Inventor

RUOTSALAINEN TARMO

FI17 patents

⚠️ This page may combine multiple inventors who share the name “RUOTSALAINEN TARMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RUOTSALAINEN TARMO

NOKIA CORP

Method and apparatus for implementing a class D driver and speaker system

Low capacitance, low kickback noise input stage of a multi-level quantizer with dithering and multi-threshold generation for a multi-bit sigma-delta modulator

Adaptive sigma-delta data converter for mobile terminals

Multi-level quantizer with current mode DEM switch matrices and separate DEM decision logic for a multibit sigma delta modulator

Method and apparatus for suppressing tones induced by cyclic dynamic element matching (DEM) algorithms

Method and apparatus for measuring battery charge and discharge current using a direct analog-to-digital conversion of a charge/discharge replica current

Switched voltage-mode dither signal generation for a sigma-delta modulator

Electronic circuit for a switching power amplifier and method for switching the output stage of a switching power amplifier

Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces

Active current mode sampling circuit

Mixer circuit

ERICSSON TELEFON AB L M

Clock generation circuit with fast-startup standby mode

Method for diagnosing power supply failure in a wireless communication device

Clock generation circuit with fast-startup standby mode

Switched mode power supply output stage configuration

NOKIA MOBILE PHONES LTD

Method and apparatus for providing signal dependent dither generator for sigma-delta modulator

RUHA ANTTI

Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces