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公开(公告)号：US20220136878A1
公开(公告)日：2022-05-05
申请号：US17574650
申请日：2022-01-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anand Dabak , Venkata Ramanan
Abstract: A method of calculating a time difference is disclosed. The method includes sampling a first ultrasonic signal (r21) to produce a first sampled signal (y1(i)) and sampling a second ultrasonic signal (r12) to produce a second sampled signal (y2(i)). A first time (LEAD_LAG) is determined between a time the first sampled signal crosses a threshold (θ1) and a time the second sampled signal crosses the threshold. The first sampled signal is cross correlated with the second sampled signal to produce a second time (SAMP_OFFSET). The time difference is calculated in response to the first and second times.
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公开(公告)号：US10809365B2
公开(公告)日：2020-10-20
申请号：US14833916
申请日：2015-08-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujeet Milind Patole , Anand Dabak , Lei Ding , Murtaza Ali
Abstract: A frequency modulated continuous wave (FMCW) radar system that includes a transceiver coupled to an analog to digital converter (ADC), and a digital signal processor (DSP) coupled to the ADC. The transceiver is configured to transmit a plurality of FMCW chirps, receive a plurality of reflected FMCW chirps, and mix the plurality of reflected FMCW chirps with at least one of the FMCW chirps to generate a plurality of beat signals. The reflected FMCW chirps are the FMCW chirps after being reflected off of a target object. The ADC is configured to convert the beat signals into a plurality of digital chirps. The DSP is configured to receive the digital chirps and quantify a plurality of vibration parameters for the target object based on a comparison of phase information in a frequency domain between one of the plurality of FMCW chirps and one of the plurality of digital chirps.
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公开(公告)号：US10801868B2
公开(公告)日：2020-10-13
申请号：US14300303
申请日：2014-06-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anand Dabak , Venkata Ramanan
Abstract: A method of calculating a time difference is disclosed. The method includes sampling a first ultrasonic signal (r21) to produce a first sampled signal (y1(i)) and sampling a second ultrasonic signal (r12) to produce a second sampled signal (y2(i)). A first time (LEAD_LAG) is determined between a time the first sampled signal crosses a threshold (θ1) and a time the second sampled signal crosses the threshold. The first sampled signal is cross correlated with the second sampled signal to produce a second time (SAMP_OFFSET). The time difference is calculated in response to the first and second times.
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公开(公告)号：US20180266860A1
公开(公告)日：2018-09-20
申请号：US15987129
申请日：2018-05-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： R Venkata Ramanan , Anand Dabak , Amardeep Sathyanarayana
CPC classification number: G01F1/667 , G01F25/0007
Abstract: A method, system and apparatus is disclosed for auto-tuning a circuit associated with an upstream transducer (UPT) and a circuit associated with a downstream transducer (DNT) for reciprocal operation in an ultrasonic flowmeter. The method includes exchanging signals between the upstream transducer and the downstream transducer; comparing at least one of respective maximum amplitudes of an upstream signal and a downstream signal and respective center frequencies of a Fast Fourier Transform (FFT) of the upstream signal and the downstream signal; and responsive to determining that at least one of the respective maximum amplitudes and the respective center frequencies do not match, correcting the mismatch.
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公开(公告)号：US09811136B2
公开(公告)日：2017-11-07
申请号：US15063001
申请日：2016-03-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Deric W. Waters , Srinath Hosur , Anand Dabak
Abstract: A VBUS conductor is checked to determine whether a voltage on the VBUS conductor is greater than a vSafe0V voltage within a detect time interval. A device policy manager applies a vSafeDB voltage to the VBUS conductor when the voltage on the VBUS conductor is greater than the vSafe0V voltage. The policy engine waits for a bit stream to be detected within a timer interval. When the bit stream is not detected within the timer interval, the device policy manager is instructed to apply the vSafe0V voltage to the VBUS conductor. The device policy manager applies a vSafe5V voltage to the VBUS conductor when the bit stream is detected, and the policy engine waits for the bit stream to stop within a device ready timer interval. When the bit stream has stopped within the device ready timer interval, the policy engine sends capabilities as a source port.
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Patent Agency Ranking
公开(公告)号：US09784828B2
公开(公告)日：2017-10-10
申请号：US14836521
申请日：2015-08-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujeet Milind Patole , Anand Dabak , Lei Ding
CPC classification number: G01S13/584 , G01S7/352 , G01S13/343
Abstract: A frequency modulated continuous wave (FMCW) radar system that includes a transceiver coupled to an analog to digital converter (ADC), and a digital signal processor (DSP) coupled to the ADC. The transceiver is configured to transmit a plurality of FMCW chirps, receive a plurality of reflected FMCW chirps, and mix the reflected FMCW chirps with at least one of the FMCW chirps to generate a plurality of beat signals. The reflected FMCW chirps are the FMCW chirps after being reflected off of a target object. The ADC is configured to convert the beat signals into a plurality of digital chirps. The DSP is configured to receive the digital chirps and quantify a relative velocity of the target object as compared to a velocity of the FMCW radar system by removing an effect of a range to the target object from a two dimensional range Doppler processing signal.
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27.发明授权公开(公告)号：US09503156B2
公开(公告)日：2016-11-22
申请号：US15045909
申请日：2016-02-17
Applicant: Texas Instruments Incorporated
Inventor： Ramanuja Vedantham , Anand Dabak , Tarkesh Pande
CPC classification number: H04B3/54 , H04B3/546 , H04B2203/5408 , H04B2203/5433 , H04B2203/5445 , H04L5/14
Abstract: Systems and methods for enabling co-existence among power line communications (PLC) technologies are described. In some embodiments, a method performed by a PLC device, such as a PLC gateway, may include searching for and detecting a co-existence preamble on a PLC network while not transmitting or receiving frames. The device waits a time period before attempting transmission of a frame if the coexistence preamble is detected and is not followed by a native preamble. Transmissions are resumed to the PLC network after expiration of the time period.
Abstract translation: 描述了实现电力线通信（PLC）技术共存的系统和方法。 在一些实施例中，由诸如PLC网关的PLC设备执行的方法可以包括在不发送或接收帧的情况下在PLC网络上搜索和检测共存前导码。 如果检测到共存前导码，则设备在尝试发送帧之前等待一段时间，并且不跟随本机前同步码。 传输在该时间段到期后恢复到PLC网络。
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公开(公告)号：US09002665B2
公开(公告)日：2015-04-07
申请号：US13895269
申请日：2013-05-15
Applicant: Texas Instruments, Incorporated
Inventor： Ravindra Karnad , Venkata Ramanan Ramamurthy , Anand Dabak , Venu Gopinathan
CPC classification number: G01F1/66 , G01F1/663 , G01F15/063 , G01F15/0755
Abstract: A multi-channel flow sensing system typically includes first and second flow-sensing transducers arranged in each channel. A data acquisition system is coupled to the first and second transducers of each of the channels. The data acquisition system is arranged to transmit and/or receive a sensing signal from at least one of the first and second transducers of each of the channels. The received sensing signals are sequentially converted and accumulated as data for billing in accordance with the measured flow within each channel. Using common components within the data acquisition system for measuring the various channels reduces costs and increases affordability in cost-sensitive areas.
Abstract translation: 多通道流量检测系统通常包括布置在每个通道中的第一和第二流量感测换能器。 数据采集系统耦合到每个通道的第一和第二换能器。 数据采集系统被布置成从每个通道的第一和第二换能器中的至少一个发送和/或接收感测信号。 接收到的感测信号按照每个信道内的测量流顺序地转换和累积为用于计费的数据。 在数据采集系统中使用通用组件来测量各种通道可以降低成本并提高成本敏感区域的可负担性。
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公开(公告)号：US20140338467A1
公开(公告)日：2014-11-20
申请号：US13895269
申请日：2013-05-15
Applicant: Texas Instruments, Incorporated
Inventor： Ravindra Karnad , Venkata Ramanan Ramamurthy , Anand Dabak , Venu Gopinathan
IPC: G01F1/66
CPC classification number: G01F1/66 , G01F1/663 , G01F15/063 , G01F15/0755
Abstract: A multi-channel flow sensing system typically includes first and second flow-sensing transducers arranged in each channel. A data acquisition system is coupled to the first and second transducers of each of the channels. The data acquisition system is arranged to transmit and/or receive a sensing signal from at least one of the first and second transducers of each of the channels. The received sensing signals are sequentially converted and accumulated as data for billing in accordance with the measured flow within each channel. Using common components within the data acquisition system for measuring the various channels reduces costs and increases affordability in cost-sensitive areas.
Abstract translation: 多通道流量检测系统通常包括布置在每个通道中的第一和第二流量感测换能器。 数据采集系统耦合到每个通道的第一和第二换能器。 数据采集系统被布置成从每个通道的第一和第二换能器中的至少一个发送和/或接收感测信号。 接收到的感测信号按照每个信道内的测量流顺序地转换和累积为用于计费的数据。 在数据采集系统中使用通用组件来测量各种通道可以降低成本并提高成本敏感区域的可负担性。
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公开(公告)号：US20140305215A1
公开(公告)日：2014-10-16
申请号：US13860409
申请日：2013-04-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Anand Dabak , Clive Bittlestone
IPC: G01F1/66
CPC classification number: G01F1/66 , G01F1/667 , G01F15/061 , H04Q9/00 , H04Q2209/60
Abstract: A flow meter ultrasonically measures fluid velocity in a pipe and ultrasonically transmits fluid flow data along the pipe. An ultrasonic transducer used for fluid velocity measurement may optionally also be used for communication of flow data, and optionally, the ultrasonic frequency for fluid velocity measurement may be the same as the ultrasonic frequency for communication of flow data.
Abstract translation: 流量计超声波地测量管道中的流体速度，并且沿着管道超声波地传输流体流动数据。 用于流体速度测量的超声换能器还可以用于流动数据的通信，并且可选地，用于流体速度测量的超声波频率可以与用于通信流量数据的超声波频率相同。
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