Motorola Corporation

Motorola Solutions, Inc.

Other

Motorola Mobility LLC

John E Herrmann

Michael D Geren

Roy L Kerfoot, Jr

John Wendell Oglesbee

Grant H Lloyd

Willard F Amero, Jr

Roger L Boyer

Mark C Taraboulos

Amy T Herrmann

Roy L Kerfoot

Chi T Tran

Martin Hague Ramsden

Kow Chee Chong

Macwien Krishnamurthi

William B Kiger

Edmond Louie

Donald L Flowers

Frederick J Weissinger

Scott J Arendell

Warren B Albert

Viranga L Wijeratne

Dipti V Desai

Jennifer K Collier

Scott H Richards

Peter J Bartels

Kevin K Maggert

Kevin J Schechtel

Robert Michael Johnson, Jr

Robert J Higgins

Charles William Friedli

William C Bohne

Due Quoc Huynh

Edward E Li

David W Wallis

Micheal M Austin

David M Demuro

Jeffrey Lee Cutcher

Zbynek A Capurka

Muhamad Ridzuan Azizan

Bradley E Long

Poh Huat Low

John Daniel Bean

Thomas P Kirby

Alan L Foster

Willard Francis Amero, Jr

Curtis L Whetten

Thean Song Ooi

Edward W Brumley, Jr

Myra Aileen Kincaid

James Lee Blackwell, Jr

Jenny Collier

Ashok R Patil

Edward W Brumley

Victor C McKeighan

Jauhari Abd Ghafar

Michael T F Loh

Mark J Terranova

Mark C, Taraboulos

A method for charging a battery includes detecting, with an electronic processor, a presence of the battery coupled to a charging interface. The method includes receiving, with the electronic processor, a command, the command including a charge mode. The method includes, in response to receiving the command, controlling a charging circuit coupled to the charging interface to charge the battery to a predetermined level based on the charge mode. The method includes, when the battery reaches the predetermined charge level, sending a battery control command, based on the charge mode, to control an active limiting circuit of the battery via a single wire data line coupled to the charging interface.

Systems and methods for reducing current drain in batteries

A multiunit charger including a base, a plurality of charging pockets coupled to the base, an accessory organization bar coupled to the base, and a charging circuit coupled to the base. Each one of the plurality of charging pockets is for charging a respective battery powered portable communication device. The accessory organization bar provides retention for a battery powered accessory device. The charging circuit charges the respective battery powered portable communication device. Also disclosed is a battery charging system having the multiunit charger and the accessory device. The accessory device may include a clip coupling the accessory device to the accessory organization bar. The charging circuit may include a transmitter antenna, and the accessory device-may include a receiver antenna in wireless charging communication with the transmitter antenna.

Multiunit charger

A method and apparatus for a battery protection circuit. One embodiment provides a method for protecting a battery including receiving, with a comparator, a first voltage, the first voltage including a switch voltage across a current limiting switch provided on a current path of a battery and coupled to a current limiting control circuit to limit current output by the battery. The method also includes receiving, with the comparator, a reference voltage and comparing, with the comparator, the first voltage and the reference voltage. The method further includes controlling, with the comparator, a control switch to open when the first voltage exceeds the reference voltage.

Battery protection circuit and method

A method and apparatus for detecting and responding to cell swell in one or more cells of a battery includes receiving one or more indications of cell swell from switching circuitry associated with a cell, determining if the battery is fit for purpose based on the one or more indications, and performing an action responsive to the one or more indications and whether the battery is fit for purpose.

Method and apparatus to detect and manage battery pack cell swell

A charging accessory () is provided. The charging accessory () comprises a mechanical attachment device, such as a clip (), and a receive coil () integrated within the clip, the receive coil for receiving a wireless charging signal (). A wearable lanyard () is coupled to the clip () for transferring power and charging signals. The charging accessory () can be worn and operated within a charging system () to power and charge a wearable electronic device ().

Charging apparatus, system and method

Disclosed herein are methods and systems for contactless battery discharging. One embodiment takes the form of a contactless power-transfer system that includes a wireless-communication interface, a controller connected to the wireless-communication interface, a magnetic-resonance circuit, a power-conditioning circuit connected to the magnetic-resonance circuit, and a load element connected to the power-conditioning circuit. The controller is configured to determine that a smart-battery system is in a discharge-needed state and responsively transmit, via the wireless-communication interface, a battery-discharge command instructing the smart-battery system to generate an oscillating magnetic field. The magnetic-resonance circuit is configured to couple with the generated oscillating magnetic field and responsively output a corresponding power signal. The power-conditioning circuit is configured to receive the power signal from the magnetic-resonance circuit, rectify the received power signal, and output the rectified power signal. The load element is configured to receive the rectified power signal from the power-conditioning circuit.

Methods and systems for contactless battery discharging

A method and apparatus for controlling access to one or more memories in a rechargeable battery includes a switching circuit that connects the memory to a device data contact, and disconnects the memory from a charger data contact, when the rechargeable battery is connected only to a device powered by a battery. The switching circuit, however, connects the memory to the charger data contact and disconnects it from the device data contact. In some embodiments a second memory that contains a subset of the data in the first memory is connected to the device data contact when the first memory is connected to the charger data contact.

Method and apparatus for controlling access to one or more memories in a rechargeable battery

An internal charging system controls charging of a battery used to power an electronic device when an external power source is connected to the device. The internal charging system can charge a battery that has a higher operating voltage than the voltage provided by the external power source. While charging the battery from the external power source, an internal charge controller can operate and inhibit functions of the device to indicate to user that a charging operation is commencing, and to prevent operation of the device when the battery voltage is too low to support such operation.

Method and apparatus for operating an internal charger system of a portable electronic device

A charging apparatus (), system () and method () are provided for charging and/or powering a wearable electronic device, such as electronic eyeglasses. The charging apparatus comprises an acoustic horn, a piezoelectric transducer, and charger circuitry for converting ultrasonic waves received at the horn into a charging signal. The charging signal is used for charging and/or powering the wearable electronic device while the device is being worn.

Ultrasonic charging apparatus, system and method

Body-worn wireless electronic devices may be powered by one or more wireless power sources. These wireless power sources may comprise body-worn wireless power sources and non body-worn wireless power sources. The sources are detected by the electronic device and are either prioritized based on being body-worn or non body-worn. The selection of sources for powering the electronic device(s) may alternatively be made based on predetermined parameters associated with the power sources. Optimal power transfer is thus obtained for the electronic devices while being worn.

Method and apparatus for a body-worn electronic device to dynamically select a power source in a wireless system

Embodiments include a modular battery charger having a main charging source and is configured to include at least one additional charging source that can be an auxiliary charging source or an external charging source. The additional charging sources can be added as modules to augment the total charging current that can be provided to a rechargeable battery. The modular battery charger can selectively enable or disable the additional charging sources while controlling the output current of the main charging source to adjust the charging current provided to a rechargeable battery.

Method and apparatus for charging a battery using multiple charging sources

A method and apparatus for multiplexing an electrical contact interface between two electrical devices uses a time differentiated enablement of two or more different circuit elements in a first electrical device that are accessed via the multiplexed contact by a second electrical device. A timing control circuit in the first electrical device enables and disables circuit elements in the first electrical device coupled to a shared information contact over time. The second electrical device interacts with a first circuit element during an initial period upon connection to the first electrical device, and then interacts with a second circuit element after the initial period.

Method and apparatus for a multiplexed contact between electrical devices

A method and apparatus for determining whether to enable a functionality of a battery powered device upon connection to a battery is embodied by providing at least one voltage threshold in a memory of the battery that corresponds to a usable operating range limit of the battery and that is accessible by the battery powered device. Upon connection to the battery, the battery powered device acquires the voltage threshold or thresholds from the battery and programs itself with the threshold or thresholds. The battery powered device then compares a voltage of the battery to the threshold or threshold to determine whether the enable the functionality.

Method and apparatus for loading voltage thresholds from a battery for a device

Embodiments include a portable rechargeable battery pack, system, and external adapter that allow the portable rechargeable battery pack to both power a host device though a set of host contacts and provide power through a set of charging contacts. The portable rechargeable battery pack includes a charge protection circuit that prevents an excessive discharge current through the charging contacts and allows high charge current when charging the portable rechargeable battery pack. A discharge circuit allows a low level discharge current through the charging contacts to provide power to other devices.

Portable rechargeable battery pack and external adapter for same

A method and apparatus for determining the condition of a rechargeable battery determines a dynamic impedance of the battery while discharging the battery, and determines a battery condition category based on the dynamic impedance. The battery can be discharged in a manner that recovers the stored energy being discharged from the battery.

Apparatus and method for discharging a battery and determining a condition of the battery

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Suwanee, GA, United States of America

John E Herrmann