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Vaananen

Juha Vaananen, Kiiminki FI

Patent application numberDescriptionPublished
20090149127Method for saving power in a wireless terminal and a terminal - The object of the invention is a method for controlling the power saving properties in a terminal, which utilizes cellular phone technology and short range radio frequency wireless communication features in order to increase the operative life of the batteries, and a terminal utilizing the method. In the method of the invention the activity state of the short range wireless communication utilization in the terminal determines the level of the short range wireless communication power save mode.06-11-2009

Mikko Vaananen, Espoo FI

Patent application numberDescriptionPublished
20100132787ACTIVE SOLAR CELL AND METHOD OF MANUFACTURE - Devices and methods for improving the efficiency of solar cells, and a solar cell thereof. One aspect involves a solar cell with a semiconductor layer (06-03-2010

Paavo Vaananen, Nokia FI

Patent application numberDescriptionPublished
20080317186Controlling phase locked loop - A method and apparatus for controlling phase locked loop are provided. The apparatus comprises a voltage controlled oscillator configured to generate an output signal with a frequency proportional to a control voltage fed into the oscillator; an analog loop filter connected to the oscillator and configured to form the control voltage for the oscillator; a charge pump configured to generate a current pulse into the loop filter; a phase-frequency detector operationally connected to the charge pump and configured to form waveforms, based on a reference signal and a feedback signal, the feedback signal being proportional to the output signal of the oscillator; and a controller configured to modulate the feedback signal on the basis of the frequency or phase error of the output signal of the voltage controlled oscillator and the reference signal.12-25-2008

Patent applications by Paavo Vaananen, Nokia FI

Paavo Sakari Vaananen, Nokia FI

Patent application numberDescriptionPublished
20100308871DELAY CHAIN CIRCUIT - A delay chain circuit including at least two delay elements, wherein each delay element is configured to: receive a first signal; output a second signal after a delay period; and be operable in at least two modes of operation wherein in a first mode of operation each delay element has a first delay period and in a second mode of operation each delay element has a second delay period.12-09-2010

Pasi J. Vaananen, Waltham, MA US

Patent application numberDescriptionPublished
20090109619METHOD APPARATUS FOR COOLING SYSTEM HAVING AN S-SHAPED AIR FLOW PATH FOR USE IN A CHASSIS - A method and apparatus cooling a chassis. The apparatus includes a telecommunication shelf structure or chassis (04-30-2009

Pasi Jukka Vaananen, Waltham, MA US

Patent application numberDescriptionPublished
20100216389System and Method For Restricting Airflow Through A Portion Of An Electronics Enclosure - An apparatus is disclosed for restricting air flow through an electronics enclosure. The apparatus may include a panel having at least one edge adapted to be secured to a surface of the electronics enclosure to thus place the panel in a path of a cooling air flow flowing through a cardcage portion of the enclosure. The panel may have a footprint that at least substantially fills an opening through which said cooling air flow flows through said cardcage portion of the enclosure. The panel may have a plurality of openings so that the panel reduces a volume of a cooling air flow flowing through the panel by a predetermined desired degree, and thus reduces a volume of the air flow through the cardcage to a desired volume.08-26-2010
20100216390Apparatus and Method for Restricting Air Flow Within an Electronic Equipment Enclosure - An air flow restrictor panel adapted for use in an electronics equipment enclosure to block a gap existing between a midplane and an electronics module positioned adjacent the midplane. The air flow restrictor panel may incorporate a main panel portion and a plurality of flanges extending from the main panel portion. The main panel portion may have a footprint sufficiently large in area to block the gap.08-26-2010
20100218920System And Method For Airflow Dividers For Use With Cooling Systems For An Equipment Enclosure - A cooling system that has a fan having a plurality of fan blades disposed in a housing, with the fan having an input side and an exhaust side. A flow divider component may be disposed parallel to an axial center of the fan and positioned adjacent to the housing of the fan, and adjacent to one of the input side or the exhaust side. The flow divider may further project away from the fan blades for channeling an air flow created by the fan blades.09-02-2010
20100220432System And Method For Supplying Power To Electronics Enclosures Utilizing Distributed DC Power Architectures - A power entry module (PEM) that is used with an electronics equipment enclosure. The PEM has a housing adapted to be coupled to a shelf of the electronics equipment enclosure. The housing has at least one pair of power cable lugs accessible from an exterior of the housing for coupling the PEM to a pair of power cables associated with a power feed. The PEM also has a backplane connector for coupling the PEM to a blackplane of the electronics enclosure. A distribution network is disposed within the PEM housing and forms at least a pair of electrically isolated power distribution buses for coupling electrical power provided from the power cables to each of the power distribution branches. Each power distribution branch independently provides electrical power to at least one blade supported within the electronics equipment enclosure.09-02-2010
20100220456System And Method For Blocking Lateral Airflow Paths Between Modules In An Electronic Equipment Enclosure - A gap filler member apparatus for blocking air flow through a gap existing between an edge of a first electronics board and a surface of a second electronics board that is disposed generally perpendicular to the first electronics board, where the first and second electronics boards are coupled by at least one pair of connectors and disposed within an electronics equipment enclosure, to block air flow through the gap. The apparatus has at least one rib extending therefrom, with the base portion being secureable to the surface of the second electronics board. A rib extends away from the base portion and has a height approximately equal to a height of the gap, and a length at least as long as a length of the gap so that the rib at least substantially blocks air flow through the gap.09-02-2010