Patent application number | Description | Published |
20090072872 | Control circuit and dithering method - There is provided a control circuit of a switch mode power supply including a random number generator configured to form an optimized n-degree polynomial based on the minimum power-on cycle time in order to form a uniform distribution of output signals, a switch control block configured to control output signals of the switch control block such that the complementary output stages of the switch control block conduct at different times on the basis of the output signals received from the random number generator and a dither control block configured to generate a synchronized dither current by minimizing glitches at each differential stage of a default reference current based on the output signals received from the switch control block, and to combine the generated synchronized dither current with a reference current of a voltage ramp generator. | 03-19-2009 |
20090143032 | Control circuit and control method - There is provided a control circuit including a sampling controller configured to sample an output voltage of a power converter at an appropriate time slot by opening a control loop. A soft-start circuit configured to enable soft-starting of an internal soft-start reference voltage to start from the sampled output voltage and to control the internal soft-start reference voltage to a predetermined target value in order to pre-charge the output voltage close to an input voltage level, or to continue charging the output voltage to a predetermined output voltage value. | 06-04-2009 |
20090174381 | CONTROLLER FOR A POWER SUPPLY - A controller for controlling a load output. In various embodiments, the controller may include a closed loop. In some embodiments, the closed loop may have a least one controllable characteristic. In one embodiment, the controller may be configured to control the at least one controllable characteristic in response to changes in the load. | 07-09-2009 |
20090200996 | Controlling power supply in radio transmitter - A switched mode power supply unit realized by an integrated circuit comprising a control circuit controlling the operation of the switched mode power supply unit, wherein the control circuit is configured to provide a plurality of different circuit configurations for different operating environments. The circuit configuration for the control circuit is defined by a control signal received by the control circuit. | 08-13-2009 |
Patent application number | Description | Published |
20110080882 | Reservation of Spectrum Resources in White Spaces - A white space entity reserves spectrum in white space from a reservation system. Consequently, the white space entity may utilize television bands that are unused at a specified time period and geo-location in order to support different services such as wireless audio transmission, networking, video surveillance, and video conferencing. The white space entity requests reservation of spectrum resources from the reservation system by sending a reservation request. The request includes request parameters that may include geo-location, model number or manufacture code number, priority of entity, reservation time period, and maximum power level. The reservation system consequently verifies the request from the priority of the white space entity and the availability of white space spectrum for the desired time period. The white space entity then extracts confirmation parameters from a reservation confirmation message and subsequently transmits on white spectrum in accordance with the parameters. | 04-07-2011 |
20120185429 | Method, Apparatuses and Computer Program for Maintaining Databases - There is disclosed a method, apparatus and a computer code to maintain databases. In the method a first database containing information of a usage of a frequency spectrum is maintained for a first geographical area by the apparatus. Information is received from a second database apparatus on a second geographical area. The first database apparatus determines whether said first geographical area and said second geographical area are at least partly overlapping. A linkage table is maintained to provide an indication on the result of the determination, wherein said indication is indicative of whether said first geographical area and said second geographical area are at least partly overlapping. | 07-19-2012 |
20150373554 | METHODS AND APPARATUS FOR SPECTRUM COORDINATION - Methods and apparatus for spectrum coordination are described. A method of spectrum coordination includes a spectrum coordinator receiving a request for shared spectrum from a CRS that the spectrum coordinator supports. The request includes at least one minimum protection requirement. The spectrum coordinator determines protection criteria for the CRS based on the at least one minimum protection requirement received from the CRS. The spectrum coordinator sends the protection criteria for the CRS to a geo-location database for use in assigning shared spectrum to other CRSs that the spectrum coordinator does not support. | 12-24-2015 |
Patent application number | Description | Published |
20120007737 | PROVIDING A USER ALERT - A method, apparatus and computer program are provided. The method comprises: determining that an event has occurred; obtaining, from at least one detector, a detection of one or more bio-signals from a user; and processing the detection of the one or more bio-signals to decide whether to control at least one user output device to initiate a user alert, contemporaneously with the occurrence of the event, indicating that the event has occurred. | 01-12-2012 |
20120007740 | CONTROLLING A USER ALERT - A method, apparatus and computer program are provided. The method comprises: performing a first detection of at least one bio-signal from at least one user; controlling a user output device to initiate a user alert, after performing the first detection of the at least one bio-signal; performing a second detection of the at least one bio-signal from the at least one user, after initiating the user alert; and processing the first detection of the at least one bio-signal and the second detection of the at least one bio-signal to determine whether one or more changes in the at least one bio-signal pass a significance test. | 01-12-2012 |
20120157789 | METHOD, APPARATUS AND COMPUTER PROGRAM - A method, apparatus and computer program wherein the method includes: obtaining, from a detector, a detection of at least one bio-signal of a user of an apparatus; determining a mode of operation of the apparatus when the at least one bio-signal occurred; and correlating the at least one detected bio-signal of the user with the determined mode of operation in a bio-signal profile of the user of the apparatus. | 06-21-2012 |
20150091730 | Controlling A User Alert - A method, apparatus and computer program are provided. The method comprises: performing a first detection of at least one bio-signal from at least one user; controlling a user output device to initiate a user alert, after performing the first detection of the at least one bio-signal; performing a second detection of the at least one bio-signal from the at least one user, after initiating the user alert; and processing the first detection of the at least one bio-signal and the second detection of the at least one bio-signal to determine whether one or more changes in the at least one bio-signal pass a significance test. | 04-02-2015 |