公开(公告)号：US10724978B2

公开(公告)日：2020-07-28

申请号：US16147510

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Saroj K. Sahu ,  Karthik Kadirvel

IPC: G01N27/06 ,  G06N5/02 ,  G01N33/00 ,  G01N27/04

Abstract: A portable communication device includes one or more sensors, a pair of electrodes associated with each sensor, and a processing circuit configured to apply a bias supply voltage to the pair of electrodes and to process output signals from the sensors. Each sensor is an ionic liquid sensor tuned for sensing a smell associated with a chemical species. The processing circuit further includes an artificial intelligence engine to enhance smell recognition capabilities of the device.

公开(公告)号：US11193876B2

公开(公告)日：2021-12-07

申请号：US16147559

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Saroj K. Sahu

IPC: G01N15/14 ,  H04M1/21 ,  G01N15/06 ,  G01N15/00

Abstract: A particulate matter sensing device includes a light source to generate a pulsed light at a first wavelength in response to a drive pulse. The device further includes one or more photodetectors. A thin-film filter is formed over the photodetectors and is tuned to be transparent to scattered light having a second wavelength substantially equal to the first wavelength. The scattered light is produced as a result of scattering of the pulsed light by the particulate matter. A charge collection circuit of the plurality of photodetectors electronically rejects background light.

公开(公告)号：US10236694B2

公开(公告)日：2019-03-19

申请号：US15662408

申请日：2017-07-28

Applicant: Apple Inc.

Inventor： Thomas C. Greening ,  Karthik Kadirvel ,  Gary L. Stirk ,  Saroj K. Sahu ,  Kamran M. Hasan

IPC: H02J7/14 ,  H02J7/16 ,  H02J7/00 ,  H01M10/42 ,  H01M10/44

Abstract: This disclosure describes a battery pack that includes a plurality of asymmetrical banks, with different capacities and/or voltages, and multiple taps, coupled to the corresponding banks, to power electrical loads. The battery pack also comprise a balancing circuit and a battery management unit. The battery pack may regulate voltages among the banks and/or balance the states of charge among the asymmetrical banks, by moving charges among the banks, by controlling one or more converters. The battery pack monitors the status of its banks and communicate with a host system via the battery management unit. Based on the monitored information and/or communication, the battery management unit generates control signals to drive the one or more converters.

公开(公告)号：US20180034288A1

公开(公告)日：2018-02-01

申请号：US15662408

申请日：2017-07-28

Applicant: Apple Inc.

Inventor： Thomas C. Greening ,  Karthik Kadirvel ,  Gary L. Stirk ,  Saroj K. Sahu ,  Kamran M. Hasan

IPC: H02J7/00

CPC classification number: H02J7/0019 ,  H01M10/425 ,  H01M10/441 ,  H01M2010/4271 ,  H02J7/0022 ,  H02J7/0026 ,  H02J7/0077 ,  H02J2007/0098

Abstract: This disclosure describes a battery pack that includes a plurality of asymmetrical banks, with different capacities and/or voltages, and multiple taps, coupled to the corresponding banks, to power electrical loads. The battery pack also comprise a balancing circuit and a battery management unit. The battery pack may regulate voltages among the banks and/or balance the states of charge among the asymmetrical banks, by moving charges among the banks, by controlling one or more converters. The battery pack monitors the status of its banks and communicate with a host system via the battery management unit. Based on the monitored information and/or communication, the battery management unit generates control signals to drive the one or more converters.