Abstract: A front-end circuit with a tunable filter is disclosed. In an embodiment, the front end circuit includes a first signal path connected to an antenna connection, a first filter arranged in the first signal path, wherein the first filter is tunable within a first frequency range, and an extra signal path and a first fixed filter arranged therein, wherein the first fixed filter has a passband for an extra frequency band, wherein the first fixed filter is not tunable, and wherein the extra frequency band is arranged outside or inside the first frequency range. The front end circuit further includes a narrowband antenna tuner configured to be set to a respective tunable frequency range, wherein the narrowband antenna tuner is arranged between the first filter, the first fixed filter and the antenna connection in the first and second signal paths.

Abstract: An RF antenna switch and a method for operating the antenna switch are disclosed. In an embodiment the antenna switch includes an antenna terminal and a switch including a number of n I/O terminals and n?x transceiver units, wherein each transceiver unit is configured to operate in a frequency band of a respective communication system, and wherein n and x are integers and n, x?1 and n>x. The switch is further adapted to independently connect a plurality of the I/O terminals to the antenna terminal to provide a respective signal paths from the antenna terminal to the I/O terminals, wherein a first filter is connected between a first I/O terminal and a common input node of a first transceiver unit, the first filter being adapted to filter out an unwanted harmonic mode produced by a transmitter of the first transceiver unit.

Abstract: The present invention relates to a BAW filter operating with bulk acoustic waves, which has a multilayer construction, wherein functional layers of a BAW resonator operating with bulk acoustic waves are realized by the multilayer construction, and wherein an interconnection of passive components is furthermore formed by the multilayer construction, said interconnection forming a balun, wherein the balun has at least one inductance (L1, L2, L3) and at least one capacitance (C1, C2) which are formed from structured functional layers of the BAW resonator. Furthermore, the invention relates to a method for producing the BAW filter.

Abstract: A power amplifier circuit comprising a transistor for receiving a signal to be amplified at an input and for outputting an amplified signal at an output; a modulated power supply connected to the transistor output; and a resistive element connected at the transistor output such that a low impedance is maintained at the transistor output across a range of operational frequencies.

Abstract: This disclosure provides systems, methods, and apparatus for generating images on a display. A multi-primary display can include control logic that converts input image data into the multi-primary color space employed by the display by mapping the input pixel values into the XYZ color space according to a gamut mapping function and then decomposing the XYZ tristimulus values into color subfields associated with the display's primary colors. For example, such a process can be used to covert image frames encoded in an RGB color space into a RGBW color space. In some implementations, the control logic can adapt the gamut mapping and/or the decomposition processes based on a saturation level of the image being processed.

Abstract: A MEMS component includes, on a substrate, component structures, contact areas connected to the component structures, metallic column structures seated on the contact areas, and metallic frame structures surrounding the component structures. A cured resist layer is seated on frame structure and column structures such that a cavity is enclosed between substrate, frame structure and resist layer. A structured metallization is provided directly on the resist layer or on a carrier layer seated on the resist layer. The structured metallization includes at least external contacts of the component and being electrically conductively connected both to metallic structures and to the contact areas of the component structures.

Abstract: The invention relates to a cased electrical component comprising a carrier substrate (10), a spring device (20), which is arranged on the carrier substrate (10), a chip (30), which on a first side (31) of the chip is coupled to the spring device (20), and a cover element (100), which is arranged on the carrier substrate (10). The cover element (100) is arranged over the chip (20) such that the cover element (100) is in contact with the chip (30) at least on a second side (32) of the chip, which is different from the first side. The component has a low space requirement and is highly sealed with respect to influences from the surroundings.

Abstract: A method of characterizing an envelope tracking amplification stage, the method comprising: generating an input test waveform which is representative of an input waveform under normal operating conditions of the amplification stage; applying a respective one of a plurality of different shaping functions, each comprising a non-linear transfer function, to the input signal envelope in each of a plurality of test periods during the period in which the input test waveform is applied as the input signal to generate the input to the envelope tracking modulated supply voltage; measuring parameters of the amplification stage during the period in which the input test waveform is applied in order to allow determination of the gain, phase and efficiency characteristics of the amplifier; and for each of the gain, phase and efficiency characteristics, generating a three dimensional plot of the characteristic with respect to input power and supply voltage applied to the amplifier.

Abstract: A capacitor having improved linear properties is provided. The capacitor is compatible with manufacturing processes of components which function using BAW. The capacitor comprises a first and a second electrode (E1, E2) in a first electrically conductive layer and a third electrode (E3) in a second electric layer. A dielectric layer (DL) is arranged between the electrically conductive layers. The first electrode (E1) and the second electrode (E2) are the terminal electrodes of the capacitor.

Abstract: A BAW component, a lamination for a BAW component, and a method for manufacturing a BAW component are provided. A lamination for a BAW component includes a first layer with a first piezoelectric material and a second layer with a second piezoelectric material that is different than the first piezoelectric material. The first and the second piezoelectric material can be Sc doped AlN and AlN, respectively.

Abstract: This disclosure provides systems, methods and apparatus for providing illumination. In one aspect, an etendue preserving optical coupling system configured to: receive incident light through an input aperture; and emit the incident light through an output aperture having an area smaller than an area of the input aperture is provided. The light output from the optical coupling system is coupled into a light receiving system including material having substantially the same refractive index as the refractive index of the material of the optical coupling system. The light receiving system includes a light guide configured to internally propagate the redirected light and to release light to illuminate the ambient environment.

Abstract: This disclosure provides systems, methods and apparatus for controlling the states of a light modulator used in displays. A display apparatus includes pixel circuits coupled to the light modulators. Each pixel circuit can include an output node, a data capacitor, a charge transistor for charging the output node and a discharge transistor for selectively conducting a current between the output node and an update interconnect providing an update voltage. The display apparatus can include a controller for testing the pixel circuits to determine two or more update voltage levels, each update voltage level causing the discharge transistor to conduct current. The controller also can be configured to determine a logical high voltage level to be stored in the data capacitor based on the plurality of update voltage levels.

Abstract: In one aspect, an illumination device with integrated touch sensor capability includes a light guide having a metalized light-turning feature and an electrode system for sensing changes to the capacitance between electrodes in the electrode system induced by the proximity of an electrically conductive body, such as a human finger. The metalized light-turning features may be electrically connected to and/or part of the electrode system.

Abstract: The invention relates to a class AB amplifier for receiving an input current and generating an amplified output current and having first and second output transistors connected to provide the output current, wherein if the input current is less than a threshold the first output transistor is enabled and the second output transistor is disabled, and if the input current exceeds a threshold the second output transistor is enabled.

Abstract: This disclosure provides systems, methods, apparatus, and computer readable media for generating images on a display using a dithering process that takes into account an uneven spacing of available gray scale values in at least one color subfield used to generate the images. The dithering process includes generating a set of initial color subfields, a set of quantized color subfields, and a set of final color subfields, which are then output on the display. The quantized color subfields an the final color subfields are derived based at least in part on the uneven spacing of gray scale values in at least one of the final color subfields.

Abstract: Systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high bit-depth images using spatial vector screening and/or temporal dithering on display devices including display elements that have multiple primary colors. The systems, methods and apparatus described herein are configured to assign one of the primary colors to a display element of the display device that corresponds to the image pixel based on a rank order and a partition index of an associated screen element of a stochastic screen associated with the display device or a portion thereof.

Abstract: The invention relates to a technique for controlling in an envelope tracking amplification stage, comprising: determining a representation of the output signal of the amplifier; determining a representation of the input signal of the amplifier; adjusting the determined representation of the input signal according to a target characteristic of the amplifier; comparing the adjusted input and determined representation of the output; and generating a control signal in dependence on the comparison.

Abstract: Embodiments include systems and methods of allocating application functions to motion-correlated devices. A processor may determine whether a first motion of a first mobile device and a second motion of a second mobile device are correlated. The processor may allocate a first application function to the first mobile device and a second application function to the second mobile device in response to determining that the first motion and the second motion are correlated.

Abstract: This disclosure provides thin film transistors (TFTs) including p-n hetero-junction structures. A p-n hetero-junction structure may include a junction between a narrow bandgap material and a wide bandgap material. The narrow bandgap material, which may be an oxide, nitride, selenide, or sulfide, is the active channel material of the TFT and may provide relatively high carrier mobility. The hetero-junction structures facilitate band-to-band tunneling and suppression of TFT off-currents. In various implementations, the TFTs may be formed on flexible substrates and have low temperature processing capabilities.

Abstract: There is described a method of generating a power supply tracking a reference signal, comprising the steps of: filtering the reference signal; generating a first voltage in dependence on the filtered reference signal; generating a second voltage in dependence on the reference signal; and combining the first and second voltages to provide a power supply voltage.