Patent application number | Description | Published |
20080246878 | Teletext Processing Circuit - The invention relates to a device that comprises a memory circuit with memory cells that use floating gate storage transistors, which are conventionally called non-volatile memory cells. A particular embodiment relates to a teletext circuit. A teletext processing circuit comprising a decoder logic circuit and a memory circuit integrated together in an integrated circuit, the memory circuit comprising memory cells for storing teletext page data, the memory cells comprising floating gate storage transistors to store the teletext page data. The page data from memory is used to control the content of displayed teletext images. | 10-09-2008 |
20110215760 | BALANCING CIRCUIT FOR CHARGE STORAGE ELEMENTS - There is disclosed a charge balancing circuit (CBC) and method ( | 09-08-2011 |
20110316344 | INDUCTIVE CELL BALANCING - An energy storage cell arrangement has a shared inductor ( | 12-29-2011 |
20120105070 | SPECTROSCOPIC BATTERY-CELL IMPEDANCE MEASUREMENT ARRANGEMENT - A battery cell measurement system comprising a signal generator coupled to a pulse density modulation circuit generating a control signal which drives a switch connected between a first terminal of a battery cell and a first terminal of a bleeding impedance, a second terminal of the bleeding impedance being coupled to a second battery cell terminal. The first terminal is coupled to a first terminal of a second switch. The second terminal is coupled to a first terminal of a third switch. A second terminal of the second switch and second terminal of the third switch are coupled and are further coupled to a low-pass filter. A signal generated by the low-pass filter is inputted into an analog to digital converter, which provides a signal representative of either a signal across the bleeding impedance, or a signal between the battery cell terminals. | 05-03-2012 |
20120306504 | BATTERY IMPEDANCE DETECTION SYSTEM, APPARATUS AND METHOD - Various aspects of the present disclosure are directed to monitoring battery cells. In accordance with various embodiments, an energy storage cell apparatus includes a current injection circuit that separately inject current into individual ones of a plurality of battery cells that store energy, and an impedance-detection circuit detects an impedance characteristic of each of the plurality of battery cells in response to the injected current. A filter circuit receives impedance data regarding the detected impedance characteristic and separates low-frequency components of the impedance data from high-frequency components of the impedance data. A memory circuit stores data corresponding to high-bandwidth data including both the low-frequency components and the high-frequency components, and an access circuit provides the low-frequency components for the plurality of battery cells to a battery pack controller. The access circuit further accesses and provides the stored high-bandwidth data for a subset of the individual battery cells to the battery pack controller based upon available bandwidth for communicating the high-bandwidth data. | 12-06-2012 |
20120310562 | BATTERY MONITORING CIRCUIT, APPARATUS AND METHOD - Various aspects of the present disclosure are directed to monitoring battery cells. In accordance with various embodiments, a battery pack having a plurality of battery cells connected in series is monitored. Current is separately injected into individual ones of the plurality of battery cells, such as by operating a balancing circuit coupled across an individual cell, to inject current (e.g., positive or negative) into the cell. For each of the battery cells, an output is provided to indicate cell voltage of the battery cell responsive to the current injected therein. An output indicative of current through each of the battery cells is provided as well. From the respective outputs as corresponding to each individual cell, amplitude and phase characteristics of the current and voltage outputs for each of the cells are extracted to provide an indication of an impedance characteristic of the cell(s). | 12-06-2012 |
20130122332 | IN-CELL BATTERY MANAGEMENT DEVICE - Various embodiments relate to an in-cell battery management device including: an integrated circuit (IC) including a controller, a resistive balancer, a voltage sensor, and a pressure sensor; and an IC package that encloses the IC having a hole over the pressure sensor wherein the hole allows the pressure sensor to measure pressure in a battery cell; wherein the IC package is contact with the battery cell. | 05-16-2013 |
20140176055 | WIRELESS CHARGER - An apparatus (pad) and method for wirelessly charging a receiver are disclosed. The pad includes one or more NFC antennas which can receive an NFC signal from the receiver. The pad also contains one or more charging coils. Measurement of the signal strength at each charging NFC antenna helps determine which charging coil(s) should be utilized to effect the most efficient charging of the receiver. | 06-26-2014 |
20140176056 | Wireless Charging Apparatus and Method - A charging pad capable of charging a receiver according to a predetermined procedure is disclosed. The charging pad may have a plurality of charging coils and a controller for selecting an appropriate coil for charging the receiver. The receiver communicates with the charging pad via NFC, thereby indicating to the charging pad the appropriate procedure for charging the receiver. The controller then selects the appropriate coil and directs charging according to the appropriate procedure. | 06-26-2014 |
20140191710 | WIRELESS CHARGER - A wireless charger is disclosed. The charger contains a coil with a plurality of taps, thereby facilitating charging according to different frequencies and standards. Detection of the standard appropriate to a particular receiver may be accomplished by modulation of the power carrier or via low power modalities, including NFC or Bluetooth. | 07-10-2014 |
20140195803 | SECURE WIRELESS CHARGING - A wireless charging apparatus and method utilizing a secure element is disclosed. Illustratively, a receiver containing a secure element securely communicates with a charging pad also equipped with a secure element. The communication can be used to establish the identity of the receiver and facilitate billing for the wireless charging. The charging pad may further communicate in a secure manner with a server to authenticate the identity and other information about the receiver before providing wireless charging. Direct communication between the receiver and server is also contemplated. | 07-10-2014 |
20140266020 | WIRELESS CHARGING PAD AND METHOD - A wireless charging pad is illustratively disclosed. In an embodiment, the pad includes an NFC tag which is capable of receiving an NFC signal from the receiver and thereby turning on the pad's power supply to commence charging of the receiver. | 09-18-2014 |
20150019771 | DAISY CHAIN COMMUNICATION BUS AND PROTOCOL - A battery pack has first and second battery terminals, plural battery cells each with a battery element, a cell supervisor electrically connected to the battery element, and a communication section to communicate with the cell supervisor. The battery elements are connected serially between the first and second battery terminals. Bus interfaces are arranged in alternating fashion with the battery cells to define a daisy chain bus, each such bus interface being configured for signal communication, the interfaces respectively connecting the communication sections of two adjacent battery cells. A battery manager communicates with the battery cells via the daisy chain bus. The battery manager sends a command message to the battery cells using a through mode protocol, and each battery cell sends at least one of a confirmation message and a service request to the battery manager using a shift mode protocol. | 01-15-2015 |
20150071444 | SECURE WIRELESS CHARGING - A wireless charging apparatus and method utilizing a secure element is disclosed. Illustratively, a receiver containing a secure element securely communicates with a charging pad also equipped with a secure element. The communication can be used to establish the identity of the receiver and facilitate billing for the wireless charging. The charging pad may further communicate in a secure manner with a server to authenticate the identity and other information about the receiver before providing wireless charging. Direct communication between the receiver and server is also contemplated. | 03-12-2015 |