| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340636150 | By voltage | 22 |
| 20090102672 | FEATURES TO REDUCE LOW-BATTERY REPORTING TO SECURITY SERVICES AT NIGHT - A battery-powered RF sensor is provided for use in security and alarm systems for monitoring alarm state conditions, and transmitting an alarm state detection signal upon detection of an alarm state condition. The RF sensor is constructed to include an RF transmitting portion, a battery, a low-battery voltage level detection portion and a counter for periodically detecting an output voltage level of the battery, and comparing the voltage level to a first threshold voltage. If the detected battery output voltage level is determined to be less than the first threshold voltage, the low- or depleted-battery state is not immediately reported, but is reported at another time if the low-battery condition persists. That is, the low battery condition would preferably not be reported until daytime hours, other than for a dead battery condition. The reporting control is implemented by use of the low-battery voltage detection portion, which looks to a counter to determine the elapsed time since the low- or depleted-battery condition is detected. If the low- or depleted-battery condition persists until the counter counts down, the condition is automatically reported. | 04-23-2009 |
| 20090128346 | ALERT DEVICES AND METHODS FOR PORTABLE ELECTRONIC DEVICE REMOVAL FROM CHARGERS - Disclosed are devices and methods of electronic devices for activating an alarm when it is detected that an applied charging voltage has dropped below a threshold value. An electronic device is configured to detect the type of charger, for example, a bicycle charger or motorcycle charger, connected to the electronic device according to a charger attribute. The electronic device may further detect when the applied charging voltage has decreased below the predetermined threshold value. When the device is detected to be connected to a particular type of charger, and it is detected that the applied charging voltage has decreased below the threshold value, the alarm may be activated after a predetermined time. In this way, a user of a bicycle charger or other vehicle charger can be reminded to remove the electronic device from the charging cradle of the vehicle, helping to avoid loss or theft of the device. | 05-21-2009 |
| 20090140870 | Battery systems with embedded cell monitors related application - A battery pack is disclosed. The battery pack includes a battery cell and an RF cell monitor. The RF cell monitor is embedded in the battery cell and is operable for monitoring the battery cell and for generating an alert signal indicative of a predetermined condition of the battery cell. | 06-04-2009 |
| 20090278701 | SYSTEMS, METHODS AND APPARATUS FOR DETECTING REPLACEMENT OF A BATTERY IN A REMOTE CONTROL - Various embodiments of systems, methods and apparatus are provided for indicating to a user a low battery condition of a remote control for a controlled device. More particularly, a remote control detects a low battery condition as well as the replacement of batteries in the remote control. The remote control transmits a low battery message to a controlled device responsive to detecting a low battery condition. Similarly, the remote control transmits a battery status message to the controlled device responsive to detecting the replacement of batteries in the remote control. The controlled device utilizes the low battery message and the battery status message to determine whether to present a low battery indicator to a user regarding a low battery condition of the remote control. | 11-12-2009 |
| 20090303061 | METHOD AND APPARATUS FOR DISABLING AN ACTIVE DATA TAG DEVICE - The present invention discloses a data tag device ( | 12-10-2009 |
| 20100026505 | DIGITAL PHOTO FRAME WITH BATTERY INDICATOR - A digital photo frame (DPF) capable of indicating battery is provided. The DPF includes a light-emitting diode (LED) unit, a battery, a battery detection unit, a processing unit, and a display control unit. The battery detection unit is connected to the battery and is configured to detect the charge of the battery and output a low battery alarm signal when the charge of the battery is below a predetermined value. The processing unit is connected to the battery detection unit, and is configured to producing a control signal when receiving the low battery alarm signal. The display control unit is connected to the processing unit and the LED unit, and is configured to control the LED unit to change its display state when receiving the control signal. | 02-04-2010 |
| 20100060467 | TRANSMITTER WITH BATTERY STATUS INDICATOR - A battery powered transmitter is provided with a battery status circuit that determines an output voltage level associated with the battery. The battery status circuit is provided with multiple voltage reference thresholds. One or more visual voltage status indicators are electrically coupled with the battery status circuit. The battery status circuit actuates a visual voltage status indicator when the battery status circuit determines the voltage output level of the battery to be within a first output range. One or more additional visual voltage status indicators may be actuated when the battery status circuit determines the voltage output level of the battery to be within other output ranges. | 03-11-2010 |
| 20100141461 | ALARM SYSTEM AND ALARM DEVICE - Provided are an alarm system and an alarm device which are capable of enhancing a fail-safe function. A fire alarm device (A) operating as a master unit transmits a switching request signal to fire alarm devices operating as slave units at a predetermined timing, the switching request signal containing at least an own address and an address of a fire alarm device (B) that is to operate as the master unit next (S | 06-10-2010 |
| 20110050436 | Wakeup Device Detecting Voltage Variation in Standby Mode - A resume device is provided. The device detects voltage variation in standby mode. When a big voltage variation is detected, a resume process is run and a sound is played. Volume of the sound is adjustable and power is maintained within a proper range. Thus, power consumption is saved, efficiency is improved and resume process is enhanced. | 03-03-2011 |
| 20110084846 | Electromagnetic Whiteboard Pen - An electromagnetic whiteboard pen is disclosed, and particular an electromagnetic whiteboard pen capable of inking and digital inputting simultaneously is disclosed. The electromagnetic whiteboard pen has a marker for writing with ink and a coil for emitting electromagnetic signals. When user writes on an electromagnetic whiteboard by the marker, the coil emitting electromagnetic signals simultaneously. The electromagnetic whiteboard senses the electromagnetic signals to find and record the position and the moving of the electromagnetic whiteboard pen. Therefore, the writing on the electromagnetic whiteboard by inking can be record and converted to be digital signals for storing by the electromagnetic whiteboard when the electromagnetic whiteboard pen writes on the electromagnetic whiteboard. | 04-14-2011 |
| 20110163886 | Systems and Apparatus for Battery Replacement Detection and Reduced Battery Status Transmission in a Remote Control - Various mechanisms are described for indicating to a user a low battery condition of a remote control for a controlled device. More particularly, a remote control detects a low battery condition as well as the replacement of batteries in the remote control. The remote control transmits a low battery message to a controlled device responsive to detecting a low battery condition. The remote control refrains from transmitting one or more subsequent low battery messages to the controlled device prior to detection of replacement of batteries. The remote control transmits a battery status message to the controlled device responsive to detecting the replacement of batteries in the remote control. The controlled device utilizes the low battery message and the battery status message to determine whether to present a low battery indicator to a user regarding a low battery condition of the remote control. | 07-07-2011 |
| 20110285540 | SYSTEMS, METHODS AND APPARATUS FOR DETERMINING WHETHER A LOW BATTERY CONDITION EXISTS IN A REMOTE CONTROL - Various embodiments of systems, methods and apparatus are provided for adjusting a low battery detection thresholdin a remote control. An embodiment of a method includes determining a type of a battery powering a remote control of an entertainment device and determining a first low battery threshold for the battery based on the type of the battery. The first low battery threshold indicates a low battery condition of the remote control. Responsive to measuring a voltage of the battery, a determination is made regarding whether the voltage of the battery is below the low battery threshold. Responsive to determining that the voltage of the battery is below the first low battery threshold, a low battery message is transmitted to an entertainment device. The entertainment device utilizes the message to present an indicator to a user regarding the low battery condition of the remote control. | 11-24-2011 |
| 20120075106 | PORTABLE COMPUTER SYSTEM - A portable computer system including a battery, a power switch and a computer unit is provided. The battery provides a supply signal to the power switch. The computer unit includes an embedded controller (EC), a driver and a user interface device. The EC determines whether the battery satisfies a low power condition according to the supply signal. If so, the EC provides a driving supply signal. The driver determines whether the supply signal satisfies a low voltage condition according to the driving supply signal. If so, the driver triggers an alert event. The user interface device triggers a user notification event according to the alert event. The power switch is further turned on/off in response to an operation event for respectively providing the supply signal to power the computer unit and put the computer unit in a power cut-off state. | 03-29-2012 |
| 20120286960 | SENSOR DEVICE WITH PERSISTENT LOW POWER BEACON - One disclosed method involves providing a first device comprising a sensor configured to sense a stimulus experienced by the first device, a controller configured to process data received from the sensor and thereby obtain processed sensor data, a transmitter configured to wirelessly transmit the processed data, and a battery configured to supply power to at least the controller and the transmitter. The first device is operated in a first operational mode in which the sensor, the controller, and the transmitter are used at least occasionally to obtain and transmit processed data. When the battery is in a low power condition, the first device is operated in a second operational mode wherein the sensor, controller, and transmitter are not used to obtain and transmit processed sensor data, but wherein the first device at least occasionally transmits a signal that indicates a low power condition of the battery. | 11-15-2012 |
| 20130076519 | APPARATUS AND METHOD FOR CONTROLLING CHARGING AND DISCHARGING OF BATTERIES - An apparatus is electrically connected to a battery unit consisting of multiple batteries, an energy conversion system, and power-driven equipment. The apparatus sets number requirements of batteries to be connected to a discharge unit and a charge unit of the battery unit. When the power-driven equipment is started, the apparatus receives an open-circuit voltage of each battery detected by a sensor connected to the battery, and establishes connections of the batteries with the discharge unit or the charge unit according to the open-circuit voltages of the batteries and the number requirements. During the discharge unit supplying power to the power-driven equipment and the energy conversion system charging the charge unit, the apparatus monitors variations of the open-circuit voltages of the batteries, and switches the connections of batteries with the discharge unit or the charge unit according to associations between open-circuit voltages, cut-off discharge voltages, and nominal voltages of the batteries. | 03-28-2013 |
| 20140070952 | TRANSMITTER WITH BATTERY STATUS INDICATOR - A battery powered transmitter is provided with a battery status circuit that determines an output voltage level associated with the battery. The battery status circuit is provided with multiple voltage reference thresholds. One or more visual voltage status indicators are electrically coupled with the battery status circuit. The battery status circuit actuates a visual voltage status indicator when the battery status circuit determines the voltage output level of the battery to be within a first output range. One or more additional visual voltage status indicators may be actuated when the battery status circuit determines the voltage output level of the battery to be within other output ranges. | 03-13-2014 |
| 20140139344 | WARNING LIGHT DEVICES AND METHODS - An electronic device or tool including an indicator adapted to provide an indication when a predetermined amount of time of operation of the electronic device, for example about 10 minutes, remains in the power source. The indicator device indicates to a user that the user has a certain amount of time of operation of the electronic device before the electronic device will shut down and become inoperable. | 05-22-2014 |
| 20140145853 | State of Health Determination Without Unnoticed Battery Shut Down - In one embodiment, a battery control system, comprising: a plurality of battery units comprising a battery system; and a controller coupled to the plurality of battery units, the controller configured to monitor, for each battery unit, a first voltage and a second voltage, the first voltage corresponding to an absolute value of a shut-off voltage and a second voltage corresponding to a warning voltage, the first voltage smaller than the second voltage, wherein responsive to one of the battery units reaching the second voltage, the controller is configured to provide a first alert before the any of the battery units reaches the first voltage. | 05-29-2014 |
| 20140340232 | ELECTRONIC DEVICE WITH POWER INDICATION FUNCTION AND INDICATING METHOD THEREOF - An electronic device with a battery displays a label for indicating different power levels of the battery. The label comprises a plurality of columns. Each of the columns is capable of being illuminated. A number of the columns lighted correspond to a corresponding the power levels in a one-to-one relationship. The electronic device comprises a detection module, storage, an acquiring module, a check module, and a display module. The detection module detects the current voltage of the battery at regular intervals and stores the information in the storage. The acquiring module acquires a previous detected voltage from the storage. The check module checks whether the current voltage is a fluctuated voltage. The display displays the label with the numbers of the lighted columns corresponding to the power level which contains the previous detected voltage when the current voltage is a fluctuated voltage. | 11-20-2014 |
| 20150042480 | ADAPTIVE LOW-BATTERY WARNINGS FOR BATTERY-POWERED ELECTRONIC DEVICES - The disclosed embodiments provide a system that facilitates the use of an electronic device. The electronic device may be a keyboard, a mouse, a trackpad, a remote control, a mobile phone, a wireless phone, a toy, a portable media player, a game controller, and/or a camera. During operation, the system monitors a state-of-charge of a battery used to power the electronic device. Next, the system calculates a charge threshold associated with a low-battery warning for the battery based on the monitored state-of-charge. If the state-of-charge of the battery reaches the charge threshold, the system generates the low-battery warning. | 02-12-2015 |
| 20160156196 | ELECTRICAL TESTER | 06-02-2016 |
| 20180024202 | BATTERY CONDITION DETECTION IN HAND HYGIENE PRODUCT DISPENSERS | 01-25-2018 |
