Patents by Inventor Mika Salmi
Mika Salmi 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).
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Patent number: 11445505Abstract: A method of operating a radio receiver arranged to receive a plurality of data symbols transmitted on one of a predetermined set of frequencies. The method comprises receiving a first set of data symbols at a first transmission frequency. The first set of data symbols comprises a message indicating a first frequency sub-set. A synthesiser is calibrated for the one or more frequencies in the first frequency sub-set. A second set of data symbols transmitted on at least one of said one or more frequencies from the first sub-set is received. It is determined from the second set of data symbols whether a network quality metric exceeds a threshold. The synthesiser is calibrated for one or more frequencies in a second frequency sub-set when the network quality metric exceeds the threshold. The second sub-set comprises frequencies that are not in the first sub-set.Type: GrantFiled: June 20, 2019Date of Patent: September 13, 2022Assignee: Nordic Semiconductor ASAInventors: Kjell Östman, Mika Salmi, Tommi Kangassuo
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Publication number: 20210266899Abstract: A method of operating a radio receiver arranged to receive a plurality of data symbols transmitted on one of a predetermined set of frequencies. The method comprises receiving a first set of data symbols at a first transmission frequency. The first set of data symbols comprises a message indicating a first frequency sub-set. A synthesiser is calibrated for the one or more frequencies in the first frequency sub-set. A second set of data symbols transmitted on at least one of said one or more frequencies from the first sub-set is received. It is determined from the second set of data symbols whether a network quality metric exceeds a threshold. The synthesiser is calibrated for one or more frequencies in a second frequency sub-set when the network quality metric exceeds the threshold. The second sub-set comprises frequencies that are not in the first sub-set.Type: ApplicationFiled: June 20, 2019Publication date: August 26, 2021Applicant: Nordic Semiconductor ASAInventors: Kjell ÖSTMAN, Mika SALMI, Tommi KANGASSUO
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Patent number: 9737336Abstract: The invention concerns an anatomically personalized and mobilizing external support configured to be arranged to support a physical joint between a first and a second bone group, which support comprises at least one first external auxiliary frame, which is configured to be attached to the first bone group using invasive attachment means, at least one second external auxiliary frame, which is configured to be attached to the second bone group using invasive attachment means, and at least one external auxiliary joint, which is fitted between the first and the second auxiliary frame.Type: GrantFiled: December 23, 2014Date of Patent: August 22, 2017Assignee: Aalto University FoundationInventors: Jan Erik Lindahl, Jari Salo, Jukka Tuomi, Roy Björkstrand, Mika Salmi, Eero Huotilainen, Mikko Roiha
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Patent number: 8885734Abstract: A system (21) comprises a first circuit (23) for transmitting information to a second circuit (22). The first circuit (23) comprises a signal generator (34) arranged to generate a signal (31) for transmission to the second circuit (22). The signal (31) has a first state for causing the second circuit (22) to perform a first operation and a second state for causing the second circuit (22) to perform a second operation. The signal generator (34) comprises means to modulate the generated signal (31) during a data burst period (52) to encode data into the generated signal (31). The data burst period (52) occurs within a period in which the generated signal (31) is in the second state. The signal (31) is modulated such that the encoded data is distinguishable from the generated signal (31). In an embodiment, a data burst period (52a, 52b) comprises a plurality of data periods (54) during which the state of the signal is representative of the data encoded in the signal (31).Type: GrantFiled: December 22, 2009Date of Patent: November 11, 2014Assignee: ST-Ericsson SAInventors: Janne Peltonen, Antti Rauhala, Mika Salmi
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Patent number: 8750364Abstract: The frequency response of a digital filter, such as a pre-emphasis filter in a signal transmitter having a phase-locked loop, is adjusted using interpolation of the filter coefficients, enabling sets of filter coefficients to be pre-computed or generated as needed in the transmitter. The phase error behavior of the digital filter can be significantly improved.Type: GrantFiled: December 21, 2012Date of Patent: June 10, 2014Assignee: ST-Ericsson SAInventors: Jens Rosendahl, Ville Ruuska, Mika Salmi
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Publication number: 20110317776Abstract: A system (21) comprises a first circuit (23) for transmitting information to a second circuit (22). The first circuit (23) comprises a signal generator (34) arranged to generate a signal (31) for transmission to the second circuit (22). The signal (31) has a first state for causing the second circuit (22) to perform a first operation and a second state for causing the second circuit (22) to perform a second operation. The signal generator (34) comprises means to modulate the generated signal (31) during a data burst period (52) to encode data into the generated signal (31). The data burst period (52) occurs within a period in which the generated signal (31) is in the second state. The signal (31) is modulated such that the encoded data is distinguishable from the generated signal (31). In an embodiment, a data burst period (52a, 52b) comprises a plurality of data periods (54) during which the state of the signal is representative of the data encoded in the signal (31).Type: ApplicationFiled: December 22, 2009Publication date: December 29, 2011Inventors: Janne Peltonen, Antti Rauhala, Mika Salmi
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Publication number: 20080248766Abstract: A transmitter for generating modulated signals is shown, wherein in a first-type operating mode, a first digital signal is input into a digital-to-analog converter to obtain a first analog signal that is input into a first-type unit, in which a first-type modulated signal is generated in dependence on at least the first analog signal; and wherein in a second-type operating mode, a second digital signal is input into the digital-to-analog converter to obtain a second analog signal that is input into a second-type unit, in which a second-type modulated signal is generated in dependence on at least the second analog signal. Correspondingly, a wireless communication device is shown, as well as a base station, a module in a wireless communication device, a module in a base station, an integrated circuit, a method, a computer program and a computer program product.Type: ApplicationFiled: June 11, 2008Publication date: October 9, 2008Inventors: Seppo Rosnell, Mika Salmi, Simo Murtojarvi
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Patent number: 7403750Abstract: A transmitter for generating modulated signals is shown, wherein in a first-type operating mode, a first digital signal is input into a digital-to-analog converter to obtain a first analog signal that is input into a first-type unit, in which a first-type modulated signal is generated in dependence on at least the first analog signal; and wherein in a second-type operating mode, a second digital signal is input into the digital-to-analog converter to obtain a second analog signal that is input into a second-type unit, in which a second-type modulated signal is generated in dependence on at least the second analog signal. Correspondingly, a wireless communication device is shown, as well as a base station, a module in a wireless communication device, a module in a base station, an integrated circuit, a method, a computer program and a computer program product.Type: GrantFiled: April 25, 2005Date of Patent: July 22, 2008Assignee: Nokia CorporationInventors: Seppo Rosnell, Mika Salmi, Simo Murtojärvi
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Publication number: 20060240789Abstract: A transmitter for generating modulated signals is shown, wherein in a first-type operating mode, a first digital signal is input into a digital-to-analog converter to obtain a first analog signal that is input into a first-type unit, in which a first-type modulated signal is generated in dependence on at least the first analog signal; and wherein in a second-type operating mode, a second digital signal is input into the digital-to-analog converter to obtain a second analog signal that is input into a second-type unit, in which a second-type modulated signal is generated in dependence on at least the second analog signal. Correspondingly, a wireless communication device is shown, as well as a base station, a module in a wireless communication device, a module in a base station, an integrated circuit, a method, a computer program and a computer program product.Type: ApplicationFiled: April 25, 2005Publication date: October 26, 2006Inventors: Seppo Rosnell, Mika Salmi, Simo Murtojarvi
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Patent number: 7015763Abstract: This invention describes a method for a component/system level design of an adaptive radio receiver in electronic communication devices (e.g., mobile phones) by providing an automatic digital tuning of a voltage controlled oscillator of a phase locked loop (PLL) instead of a prior-art pre-calibration. A normal PLL for frequency locking is used which does not need any additional pre-calibration blocks to account for different temperatures or any other extreme conditions. If the current switch setting does not allow the locking, i.e., the VCO output signal frequency is still far away from a reference frequency, the PLL “coarse” tuning will cause the switch condition to change and bring the frequency within a reasonable range using an additional phase detector PD2 loop.Type: GrantFiled: August 30, 2004Date of Patent: March 21, 2006Assignee: Nokia CorporationInventors: Juha Hallivuori, Pauli Seppinen, Mika Salmi
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Publication number: 20060055468Abstract: This invention describes a method for a component/system level design of an adaptive radio receiver in electronic communication devices (e.g., mobile phones) by providing an automatic digital tuning of a voltage controlled oscillator of a phase locked loop (PLL) instead of a prior-art pre-calibration. A normal PLL for frequency locking is used which does not need any additional pre-calibration blocks to account for different temperatures or any other extreme conditions. If the current switch setting does not allow the locking, i.e., the VCO output signal frequency is still far away from a reference frequency, the PLL “coarse” tuning will cause the switch condition to change and bring the frequency within a reasonable range using an additional phase detector PD2 loop.Type: ApplicationFiled: August 30, 2004Publication date: March 16, 2006Applicant: NOKIA CORPORATIONInventors: Juha Hallivuori, Pauli Seppinen, Mika Salmi
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Patent number: 6784751Abstract: A resampling technique is used to reduce the noise and improve the signal quality in the output of a prescaler circuit (10). The resampling of the output of a last frequency divider stage is accomplished using at least one flip/flop (FF) (e.g., a D-type FF 18) that is clocked by a signal obtained from the input of the prescaler. This reduces or eliminates the noise caused by edge jitter in the output of the prescaler, as well as the effect of spurious signals generated by the prescaler. These teachings can be used in integer N PLLs and in fractional N PLLs, as well as in single and programmable dual or multi-modulus prescalers. Using this technique the current consumption of the prescaler frequency dividers (12, 14, 16) need not be increased in an effort to reduce the prescaler noise, thereby conserving current in battery powered and other applications.Type: GrantFiled: September 18, 2001Date of Patent: August 31, 2004Assignee: Nokia CorporationInventors: Mika Salmi, Mikael Svard
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Publication number: 20030052740Abstract: A resampling technique is used to reduce the noise and improve the signal quality in the output of a prescaler circuit (10). The resampling of the output of a last frequency divider stage is accomplished using at least one flip/flop (FF) (e.g., a D-type FF 18) that is clocked by a signal obtained from the input of the prescaler. This reduces or eliminates the noise caused by edge jitter in the output of the prescaler, as well as the effect of spurious signals generated by the prescaler. These teachings can be used in integer N PLLs and in fractional N PLLs, as well as in single and programmable dual or multi-modulus prescalers. Using this technique the current consumption of the prescaler frequency dividers (12, 14, 16) need not be increased in an effort to reduce the prescaler noise., thereby conserving current in battery powered and other applications.Type: ApplicationFiled: September 18, 2001Publication date: March 20, 2003Inventors: Mika Salmi, Mikael Svard