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公开(公告)号：US11307267B1
公开(公告)日：2022-04-19
申请号：US17092865
申请日：2020-11-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Arup Polley , Srinath M. Ramaswamy , Baher S. Haroun
Abstract: A system includes a first amplifier and a first Hall sensor group coupled to the first amplifier. The system includes a second amplifier and a second Hall sensor group coupled to the second amplifier, where the second Hall sensor group includes a spinning Hall group. The system includes a first demodulator, where the first demodulator input is coupled to the first amplifier output. The system includes a second demodulator, where the second demodulator input is coupled to the second amplifier output. The system also includes a subtractor, the first subtractor input coupled to the first demodulator output, and the second subtractor input coupled to the second demodulator output. The system includes a filter coupled to the subtractor output and to a second input of the first amplifier, and a calibration module coupled to the subtractor output.
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公开(公告)号：US11247232B2
公开(公告)日：2022-02-15
申请号：US16053662
申请日：2018-08-02
Applicant: Texas Instruments Incorporated
Inventor： Krishnaswamy Nagaraj , Asif Qaiyum , Baher S. Haroun
IPC: B06B1/02 , G01F1/66 , H03K17/687
Abstract: In described examples, a first and second driver each include a first-rail output transistor including a first terminal coupled to a first power rail and a second-rail output transistor including a first terminal coupled to a second power rail. The first-rail output transistor of each of the first and second drivers includes a second terminal coupled to a second terminal of the second-rail output transistor of an output node of each respective first and second driver. A resistive load includes a first terminal coupled to the first-driver output node and includes a second terminal coupled to the second-driver output node. A sampling circuit generates an indication of an impedance of at least one of the output transistors of the first and second drivers.
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公开(公告)号：US20210325515A1
公开(公告)日：2021-10-21
申请号：US17349323
申请日：2021-06-16
Applicant: Texas Instruments Incorporated
Inventor： Nimal C. Warke , David P. Magee , Baher S. Haroun
IPC: G01S7/484 , G01S17/10 , G01S7/4865 , G01S17/36 , G01S17/42 , G01S7/4915
Abstract: An optical transmitting system for distance measuring includes a signal generator, a laser diode coupled to the signal generator, and an optics device. The signal generator is configured to generate a first plurality of electrical signals. The laser diode is configured to generate a first plurality of optical waveforms that correspond with the first plurality of electrical signals. The optics device is configured to receive the first plurality of optical waveforms and direct the first plurality of optical waveforms toward a first plurality of scan points that form a scan region within a field of view (FOV). A first signal type, a first signal duration, a first signal amplitude, or a first signal repetition frequency of the first plurality of optical waveforms is based on a first desired range of the first plurality of scan points.
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公开(公告)号：US11092674B2
公开(公告)日：2021-08-17
申请号：US15649413
申请日：2017-07-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nirmal C. Warke , David P. Magee , Baher S. Haroun
IPC: G01S7/48 , G01S7/484 , G01S17/10 , G01S7/4865 , G01S17/36 , G01S17/42 , G01S7/4915
Abstract: An optical transmitting system for distance measuring includes a signal generator, a laser diode coupled to the signal generator, and an optics device. The signal generator is configured to generate a first plurality of electrical signals. The laser diode is configured to generate a first plurality of optical waveforms that correspond with the first plurality of electrical signals. The optics device is configured to receive the first plurality of optical waveforms and direct the first plurality of optical waveforms toward a first plurality of scan points that form a scan region within a field of view (FOV). A first signal type, a first signal duration, a first signal amplitude, or a first signal repetition frequency of the first plurality of optical waveforms is based on a first desired range of the first plurality of scan points.
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公开(公告)号：US10908287B2
公开(公告)日：2021-02-02
申请号：US15396457
申请日：2016-12-31
Applicant: Texas Instruments Incorporated
Inventor： Nirmal C. Warke , David P. Magee , Baher S. Haroun
Abstract: In described examples, an integrated circuit includes a modulator configured to modulate a driving signal for an optical transmitter with a narrow band modulation signal in which the driving signal with a fixed duration is transmitted to the optical transmitter periodically. The integrated circuit also includes a demodulator configured to receive a signal from an optical receiver that is configured to receive a reflection of light transmitted by the optical transmitter off an object, the demodulator configured to discriminate the narrow band modulation signal and estimate a distance of the object using the narrow band modulation signal.
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Patent Agency Ranking
公开(公告)号：US20200295430A1
公开(公告)日：2020-09-17
申请号：US16837223
申请日：2020-04-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Baher S. Haroun
IPC: H01P3/16 , H01Q1/32 , G01S7/03 , G01S13/931
Abstract: A system is provided for transmitting sub-terahertz electro-magnetic radio frequency (RF) signals using a dielectric waveguide (DWG) having a dielectric core member surrounded by dielectric cladding. Multiple radar signals may be generated by a radar module that is coupled to a vehicle. A set of DWG segments may be used to transport the radar signals to various launching structures placed in various locations of the vehicle.
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公开(公告)号：US20200240811A1
公开(公告)日：2020-07-30
申请号：US16844547
申请日：2020-04-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Arup Polley , Srinath Ramaswamy , Baher S. Haroun , Rajarshi Mukhopadhyay
Abstract: A first amplifier has an input to receive a Hall-signal output current from a first Hall element and has an output to output feedback current in response to the received Hall-signal output current. The Hall-signal output current is impeded by an impedance of the first Hall element. The feedback current is coupled to counterpoise the Hall-signal output current at the input, and a voltage at the output is an amplified Hall output signal. A second amplifier generates a high-frequency portion output signal in response to a difference between the amplified Hall output signal and a Hall-signal output signal from a second Hall element. A filter reduces high-frequency content of the high-frequency portion output signal and generates an offset correction signal. A third amplifier generates a corrected Hall signal in response to a difference between the amplified Hall output signal and the offset correction signal.
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公开(公告)号：US20190204383A1
公开(公告)日：2019-07-04
申请号：US16294408
申请日：2019-03-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lee D. Whetsel , Baher S. Haroun , Brian J. Lasher , Anjali Vij
IPC: G01R31/3177 , G01R31/3185 , G01R31/317
CPC classification number: G01R31/3177 , G01R31/31727 , G01R31/318555
Abstract: IEEE 1149.1 Test Access Ports (TAPs) may be utilized at both IC and intellectual property core design levels. TAPs serve as serial communication ports for accessing a variety of embedded circuitry within ICs and cores including; IEEE 1149.1 boundary scan circuitry, built in test circuitry, internal scan circuitry, IEEE 1149.4 mixed signal test circuitry, IEEE P5001 in-circuit emulation circuitry, and IEEE P1532 in-system programming circuitry. Selectable access to TAPs within ICs is desirable since in many instances being able to access only the desired TAP(s) leads to improvements in the way testing, emulation, and programming may be performed within an IC. A TAP linking module is described that allows TAPs embedded within an IC to be selectively accessed using 1149.1 instruction scan operations.
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公开(公告)号：US10197638B2
公开(公告)日：2019-02-05
申请号：US15186383
申请日：2016-06-17
Applicant: Texas Instruments Incorporated
Inventor： Arup Polley , Srinath Ramaswamy , Baher S. Haroun , Rajarshi Mukhopadhyay
Abstract: A high bandwidth Hall sensor includes a high bandwidth path and a low bandwidth path. The relatively high offset (from sensor offset) of the high bandwidth path is estimated using a relatively low offset generated by the low bandwidth path. The relatively high offset of the high bandwidth path is substantially reduced by combining the output of the high bandwidth path with the output of the low bandwidth path to generate a high bandwidth, low offset output. The offset can be further reduced by including transimpedance amplifiers in the high bandwidth sensors to optimize the frequency response of high bandwidth Hall sensor.
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公开(公告)号：US10041811B2
公开(公告)日：2018-08-07
申请号：US15186394
申请日：2016-06-17
Applicant: Texas Instruments Incorporated
Inventor： Arup Polley , Srinath Ramaswamy , Baher S. Haroun , Rajarshi Mukhopadhyay
IPC: G01D5/14
Abstract: A high bandwidth Hall sensor includes, for example, a Hall element for generating a first polarity Hall-signal output current. An amplifier receives, at a first input, the first polarity Hall-signal output current and outputs a feedback current of a second polarity opposite the first polarity in response. The feedback current is coupled to the first input, and the feedback current suppresses an instantaneous voltage generated by the first polarity first Hall element output current at the first input. In an embodiment, the feedback current suppresses the instantaneous voltage generated by first polarity Hall element output current such that the effects of the Hall element source impedance are reduced.
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