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公开(公告)号：US20180278408A1
公开(公告)日：2018-09-27
申请号：US15991488
申请日：2018-05-29
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu , Sheng-Yu Peng , Rodney Chandler , Pawan Tiwari , Rahul Bhatia , Eric Fogleman
CPC classification number: H04L7/0334 , H03M1/1215 , H03M1/1245
Abstract: A radio frequency (RF) receiver may comprise a first sampling module that is operable to sample in a first level at a particular main sampling rate; a plurality of second-level sampling modules, wherein each of the plurality of second-level sampling modules is operable to sample in a second level, an output of the first level, at a second sampling rate that is reduced compared to the main sampling rate; and a plurality of third-level modules, each comprising a plurality of third-stage sampling sub-modules that are operable to sample at a third sampling rate that is reduced compared to the second sampling rate, and a plurality of corresponding analog-to-digital conversion (ADC) sub-modules.
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公开(公告)号：US20180248558A1
公开(公告)日：2018-08-30
申请号：US15966066
申请日：2018-04-30
Applicant: Maxlinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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公开(公告)号：US20170359080A1
公开(公告)日：2017-12-14
申请号：US15633157
申请日：2017-06-26
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
CPC classification number: H03M1/1023 , H03M1/0607 , H03M1/68
Abstract: Systems and methods are provided for digital-to-analog conversions with adaptive digital offsets. A digital offset may be determined and applied to a digital input to a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the digital input with the digital offset. The digital offset may be set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affecting switching characteristics of one or more of a plurality of conversion elements in the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. The adjustments may be selectively applied to the digital offset for particular input conditions.
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公开(公告)号：US20160191073A1
公开(公告)日：2016-06-30
申请号：US14869268
申请日：2015-09-29
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
IPC: H03M1/66
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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公开(公告)号：US20140105339A1
公开(公告)日：2014-04-17
申请号：US14107212
申请日：2013-12-16
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu , Sheng-Yu Peng , Rodney Chandler , Pawan Tiwari , Rahul Bhatia , Eric Fogleman
IPC: H04L7/033
CPC classification number: H04L7/0334 , H03M1/1215 , H03M1/1245
Abstract: A signal receiver may comprise a first sampling circuitry that is operable to sample in a first level at a particular main sampling rate; a second sampling circuitry that is operable to sample in a second level, an output of the first sampling circuitry, at a second sampling rate that is reduced compared to the main sampling rate; a third sampling circuitry that is operable to sample in a third level, one or more outputs of the second sampling circuitry, at a third sampling rate that is reduced compared to the second sampling rate; and an analog-to-digital conversion (ADC) circuitry for applying analog-to-digital conversion to one or more outputs of the third sampling circuitry.
Abstract translation: 信号接收器可以包括第一采样电路，其可操作以在特定主采样率下以第一电平进行采样; 第二采样电路，其可操作以以与主采样率相比减小的第二采样率在第二电平中采样第一采样电路的输出; 第三采样电路，其可操作以以与第二采样率相比减小的第三采样率在第三电平，第二采样电路的一个或多个输出中采样; 以及用于将模数转换应用于第三采样电路的一个或多个输出的模数转换（ADC）电路。
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Patent Agency Ranking
公开(公告)号：US10003349B2
公开(公告)日：2018-06-19
申请号：US15611827
申请日：2017-06-02
Applicant: Maxlinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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公开(公告)号：US09991899B2
公开(公告)日：2018-06-05
申请号：US15790343
申请日：2017-10-23
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
CPC classification number: H03M1/0624 , H03M1/66
Abstract: Systems and methods are provided for adaptive configuration and control of digital-to-analog converters (DACs). Performance of a plurality of conversion elements in a digital-to-analog converter (DAC) may be assessed based on particular input conditions associated with a digital input to the DAC, and the DAC may be configured based on the assessing of performance. Each conversion element of the plurality of conversion elements handles a particular bit in the digital input. The configuring may comprise selecting a subset of the plurality of conversion elements, and setting only the subset of the plurality of conversion elements to apply a particular type of operations. The particular type of operations pertains to applying digital-to-analog conversions via the DAC, and the particular type of operations relates to or affects performance. The particular input conditions may comprise signal backoff.
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公开(公告)号：US09800254B2
公开(公告)日：2017-10-24
申请号：US15130602
申请日：2016-04-15
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
CPC classification number: H03M1/0624 , H03M1/66
Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with partial constant switching. A digital-to-analog converter (DAC) comprising a plurality of conversion elements may be configured to apply constant switching in only some of the conversion elements. Only conversion elements applying constant switching may incorporate circuitry for providing such the constant switching. Alternatively, each conversion element may incorporate constant switching circuitry and functionality, and the constant switching may then be turned on or off for each conversion element adaptively, such as based on input conditions.
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公开(公告)号：US20170272234A1
公开(公告)日：2017-09-21
申请号：US15419063
申请日：2017-01-30
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu , Sheng-Yu Peng , Rodney Chandler , Pawan Tiwari , Rahul Bhatia , Eric Fogleman
IPC: H04L7/033
CPC classification number: H04L7/0334 , H03M1/1215 , H03M1/1245
Abstract: A radio frequency (RF) receiver may comprise a first sampling module that is operable to sample in a first level at a particular main sampling rate; a plurality of second-level sampling modules, wherein each of the plurality of second-level sampling modules is operable to sample in a second level, an output of the first level, at a second sampling rate that is reduced compared to the main sampling rate; and a plurality of third-level modules, each comprising a plurality of third-stage sampling sub-modules that are operable to sample at a third sampling rate that is reduced compared to the second sampling rate, and a plurality of corresponding analog-to-digital conversion (ADC) sub-modules.
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公开(公告)号：US20160336950A1
公开(公告)日：2016-11-17
申请号：US15218586
申请日：2016-07-25
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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