公开(公告)号：US20170343427A1

公开(公告)日：2017-11-30

申请号：US15163215

申请日：2016-05-24

Applicant: QUALCOMM Incorporated

Inventor： Mohammad GHASEMAZAR ,  Mohammad Meysam ZARGHAM

IPC: G01K15/00

CPC classification number: G01K15/005 ,  G01D3/024 ,  G01D3/10

Abstract: Apparatuses are presented. The apparatus includes a sensor configured with an adjustable accuracy setting to measure a physical parameter and a controller configured to adjust the accuracy setting based on a threshold, and to adjust the threshold based on the physical parameter measured by the sensor. Another apparatus includes a sensor configured with a plurality of sensor accuracy settings to measure a physical parameter of a circuit in a plurality of operating regions. The plurality of operating regions is based on ranges of the physical parameter measured by the sensor. Each of the plurality of sensor accuracy settings corresponds to one of the plurality of operating regions. A controller is configured to adjust one of the ranges of the physical parameter for one of the plurality of operating regions, in response to a change of an operating condition of the circuit.

公开(公告)号：US20170085266A1

公开(公告)日：2017-03-23

申请号：US14862473

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Mohammad Meysam ZARGHAM ,  Masoud ROHAM ,  Liang DAI

IPC: H03K19/0185

CPC classification number: H03K19/018528 ,  H03F1/0266 ,  H03F1/42 ,  H03F3/3028 ,  H03F3/45179 ,  H03F3/45475 ,  H03F2200/18 ,  H03F2200/444 ,  H03K19/018521 ,  H03K19/018585

Abstract: Certain aspects of the present disclosure provide methods and apparatus (e.g., a level shifter) for buffering an oscillating signal generated by an oscillator. One example apparatus generally includes an amplifier having a first amplification stage configured to amplify the oscillating signal generated by the oscillator and a second amplification stage configured to amplify an inverse of the oscillating signal generated by the oscillator; and a sensing circuit configured to adjust an operational bandwidth of the amplifier based on a frequency of the oscillating signal.

公开(公告)号：US20180241409A1

公开(公告)日：2018-08-23

申请号：US15440612

申请日：2017-02-23

Applicant: QUALCOMM Incorporated

Inventor： Elias DAGHER ,  Yan WANG ,  Mohammad Meysam ZARGHAM ,  Dinesh Jagannath ALLADI

IPC: H03M1/12 ,  H03M3/00

CPC classification number: H03M1/1245 ,  H03M3/37 ,  H03M3/396 ,  H03M3/458 ,  H03M3/464

Abstract: Certain aspects of the present disclosure provide methods and apparatus for implementing sampling rate scaling of an excess loop delay (ELD)-compensated continuous-time delta-sigma modulator (CTDSM) analog-to-digital converter (ADC). One example ADC generally includes a loop filter; a quantizer having an input coupled to an output of the loop filter; one or more digital-to-analog converters (DACs), each having an input coupled to an output of the quantizer, an output coupled to an input of the loop filter, and a data latch comprising a clock input for the DAC coupled to a clock input for the ADC; and a clock delay circuit having an input coupled to the clock input for the ADC and an output coupled to a clock input for the quantizer.