公开(公告)号：US12160278B2

公开(公告)日：2024-12-03

申请号：US17660846

申请日：2022-04-27

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Bing Qin Lim ,  Chern Yee Kok ,  Siew Im Low ,  Alexander Oon ,  Yew Hui Liew ,  Ming Yeh Koh

IPC: H04B17/13 ,  H04B1/04 ,  H04B1/18 ,  H04B17/12

Abstract: A portable radio is provided that performs an impedance measurement to determine a radio frequency (RF) load type connected to an antenna port of the portable radio. The portable radio includes an impedance measurement circuit and a tunable matching circuit operatively coupled thereto through an RF switch A sweep generator injects an LMR frequency sweep to the RF load during non-transmit or non-receive time slots for the impedance measurement. The tunable matching circuit is configured as a radio frequency (RF) bypass during the impedance measurement, thereby enabling the impedance measurement circuit to directly measure the impedance of the RF load coupled to the RF port and identify the RF load as either a land mobile radio (LMR) antenna or equipment (wideband load). When the RF load is determined to be an LMR antenna, then the matching circuitry is tuned for the identified antenna. When the RF load is determined to be wideband equipment, then the matching circuitry remains bypassed.

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.

公开(公告)号：US11289835B2

公开(公告)日：2022-03-29

申请号：US16803135

申请日：2020-02-27

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Chun Wen Ooi ,  Jorge L. Garcia ,  Siew Im Low ,  Kay Siang Sim ,  Wooi Ping Teoh

IPC: H05K1/11 ,  H01R12/70 ,  H01R12/71 ,  H05K1/03 ,  H05K1/09

Abstract: A printed circuit board (PCB) connector interface module and an accessory system. The module including a first layer, a second layer, and a plurality of inner layers. The first layer includes a first set of contact pads configured to electrically connect to an accessory device, and a heat and scratch resistant coverlay that is adjacent to and has a first surface that is level with a first surface of the first set of contact pads. The second layer including a second set of contact pads configured to electrically connect to an internal printed circuit board (PCB) of an electronic apparatus. The plurality of inner layers including one or more printed circuit boards (PCB) and a plurality of contact vias, wherein the plurality of contact vias electrically connect the first set of contact pads to the second set of contact pads.

公开(公告)号：US20210273358A1

公开(公告)日：2021-09-02

申请号：US16803135

申请日：2020-02-27

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Chun Wen Ooi ,  Jorge L. Garcia ,  Siew Im Low ,  Kay Siang Sim ,  Wooi Ping Teoh

IPC: H01R12/70 ,  H01R12/71

Abstract: A printed circuit board (PCB) connector interface module and an accessory system. The module including a first layer, a second layer, and a plurality of inner layers. The first layer includes a first set of contact pads configured to electrically connect to an accessory device, and a heat and scratch resistant coverlay that is adjacent to and has a first surface that is level with a first surface of the first set of contact pads. The second layer including a second set of contact pads configured to electrically connect to an internal printed circuit board (PCB) of an electronic apparatus. The plurality of inner layers including one or more printed circuit boards (PCB) and a plurality of contact vias, wherein the plurality of contact vias electrically connect the first set of contact pads to the second set of contact pads.

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：US10136295B1

公开(公告)日：2018-11-20

申请号：US15798883

申请日：2017-10-31

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Kong Chin Chee ,  Soon Hoe Lim ,  Siew Im Low ,  Pei Shi Liew

IPC: H04W4/90 ,  H04M1/725 ,  H04W4/02 ,  H04L29/08

Abstract: A device, system and method for public safety assistance detection is provided. The device comprises a communication interface; a location determining device; an input device; a memory storing keywords; and a controller. The controller implements: an assistance application; and at least one monitored application at which alphanumeric input is received using the input device, each of the assistance application and the at least one monitored application hosted by different respective servers. When the alphanumeric input is received at the at least one monitored application, the controller provides the alphanumeric input to the assistance application. When the alphanumeric input is received at the assistance application includes one or more keywords, the controller transmits, using the interface, at least a portion of the alphanumeric input to a server that hosts the assistance application, as well as a current location determined using the location determining device.