Patents by Inventor Kari Kalliojarvi
Kari Kalliojarvi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8396482Abstract: Means and a method for determination of a distance between a transmitting station and a receiving station is disclosed. In the method a characteristic parameter is determined for the radio propagation environment of the receiving station. At least one feature of a signal that has been received at the receiving station is measured, said feature being such that it can be used for the determination of the distance between the stations. The distance is then computed based on said measured signal feature and the characteristic parameter.Type: GrantFiled: June 30, 2000Date of Patent: March 12, 2013Assignee: Nokia CorporationInventor: Kari Kalliojarvi
-
Publication number: 20110070885Abstract: In an exemplary embodiment a cognitive radio/user equipment CR/UE receives information of where at least one cognitive control radio channel resides from at least one of the following sources: a database sharing information on licensed spectrum users, and a cognitive pilot channel CPC sharing information on licensed spectrum users. The CR/UE uses the received information to access the at least one CPC. In more specific exemplary embodiments: the information of where the at least one cognitive control radio channel resides comprises the used frequency for the at least one cognitive control radio channel; in response to at least one of expiration of a periodic timer, discovery of interference from a primary user on a channel, and entering a new geographic area, the database or CPC is checked or re-checked to detect from the received information that the used frequency for the CRC channel has changed.Type: ApplicationFiled: September 7, 2010Publication date: March 24, 2011Inventors: Paivi M. Ruuska, Kari Kalliojarvi
-
Publication number: 20100250722Abstract: A system for facilitating the configuration of access to resources residing within an operating environment comprising multiple apparatuses. Apparatuses may establish a common operating environment based on interactions taking place via a shared memory space residing on one or more of the apparatuses. Apparatuses that desire to interact with other apparatuses also participating in the common operating environment, for example in order to access resources residing on the other apparatuses, may initially obtain communication configuration information that is usable for establishing links to the other apparatuses.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Applicant: NOKIA CORPORATIONInventors: Arto Tapio PALIN, Heikki Ilmari BERG, Kari KALLIOJARVI
-
Patent number: 7772826Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and wherein the lightning detector is a mobile RF device provided with radio interfaces for at least two communication channels or frequency bands, whereby at least one of which is normally a telecom channel/frequency range and wherein these channels/ranges are used in lightning detection.Type: GrantFiled: November 24, 2008Date of Patent: August 10, 2010Assignee: Nokia CorporationInventors: Joni Jantunen, Jakke Mäkelä, Terho Kaikuranta, Jukka Reunamäki, Tom Ahola, Arttu Uusitalo, Kari Kalliojärvi
-
Publication number: 20090179628Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and wherein the lightning detector is a mobile RF device provided with radio interfaces for at least two communication channels or frequency bands, whereby at least one of which is normally a telecom channel/frequency range and wherein these channels/ranges are used in lightning detection.Type: ApplicationFiled: November 24, 2008Publication date: July 16, 2009Inventors: Joni Jantunen, Jakke Makela, Terho Kaikuranta, Jukka Reunamaki, Tom Ahola, Arttu Uusitalo, Kari Kalliojarvi
-
Patent number: 7511467Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and wherein the lightning detector is a mobile RF device provided with radio interfaces for at least two communication channels or frequency bands, whereby at least one of which is normally a telecom channel/frequency range and wherein these channels/ranges are used in lightning detection.Type: GrantFiled: October 14, 2005Date of Patent: March 31, 2009Assignee: Nokia CorporationInventors: Joni Jantunen, Jakke Mäkelä, Terho Kaikuranta, Jukka Reunamäki, Tom Ahola, Arttu Uusitalo, Kari Kalliojärvi
-
Patent number: 7254484Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the mobile lightning detector is provided with an antenna, an amplifier front-end, an A/D converter and a digital signal processor, and wherein the lightning detector is a mobile RF device provided with an audio codec whereby the preamplifier of the codec is used for amplification of the detected lightning signal, the A/D converter of the codec is used for the A/D conversion of the amplified lightning signal, and whereby the digital audio processing unit of the codec is used for the signal processing of the lightning detection.Type: GrantFiled: October 14, 2005Date of Patent: August 7, 2007Assignee: Nokia CorporationInventors: Joni Jantunen, Terho Kaikuranta, Kari Kalliojärvi, Jakke Mäkelä, Asko Rintamäki, Jukka Reunamäki, Arttu Uusitalo
-
Publication number: 20070088504Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the mobile lightning detector is provided with an antenna, an amplifier front-end, an A/D converter and a digital signal processor, and wherein the lightning detector is a mobile RF device provided with an audio codec whereby the preamplifier of the codec is used for amplification of the detected lightning signal, the A/D converter of the codec is used for the A/D conversion of the amplified lightning signal, and whereby the digital audio processing unit of the codec is used for the signal processing of the lightning detection.Type: ApplicationFiled: October 14, 2005Publication date: April 19, 2007Inventors: Joni Jantunen, Terho Kaikuranta, Kari Kalliojarvi, Jakke Makela, Asko Rintamaki, Jukka Reunamaki, Arttu Uusitalo
-
Publication number: 20070085525Abstract: A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and wherein the lightning detector is a mobile RF device provided with radio interfaces for at least two communication channels or frequency bands, whereby at least one of which is normally a telecom channel/frequency range and wherein these channels/ranges are used in lightning detection.Type: ApplicationFiled: October 14, 2005Publication date: April 19, 2007Inventors: Joni Jantunen, Jakke Makela, Terho Kaikuranta, Jukka Reunamaki, Tom Ahola, Arttu Uusitalo, Kari Kalliojarvi
-
Patent number: 7158503Abstract: A telecommunications system comprising: a plurality of transmitters capable of transmitting data in superframes, each superframe comprising a plurality of frames, and each frame comprising a plurality of slots; the transmitters being arranged in groups, each group comprising a number of base stations, each group of base stations being assigned one or more slot numbers which are different from those of other groups and each of the transmitters of each group being assigned a different frame number, each transmitter being arranged to operate at reduced transmission power for a period commencing in the allocated slot or slots assigned to its group in the frame assigned to it.Type: GrantFiled: July 7, 2000Date of Patent: January 2, 2007Assignee: Nokia CorporationInventors: Kari Kalliojarvi, Isabella Modonesi
-
Publication number: 20050111406Abstract: In a multicarrier modulation communication system, subcarriers are allocated to a plurality of users using a plurality of sets of sequential subcarriers. The plurality of sets of sequential subcarriers may be allocated for transmitting information to the plurality of users or for transmitting information from the plurality of users. A multicarrier modulation communication system and the multicarrier modulation communications device is also discussed.Type: ApplicationFiled: January 15, 2004Publication date: May 26, 2005Inventors: Pirjo Pasanen, Olav Tirkkonen, Kari Kalliojarvi
-
Patent number: 6625138Abstract: The invention relates to a data transmission method used in a CDMA-type radio system. A base station and terminal equipments exchange data at least in a packet switched mode, and a terminal equipment transmits to the base station on a random access channel a random access signal comprising at least a preamble (100) and a data part (102) multiplied by a spreading code. A predetermined set of spreading codes and signature sequences (104) are stored in the terminal equipment, and each signature sequence (104) determines one spreading code. The terminal equipment selects one signature sequence (104) by a random process from the set of signature sequences and adds the selected signature sequence (104) to the preamble (100) of the random access signal. Further, the terminal equipment uses the spreading code corresponding to the selected signature sequence (104) in the data part (102) of the random access signal.Type: GrantFiled: October 9, 2001Date of Patent: September 23, 2003Assignee: Nokia CorporationInventors: Juha Kärnä, Antti Toskala, Pekka Soininen, Kari Kalliojärvi, Ari Hottinen, Risto Wichman
-
Patent number: 6594248Abstract: The invention relates to a data transmission method used in a CDMA-type radio system. A base station and terminal equipments exchange data at least in a packet switched mode, and a terminal equipment transmits to the base station on a random access channel a random access signal comprising at least a preamble (100) and a data part (102) multiplied by a spreading code. A predetermined set of spreading codes and signature sequences (104) are stored in the terminal equipment, and each signature sequence (104) determines one spreading code. The terminal equipment selects one signature sequence (104) by a random process from the set of signature sequences and adds the selected signature sequence (104) to the preamble (100) of the random access signal. Further, the terminal equipment uses the spreading code corresponding to the selected signature sequence (104) in the data part (102) of the random access signal.Type: GrantFiled: September 28, 1999Date of Patent: July 15, 2003Assignee: Nokia CorporationInventors: Juha Kärnä, Antti Toskala, Pekka Soininen, Kari Kalliojärvi, Ari Hottinen, Risto Wichman
-
Patent number: 6580920Abstract: A method for use by a mobile station in a cellular telephone network in determining a setting for gain control for a first idle period in a succession of idle periods of the serving base station, the method including: determining whether at the location of the mobile phone, the load attributable to any one of the neighboring or active set base stations differs substantially from the load attributable to at least one other of the neighboring or active set base stations, the determining being based only on information already available to the mobile station; and determining the gain control setting based on a calculation of the relative power decrease made according to a prescription that depends on whether the load attributable to any one of the neighboring or active set base stations differs from the load attributable to at least one other of the neighboring or active set base stations.Type: GrantFiled: June 5, 2001Date of Patent: June 17, 2003Assignee: Nokia Mobile Phones Ltd.Inventor: Kari Kalliojärvi
-
Publication number: 20030017837Abstract: A method for use by a mobile station in a cellular telephone network in determining a setting for gain control for a first idle period in a succession of idle periods of the serving base station, the method including: determining whether at the location of the mobile phone, the load attributable to any one of the neighboring or active set base stations differs substantially from the load attributable to at least one other of the neighboring or active set base stations, the determining being based only on information already available to the mobile station; and determining the gain control setting based on a calculation of the relative power decrease made according to a prescription that depends on whether the load attributable to any one of the neighboring or active set base stations differs from the load attributable to at least one other of the neighboring or active set base stations.Type: ApplicationFiled: June 5, 2001Publication date: January 23, 2003Applicant: NOKIA MOBILE PHONES LTDInventor: Kari Kalliojarvi
-
Patent number: 6507927Abstract: A method is presented for estimating the reliability of a data sequence after Viterbi decoding. Within the Viterbi decoding, corresponding to an initial time instant, the possible initial states for the Viterbi decoding are established (801). After proceeding to a subsequent time instant (804), at each state corresponding to the present time instant, a surviving trellis path is selected among the trellis paths coming into that state (805). The steps of proceeding and selecting are repeated until a final time instant (807), and at said final time instant a final surviving trellis path is selected to represent the decoded data sequence. At the selection step of the Viterbi decoding, a characteristic reliability metric is updated separately in association with each selected surviving trellis path (806).Type: GrantFiled: February 8, 2000Date of Patent: January 14, 2003Assignee: Nokia Mobile Phones Ltd.Inventor: Kari Kalliojärvi
-
Publication number: 20020114297Abstract: The invention relates to a data transmission method used in a CDMA-type radio system. A base station and terminal equipments exchange data at least in a packet switched mode, and a terminal equipment transmits to the base station on a random access channel a random access signal comprising at least a preamble (100) and a data part (102) multiplied by a spreading code. A predetermined set of spreading codes and signature sequences (104) are stored in the terminal equipment, and each signature sequence (104) determines one spreading code. The terminal equipment selects one signature sequence (104) by a random process from the set of signature sequences and adds the selected signature sequence (104) to the preamble (100) of the random access signal. Further, the terminal equipment uses the spreading code corresponding to the selected signature sequence (104) in the data part (102) of the random access signal.Type: ApplicationFiled: October 9, 2001Publication date: August 22, 2002Applicant: Nokia Telecommunications OyInventors: Juha Karna, Antti Toskala, Pekka Soininen, Kari Kalliojarvi, Ari Hottinen, Risto Wichman
-
Patent number: 6438723Abstract: A method is provided for reliably receiving digital information from a transmitting device. The information to be received is arranged in discrete subunits (201, 202, 203, 204, 301, 302, 303, 304) so that a predetermined number of subunits correspond to a superunit (200, 300). It is encoded with a certain error detection code (402), corresponding to a certain error detection decoding method, and additionally with a certain error correction code (403), corresponding to a certain error correction decoding method. According to the invention a superunit is error correction decoded (405), and during the error correction decoding (405), the decoding reliability of each subunit of the superunit to be decoded is separately estimated. The error correction decoded superunit is error detection decoded (406), and during the error detection decoding it is detected, whether or not there were errors in the superunit to be decoded.Type: GrantFiled: February 8, 2000Date of Patent: August 20, 2002Assignee: Nokia Mobile Phones Ltd.Inventor: Kari Kalliojärvi
-
Patent number: 6121927Abstract: A radio signal travels over a radio channel in the form of multipath propagation, whereby a signal received by the base station and transmitted by the terminal equipment is composed of multipath components propagated over different distances and thus reaching the receiver at different times. Thus, the information required for computing the bearing of the received signal can be extracted from the arrival time differences of the multipath propagated signal. An antenna array formed by a plurality of antenna elements receives first the multipath propagated signal. Next, means (41, . . . , 4N) for determination of channel impulse response form an estimate of the radio channel impulse response from the received signal of each antenna array element, after which correlation means (46) correlate each channel impulse response estimate with a reference estimate selected from the group of said channel impulse response estimates.Type: GrantFiled: April 27, 1999Date of Patent: September 19, 2000Assignee: Nokia Telecommunications OyInventor: Kari Kalliojarvi
-
Patent number: RE41106Abstract: A telecommunications system comprising: a plurality of transmitters capable of transmitting data in superframes, each superframe comprising a plurality of frames, and each frame comprising a plurality of slots; the transmitters being arranged in groups, each group comprising a number of base stations, each group of base stations being assigned one or more slot numbers which are different from those of other groups and each of the transmitters of each group being assigned a different frame number, each transmitter being arranged to operate at reduced transmission power for a period commencing in the allocated slot or slots assigned to its group in the frame assigned to it.Type: GrantFiled: July 7, 2000Date of Patent: February 9, 2010Inventors: Kari Kalliojarvi, Isabella Modonesi