Patent application number | Description | Published |
20090261900 | Apparatus for Coupling at Least One of a Plurality of Amplified Input Signals to an Output Terminal Using a Directional Coupler - An apparatus has an input terminal configured to receive an input signal, a network coupled to the input terminal and configured to provide a plurality of amplified input signals, and a directional coupler coupled to the network and configured to couple at least one of the plurality of amplified input signals to an output terminal. | 10-22-2009 |
20090289682 | Potential Converter Circuit - Embodiments of a potential converter circuit include a converter for converting a bipolar input signal to a unipolar output signal that only consumes current at a change of potential of the input signal. | 11-26-2009 |
20110105055 | SINGLE POLE MULTI THROW SWITCH - A single pole multi throw switch comprises a first switching unit, a second switching unit coupled to a common port and comprising a parasitic off state capacitance, and a matching unit. The matching unit may be coupled between the first switching unit and the common port, wherein the matching unit is configured to contribute, in conjunction with the parasitic off state capacitance of the second switching unit, to an impedance match if the first switching unit is active and the second switching unit is inactive. | 05-05-2011 |
20130021113 | Circuit arrangement with an antenna switch and a bandstop filter and corresponding method - Implementations are presented herein that include an antenna switch that includes a plurality of ports. A bandstop filter is coupled to at least one of the plurality of ports of the antenna switch and the bandstop filter is configured to attenuate a disturbing frequency. A transistor is configured to receive a control signal and to switch on the bandstop filter responsive to the control signal. | 01-24-2013 |
Patent application number | Description | Published |
20090256628 | Reference Current Circuit and Low Power Bias Circuit Using the Same - A reference current circuit has an input configured to receive an input current, a first transistor, a second transistor, and an output configured to provide a reference current. The input is directly connected to a control input of the second transistor and a first terminal of the first transistor, and is connected via a first resistor to a control input of the first transistor. The output is connected to a first terminal of the second transistor. A reference node is connected via a second resistor to the control input of the first transistor, directly to a second terminal of the first transistor and via a third resistor to a second terminal of the second transistor. | 10-15-2009 |
20100039160 | Switch - A switch includes a switching transistor, a switching resistor, connected between a control terminal of the switching transistor and a switching control terminal, and an accelerating element. The accelerating element includes a resistance smaller than a resistance of the switching resistor, the accelerating element being adapted to be connected in parallel to the switching resistor upon switching of the switching transistor until a voltage at the control terminal of the switching transistor has reached a predetermined value. | 02-18-2010 |
20110199146 | High-Frequency Switching Circuit - A high-frequency switching circuit includes a high-frequency switching transistor, wherein a high-frequency signal-path extends via a channel-path of the high-frequency switching transistor. The high-frequency switching circuit includes a control circuit and the control circuit is configured to apply at least two different bias potentials to a substrate of the high-frequency switching transistor, depending on a control signal received by the control circuit. | 08-18-2011 |
20110201281 | High Frequency Switching Circuit and Method for Determining a Power of a High Frequency Signal - A high frequency switching circuit, including a high frequency switching element. The high frequency switching element including a first channel terminal and a second channel terminal, wherein the high frequency switching element is configured to switchably route a high frequency signal via a channel path between the first channel terminal and the second channel terminal. The high frequency switching circuit further includes a power detection circuit, wherein the power detection circuit is configured to obtain a first measurement signal from the first channel terminal and a second measurement signal from the second channel terminal, and to combine the first measurement signal and the second measurement signal to derive, in dependence on both the first measurement signal and the second measurement signal, a power signal describing a power value of the high frequency signal routed via the channel path of the high frequency switching element. | 08-18-2011 |
20130154761 | System and Method for a Radio Frequency Switch - In accordance with an embodiment, a filter network is configured to be coupled to a first switch, a second switch, and an output port. The filter network includes a first filter coupled between the first switch and the output port, and the second filter coupled between the second switch and the output port. The first filter has a pass band having a first frequency range that includes a first frequency, and a stop band that includes a second frequency that is a distortion product of the first frequency. The second filter has a second frequency range that includes the second frequency and the stop band that includes the first frequency. The second frequency range is higher in frequency than the first frequency range. | 06-20-2013 |
20130278323 | High-Frequency Switching Circuit - A high-frequency switching circuit includes a high-frequency switching transistor, wherein a high-frequency signal-path extends via a channel-path of the high-frequency switching transistor. The high-frequency switching circuit includes a control circuit and the control circuit is configured to apply at least two different bias potentials to a substrate of the high-frequency switching transistor, depending on a control signal received by the control circuit. | 10-24-2013 |
20130307576 | System and Method for Testing an Integrated Circuit - In accordance with an embodiment, a method of testing an integrated circuit, includes receiving a supply voltage on the integrated circuit via a first input pin, providing power to circuits disposed on the integrated circuit via the first input pin, comparing the supply voltage to an internally generated voltage, generating a digital output value based on the comparing, and applying the digital output value to a pin of the integrated circuit. | 11-21-2013 |
20140015593 | RF Switch, Mobile Communication Device and Method for Switching an RF Signal - An RF switch includes a switchable RF transistor. The switchable RF transistor includes a stripe of a plurality of adjacent RF transistor fingers and at least one non-switchable dummy transistor that is arranged at an end of the stripe of the switchable RF transistor. | 01-16-2014 |
20140073271 | System and Method for Transmitting a Radio Frequency Signal Through a Speaker Coil - In accordance with an embodiment, a system has an audio amplifier configured to be coupled to a speaker coil port via a parallel resonant circuit, and a radio frequency (RF) amplifier configured to transmit a RF signal at a first RF transmission frequency. The speaker coil port is configured to be coupled to a speaker coil, and the parallel resonant circuit has a resonance frequency of about the first RF transmission frequency. | 03-13-2014 |