公开(公告)号：US20240356507A1

公开(公告)日：2024-10-24

申请号：US18302414

申请日：2023-04-18

Applicant: Apple Inc.

Inventor： Saikrishna Ganta ,  Sudharsan Kanagaraj ,  Siladitya Dey ,  Man-Chia Chen ,  Paritosh Bhoraskar ,  Srinivas Bangalore Seshadri ,  Tao Wang ,  Si Chen

IPC: H03F3/45

CPC classification number: H03F3/45475 ,  H03F2200/165 ,  H03F2200/171

Abstract: A high input impedance switched capacitor amplifier is disclosed. The switched capacitor amplifier includes at least a first buffer circuit configured to charge a first plurality of capacitors during a first time period. A switch circuit is configured to, during a second time period, cause a modification of an amount of charge stored on one of the first plurality of capacitors by coupling an input signal directly to the one of first plurality of capacitors. An amplifier circuit is configured to, based on a sampling voltage present on one of the first plurality of capacitors, generate an output signal.

公开(公告)号：US10819361B2

公开(公告)日：2020-10-27

申请号：US16745173

申请日：2020-01-16

Applicant: Apple Inc.

Inventor： Tao Wang ,  Mansour Keramat ,  Yi Chun A. Fu

IPC: H03M1/10 ,  H01L23/528 ,  H01L27/10

Abstract: Capacitor arrays and methods of operating a digital to analog converter are described. In an embodiment, a capacitor array includes a unit capacitor (Cu) structure characterized by a unit capacitance value, a plurality of different super-unit capacitor structures, and a plurality of different sub-unit capacitor structures, each different sub-unit capacitor structure having a different capacitance defined by a division of the unit capacitance value.

公开(公告)号：US10574249B2

公开(公告)日：2020-02-25

申请号：US15969547

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Tao Wang ,  Mansour Keramat ,  Yi Chun A. Fu

IPC: H03M1/10 ,  H01L23/528 ,  H01L27/10

Abstract: Capacitor arrays and methods of operating a digital to analog converter are described. In an embodiment, a capacitor array includes a unit capacitor (Cu) structure characterized by a unit capacitance value, a plurality of different super-unit capacitor structures, and a plurality of different sub-unit capacitor structures, each different sub-unit capacitor structure having a different capacitance defined by a division of the unit capacitance value.

公开(公告)号：US20190341925A1

公开(公告)日：2019-11-07

申请号：US15969547

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Tao Wang ,  Mansour Keramat ,  Yi Chun A. Fu

IPC: H03M1/10 ,  H01L27/10 ,  H01L23/528

Abstract: Capacitor arrays and methods of operating a digital to analog converter are described. In an embodiment, a capacitor array includes a unit capacitor (Cu) structure characterized by a unit capacitance value, a plurality of different super-unit capacitor structures, and a plurality of different sub-unit capacitor structures, each different sub-unit capacitor structure having a different capacitance defined by a division of the unit capacitance value.

公开(公告)号：US10713703B2

公开(公告)日：2020-07-14

申请号：US15631386

申请日：2017-06-23

Applicant: Apple Inc.

Inventor： Tao Wang ,  Jayasimha R. Katukuri ,  Venkat Kranthi Chalasani ,  Venkatakrishnan S. Sundaranatha ,  Chandrasekar Venkataraman

IPC: G06F16/2457 ,  G06F16/9535 ,  G06F16/635 ,  G06F16/435 ,  G06F16/41 ,  G06Q30/06 ,  H04L29/08

Abstract: In some implementations, a computing device can improve diversity in media item recommendations. For example, the computing device can generate a satisfaction score representing an estimate of the amount satisfaction a user will experience when a candidate media item selected by the user is presented (e.g., played) by the system. The system can determine the difference in satisfaction scores for similar media items over time to determine the amount of satisfaction gained with a subsequent selection and presentation of similar candidate media items. The system can rank candidate media items based the satisfaction gain calculated for each candidate media item and select suggested media items to present to the user based on the candidate media items having the highest satisfaction gain. In some implementations, the computing device can generate satisfaction scores based on an adventurousness score calculated for the user.

公开(公告)号：US10931243B2

公开(公告)日：2021-02-23

申请号：US16281927

申请日：2019-02-21

Applicant: Apple Inc.

Inventor： Vahid Majidzadeh Bafar ,  Mansour Keramat ,  Tao Wang

IPC: H03F1/02 ,  H03F3/00 ,  H03K5/24 ,  H03K5/003 ,  H03F3/04

Abstract: A signal coupling method and apparatus is disclosed. A coupling network is coupled to convey signals from first functional circuit block to a second functional circuit block. The coupling network includes a first signal path having a first capacitor for providing AC coupling between the first and second functional circuit blocks. The coupling network further includes a second signal path in parallel with the first signal path. The second signal path includes a switched capacitor circuit coupled to receive a first common mode voltage corresponding to the first functional circuit block and a second common mode voltage corresponding to the second functional circuit block.

公开(公告)号：US20200274501A1

公开(公告)日：2020-08-27

申请号：US16281927

申请日：2019-02-21

Applicant: Apple Inc.

Inventor： Vahid Majidzadeh Bafar ,  Mansour Keramat ,  Tao Wang

IPC: H03F3/00 ,  H03F3/04 ,  H03K5/003 ,  H03K5/24

Abstract: A signal coupling method and apparatus is disclosed. A coupling network is coupled to convey signals from first functional circuit block to a second functional circuit block. The coupling network includes a first signal path having a first capacitor for providing AC coupling between the first and second functional circuit blocks. The coupling network further includes a second functional circuit block having a second signal path in parallel with the first signal path. The second signal path includes a switched capacitor circuit coupled to receive a first common mode voltage corresponding to the first functional circuit block and a second common mode voltage corresponding to the second functional circuit block.

公开(公告)号：US20180150897A1

公开(公告)日：2018-05-31

申请号：US15631386

申请日：2017-06-23

Applicant: Apple Inc.

Inventor： Tao Wang ,  Jayasimha R. Katukuri ,  Venkat Kranthi Chalasani ,  Venkatakrishnan S. Sundaranatha ,  Chandrasekar Venkataraman

IPC: G06Q30/06 ,  G06F17/30 ,  H04L29/08

CPC classification number: G06Q30/0631 ,  G06F16/24578 ,  G06F16/41 ,  G06F16/435 ,  G06F16/635 ,  G06F16/9535 ,  H04L67/306

Abstract: In some implementations, a computing device can improve diversity in media item recommendations. For example, the computing device can generate a satisfaction score representing an estimate of the amount satisfaction a user will experience when a candidate media item selected by the user is presented (e.g., played) by the system. The system can determine the difference in satisfaction scores for similar media items over time to determine the amount of satisfaction gained with a subsequent selection and presentation of similar candidate media items. The system can rank candidate media items based the satisfaction gain calculated for each candidate media item and select suggested media items to present to the user based on the candidate media items having the highest satisfaction gain. In some implementations, the computing device can generate satisfaction scores based on an adventurousness score calculated for the user.

公开(公告)号：US20200153448A1

公开(公告)日：2020-05-14

申请号：US16745173

申请日：2020-01-16

Applicant: Apple Inc.

Inventor： Tao Wang ,  Mansour Keramat ,  Yi Chun A. Fu

IPC: H03M1/10 ,  H01L27/10 ,  H01L23/528

Abstract: Capacitor arrays and methods of operating a digital to analog converter are described. In an embodiment, a capacitor array includes a unit capacitor (Cu) structure characterized by a unit capacitance value, a plurality of different super-unit capacitor structures, and a plurality of different sub-unit capacitor structures, each different sub-unit capacitor structure having a different capacitance defined by a division of the unit capacitance value.