Patent application number | Description | Published |
20080297496 | ELECTRONIC DOCUMENT READING DEVICES - This invention generally relates to an electronic document reading device, that is to a device such as an electronic book which presents a document to a user on a display to enable the user to read the document. A portable flex-tolerant electronic document reading device, the device including a flex-tolerant display coupled to a flex-tolerant layer of pixel driver circuitry, and wherein said device has a physical configuration comprising a planar display surface and a rear surface having a frame around its outer perimeter to stiffen the device, the frame defining a central region of relatively reduced thickness compared with a thickness of said frame. | 12-04-2008 |
20080298083 | ELECTRONIC READING DEVICES - The invention relates to electronic devices, in particular consumer electronic devices, including an electrophoactive display, as well as to electronic document reading devices, sometimes called e-readers, such as electronic books. We describe an electronic device including an electroactive display and a light to illuminate said display, wherein said display has a viewing surface, and wherein said light is configured to illuminate said display from in front and to one side of an edge of said viewing surface, across said viewing surface and through a front-most surface of said display. | 12-04-2008 |
20100226581 | MOBILE BROWSING - The present invention resides in one aspect in a system including a user operable portable radio communication device and a server. The invention includes the portable radio communication device comprising a sensor adapted to allow automatic input of data to the portable radio communication device, a controller for controlling the device, a browser adapted to download content from the server, the controller being arranged to be responsive to data input via said sensor so as control the browser to download content from a server associated with the input data, means for providing for information personal to a user, and contextualization means configured to contextualize the downloaded content with the personal information. | 09-09-2010 |
Patent application number | Description | Published |
20110148200 | Over Voltage Protection of a Switching Converter - Embodiments for at least one method and apparatus of generating a regulated voltage are disclosed. One apparatus includes a voltage regulator. The voltage regulator includes regulator circuitry for generating a regulated voltage from a first power supply and a second power supply, and voltage spike protection circuitry for voltage-spike-protecting the regulator circuitry, wherein the voltage spike protection circuitry includes a dissipative element and a charge-storage circuit. One method includes a method of generating a regulated voltage. The method includes regulator circuitry generating a regulated voltage from an input voltage, and voltage-spike-protecting the regulator circuitry with voltage spike protection circuitry, wherein the voltage spike protection circuitry includes a dissipative element and a charge-storage circuit. | 06-23-2011 |
20110148368 | Stacked NMOS DC-To-DC Power Conversion - Embodiments for at least one method and apparatus of generating a regulated voltage are disclosed. One method includes generating the regulated voltage though controlled closing and opening of a series switch element and shunt switch element, the series switch element being connected between a first voltage supply and a common node, and the shunt switch being connected between the common node and a second supply voltage. The series switch element includes an NMOS series switching transistor stacked with an NMOS series protection transistor, and closing the series switch element during a first period includes applying a switching gate voltage to a gate of the NMOS series switch transistor of the series switch element, wherein the switching gate voltage has a voltage potential of at least a threshold voltage greater than a voltage potential of the common node. The shunt switch element includes an NMOS shunt switching transistor stacked with an NMOS shunt protection transistor, and the shunt switch element is closed during a second period. | 06-23-2011 |
20120229102 | Stacked NMOS DC-To-DC Power Conversion - Another embodiment includes a voltage regulator. The voltage regulator includes a series switch element connected between a first voltage supply and a common node, the series switch element comprising an NMOS series switching transistor, a shunt switch element connected between the common node and a second voltage supply, the shunt switch element comprising an NMOS shunt switching transistor. The voltage regulator further includes means for closing the series switch element during a first period by applying a switching gate voltage to a gate of the NMOS series switch transistor of the series switch element, wherein the switching gate voltage has a voltage potential of at least a threshold voltage greater than a voltage potential of the common node, means for closing the shunt switch element during a second period, the shunt switch element comprising an NMOS shunt switching transistor. | 09-13-2012 |
Patent application number | Description | Published |
20110309679 | Mult-Use Voltage Regulator - Embodiments for at least one method and apparatus of a multi-use voltage regulator providing a supply voltage to a power amplifier and at least one other device are disclosed. One method includes generating a plurality of regulated voltage supplies from an unregulated voltage. An output signal power level of the power amplifier is determined. A one of the regulated plurality of voltage supplies and the unregulated voltage supply is selected as a power amplifier voltage supply for the power amplifier based at least in part on the output signal power level of the power amplifier. If the selected power amplifier voltage supply is one of the plurality of regulated voltage supplies, then the selected one of the plurality of regulated voltage supplies is simultaneously provided to the power amplifier and the at least one other device. | 12-22-2011 |
20120257311 | Over Voltage Protection of a Switching Converter - Embodiments for at least one method and apparatus of generating a regulated voltage are disclosed. One apparatus includes a voltage regulator. The voltage regulator includes regulator circuitry for generating a regulated voltage from a first power supply and a second power supply, and voltage spike protection circuitry for voltage-spike-protecting the regulator circuitry. The voltage spike protection circuitry includes a charge-storage circuit, and at least one switching element, wherein the at least one switching element comprises a plurality of switching block segments. The charge-storage circuit includes charge-storage circuit segments, and each charge-storage circuit segment is physically closer to at least one of the plurality of switching block segments the charge-storage circuit segment protects, than any other switching block segment. | 10-11-2012 |
20130249505 | DC-DC CONVERTER ENABLING RAPID OUTPUT VOLTAGE CHANGES - Embodiments for methods, apparatus and systems for operating a voltage regulator are disclosed. One embodiment of the voltage regulator generates a switching voltage through controlled closing and opening of a series switch element and a shunt switch element. The voltage regulator further includes a switched output filter that includes a plurality of capacitors for filtering the switching voltage and generating an output voltage. A mode controller is operative to disconnect at least one of the plurality of capacitors upon receiving a first indicator, where disconnecting causes the at least one of the plurality of capacitors to electrically float, wherein while the at least one capacitor is disconnected the output voltage is changed from a first value to a second value, return the output voltage to a first value or a third value upon receiving a second indicator, and reconnect the at least one of the plurality of capacitors. | 09-26-2013 |
20140009226 | DECOUPLING CIRCUITS FOR FILTERING A VOLTAGE SUPPLY OF MULTIPLE POWER AMPLIFIERS - Embodiments for at least one method and apparatus of a voltage supply are disclosed. One voltage supply apparatus includes a voltage supply, a plurality of power amplifier (PA) decoupling circuits, and a plurality of power amplifiers. Each PA decoupling circuit is connected to the voltage supply and provides a filtered voltage supply to a corresponding one of the plurality power amplifiers. Each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits. | 01-09-2014 |