| Patent application number | Description | Published |
|---|
| 20080218392 | Signal Receiver and Mobile Communication Device - A signal receiver processing circuit is for isolating a desired signal from analog input signal that is susceptible to variations in signal power, e.g. from a radio front end ( | 09-11-2008 |
| 20080298507 | Electronic Quadrature Device - An electronic quadrature device is provided comprising at least one I signal path (I) and at least one Q signal path (Q); at least one first sigma-delta modulator (DSDMI) and at least one first digital/analog converter unit (DACI) arranged in the at least one I signal path (I); and at least one second sigma-delta modulator (DSDMQ) and at least one second digital/analog converter unit (DACQ) arranged in the at least one Q signal path (Q). The at least one first sigma-delta modulator (DSDMI) is coupled to the at least one second sigma-delta modulator (DSDMQ) via at least one complex signal path (C | 12-04-2008 |
| 20090002211 | Radio Frequency Sigma-Delta-Modulator - A radio-frequency ΣΔ-modulator comprises a first mixer in the forward path for down-converting the signals in this forward path with a local oscillator frequency and a second mixer in the feedback path for up-converting the feedback signal with the same local oscillator frequency. Delays between the two mixing operations cause a loss of gain in the loop of the ΣΔ-modulator. An adjustable amplifier in the feedback path compensates for this loss of gain. | 01-01-2009 |
| 20100201551 | AUTOMATIC COMMON-MODE REJECTION CALIBRATION - The present invention relates to a circuit and a method for automatic common-mode rejection calibration in a differential conversion system and unbalance compensation for balancing the operation point of a circuit in the signal path and for enhancing the common-mode rejection. The circuit for automatic common-mode rejection calibration in a differential conversion system comprises an analog input stage for an analog input signal ( | 08-12-2010 |
| 20100216523 | METHOD AND SYSTEM FOR IMPULSE RADIO WAKEUP - Communication networks are implemented using a variety of devices and methods. In a particular embodiment for use in a communication network having RF-communication devices that communicate using a RF protocol, an RF-communication device is implemented with an RF transceiver ( | 08-26-2010 |
| 20110122005 | METHOD TO LINEARIZE THE OUTPUT FROM AN ADC - A method is disclosed of compensating the output of an ADC for non-linearity in the response of the ADC. The method comprises converting an analog input signal to uncorrected digital ADC output samples, applying a vector of correction variables to each of a block of uncorrected ADC output samples to provide a block of corrected ADC samples, and iteratively minimizing a measure of the spectral flatness of the block of corrected ADC samples with response to the vector of correction variables. | 05-26-2011 |
| 20110148678 | CONVERTER - A method of providing a value for each element of a sequence of elements in a converter, the values being for a present conversion cycle in operation of the converter, wherein a pointer position identifies an element in the sequence of elements for a conversion cycle. The method comprising:
| 06-23-2011 |
