公开(公告)号：US20240372171A1

公开(公告)日：2024-11-07

申请号：US18142171

申请日：2023-05-02

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Yoke Peir LIM ,  Yen Nee LEE ,  Daniel TAN ,  May San LOO ,  Kee Sin THONG ,  Wai Mun LEE

IPC: H01M10/633 ,  G01R31/389 ,  H01M10/44 ,  H01M10/48

Abstract: Device, system and method to control at least one electrical circuit to enter a low efficiency mode to heat a battery cell is provided. A temperature measurement device and battery cell parameter determination device respectively determine a temperature and impedance of a battery cell of a device. When the temperature of the battery cell is below a threshold temperature and the impedance of the battery cell is above a threshold impedance, a controller of the device controls at an electrical circuit of the device to enter a low efficiency mode by controlling the electrical circuit to draw an auxiliary current from the battery cell to heat the battery cell, the auxiliary current being below a given functional operating current of the electrical circuit, the electrical circuit having reduced functionality, relative to a given functionality when drawing a given functional operating current from the battery cell, while drawing the auxiliary current.

公开(公告)号：US20230208163A1

公开(公告)日：2023-06-29

申请号：US17561779

申请日：2021-12-24

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Muhamad Ridzuan AZIZAN ,  Kow Chee CHONG ,  Macwien KRISHNAMURHTI ,  Wai Mun LEE ,  Chen Kok YEOH ,  Yik Chuang Joseph TING

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/48 ,  H01M10/42 ,  H01M10/0525

CPC classification number: H02J7/0036 ,  H02J7/0047 ,  H02J7/00032 ,  H01M10/46 ,  H01M10/48 ,  H01M10/425 ,  H01M10/0525 ,  H02J2207/20 ,  H01M2220/30

Abstract: An example system comprises a battery and a battery-powered device. Battery contacts and a data interface are therebetween. The battery includes low-power and high-power circuits to output power, from a cell, to the battery-powered device via the contacts. The high-power circuit outputs power higher than the low-power circuit. A switch(es) connects and disconnects the high-power circuit to/from the contacts, the low-power circuit connected to the contacts when the switch disconnects the high-power circuit. A voltage detector: detects a battery-voltage on the contacts and an output voltage on the data interface; when the output voltage is greater than the battery-voltage, controls the switch to connect the high-power circuit to the contacts; and when the output voltage is below the battery-voltage, controls the switch to disconnect the high-power circuit from the contacts. The battery-powered device provides the output voltage on the data interface as powered from the contacts by the battery.

公开(公告)号：US20220200271A1

公开(公告)日：2022-06-23

申请号：US17131979

申请日：2020-12-23

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Wai Mun LEE ,  Tzun Chuan WOO ,  Peter J. BARTELS ,  Yehuda ROKACH

IPC: H02H9/02 ,  H02H1/00 ,  H04B1/40

Abstract: A device, method and system for throttling current and/or power to peripherals is provided. A device comprises peripherals powered by a power source. The device further comprises a throttling circuit configured to: in response to receiving a given interrupt, cause throttling of respective currents to a given subset of the peripherals. The device further comprises a sensing circuit configured to: in response to determining that a sensed current from the power source exceeds a threshold current, provide the given interrupt to the throttling circuit. The device further comprises a primary processor configured to: determine the threshold current based at least on a predetermined maximum current of a presently prioritized peripheral; and provide the threshold current to the sensing circuit. The device further comprises a secondary processor configured to: determine the given subset of the peripherals based on an available current overhead.

公开(公告)号：US20190014065A1

公开(公告)日：2019-01-10

申请号：US15643663

申请日：2017-07-07

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin LIM ,  Wai Mun LEE ,  Boon Kheng HOOI

IPC: H04L12/58 ,  H04L29/06

Abstract: A device and method for switching between message threads is provided. The device includes: a communication interface; a display device; and, a controller. The controller is configured to: generate, at the display device, a first message thread of a plurality of message threads, each message thread comprising groups of associated messages transmitted and received by the communication interface; identify a message portion in the first message thread as being associated with one or more other message threads of the plurality of message threads, based on one or more of: respective content and respective metadata of the one or more other message threads; and, generate, at the display device, a link to the one or more other message threads.