Abstract: A display may include an array of pixels such as light-emitting diode pixels. The pixels may include multiple circuitry decks that each include one or more circuit components such as transistors, capacitors, and/or resistors. The circuitry decks may be vertically stacked. Each circuitry deck may include a planarization layer formed from a siloxane material that conforms to underlying components and provides a planar upper surface. In this way, circuitry components may be vertically stacked to mitigate the size of each pixel footprint. The circuitry components may include capacitors that include both a high-k dielectric layer and a low-k dielectric layer. The display pixel may include a via with a width of less than 1 micron.

Abstract: In a method of manufacturing a semiconductor device, an underlying structure is formed over a substrate. A film is formed over the underlying structure. Surface topography of the film is measured and the surface topography is stored as topography data. A local etching is performed by using directional etching and scanning the substrate so that an entire surface of the film is subjected to the directional etching. A plasma beam intensity of the directional etching is adjusted according to the topography data.

Abstract: A scalable in-vehicle video system and a signal control apparatus are provided. The signal control apparatus of the scalable in-vehicle video system can be a standalone device that is used to connect with various peripheral devices for transmitting signals. The signal control apparatus can implement an audiovisual hub device, and can be disposed in a vehicle. The signal control apparatus includes a control unit, multiple interfaces, at least one communication port, and multiple wireless or wired connection ports. The signal control apparatus connects with a sensor and an external circuit via the multiple interfaces, connects with an external system via the communication port, and connects with multiple video recorders via the connection ports. Audiovisual files generated by the video recorders can be stored to a memory module of the signal control apparatus, or can be transmitted to the external system through the signal control apparatus.

Abstract: A holding device for a top-opening substrate container includes a holding assembly for pushing a substrate actuator disposed at a substrate to operate. The holding assembly includes a holding body and a pushing actuator. The pushing actuator includes a first guiding sloped surface for pressing against a second guiding sloped surface of an inner surface of a container door structure. The first guiding sloped surface causing corresponding pushing and displacement between the first guiding sloped surface and the second guiding sloped surface according to a supporting force of the container door structure. A pushing section is connected to the first guiding sloped surface, and capable of correspondingly pushing the substrate actuator to operate according to a level of the pushing and displacement of the first guiding sloped surface, such that the substrate actuator displaces substrates and stacks the substrates with another in layers.

Abstract: A wireless device comprises a transceiving circuit, configured to receive a plurality of beam performance parameters corresponding to a plurality beams; a storage circuit, configured to store a table, wherein corresponding relationships between the plurality beams and the plurality of beam performance parameters are tabulated in the table; and a processing circuit, configured to perform the following steps: selecting a first beam according to the table; determining whether a first beam performance value corresponding to the first beam is less than a threshold; and selecting a second beam according to the table when the first beam performance value is less than the threshold.

Abstract: A wireless device comprises a transceiving circuit, configured to receive a plurality of beam performance parameters corresponding to a plurality beams; a storage circuit, configured to store a table, wherein corresponding relationships between the plurality beams and the plurality of beam performance parameters are tabulated in the table; and a processing circuit, configured to perform the following steps: selecting a first beam according to the table; determining whether a first beam performance value corresponding to the first beam is less than a threshold; and selecting a second beam according to the table when the first beam performance value is less than the threshold.

Abstract: An antenna control method for controlling an antenna device to switch between a plurality of beams. The antenna control method includes the steps of: (a) using the beams for communication one after another, and performing a scanning process on each of the beams, so as to retrieve a communication quality parameter; (b) comparing all of the communication quality parameters with each other, and selecting one of the beams as a main communication beam, wherein the selected beam has the best communication quality parameter; (c) performing a saturation determination process on the main communication beam; and (d) when the main communication beam causes saturation of a power amplifier, switching to another beam which is adjacent to the main communication beam as a substitute communication beam.

Abstract: An antenna control method for controlling an antenna device to switch between a plurality of beams. The antenna control method includes the steps of: (a) using the beams for communication one after another, and performing a scanning process on each of the beams, so as to retrieve a communication quality parameter; (b) comparing all of the communication quality parameters with each other, and selecting one of the beams as a main communication beam, wherein the selected beam has the best communication quality parameter; (c) performing a saturation determination process on the main communication beam; and (d) when the main communication beam causes saturation of a power amplifier, switching to another beam which is adjacent to the main communication beam as a substitute communication beam.

Abstract: The present invention provides a CDMA RAKE receiver that computes a data detection using Fast Fourier Transform (FFT) matched filters. Signals received are processed in frequency domain by the RAKE receiver. The RAKE receiver includes a pilot signal spreading code matched filter, a data signal spreading code matched filter and a channel matched filter. The pilot signal spreading code matched filter removes a spreading code of the pilot signal. The data signal spreading code matched filter removes a multiple access spreading code of the data signal. A channel matched filter estimates the channel frequency response and combine the received data signal from different paths before a decision is made. For increasing the CDMA system capacity, the RAKE receiver uses a interference cancellation method. A downlink receiver at a mobile station estimates the interference of a pilot signal and subtracts the pilot interference from the received signal before data detection.

Abstract: A synchronization system and method for obtaining frame, carrier, and sampling synchronization of an input OFDM modulated digital signal having a pseudoperiodic second symbol. The system includes an apparatus for obtaining frame synchronization, and the apparatus includes an envelope detector to detect the first symbol of the input signal, and a differentiator connected to the envelope detector to detect the second symbol. The differentiator includes a first filter having a transfer function H(z)=(1+z.sup.-1) and a second filter having a transfer function H.sub.p (z)=(1-z.sup.-n/2 +z.sup.-n -z.sup.-3n/2), where n equals to a number of samples in the input signal. Synchronization of the carrier frequency offset is obtained by first obtaining the fractional carrier frequency offset, and then obtaining the integral carrier frequency offset through a matched filtering process. Sampling frequency synchronization is obtained through the matched filtering process for determining integral carrier frequency offset.

Abstract: A synchronization system for an input signal having a plurality of OFDM symbols, each symbol having at least one guard interval, includes a correlation device for providing a product of the input signal with a complex conjugate of the input signal delayed for a predetermined period, an arithmetic device for obtaining an argument value of the product, and a detection device for detecting a transition in phase values of an output of the arithmetic device, wherein the transition occurring when the phase value in one portion of the symbol duration is substantially smaller than another portion of the symbol duration. The system additionally includes a power estimator for detecting an OFDM symbol frame of the input signal with reference to a predetermined threshold, and a device for estimating fractional carrier frequency offset.

Abstract: A demodulating system for estimating frequency offset and sampling time error by a Fast Fourier Transform operation, which receives a modulated signal sent from a GMSK (Gaussian Low-Pass Filtered Minimum Shift Keying) or a MSK (Minimum Shift Keying) transmitter and demodulates the signal. The demodulating system uses a Fast Fourier Transform converter to obtain frequency offset and sampling time error by applying to it an initial demodulated result generated from a discriminator or a phase differentiator.

Abstract: A one-bit differential detector for a GMSK signal operates independently of an offset frequency. In particular, a decision signal used by a decision circuit to distinguish between logic "0" and logic "1" is always equal to sin[.DELTA..phi.(T)]. The inventive detector has an improved bit error rate performance in comparison to the prior art.