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公开(公告)号：US20230238410A1
公开(公告)日：2023-07-27
申请号：US17586001
申请日：2022-01-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Henry Edwards , Rahmi Hezar , Udumbara Wijesinghe , Wenjuan Fan , Gerd Schuppener
IPC: H01L27/146
CPC classification number: H01L27/14623 , H01L27/14643 , H01L27/1463 , H01L27/14685
Abstract: The present disclosure generally relates to a surface grating in a photodetector device. In an example, a semiconductor device structure includes a photodetector device. The photodetector device includes one or more photodiodes disposed in or over a semiconductor substrate, and includes a surface grating disposed at a respective surface of each photodiode of the one or more photodiodes. The surface grating has one or more periodicities. Each periodicity of the one or more periodicities has a period that is along a direction parallel to a first lateral direction across the semiconductor substrate and that is equal to or less than half of a dimension of at least one photodiode of the one or more photodiodes along a direction parallel to the first lateral direction. The one or more periodicities includes multiple different pitches.
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公开(公告)号：US11140478B2
公开(公告)日：2021-10-05
申请号：US15930957
申请日：2020-05-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rahmi Hezar , Rajan Narasimha , Srinath Ramaswamy
Abstract: A system for driving an audio speaker that has an impedance, the system comprising: a scaler having an analog input and a scaler output that is an attenuated analog input; an amplifier having an amplifier input coupled to the scaler output and an amplifier output; a current sensor having a sensor input coupled to the speaker and a sensor output, the current sensor configured to generate a sensor signal at the sensor output responsive to a current from the audio speaker; and a compensator circuit having a circuit input coupled to the sensor output and a circuit output coupled to the amplifier input, the compensator circuit configured to supply a compensation signal to the amplifier input by applying a transfer function to the sensor signal.
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公开(公告)号：US10666204B2
公开(公告)日：2020-05-26
申请号：US16173830
申请日：2018-10-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aritra Banerjee , Nathan R. Schemm , Rahmi Hezar , Lei Ding , Baher Haroun
IPC: H03F3/191 , H03F1/42 , H03F1/02 , H03F3/19 , H03F3/21 , B81B7/02 , H03F1/22 , H03F3/195 , H03F3/24 , H03F1/56 , H03F3/193 , H01L23/66 , H01G5/16 , H01G5/38 , H01G5/40
Abstract: A circuit includes an amplifier to amplify an input signal and generate an output signal. The circuit also includes a tuning network to tune frequency response of the amplifier. The tuning network includes at least one tunable capacitor, which includes at least one micro-electro mechanical system (MEMS) capacitor. The amplifier could include a first die, the at least one MEMS capacitor could include a second die, and the first die and the second die could be integrated in a single package. The at least one MEMS capacitor could include a MEMS superstructure over a control structure, which is to control the MEMS superstructure and tune the capacitance of the at least one MEMS capacitor.
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公开(公告)号：US20190173438A1
公开(公告)日：2019-06-06
申请号：US16259100
申请日：2019-01-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aritra Banerjee , Rahmi Hezar , Lei Ding , Nathan Richard Schemm
Abstract: A first branch group circuit includes a first branch circuit receiving a first RF input signal and first control information; and a second branch circuit receiving the first input signal and second control information. Each of the first and second branch circuits includes a power amplifier. The second control information enables the second branch circuit to be switched on or off while the first branch circuit remains on. A second branch group circuit includes: a third branch circuit receiving a second RF input signal and third control information; and a fourth branch circuit receiving the second input signal and fourth control information. Each of the third and fourth branch circuits includes a power amplifier. The fourth control information enables the fourth branch circuit to be switched on or off while the third branch circuit remains on. A combiner combines output signals of the power amplifiers to produce an output signal.
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公开(公告)号：US20190068135A1
公开(公告)日：2019-02-28
申请号：US16173830
申请日：2018-10-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aritra Banerjee , Nathan R. Schemm , Rahmi Hezar , Lei Ding , Baher Haroun
CPC classification number: H03F1/42 , B81B7/02 , B81B2207/99 , H01G5/16 , H01G5/38 , H01G5/40 , H01L23/66 , H01L2223/6655 , H03F1/0205 , H03F1/0294 , H03F1/223 , H03F1/565 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/245 , H03F2200/111 , H03F2200/378 , H03F2200/391 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03F2200/546 , H03F2203/21157
Abstract: A circuit includes an amplifier to amplify an input signal and generate an output signal. The circuit also includes a tuning network to tune frequency response of the amplifier. The tuning network includes at least one tunable capacitor, which includes at least one micro-electro mechanical system (MEMS) capacitor. The amplifier could include a first die, the at least one MEMS capacitor could include a second die, and the first die and the second die could be integrated in a single package. The at least one MEMS capacitor could include a MEMS superstructure over a control structure, which is to control the MEMS superstructure and tune the capacitance of the at least one MEMS capacitor.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10044257B1
公开(公告)日：2018-08-07
申请号：US15424426
申请日：2017-02-03
Applicant: Texas Instruments Incorporated
Inventor： Rahmi Hezar , Jeffrey Morroni
Abstract: Methods and apparatus for providing adaptive electromagnetic interference control in a power converter are disclosed. An example apparatus includes a current interface to measure an internal current of the power converter. The example apparatus further includes a performance determiner to determine a spur power of an output voltage of the power converter based on the measured internal current. The example apparatus further includes a ramp generator to adjust a hopping configuration of a ramp voltage based on the spur power.
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7.发明申请公开(公告)号：US20180006609A1
公开(公告)日：2018-01-04
申请号：US15708168
申请日：2017-09-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aritra Banerjee , Joonhoi Hur , Baher Haroun , Nathan Richard Schemm , Rahmi Hezar , Lei Ding
CPC classification number: H03F1/0205 , H03F1/0294 , H03F3/193 , H03F3/211 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03F3/2176 , H03F3/45179 , H03F2200/391 , H03F2200/451 , H03F2203/21139 , H03F2203/21142
Abstract: An outphasing amplifier includes a first class-E power amplifier having an output coupled to a first conductor and an input receiving a first RF drive signal. A first reactive element is coupled between the first conductor and a second conductor. A second reactive element is coupled between the second conductor and a third conductor. A second class-E power amplifier includes an output coupled to a fourth conductor and an input coupled to a second RF drive signal, a third reactive element coupled between the second and fourth conductors. Outputs of the first and second power amplifiers are combined by the first, second and third reactive elements to produce an output current in a load. An efficiency enhancement circuit is coupled between the first and fourth conductors to improve power efficiency at back-off power levels. Power enhancement circuits are coupled to the first and fourth conductors, respectively.
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公开(公告)号：US09800272B2
公开(公告)日：2017-10-24
申请号：US14136156
申请日：2013-12-20
Applicant: Texas Instruments Incorporated
Inventor： Rahmi Hezar , Lei Ding , Joonhoi Hur
CPC classification number: H04B1/04 , H03F1/0294 , H03F3/2175 , H03F3/24 , H04L27/206 , H04L27/2602
Abstract: For generating quantized signals, a quantized phase domain related to quantized phases of an input signal is generated. Vectors that the input signal may occupy are calculated based on the quantized phase domain. A first quantized phase of a first component of the input signal is generated per the quantized phase domain, and a second quantized phase of a second component of the input signal is generated per the quantized phase domain.
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公开(公告)号：US20170093279A1
公开(公告)日：2017-03-30
申请号：US14871140
申请日：2015-09-30
Applicant: Texas Instruments Incorporated
Inventor： Rahmi Hezar , Nikolaus Klemmer
Abstract: Noise-shaped frequency hopping power converters are disclosed. An example noise-shaped frequency hopping power converter comprises a shaped number generator having a first output to output a noise-shaped selection signal and a power converter having a first input to receive an input voltage signal, a second input to receive a switching signal that is based on the noise-shaped selection signal, and a second output to output an output voltage signal based on the switching signal.
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公开(公告)号：US20160191294A1
公开(公告)日：2016-06-30
申请号：US15063146
申请日：2016-03-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rahmi Hezar , Lei Ding , Baher Haroun
CPC classification number: H04L27/3411 , H03F1/02 , H03F1/0294 , H03F3/19 , H03F3/2175 , H03F3/245 , H03F2200/331 , H03F2200/336 , H03F2200/451 , H04B1/02 , H04B14/062 , H04L27/2053
Abstract: At least one tone is generated. An output signal is generated in response to an input signal and the at least one tone. The output signal is modulated. The input signal and the at least one tone are represented in the modulated output signal. The at least one tone is outside a bandwidth of the input signal as represented in the modulated output signal. The modulated output signal is amplified. The at least one tone in the amplified signal is attenuated after the amplifying.
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