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Väänänen
Ari K. Väänänen, Oulu FI
| Patent application number | Description | Published |
|---|---|---|
| 20120086701 | Combined digital modulation and current dimming control for light emitting diodes - A method includes providing an input signal identifying a desired brightness for one or more LEDs to first and second parallel control paths. The method also includes generating a digital modulation control signal using the first control path, generating a current control signal using the second control path, and driving the one or more LEDs using the control signals. The method further includes performing compensation in at least one of the control paths to compensate for an increased efficiency of the one or more LEDs. Generating the control signals could include (i) adjusting the digital modulation control signal while maintaining the current control signal at a substantially constant value for a range of lower LED brightness values and (ii) adjusting the current control signal while maintaining the digital modulation control signal at a maximum value or within a range of maximum values for a range of higher LED brightness values. | 04-12-2012 |
Ari Kalevi Väänänen, Oulu FI
| Patent application number | Description | Published |
|---|---|---|
| 20120119715 | CONTROL CIRCUITRY IN A DC/DC CONVERTER FOR ZERO INDUCTOR CURRENT DETECTION - A converter controller for discharge of a coil used in a DC/DC converter including a voltage detector connected to monitor a state of a diode connected between the coil and ground and an offset comparator, having an adjustable offset, for causing a coil discharge path to be interrupted. The comparator is provided with an initial high offset so that for at least a first converter switching period, the coil will have sufficient charge when the coil discharge path is interrupted to cause the diode to become forward biased as determined by the voltage detector. The offset is periodically reduced until the coil is sufficiently discharged so that the diode is not forward biased, with that value of offset being optimum and thus used in subsequent switching periods. | 05-17-2012 |
| 20120153915 | BUCK OR BOOST DC-DC CONVERTER - A control circuit for controlling a DC-DC converter, with the converter including an inductor and associated switching circuitry, with the switching circuitry including a first transistor switch connected intermediate an input voltage terminal and a first terminal of the inductor, a second transistor switch connected intermediate the first terminal of the inductor and a circuit reference, a third transistor switch connected intermediate a second terminal of the inductor and an output voltage terminal and a fourth transistor switch connected intermediate the second terminal of the inductor and the circuit reference. Mode control circuitry responsive to separate buck and boost comparators and configured to cause the switching circuitry to switch among a pass phase where the first and second transistor switches are ON, a boost phase where the first and third transistors are ON and a buck phase where the second and third transistors are ON, with first selected switching periods beginning operation in the pass phase followed, in response to an output of the buck comparator, with operation in the buck phase and with second selected switching periods beginning operation in the pass phase followed, in response to an output of the boost comparator, to operation in the boost phase. | 06-21-2012 |
Heikki Väänänen, Tampere FI
| Patent application number | Description | Published |
|---|---|---|
| 20120208165 | Indicator of Satisfaction - The invention relates to a method for measuring personal satisfaction by means of a device for giving feedback, which comprises an internal power source and at least two selector switches for giving feedback, indicating the type of the feedback, a memory for storing feedback data, and a data transmission module for transmitting the feedback data. The method comprises: presenting the subject for the feedback, receiving feedback from at least one person giving feedback, on the basis of the selection of a selector switch, storing the data on the feedback in the memory of the device for giving feedback, and transmitting the feedback data at a predetermined time from the device for giving feedback to a server in a wireless manner. The invention also relates to a device for giving feedback and a data processing system to be used in the method. | 08-16-2012 |
Jenni Väänänen, Helsinki FI
| Patent application number | Description | Published |
|---|---|---|
| 20110148772 | APPARATUS WITH MULTIPLE DISPLAYS - An apparatus including a first surface having at least one display, a second surface having at least one display, and a third surface having at least one display. The first, second and third surface form an outer surface of the apparatus, the outer surface being generally of a triangular shape. | 06-23-2011 |
| 20110151935 | APPARATUS COMPRISING A SLIDING DISPLAY PART - An apparatus including a first part slidingly attached to a second part, the first part having a main display and a secondary display, wherein the first part has a surface providing the main display, and wherein the surface bends or folds forming a side or side surface that provides the secondary display. | 06-23-2011 |
Johannes Väänänen, Oulu FI
| Patent application number | Description | Published |
|---|---|---|
| 20090275225 | AIRTIGHT ELECTRICAL SOCKET - A water and/or airtight electrical socket for portable electronic devices includes sealing elements that are shaped like an arc, and arranged to seal only a portion of the perimeter of the socket-plug interface. When this arc element experiences pressure, it will mechanically relay the force caused by the pressure only to that section of the perimeter of the socket-plug interface that it is arranged to seal. It will not relay mechanical forces any further. This way, the mechanical effect of any extra asymmetric pressure will simply be limited to increasing the pressure of the seal in the perimeter section of that particular sealing element, thereby tightening the seal further still. This allows the socket opening to be sealed in a water- and/or airtight manner even in asymmetric pressure conditions, both when there is no plug in the socket and also when a plug is inside the socket. | 11-05-2009 |
| 20100267266 | AIRTIGHT ELECTRICAL SOCKET - A water and/or airtight electrical socket for portable electronic devices includes sealing elements that are shaped like an arc, and arranged to seal only a portion of the perimeter of the socket-plug interface. When this arc element experiences pressure, it will mechanically relay the force caused by the pressure only to that section of the perimeter of the socket-plug interface that it is arranged to seal. It will not relay mechanical forces any further. This way, the mechanical effect of any extra asymmetric pressure will simply be limited to increasing the pressure of the seal in the perimeter section of that particular sealing element, thereby tightening the seal further still. This allows the socket opening to be sealed in a water- and/or airtight manner even in asymmetric pressure conditions, both when there is no plug in the socket and also when a plug is inside the socket. | 10-21-2010 |
Kai Väänänen, Espoo FI
| Patent application number | Description | Published |
|---|---|---|
| 20090207789 | Shared ip multimedia resource reservation - The invention is based on the idea of managing multimedia resource reservation by a solution in which, for a first user terminal, a first media terminal is searched and reserved ( | 08-20-2009 |
Kai Väänänen, Espoo FI
| Patent application number | Description | Published |
|---|---|---|
| 20090207789 | Shared ip multimedia resource reservation - The invention is based on the idea of managing multimedia resource reservation by a solution in which, for a first user terminal, a first media terminal is searched and reserved ( | 08-20-2009 |
Mikko Kalervo Väänänen, Helsinki FI
| Patent application number | Description | Published |
|---|---|---|
| 20110269487 | ELECTRONIC SHORT MESSAGING AND ADVERTISING METHOD AND DEVICE - The invention relates to an electronic short messaging and advertising method where minimal initiative is required from the consumer. Some embodiments of the invention may also be applied to an electronic sales method. The invention may also be applied for normal short messaging. The electronic short messaging method for collect calling may send transmissions to at least one subscriber terminal via the Internet and/or the telephony network. The method may include sending a first transmission to a recipient subscriber terminal for display, wherein the first transmission defines one or more active alternatives including at least one of initiating a collect call and deleting the first transmission. The method may also include calculating costs associated with at least one of the first transmission and the one or more active alternatives. | 11-03-2011 |
| 20110294469 | INSTANT VIDEO AND VOICEMAIL MESSAGING METHOD AND MEANS - The invention relates to the field of instant messaging. More specifically the invention relates to a server centric method and unit for instant voice and video mail messaging. Even more particularly the invention relates to voicemail messaging with mobile terminals. The inventive methods and units under study allow faster voice messaging and enable similar, but not identical audio/video message “ping ball”. The sending of voicemail in accordance with the invention is instantaneous and involves no different telephone numbers for the sender to remember. The reception of messages is always instantaneous, provided the recipient is available, and only if not available, may the delivery of the messages be delayed. | 12-01-2011 |
| 20120066327 | VOICEMAIL SHORT MESSAGE SERVICE METHOD AND MEANS AND A SUBSCRIBER TERMINAL - The invention relates to a voicemail short messaging method ( | 03-15-2012 |