Abstract: A hair dryer including a main body; a fan inside the main body to generate a flow of air; and a nozzle connected to the main body so that the air flows into the nozzle. The nozzle includes a nozzle body having an inner space, a nozzle partition wall inside the nozzle body dividing the inner space into first and second nozzle passages, a plurality of first nozzle holes formed in the nozzle body to communicate with the first nozzle passage, and a plurality of second nozzle holes formed in the nozzle body to communicate with the second nozzle passage. The nozzle is configured so that air flowing into the first nozzle passage is discharged through the first nozzle holes in a first direction, and air flowing into the second nozzle passage is discharged through the second nozzle holes in a second direction that is different from the first direction.

Abstract: An RF multiplexing switching circuit for an RF front end (e.g., for a mobile communications device transmitting/receiving in the RF region) includes a set of RF inputs and a set of RF outputs outputting to RF filters, the RF inputs and outputs connected by signal paths. The switching circuit includes series switches for creating conducting signal paths for transmitting/receiving RF signals between the RF inputs and outputs, and a set of common shared shunt switches (e.g., for M RF inputs and N RF outputs, M+X shunt switches, where X<N) collectively capable (e.g., in conjunction with the series switches) of pulling to ground potential any RF input and output not on the conducting signal path. The RF switching circuit may be implemented as a band select switch (e.g., where the inputs connect to power amplifiers) or an antenna switch (e.g., where the inputs connect to device antennas).

Abstract: A filter device configured to directly connect to a differential power amplifier of a transmit chain circuit. The filter device may include a transformer and a filter configured as a half lattice equivalent topology and having a single-ended output. The filter may be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The filter includes a first branch having a first impedance network of one or more first impedance elements and a second branch having a second impedance network of one or more second impedance elements. The single-ended output of the filter device may connect to an antenna switch that is in turn connected to an antenna.

Abstract: A filter device configured to directly connect to a differential power amplifier of a transmit chain circuit. The filter device may include a transformer and a filter configured as a half lattice equivalent topology and having a single-ended output. The filter may be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The filter includes a first branch having a first impedance network of one or more first impedance elements and a second branch having a second impedance network of one or more second impedance elements. The single-ended output of the filter device may connect to an antenna switch that is in turn connected to an antenna.

Abstract: The present invention relates to a water dosimetry device using X-ray induced ultrasonic waves, in which a medical X-ray linear accelerator and an ultrasonic transducer are combined to construct a medical X-ray linear accelerator-based ultrasound imaging device, so that a radiation-absorbed dose in water when X-rays irradiate the water is measured in real time.

Abstract: A device combines filter circuits to be connected to an antenna, enabling carrier aggregation for wireless communications over multiple RF frequency bands in different operational environments. The device includes first, second and third filter circuits having first, second and third matching networks and one or more first, second and third band pass filters with corresponding passbands, respectively. The device further includes multiple individual matching networks not dedicated to any of the first, second or third filter circuits, and a multi-state switch configured to provide different filter circuit combinations by selectively connecting at least two of the first, second and third filter circuits, respectively, and at least one individual matching network of the multiple matching networks. Each filter circuit combination includes a combined matching network having at least two of the first, second and third matching networks and the at least one individual matching network.

Abstract: A device combines filter circuits to be connected to an antenna, enabling carrier aggregation for wireless communications over multiple RF frequency bands in different operational environments. The device includes first, second and third filter circuits having first, second and third matching networks and one or more first, second and third band pass filters with corresponding passbands, respectively. The device further includes multiple individual matching networks not dedicated to any of the first, second or third filter circuits, and a multi-state switch configured to provide different filter circuit combinations by selectively connecting at least two of the first, second and third filter circuits, respectively, and at least one individual matching network of the multiple matching networks. Each filter circuit combination includes a combined matching network having at least two of the first, second and third matching networks and the at least one individual matching network.

Abstract: Provided is a non-invasive imaging apparatus of acquiring an image of a region of interest of an object, including: a laser supplying a laser beam; a fiber bundle transmitting the laser beam to the region of interest of the object; a transducer detecting an ultrasound signal output from the region of interest of the object corresponding to the laser beam supplied from the fiber bundle and generating and outputting an ultrasound detection signal; and an ultrasound device generating and outputting a photoacoustic image by using the ultrasound detection signal output from the transducer, wherein the region of interest of the object is a gastrointestinal track of an animal, wherein the transducer detects the ultrasound signal of the gastrointestinal track of the animal into which a contrast agent is injected, and wherein the photoacoustic image is an image of the region of interest into which the contrast agent is injected.

Abstract: A duplexer includes a transmit filter and an integrated receive filter configured to filter a receive signal from an antenna. The integrated receive filter includes a receive filter portion having multiple acoustic resonator filter elements and a matched balun configured to convert a single-ended input signal, received at a single-ended input of the matched balun from a single-ended output of the receive filter portion, to a differential output signal. The matched balun being is located in place of a phase matching inductor of the receive filter portion, eliminating need for the phase matching inductor of the receive filter portion and a phase matching inductor of the matched balun. Impedance at the single-ended input of the matched balun includes a complex conjugate of impedance at the single-ended output of the receive filter portion.

Abstract: A duplexer includes a transmit filter and an integrated receive filter configured to filter a receive signal from an antenna. The integrated receive filter includes a receive filter portion having multiple acoustic resonator filter elements and a matched balun configured to convert a single-ended input signal, received at a single-ended input of the matched balun from a single-ended output of the receive filter portion, to a differential output signal. The matched balun being is located in place of a phase matching inductor of the receive filter portion, eliminating need for the phase matching inductor of the receive filter portion and a phase matching inductor of the matched balun. Impedance at the single-ended input of the matched balun includes a complex conjugate of impedance at the single-ended output of the receive filter portion.