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公开(公告)号：US20250047312A1
公开(公告)日：2025-02-06
申请号：US18229069
申请日：2023-08-01
Applicant: Apple Inc.
Inventor： Sang Hyun Woo
IPC: H04B1/00
Abstract: An electronic device includes a first interconnection between a first circuitry and a second circuitry that does not include a switch. A second interconnection may couple or connect third circuitry to the first interconnection via a first switch. Signals sent from the first circuitry to the second circuitry may have a higher priority and/or a different frequency than those sent from the third circuitry to the second circuitry. The first switch may be disposed near a first junction of the first interconnection and the second interconnection. In some embodiments, a ground or a termination resistance may also be coupled to the first interconnection via a second switch. The second switch may be coupled to the first interconnection at a second junction near the first circuitry.
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公开(公告)号：US20230019152A1
公开(公告)日：2023-01-19
申请号：US17945226
申请日：2022-09-15
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, and an antenna. The transceiver may include a mixer that outputs signals to a transimpedance amplifier. The mixer has an output impedance that varies depending on the frequency of operation. An adjustable resistance can be coupled to the input of the transimpedance amplifier. A control circuit can tune the adjustable resistance to compensate for changes in the output impedance of the mixer as the transceiver operates across a wide range of frequencies.
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公开(公告)号：US20240007119A1
公开(公告)日：2024-01-04
申请号：US18466046
申请日：2023-09-13
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
IPC: H03M1/12
CPC classification number: H03M1/124
Abstract: An electronic device may include wireless circuitry having analog-to-digital converter (ADC) circuitry. The ADC circuitry may include a sampling switch coupled to a bootstrap circuit. The bootstrap circuit may include a bootstrap capacitor, a first transistor coupled between an input of the sampling switch and a bottom plate terminal of the bootstrap capacitor, a second transistor coupled between the bottom plate terminal of the bootstrap capacitor and ground, and a resistor or transistor that is disposed between the first transistor and the bottom plate terminal of the bootstrap capacitor and that is configured to boost the input impedance of the bootstrap circuit.
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公开(公告)号：US20230421136A1
公开(公告)日：2023-12-28
申请号：US18466708
申请日：2023-09-13
Applicant: Apple Inc.
Inventor： Sang Hyun Woo
CPC classification number: H03H11/483 , H03F1/56 , H03H11/405
Abstract: An integrated circuit may include one or more circuits coupled to capacitance multiplier circuitry. The capacitance multiplier circuitry may include a capacitor, fixed and tunable resistances, and a transconductance circuit. The tunable resistance can be adjusted to control the overall capacitance of the capacitance multiplier circuitry. The transconductance circuit may include a transistor having a drain terminal coupled to a first electrical component and a source terminal coupled to a second electrical component. The first electrical component may be a diode-connected transistor, a direct shorting wire, a resistor, an inductor, or a current source. The second electrical component may be a current source, a direct shorting wire, a resistor, an inductor, or another diode-connected device. Configured in this way, the capacitance multiplier circuitry can provide a large adjustable amount of capacitance without a voltage drop and without consuming a large amount of power.
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公开(公告)号：US11799491B1
公开(公告)日：2023-10-24
申请号：US17835594
申请日：2022-06-08
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
IPC: H03M1/12
CPC classification number: H03M1/124
Abstract: An electronic device may include wireless circuitry having analog-to-digital converter (ADC) circuitry. The ADC circuitry may include a sampling switch coupled to a bootstrap circuit. The bootstrap circuit may include a bootstrap capacitor, a first transistor coupled between an input of the sampling switch and a bottom plate terminal of the bootstrap capacitor, a second transistor coupled between the bottom plate terminal of the bootstrap capacitor and ground, and a resistor or transistor that is disposed between the first transistor and the bottom plate terminal of the bootstrap capacitor and that is configured to boost the input impedance of the bootstrap circuit.
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Patent Agency Ranking
公开(公告)号：US12057857B2
公开(公告)日：2024-08-06
申请号：US18466046
申请日：2023-09-13
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
IPC: H03M1/12
CPC classification number: H03M1/124
Abstract: An electronic device may include wireless circuitry having analog-to-digital converter (ADC) circuitry. The ADC circuitry may include a sampling switch coupled to a bootstrap circuit. The bootstrap circuit may include a bootstrap capacitor, a first transistor coupled between an input of the sampling switch and a bottom plate terminal of the bootstrap capacitor, a second transistor coupled between the bottom plate terminal of the bootstrap capacitor and ground, and a resistor or transistor that is disposed between the first transistor and the bottom plate terminal of the bootstrap capacitor and that is configured to boost the input impedance of the bootstrap circuit.
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公开(公告)号：US11791856B2
公开(公告)日：2023-10-17
申请号：US17945226
申请日：2022-09-15
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
CPC classification number: H04B1/18 , H03F1/18 , H03F3/24 , H04B1/40 , H03F2200/294 , H03F2200/451
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, and an antenna. The transceiver may include a mixer that outputs signals to a transimpedance amplifier. The mixer has an output impedance that varies depending on the frequency of operation. An adjustable resistance can be coupled to the input of the transimpedance amplifier. A control circuit can tune the adjustable resistance to compensate for changes in the output impedance of the mixer as the transceiver operates across a wide range of frequencies.
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公开(公告)号：US11012045B2
公开(公告)日：2021-05-18
申请号：US16426947
申请日：2019-05-30
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Paul-Aymeric H. Fontaine
Abstract: A variable gain amplifier circuit is disclosed. In one embodiment, an amplifier circuit includes first and second stages. Each stage includes one or more inverter pairs, with one inverter of each pair coupled to receive an inverting component of a differential signal and the other inverter of the pair coupled to receive a non-inverting component. The first stage receives a differential input signal and produces an intermediate differential signal. The second stage receives the intermediate differential signal and produces a differential output signal, the differential output signal being an amplified version of the differential input signal.
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公开(公告)号：US20230223932A1
公开(公告)日：2023-07-13
申请号：US17574895
申请日：2022-01-13
Applicant: Apple Inc.
Inventor： Sang Hyun Woo
CPC classification number: H03H11/483 , H03F1/56 , H03H11/405
Abstract: An integrated circuit may include one or more circuits coupled to capacitance multiplier circuitry. The capacitance multiplier circuitry may include a capacitor, fixed and tunable resistances, and a transconductance circuit. The tunable resistance can be adjusted to control the overall capacitance of the capacitance multiplier circuitry. The transconductance circuit may include a transistor having a drain terminal coupled to a first electrical component and a source terminal coupled to a second electrical component. The first electrical component may be a diode-connected transistor, a direct shorting wire, a resistor, an inductor, or a current source. The second electrical component may be a current source, a direct shorting wire, a resistor, an inductor, or another diode-connected device. Configured in this way, the capacitance multiplier circuitry can provide a large adjustable amount of capacitance without a voltage drop and without consuming a large amount of power.
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公开(公告)号：US11595069B2
公开(公告)日：2023-02-28
申请号：US17375843
申请日：2021-07-14
Applicant: Apple Inc.
Inventor： Sang Hyun Woo , Florian Mrugalla
Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver, and an antenna. The transceiver may include a mixer that outputs signals to a transimpedance amplifier. The mixer has an output impedance that varies depending on the frequency of operation. An adjustable resistance can be coupled to the input of the transimpedance amplifier. A control circuit can tune the adjustable resistance to compensate for changes in the output impedance of the mixer as the transceiver operates across a wide range of frequencies.
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