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公开(公告)号：US20210408983A1
公开(公告)日：2021-12-30
申请号：US17366964
申请日：2021-07-02
Applicant: Apple Inc.
Inventor： Utku Seckin , Hanwen Yang
Abstract: A switching power amplifier includes logic circuitry that generates first and second components of a differential signal, based on received amplitude code and a delayed version of the same. The amplitude code includes a sign and a magnitude. When the sign is positive, a first logic path is configured to generate the first component based on the received amplitude code and the second logic path is configured to generate the second component based on the delayed amplitude code. When the sign is negative, the first logic path is configured to generate the first component based on the delayed amplitude code and the second logic path is configured to generate the second component based on the received amplitude code. The switching power amplifier further includes a differential-to-single ended conversion circuit configured to generate a single-ended signal based on the differential signal.
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公开(公告)号：US11095252B1
公开(公告)日：2021-08-17
申请号：US17026056
申请日：2020-09-18
Applicant: Apple Inc.
Inventor： Feng Zhao , Utku Seckin
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, a front-end module, and an antenna. The transceiver may include mixer circuitry. The mixer circuitry may include switches controlled by oscillator signals. The mixer circuitry may also include oscillator phase noise cancelling capacitors controlled by inverted oscillator signals. Operated in this way, the mixer circuitry exhibits improved noise figure performance.
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公开(公告)号：US11843413B1
公开(公告)日：2023-12-12
申请号：US17707778
申请日：2022-03-29
Applicant: Apple Inc.
Inventor： Long Kong , Chia-Hsiang Chen , Utku Seckin
IPC: H04B1/7163 , H04B1/717
CPC classification number: H04B1/71635 , H04B1/7172 , H04B2201/7163
Abstract: A signal transmitter may include a waveform synthesis circuit and a signal transmission circuit. The waveform synthesis circuit may store values of a reference waveform for a selected channel of the signal transmitter, and use the stored values to generate values of reference waveforms for one or more other channels of the signal transmitter. The waveform synthesis circuit may further include a sampling boost circuit to generate one or more additional values for the reference waveforms. The waveform transmission circuit may generate signals for the channels of the signal transmitter based at least in part on the values of the reference waveforms, and transmit the signals via one or more antennas.
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公开(公告)号：US11601101B2
公开(公告)日：2023-03-07
申请号：US17366964
申请日：2021-07-02
Applicant: Apple Inc.
Inventor： Utku Seckin , Hanwen Yang
Abstract: A switching power amplifier includes logic circuitry that generates first and second components of a differential signal, based on received amplitude code and a delayed version of the same. The amplitude code includes a sign and a magnitude. When the sign is positive, a first logic path is configured to generate the first component based on the received amplitude code and the second logic path is configured to generate the second component based on the delayed amplitude code. When the sign is negative, the first logic path is configured to generate the first component based on the delayed amplitude code and the second logic path is configured to generate the second component based on the received amplitude code. The switching power amplifier further includes a differential-to-single ended conversion circuit configured to generate a single-ended signal based on the differential signal.
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公开(公告)号：US20220321058A1
公开(公告)日：2022-10-06
申请号：US17845666
申请日：2022-06-21
Applicant: Apple Inc.
Inventor： Feng Zhao , Utku Seckin
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, a front-end module, and an antenna. The transceiver may include mixer circuitry. The mixer circuitry may include switches controlled by oscillator signals. The mixer circuitry may also include oscillator phase noise cancelling capacitors controlled by inverted oscillator signals. Operated in this way, the mixer circuitry exhibits improved noise figure performance.
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Patent Agency Ranking
公开(公告)号：US20220094304A1
公开(公告)日：2022-03-24
申请号：US17348414
申请日：2021-06-15
Applicant: Apple Inc.
Inventor： Feng Zhao , Utku Seckin
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, a front-end module, and an antenna. The transceiver may include mixer circuitry. The mixer circuitry may include switches controlled by oscillator signals. The mixer circuitry may also include oscillator phase noise cancelling capacitors controlled by inverted oscillator signals. Operated in this way, the mixer circuitry exhibits improved noise figure performance.
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公开(公告)号：US10756744B1
公开(公告)日：2020-08-25
申请号：US16515961
申请日：2019-07-18
Applicant: Apple Inc.
Inventor： Utku Seckin , Simone Gambini , Michael D. Scott
Abstract: Various embodiments of a segmented R-DAC are disclosed. In one embodiment, a segmented R-DAC includes first and second DACs arranged to receive most and least significant bits, respectively. The segmented R-DAC also includes a first capacitor coupled between an output of the first DAC and an output of the second DAC, and a second capacitor coupled between the output of the second DAC and a ground node. The capacitance of the second capacitor has a value that is a predetermined multiple of the capacitance value of the first capacitor.
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公开(公告)号：US10594270B1
公开(公告)日：2020-03-17
申请号：US16057813
申请日：2018-08-07
Applicant: Apple Inc.
Inventor： Utku Seckin
Abstract: A supply modulator for a polar power amplifier and method for operating the same are disclosed. An apparatus includes an amplifier having an input for receiving a phase modulated (PM) signal. A modulator is arranged to receive an amplitude modulated (AM) signal and provide a supply voltage to the amplifier, the supply voltage varying based on the AM signal. A detector circuit may detect the supply voltage exceeding a first threshold or falling below a second threshold. The detector circuit includes a current source arranged to provide a bias current to the modulator. When the supply voltage exceeds the first threshold, the detector causes an increase in the bias current provided to the modulator. Similarly, when the supply voltage falls below a second threshold, the detector causes an increase of the bias current supplied to the modulator.
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公开(公告)号：US20200052708A1
公开(公告)日：2020-02-13
申请号：US16057807
申请日：2018-08-07
Applicant: Apple Inc.
Inventor： Utku Seckin , Simone Gambini , Benjamin W. Cook
Abstract: A non-integer divider for dividing the frequency of a signal is disclosed. A non-integer divider includes a first divider that divides the frequency of a first signal. A mixer is coupled to receive the first signal, and a second signal having a frequency equivalent to that output by the first divider. The mixer outputs a third signal having a frequency based on respective frequencies of the first and second signal. A second divider receives and frequency divides the third signal to produce a fourth signal. A ratio of the frequency of the first signal to the fourth signal is a non-integer value.
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公开(公告)号：US20250080144A1
公开(公告)日：2025-03-06
申请号：US18460238
申请日：2023-09-01
Applicant: Apple Inc.
Inventor： Long Kong , Shinan Lu , Utku Seckin
Abstract: The present disclosure relates to compensating for temperature variation of a mixer. Embodiments herein may include the mixer, a calibration circuit coupled to the mixer, a replica mixer circuit coupled to the calibration circuit, and a temperature compensation circuit coupled to the calibration circuit. The replica mixer circuit may generate or be used to generate a reference voltage that varies with a common mode voltage and/or a threshold voltage of a replica mixer. The reference voltage may be applied to a resistor ladder of the calibration circuit to adjust a bias voltage and compensate for temperature variations. Further, the temperature compensation circuit may generate a temperature coefficient that may be applied to a current going through the calibration circuit to facilitate compensating for temperature variation.
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