding matrix selection corresponds to a preceding matrix feedback reduction schemes.
Abstract translation: 本公开提供了一种接收机，发射机和操作接收机或发射机的方法。 在一个实施例中，接收机包括被配置为从多个天线接收传输的接收单元。 接收机还包括配置为反馈传输等级选择的秩反馈单元，其中传输等级选择对应于传输秩反馈降低方案。 所述接收机还包括配置为反馈先前矩阵选择的预编码反馈单元，其中所述先前矩阵选择对应于先前的矩阵反馈减少方案。
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公开(公告)号：US20150295627A1
公开(公告)日：2015-10-15
申请号：US14747908
申请日：2015-06-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Runhua Chen , Eko Nugroho Onggosanusi , Badri Varadarajan , Anand Ganesh Dabak
CPC classification number: H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0639
Abstract: The present disclosure provides a receiver, a transmitter and methods of operating a receiver or a transmitter. In one embodiment, the receiver includes a receive unit configured to receive transmissions from multiple antennas. The receiver also includes a rank feedback unit configured to feed back a transmission rank selection, wherein the transmission rank selection corresponds to a transmission rank feedback reduction scheme. The receiver further includes a precoding feedback unit configured to feed back a preceding matrix selection, wherein the preceding matrix selection corresponds to a preceding matrix feedback reduction schemes.
Abstract translation: 本公开提供了一种接收机，发射机和操作接收机或发射机的方法。 在一个实施例中，接收机包括被配置为从多个天线接收传输的接收单元。 接收机还包括配置为反馈传输等级选择的秩反馈单元，其中传输等级选择对应于传输秩反馈降低方案。 所述接收机还包括配置为反馈先前矩阵选择的预编码反馈单元，其中所述先前矩阵选择对应于先前的矩阵反馈减少方案。
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公开(公告)号：US20220216961A1
公开(公告)日：2022-07-07
申请号：US17699826
申请日：2022-03-21
Applicant: Texas Instruments Incorporated
Inventor： Timothy Mark Schmidl , Eko Nugroho Onggosanusi , Anand Ganesh Dabak , Aris Papasakellariou
Abstract: A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
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公开(公告)号：US09742499B2
公开(公告)日：2017-08-22
申请号：US14969852
申请日：2015-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mehmet Ali Donmez , Anand Ganesh Dabak , Il Han Kim , Timothy Mark Schmidl
IPC: H04L27/14 , H04B10/556 , H04B3/10 , H04L5/00
CPC classification number: H04B10/556 , H04B3/10 , H04L5/0048 , H04L27/106 , H04L27/14
Abstract: An ultrasonic communication circuit is disclosed. The circuit includes an ultrasonic transmitter arranged to transmit a training signal having a frequency to a remote transceiver over an ultrasonic communication channel. An ultrasonic receiver is arranged to receive information from the remote transceiver in response to the training signal. The ultrasonic transmitter is arranged to transmit a data signal to the remote transceiver. The data signal has a duty cycle determined by the information.
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