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公开(公告)号：US11953926B2
公开(公告)日：2024-04-09
申请号：US17807316
申请日：2022-06-16
Applicant: Skyworks Solutions, Inc.
Inventor： Bang Li Liang , Guillaume Alexandre Blin , Thomas Obkircher
Abstract: Voltage regulation schemes for powering multiple circuit blocks are disclosed. In certain embodiments, a front end system includes a reference voltage circuit that receives power from a power supply voltage and generates a reference voltage, a group of circuit blocks each selectively enabled by a corresponding one of a group of enable signals, and a programmable voltage regulator that generates a programmable regulated voltage based on the reference voltage and provides the programmable regulated voltage to the circuit blocks. The programmable regulated voltage has a voltage level that changes based on a selection of the circuit blocks that are enabled by the enable signals.
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公开(公告)号：US10560202B2
公开(公告)日：2020-02-11
申请号：US16282621
申请日：2019-02-22
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Adrian John Bergsma , Peihua Ye , Thomas Obkircher , Peter Harris Robert Popplewell , Gregory Edward Babcock , William J. Domino
IPC: H04B15/00 , H03F1/56 , H03G3/30 , H03F3/19 , H04B1/40 , H03F3/72 , H03G3/34 , H04B1/44 , H04B1/04 , H04B1/18
Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
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公开(公告)号：US10461700B2
公开(公告)日：2019-10-29
申请号：US15808458
申请日：2017-11-09
Applicant: SKYWORKS SOLUTIONS, INC.
Abstract: Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential RC relaxation oscillator including an oscillator core and biasing circuitry. The oscillator core may be configured such that the oscillating signal it generates is substantially sinusoidal or pseudo-sinusoidal and contains less harmonic content relative to a square wave signal. The biasing circuitry may be configured to have a reduced dependence on temperature so that the biasing values it provides vary less with temperature.
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公开(公告)号：US10256921B2
公开(公告)日：2019-04-09
申请号：US15808358
申请日：2017-11-09
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Adrian John Bergsma , Peihua Ye , Thomas Obkircher , Peter Harris Robert Popplewell , Gregory Edward Babcock , William J. Domino
IPC: H04B15/00 , H03G3/30 , H03F1/56 , H03F3/19 , H04B1/40 , H03F3/72 , H03G3/34 , H04B1/44 , H04B1/04 , H04B1/18
Abstract: Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. The standby mode may be used while the transceiver is in an idle state between modes, such as while changing an amplifier gain states in between transmissions. While transitioning between modes, the impedance presented by the communications system can temporarily fluctuate causing unwanted signal reflections to propagate out of the communications system and on to the shared medium. Circuitry within the communications system, such as transmission circuitry including an adjustable attenuator, may be placed into a hybrid attenuation-isolation mode during the transition causing the magnitude of any unwanted signal reflections to be attenuated and reducing the impact on the shared medium.
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公开(公告)号：US10230351B2
公开(公告)日：2019-03-12
申请号：US15238473
申请日：2016-08-16
Applicant: Skyworks Solutions, Inc.
Inventor： Thomas Obkircher , William J. Domino , Bipul Agarwal
IPC: H03B29/00 , H03H11/24 , H03K3/84 , H03L7/18 , H03B5/12 , H04B1/04 , H03K3/012 , H03K3/013 , H04L25/08 , H02M3/07 , H03B5/24 , H03F3/19 , H03F3/21 , H04W28/14
Abstract: Apparatus and methods for distributing spurious tones through the frequency domain are disclosed. One such apparatus can include a dithering circuit configured to generate a sequence of numbers that exhibit statistical randomness and a variable frequency circuit configured to adjust a frequency of an output based on the sequence of numbers so as to spread energy of spurious tones in a frequency response of the output to lower a noise floor. In one example, spurious tones can be reduced in a negative voltage generator of a radio frequency (RF) attenuator.
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Patent Agency Ranking
公开(公告)号：US20180138877A1
公开(公告)日：2018-05-17
申请号：US15808372
申请日：2017-11-09
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Adrian John Bergsma , Thomas Obkircher , Peihua Ye , Bang Li Liang , Peter Harris Robert Popplewell , William J. Domino
Abstract: Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. The level of the bias signal is ramped from an initial bias level to a final bias level over numerous steps. The steps include at least one step in which the level of the bias signal is between the initial bias level and the final bias level. An amplifier system having multiple stages may be controlled to enable each stage and selectively couple each stage in a sequence that couples an output stage to an output terminal at the completion of the sequence.
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公开(公告)号：US20180131339A1
公开(公告)日：2018-05-10
申请号：US15808486
申请日：2017-11-09
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Peihua Ye , Patrick Marcus Naraine , Adrian John Bergsma , Peter Harris Robert Popplewell , Thomas Obkircher
CPC classification number: H03G1/0088 , H03F1/3211 , H03F3/195 , H03F3/45179 , H03F3/45188 , H03F3/72 , H03F2200/294 , H03F2200/451 , H03F2203/45338 , H03F2203/45731 , H03F2203/7233 , H03F2203/7236 , H03F2203/7239 , H03G2201/103 , H03G2201/106 , H03G2201/504
Abstract: Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. A bypass path including a fixed attenuator is coupled in parallel with the variable gain amplifier between the signal input and the signal output to selectively couple the signal input to the signal output through the fixed attenuator during a bypass mode.
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公开(公告)号：US09787467B2
公开(公告)日：2017-10-10
申请号：US15242378
申请日：2016-08-19
Applicant: Skyworks Solutions, Inc.
Inventor： Thomas Obkircher , Bipul Agarwal , Wei-Hong Chen
CPC classification number: H04L7/0331 , H03B5/1212 , H03L7/08 , H03L7/0898 , H03L7/093 , H03L7/099 , H03L7/1072 , H03L2207/04
Abstract: Apparatus and methods for adjusting a gain of an electronic oscillator, such as a voltage-controlled oscillator (VCO), are disclosed. In one aspect, an apparatus for compensating for VCO gain variations includes a charge pump controller. The charge pump controller can be configured to select a VCO gain model based on a comparison of a VCO gain indicator and a threshold value stored in a memory, obtain VCO gain model parameters from the memory corresponding to the selected VCO gain model, and compute a charge pump current control value using the VCO gain model parameters. The charge pump current control value can be used to compensate for VCO gain variations.
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公开(公告)号：US09548786B2
公开(公告)日：2017-01-17
申请号：US14927198
申请日：2015-10-29
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Thomas Obkircher , Bo Zhou , Nuttapong Srirattana
Abstract: Radio-frequency (RF) modules are disclosed comprising an RF input port, an RF output port and an RF core configured operate in each of a plurality of operational states, the plurality of operational states including a first subset of operational states and a second subset of operational states. The RF module or device includes a decoder configured to receive an input signal indicating a first operational state of the RF core, the first operational state being of the first subset, generate an output control signal corresponding to the first operational state, detect a transition of the RF core to a second operational state, determine that the second operational state is of the second subset, and insert an intermediate output signal corresponding to an intermediate operational state of the RF core in response to said determination.
Abstract translation: 公开了射频（RF）模块，其包括RF输入端口，RF输出端口和配置的RF核，其在多个操作状态中的每一个中操作，所述多个操作状态包括第一操作状态子集和第二子集 的操作状态。 RF模块或设备包括被配置为接收指示RF核心的第一操作状态的输入信号的解码器，第一子集的第一操作状态产生对应于第一操作状态的输出控制信号， 所述RF核到第二操作状态，确定所述第二操作状态是所述第二子集，并响应于所述确定插入与所述RF核的中间操作状态相对应的中间输出信号。
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公开(公告)号：US20160087642A1
公开(公告)日：2016-03-24
申请号：US14952138
申请日：2015-11-25
Applicant: Skyworks Solutions, Inc.
Inventor： Tom Taoufik Bourdi , Thomas Obkircher , Bipul Agarwal , Chandra Mohan
CPC classification number: H03L7/1978 , H03L7/1976 , H03M3/422 , H03M3/436 , H03M7/3022 , H04B1/40 , H04B2001/0491 , H04L7/0331 , H04L27/00 , H04L27/361
Abstract: A fractional-N divider of a frequency synthesizer is driven by a dither-less error feedback modulator to alleviate fractional spurious tones introduced by the cyclic train of division ratios from delta-sigma modulators. A first feedback loop generates the feedback signal. A second feedback loop disrupts fractional spurious tones and a third feedback loop provides approximately zero static error.
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