公开(公告)号：US11264814B2

公开(公告)日：2022-03-01

申请号：US16869627

申请日：2020-05-08

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Muhamad Ridzuan Azizan ,  Chen Kok Yeoh ,  Wai Mun Lee ,  Mohd Faisal Abdullah ,  Kow Chee Chong ,  Macwien Krishnamurthi

IPC: H02J7/00 ,  H01M50/528

Abstract: Battery circuitry forms part of apparatus for connecting a battery power source to a portable electronic device. The battery circuitry is configured to detect a transitioning of an enable signal, caused by actuation of a power switch, from a de-asserted state to an asserted state. In response to detecting the transitioning of the enable signal, the battery circuitry is further configured to open an electrical path within the battery circuitry. The path, when opened, connects the battery power source in a manner that permits powering on of the portable electronic device.

公开(公告)号：US11211785B2

公开(公告)日：2021-12-28

申请号：US16590816

申请日：2019-10-02

Applicant: Motorola Solutions, Inc.

Inventor： Wai Mun Lee ,  Macwien Krishnamurthi ,  Chen Kok Yeoh ,  Kow Chee Chong ,  Muhamad Ridzuan Azizan

IPC: H02H7/18 ,  G05F3/24 ,  H02J7/00

Abstract: A method for dynamic limiting of battery voltage includes determining that a voltage delivered by a battery exceeds a predefined maximum safe voltage for operation of a portable electronic device in a hazardous environment and, in response, enabling a voltage restriction circuit in a supply line between the battery and the portable electronic device to reduce the voltage delivered by the battery below the maximum safe voltage, and supplying electrical power to the portable electronic device at the reduced voltage. Enabling the voltage restriction circuit may include deactivating a MOSFET switch that includes a forward biased body diode to allow the body diode to provide a fixed voltage drop. The method also includes determining that the voltage delivered by the battery no longer exceeds the maximum safe voltage and, in response, disabling the first voltage restriction circuit by activating the MOSFET, thus allowing the body diode to be bypassed.

公开(公告)号：US11165494B2

公开(公告)日：2021-11-02

申请号：US16821765

申请日：2020-03-17

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： V. C. Prakash V K Chacko ,  Yi Lynn Kok ,  Wai Mun Lee ,  Siew Im Low

IPC: H04W4/00 ,  H04B7/26 ,  H04L5/14 ,  H04B1/44 ,  H04W72/04 ,  H04W84/08

Abstract: Portable communications device and method for full duplex operation in a time division multiple access radio system. The method includes providing a switch for connecting one of a first voltage controlled oscillator and a second voltage controlled oscillator to a synthesizer. The synthesizer generates a first frequency when connected to the first voltage controlled oscillator and generates a second frequency when connected to the second voltage controlled oscillator. The method also includes controlling, using an electronic processor coupled to the switch, the switch to connect the first voltage controlled oscillator to the synthesizer for a first timeslot, and controlling, using the electronic processor, the switch to disconnect the first voltage controlled oscillator from the synthesizer and connect the second voltage controlled oscillator to the synthesizer for a second timeslot. The second timeslot is immediately adjacent to the first timeslot.

公开(公告)号：US11108253B2

公开(公告)日：2021-08-31

申请号：US16226293

申请日：2018-12-19

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Mohd Faisal Abdullah ,  Wai Mun Lee ,  Kow Chee Chong ,  Macwien Krishnamurhti

IPC: H02J7/00 ,  H01M10/42 ,  H02H1/00 ,  H02H7/18

Abstract: A device, battery and system to reduce battery leakage is provided. The system includes a battery, a battery-powered device, and an interface therebetween comprising cell contacts and a data interface. The battery comprises: a cell; a low-power protection circuit; and a high-power protection circuit configured to receive an indication via the data interface that disables the high-power protection circuit, leaving the low-power protection circuit enabled. The battery-powered device comprises: a high-power subsystem used when the battery-powered device is in an operating state; a switch between the cell contacts and the high-power subsystem; and one or more sensing circuits configured to, in response to determining one or more of a power-off state and a low-battery state: open the switch to the high-power subsystem; and transmit, to the battery, via the data interface, the indication.

公开(公告)号：US20180181732A1

公开(公告)日：2018-06-28

申请号：US15393136

申请日：2016-12-28

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin Lim ,  Boon Kheng Hooi ,  Wai Mun Lee ,  Mun Yew Tham

IPC: G06F21/32

Abstract: Methods and systems are provided in this disclosure for operating an electronic device. The electronic device includes a user interface, a microphone, and an electronic processor. The electronic processor determines whether a user assistance restriction is established for a current functional operation of the electronic device. The microphone captures an audio stream and the electronic processor analyzing the audio stream to identify spoken words captured by the microphone. The electronic processor detects a violation of the user assistance restriction for the current functional operation of the electronic device based at least in part on a correlation between one or more of the identified spoken words captured by the microphone and a current functional operation of the electronic device. The electronic processor adjusts one or more operations of the electronic device in response to detecting the violation of the user assistance restriction.

公开(公告)号：US20180059903A1

公开(公告)日：2018-03-01

申请号：US15245793

申请日：2016-08-24

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin Lim ,  Boon Kheng Hooi ,  Wai Mun Lee ,  Mun Yew Tham

IPC: G06F3/0481 ,  G06F17/24 ,  G06F3/0488 ,  G06F3/02

CPC classification number: G06F3/04817 ,  G06F1/163 ,  G06F3/02 ,  G06F3/0233 ,  G06F3/0481 ,  G06F3/04883 ,  G06F3/04886 ,  G06F17/24

Abstract: Systems and methods described for text entry for multi-user text-based communication using a portable communication device with a graphical user interface shown on a display. A plurality of text character icons are displayed on a display by an electronic processor in a center area of the graphical user interface and messages are displayed along a perimeter area of the graphical user interface. A selection of one or more text character icons in the center area of the graphical user interface is detected and a new text message is generated based on the detected selection of the one or more text character icons. The new text message is chronologically inserted and displayed in accordance with the chronological sequence along the perimeter of the graphical user interface. The new text message is then transmitted from the device.

公开(公告)号：US20170365097A1

公开(公告)日：2017-12-21

申请号：US15186690

申请日：2016-06-20

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin Lim ,  Chee Kit Chan ,  Boon Kheng Hooi ,  Wai Mun Lee

IPC: G06T19/00 ,  G06F3/0488 ,  G06F3/0484 ,  G06T11/60 ,  G06F3/0481

CPC classification number: G06T19/006 ,  G06F3/017 ,  G06F3/04817 ,  G06F3/04842 ,  G06F3/0488 ,  G06T11/60

Abstract: A system and method for communicating with an augmented reality display system. The method includes generating, with an electronic processor, a first image at the augmented reality display system, the augmented reality display system including a field-of-view. The method further includes generating a second image on a portable electronic device. The method further includes positioning the portable electronic device within the field-of-view of the augmented reality display system. The method further includes capturing the second image, by an image sensor, at the augmented reality display system. The method further includes displaying the second image overlaid on the first image.

公开(公告)号：US20170338681A1

公开(公告)日：2017-11-23

申请号：US15159169

申请日：2016-05-19

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin Lim ,  Chee Kit Chan ,  Murali Kuyimbil ,  Wai Mun Lee ,  Lee Sun Ooi ,  Ying Hooi Tan ,  Wooi Ping Teoh

IPC: H02J7/02 ,  H02J7/00 ,  H02J50/12

Abstract: A method and device for wireless power transfer is provided. The device includes a plurality of charging holders positioned adjacent to each other. The method includes generating a first magnetic field using a first transmit coil in a first charging holder. The method further includes generating a second magnetic field using a second transmit coil in a second charging holder positioned adjacent to the first charging holder. The method further includes magnetically coupling the first and second magnetic field to a receive coil of a portable electronic device, wherein magnetically coupling includes transferring power from the first and second magnetic field to the receive coil of the portable electronic device, the first magnetic field and the second magnetic field configured to have a synchronized phase.

公开(公告)号：US11855672B2

公开(公告)日：2023-12-26

申请号：US17651302

申请日：2022-02-16

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Wai Mun Lee ,  Hui Boon Chua ,  Alexander Oon ,  Kee Sin Thong ,  Soon Leng Yap

IPC: H04B1/04 ,  H04B1/00 ,  H04B1/16 ,  H04B1/44

CPC classification number: H04B1/1615 ,  H04B1/006 ,  H04B1/44

Abstract: A converged device with dual RFPA technology for a dynamic switchable mode. One example provides a communication device comprising a RF transmitter system and a controller. The RF transmitter system includes a plurality of RFPAs, each RFPA having a biasing system and outputting an output signal, and a summing junction, wherein the output signal of each RFPA are combined to form an output RF transmitter signal. The controller is configured to control the biasing state of each biasing system to a nominal bias state for a first mode of the communication device. The controller is configured to control a first plurality of offset voltages applied to each biasing system for a second mode of the communication device. The controller is configured to control a second plurality of offset voltages applied to each biasing system for a third mode of the communication device.

公开(公告)号：US20210297150A1

公开(公告)日：2021-09-23

申请号：US16821765

申请日：2020-03-17

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： V. C. Prakash V K Chacko ,  Yi Lynn Kok ,  Wai Mun Lee ,  Siew Im Low

IPC: H04B7/26 ,  H04L5/14 ,  H04W72/04 ,  H04B1/44

Abstract: Portable communications device and method for full duplex operation in a time division multiple access radio system. The method includes providing a switch for connecting one of a first voltage controlled oscillator and a second voltage controlled oscillator to a synthesizer. The synthesizer generates a first frequency when connected to the first voltage controlled oscillator and generates a second frequency when connected to the second voltage controlled oscillator. The method also includes controlling, using an electronic processor coupled to the switch, the switch to connect the first voltage controlled oscillator to the synthesizer for a first timeslot, and controlling, using the electronic processor, the switch to disconnect the first voltage controlled oscillator from the synthesizer and connect the second voltage controlled oscillator to the synthesizer for a second timeslot. The second timeslot is immediately adjacent to the first timeslot.