| Signal Processing Devices Sweden AB Patent applications |
| Patent application number | Title | Published |
|---|
| 20110276284 | METHODS AND APPARATUSES FOR ESTIMATION AND COMPENSATION ON NONLINEARITY ERRORS - An estimation unit for estimating a nonlinearity error of a conversion circuit, such as an ADC, is adapted to receive a continuous-time input signal and output a digital output signal. In at least one embodiment, the continuous-time input signal is essentially bandlimited to an angular frequency band [ω | 11-10-2011 |
| 20100192027 | COMPENSATION OF MISMATCH ERRORS IN A TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTER - A method for the compensation of frequency-response mismatch errors in M-channel time-interleaved ADCs. The compensation is done utilizing a technique that makes use of a number of fixed filters, that approximate differentiators of different orders, and a few variable multipliers that directly correspond to parameters in polynomial models of the M channel frequency responses. A compensated M-channel time-interleaved ADC is based on and can perform the method. | 07-29-2010 |
| 20100182174 | COMPENSATION OF MISMATCH ERRORS IN A TIME-INTERLEAVED ANALOG- TO- DIGITAL CONVERTER - A method for the compensation of frequency-response mismatch errors in M-channel time-interleaved ADCs. The compensation is done through an M-periodic time-varying filter h | 07-22-2010 |
| 20100049483 | TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTER SYSTEM - A method and a module for estimating a plurality of relative channel-error for at least one signal with respect to a reference signal. The signals and are produced by an analog-to-digital module including parallel and time interleaved analog-to-digital converters and are received by an estimation module. The method is performed by the estimation module and includes defining a function representing a relationship between the reference signal and an arbitrary signal in the group of signals, selecting a first reference signal in the group of signals, selecting a second signal from the remaining signals in the group, optimizing the function so as to obtain an estimate of the plurality of relative channel-error, and repeating the selecting a second signal and optimizing the function for each remaining signal. | 02-25-2010 |
