Patent application number | Description | Published |
20120169384 | FREQUENCY DIVIDER ARRANGEMENT AND METHOD FOR PROVIDING A QUADRATURE OUTPUT SIGNAL - A frequency divider arrangement for providing a quadrature output signal with a quadrature output signal frequency, includes a signal source for providing a base signal with a base signal frequency at the output side. Further, the frequency divider arrangement includes a first integer number quadrature divider with a first divider ratio for receiving the base signal on the input side and for providing a first quadrature signal with a first quadrature signal frequency according to the first divider ratio of the first integer number quadrature divider. | 07-05-2012 |
20120201175 | FILTERING USING IMPEDANCE TRANSLATOR - This disclosure relates to low noise amplifiers (LNAs) and more particularly to LNAs integrated on integrated circuit (IC) chips along with radio frequency (RF) amplifiers. In one implementation, an impedance translator is coupled to an amplifier, the impedance translator to cause the amplifier to selectively amplify the one or more components of a received signal. | 08-09-2012 |
20120207064 | Receiver for Receiving RF-Signals in a Plurality of Different Communication Bands and Transceiver - A receiver for receiving RF-signals in a plurality of different communication bands, each communication band including a receive frequency range and a transmit frequency range includes a plurality of receiving ports, a plurality of input circuits, a first inductor and a second inductor. Each receiving port is configured to receive RF-signals in a receive frequency range of a communication band. Each input circuit is connected to an associated receiving port for processing RF-signals applied to the receiving port. The first inductor is connected to a first group of input circuits and the second inductor is connected to a second group of input circuits, wherein the first group of input circuits and the second group of input circuits are disjunct. The receiving ports associated with the first group of input circuits are configured to receive RF-signals in a first group of communication bands, wherein in the first group of communication bands, none of the transmit frequency ranges overlap with one of the receive frequency ranges. The receiving ports associated with the second group of input circuits are configured to receive RF-signals in a second group of communication bands, wherein in the second group of communication bands, none of the transmit frequency ranges overlaps with one of the receive frequency ranges. | 08-16-2012 |
20130194114 | Analog-to-Digital Converter, Signal Processor, and Method for Analog-to-Digital Conversion - An analog-to-digital converter for converting an input signal includes a sigma-delta modulator for receiving an analog modulator input signal and for providing a digital modulator output signal and an interference cancellation loop. The interference cancellation loop includes a digital filter, a digital-to-analog converter, and a signal combiner. The digital filter is configured to amplify the sigma-delta output signal in a frequency band, attenuate the sigma-delta output signal outside the frequency band and a transition band surrounding the frequency band, and provide a filtered digital feedback signal. The digital-to-analog converter is configured to convert the filtered digital signal to a cancellation signal. The signal combiner is configured to combine the input signal with the cancellation signal resulting in the modulator input signal, in order to at least partially cancel interference signal portions within the input signal. | 08-01-2013 |
20140155016 | RECEIVER FOR RECEIVING RF-SIGNALS IN A PLURALITY OF DIFFERENT COMMUNICATION BANDS AND TRANSCEIVER - A receiver for receiving RF-signals in a plurality of different communication bands, each communication band including a receive frequency range and a transmit frequency range includes a plurality of receiving ports, a plurality of input circuits, a first inductor and a second inductor. Each receiving port is configured to receive RF-signals in a receive frequency range of a communication band. Each input circuit is connected to an associated receiving port for processing RF-signals applied to the receiving port. The first inductor is connected to a first group of input circuits and the second inductor is connected to a second group of input circuits, wherein the first group of input circuits and the second group of input circuits are disjunct. The receiving ports associated with the first group of input circuits are configured to receive RF-signals in a first group of communication bands, wherein in the first group of communication bands, none of the transmit frequency ranges overlap with one of the receive frequency ranges. The receiving ports associated with the second group of input circuits are configured to receive RF-signals in a second group of communication bands, wherein in the second group of communication bands, none of the transmit frequency ranges overlaps with one of the receive frequency ranges. | 06-05-2014 |
20140155126 | PUSH-PULL AMPLIFIER WITH QUIESCENT CURRENT ADJUSTER - A push-pull amplifier has an input node and a series connection of two resistors. The series connection comprises a first terminal, a second terminal, and a third terminal. A first resistor of the two resistors is connected between the first terminal and the second terminal. A second resistor is connected between the second and third terminals. The input node is connected to the second terminal. A first controllable current source is connected to the first terminal of the series connection for sourcing a first current to the series connection. A second controllable current source is connected to the third terminal of the series connection for sinking a second current from the series connection. A first transistor and a second transistor are connected in push-pull configuration, wherein a control input of the first transistor is connected to the first terminal of the series connection and a control input of the second transistor is connected to the third terminal of the series connection. | 06-05-2014 |
20140167846 | AMPLIFIER, MOBILE COMMUNICATION DEVICE AND METHOD FOR AMPLIFYING - An amplifier includes an amplifying stage configured to provide an amplifier output signal based on a combination of a received amplifying stage input signal and a received amplified version of the amplifying stage input signal. | 06-19-2014 |