Abstract: A compact microstrip to waveguide dual coupler transition includes a multilayer printed circuit board configured with a rectangular region on an upper surface of the multilayer printed circuit board, wherein the rectangular region has a pair of long edges and a pair of short edges; a transition probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the transition probe extends into the rectangular region through a long edge of the rectangular region, and another terminal of the transition probe is electrically connected to a power amplifier; a first coupler probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the first coupler probe extends into the rectangular region; and a second coupler probe configured on the upper surface of the multilayer printed circuit board, wherein a terminal of the second coupler probe extends into the rectangular region.

Abstract: Embodiments of the invention provide a liquid crystal panel and a display device. The liquid crystal panel includes an array substrate, an opposite substrate and a liquid crystal layer provided between the array substrate and the opposite substrate. Spacers are arranged on the opposite substrate, pad are arranged on the array substrate, and each of the spacers corresponds to a plurality of pads and has different contact areas with the plurality of pads.

Abstract: A method of providing multiple voltage references to a radio-frequency device using a single analog line includes the steps of setting the analog line voltage level to be a first reference voltage signal; instructing a first voltage reference device to memorize the first reference voltage signal by sending a first digital control signal to a digital line; providing the first reference voltage signal to the RF device via the first voltage reference device; re-setting the analog line voltage level to be a second reference voltage signal; instructing a second voltage reference device to memorize the second reference voltage signal by sending a second digital control signal to the digital line, the second digital control signal being different from the first digital control signal; and providing the second reference voltage signal to the RF device via the second voltage reference device.

Abstract: A transceiver used in a radio unit for wireless communication, comprises: a circuitry board including a transmitter and a receiver; a first connector on a first side of the circuitry board, wherein the first connector is configured to be connected to an interface card; a second connector on a second side of the circuitry board, wherein the second side is opposite the first side and the second connector is configured to be connected to a digital card via a flexible circuit; and a pair of transmit port and receive port located on the second side of the circuitry board, wherein the transmit port is coupled to the transmitter and the receive port coupled to the receiver, respectively. When the transceiver is part of a split-mount radio unit (SRU), the first connector is connected to the interface card and the second connector is not in use. When the transceiver is part of an all-outdoor radio unit (AOU), the second connector is connected to the digital card and the first connector is not in use.

Abstract: An Outdoor Coupler Unit (OCU) is described to combine or split, transmit and receive microwave signals from multiple Outdoor Units (ODUs). The OCU has low signal loss by utilizing circulators. The OCU concept allows for system expansion beyond two ODUs if desired, and can be placed outdoors in close proximity to an antenna or antennas.

Abstract: A polarization three-dimensional display and method comprise a liquid crystal panel, with an array substrate and a color filter substrate opposing each other, the color filter substrate including a plurality of black matrix strips disposed on a side of it facing the array substrate; and a liquid crystal layer; a phase difference structure, located on a light-exiting side of the panel, a plurality of patterned phase difference diaphragms are arranged on the phase difference structure; a plurality of light-shielding strips, disposed on a side of the array substrate away from the liquid crystal layer, projections of the plurality of light-shielding strips on the phase difference structure cover boundary lines of the patterned phase difference diaphragms on the phase difference structure, and projections of the plurality of black matrix strips on the phase difference structure cover boundary lines of the patterned phase difference diaphragms on the phase difference structure.

Abstract: System and method for implementing a link aggregation system, a protection system, and an XPIC application for an all outdoor radios system using a wireless channel operating at a license-free 60 GHz band are provided. The license-free 60 GHz band offers a wide frequency bandwidth that can support a high speed data rate up to 10 Gbps in full duplex mode, frequency reuse, and high security due to its fast oxygen absorption at 60 GHz. As such, a wireless channel operating at the license-free 60 GHz band may be used for a link aggregation system to support wireless local area network (LAN) connections with the speed up to 7 Gbps. In addition, a wireless connection operating at the license-free 60 GHz band may be used to support both XPIC application and protection system for all outdoor radios to achieve a transmission speed of up to 10 Gbps in a full duplex mode.

Abstract: A method is provided for synchronizing a first radio unit with a second radio unit associated with an all outdoor radios system, the method including: receiving, at the first radio unit and the second radio unit, respectively, a communication signal from a common communication source; receiving, at the first radio unit and the second radio unit, respectively, a reference signal from a common reference source; synchronizing the communication signal at each of the first radio unit and the second radio unit with the reference signal such that the each of the first radio unit and the second radio unit generates an output signal having substantially the same frequency and substantially the same phase; and transmitting the output signal from each of the first radio unit and the second radio unit to a remote receiver through an antenna.

Abstract: A method for background control through voice includes: saving a voiceprint feature of an owner of a mobile terminal and establishing a voice base, where the voice base contains a plurality of standard voice instructions each configured for controlling a corresponding background task and having the voiceprint feature of the owner; monitoring a sound of a surrounding environment of the mobile terminal in real time; extracting a voiceprint feature of the sound; judging whether a person making the sound is the owner of the mobile terminal according to the voiceprint feature of the sound and the voiceprint feature of the owner in the voice base; if yes, further judging whether the sound contains the standard voice instructions in the voice base; and if yes, controlling corresponding background tasks according to the standard voice instructions. A mobile terminal and a non-transitory computer-readable storage medium are also provided.

Abstract: Systems and methods for combining signals from multiple active wireless transmitters are discussed herein. An exemplary system comprises a radio enclosure, a first transmitting RFU, a second transmitting RFU, and a combiner. The first transmitting RFU may be configured to receive a signal, upconvert the signal, compare a phase of the upconverted signal to a predetermined phase value, and adjust the phase of the signal based on the comparison to provide a first phase-adjusted upconverted signal. The second transmitting RFU may be configured to receive the signal, upconvert the signal, compare a phase of the upconverted signal to the predetermined phase value, and adjust the phase of the signal based on the comparison to provide a second phase-adjusted upconverted signal. The coupler may be configured to combine the first and second phase-adjusted upconverted signals to create an output signal and provide the output signal to an antenna for transmission.

Abstract: Various embodiments are directed toward low cost passive waveguide components. For example, various embodiments relate to passive waveguide components created busing a low cost fabrication technology. In some embodiments, a three-dimensional (3D) printing process is used to create a design mold and a non-conductive structure of the waveguide is formed using a plastic injection molding process. A conductive layer may be formed over the non-conductive structure such that the conductive layer creates an electrical feature of the passive waveguide component.

Abstract: A polarization-type three-dimensional display device and a manufacturing method thereof are provided.

Abstract: Provided is a resistive random access memory including a first electrode layer, a second electrode layer, and a variable resistance layer disposed between the first electrode layer and the second electrode layer, wherein the second electrode layer includes a first sublayer, a second sublayer, and a conductive metal oxynitride layer disposed between the first sublayer and the second sublayer.

Abstract: Provided is a resistive random access memory including a first electrode layer, a second electrode layer, and a variable resistance layer disposed between the first electrode layer and the second electrode layer, wherein the second electrode layer includes a first sublayer, a second sublayer, and a conductive metal oxynitride layer disposed between the first sublayer and the second sublayer.

Abstract: The invention provides a non-volatile memory device and methods for fabricating the same. The non-volatile memory device includes a non-volatile memory cell including a first transistor and a second transistor disposed on a substrate. The first and second transistors commonly use a first source region. A first gate of the first transistor and a second gate of the second transistor are different portions of a word line. First and second resistive switching elements are coupled to a first drain region of the first transistor and a second drain region of the second transistor. A first source line is coupled to the source region. First and second bit lines are coupled to the first and second resistive switching elements. The first source line, the first and second bit lines belong to a metal layer and are parallel to each other.

Abstract: Embodiments of the invention provide a liquid crystal panel and a display device. The liquid crystal panel includes an array substrate, an opposite substrate and a liquid crystal layer provided between the array substrate and the opposite substrate. Spacers are arranged on the opposite substrate, pad are arranged on the array substrate, and each of the spacers corresponds to a plurality of pads and has different contact areas with the plurality of pads.

Abstract: Various embodiments provide for systems and methods for increased linear output power of a transmitter. An exemplary wireless communications system for transmitting an input signal comprises a predistorter module, a GaN power amplifier, a coupler, and an antenna. The predistorter module is configured to detect existing distortion by comparing the input signal to a feedback signal and generate a correction signal. The predistorter may adaptively adjust its operation to minimize the existing distortion due to GaN power amplifier nonlinear characteristics. The result is that the GaN power amplifier may send a power signal of improved linearity to the antenna. The coupler is configured to sample the amplified signal from the GaN power amplifier to generate the feedback signal. The antenna is configured to transmit the amplified signal.

Abstract: Various embodiments provide for systems and methods for wireless communications that implement transmitter protection schemes using spatial combining. The protection scheme implemented by some embodiments provides for a number of benefits, including without limitation: hitless protection; constant power monitoring for each wireless channel being utilized; extra gain to wireless signals transmitted; beam steering, beam hopping, and beam alignment capabilities; and varying levels of transmission path protection (e.g., 1+1 protection, or 1+N protection). Additionally, the features of some embodiments may be applied to a variety of wireless communications systems including, for example, microwave wireless systems, cellular phone systems and WiFi systems.

Abstract: The disclosure provides a method for fabricating a resistive random-access memory, including: providing a substrate; forming an inter-layer dielectric layer over the substrate; forming a stop layer over the inter-layer dielectric layer; forming an opening through the stop layer and the inter-layer dielectric layer; forming a bottom electrode in the opening, wherein the bottom electrode is coplanar with the stop layer; depositing a dielectric layer over the bottom electrode and the stop layer; depositing a top electrode material over the dielectric layer; and patterning the top electrode material and the dielectric layer to define a top electrode and an inter-electrode dielectric layer under the top electrode, wherein the top electrode has a second surface opposite to a first surface of the bottom electrode, arid the second surface has a greater area than the first surface.

Abstract: Systems and methods for combining signals from multiple active wireless receivers are discussed herein. An exemplary system comprises a first downconverter, a phase comparator, a phase adjuster, and a second downconverter. The first downconverter may be configured to downconvert a received signal from a first antenna to an intermediate frequency to create an intermediate frequency signal. The phase comparator may be configured to mix the received signal and a downconverted signal to create a mixed signal, compare a phase of the mixed signal to a predetermined phase, and generate a phase control signal based on the comparison, the downconverted signal being associated with the received signal from the first antenna. The phase adjuster may be configured to alter the phase of the intermediate frequency signal based on the phase control signal. The second downconverter may be configured to downconvert the phase-shifted intermediate frequency signal to create an output signal.