Inventor · disambiguated record
Tarmo Ruotsalainen
Also filed as: RUOTSALAINEN TARMO
17 granted patents·618 citations·filing 2001–2018
94Inventor score
Top patents by PatentIndex Score
17 records- 0197US7058463B1Method and apparatus for implementing a class D driver and speaker systemNOKIA CORP·Filed 2001·Granted Jun 6, 2006·163 cites·21 claims
- 0297US6473019B1Low capacitance, low kickback noise input stage of a multi-level quantizer with dithering and multi-threshold generation for a multi-bit sigma-delta modulatorNOKIA CORP·Filed 2001·Granted Oct 29, 2002·109 cites·20 claims
- 0396US6577258B2Adaptive sigma-delta data converter for mobile terminalsNOKIA CORP·Filed 2001·Granted Jun 10, 2003·99 cites·31 claims
- 0496US6426714B1Multi-level quantizer with current mode DEM switch matrices and separate DEM decision logic for a multibit sigma delta modulatorNOKIA CORP·Filed 2001·Granted Jul 30, 2002·94 cites·18 claims
- 0588US6535155B2Method and apparatus for suppressing tones induced by cyclic dynamic element matching (DEM) algorithmsNOKIA CORP·Filed 2001·Granted Mar 18, 2003·44 cites·20 claims
- 0687US9484893B1Clock generation circuit with fast-startup standby modeERICSSON TELEFON AB L M·Filed 2015·Granted Nov 1, 2016·6 cites·20 claims
- 0782US6445318B1Method and apparatus for providing signal dependent dither generator for sigma-delta modulatorNOKIA MOBILE PHONES LTD·Filed 2001·Granted Sep 3, 2002·29 cites·19 claims
- 0876USRE47832EClock generation circuit with fast-startup standby modeERICSSON TELEFON AB L M·Filed 2018·Granted Jan 28, 2020·2 cites·38 claims
- 0972US6507171B2Method and apparatus for measuring battery charge and discharge current using a direct analog-to-digital conversion of a charge/discharge replica currentNOKIA CORP·Filed 2001·Granted Jan 14, 2003·30 cites·21 claims
- 1067US6768437B1Switched voltage-mode dither signal generation for a sigma-delta modulatorNOKIA CORP·Filed 2003·Granted Jul 27, 2004·19 cites·16 claims
- 1165US6819177B2Electronic circuit for a switching power amplifier and method for switching the output stage of a switching power amplifierNOKIA CORP·Filed 2003·Granted Nov 16, 2004·13 cites·17 claims
- 1264US10528110B2Method for diagnosing power supply failure in a wireless communication deviceERICSSON TELEFON AB L M·Filed 2014·Granted Jan 7, 2020·2 cites·13 claims
- 1350US8965304B2Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfacesRUHA ANTTI·Filed 2009·Granted Feb 24, 2015·0 cites·35 claims
- 1450US7239183B2Active current mode sampling circuitNOKIA CORP·Filed 2003·Granted Jul 3, 2007·6 cites·20 claims
- 1547US7702293B2Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfacesNOKIA CORP·Filed 2001·Granted Apr 20, 2010·2 cites·40 claims
- 1646US9768690B2Switched mode power supply output stage configurationERICSSON TELEFON AB L M·Filed 2014·Granted Sep 19, 2017·0 cites·16 claims
- 1739US8023923B2Mixer circuitNOKIA CORP·Filed 2004·Granted Sep 20, 2011·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →