Abstract: A cleaner head includes a housing part having an opening opened downwardly, a vibration generating part disposed to cover the opening, and having at least one inlet passing through an inhaling force to generate a vibration force, a brush part disposed under the vibration generating part, and receiving the vibration force to vibrate, and a vibration isolating part disposed around the housing part, and separating the vibration generated by the vibration generating part from the housing part.

Abstract: A beamforming device includes a sampler configured to sample a signal reflected from a focal point and received to a transducer array; a mixer configured to separate the sampled signal into an in-phase component signal and a quadrature component signal; a low pass filter configured to perform filtering on the in-phase component signal and the quadrature component signal; a decimator configured to perform decimation on the filtered in-phase component signal and quadrature component signal; a sampling delay compensator configured to compensate a sampling time delay based on a preset time delay resolution for the decimated in-phase component signal and quadrature component signal; a phase rotator configured to compensate a phase delay based on a preset phase resolution for the in-phase component signal and the quadrature component signal for which the sampling time delay is compensated; and a delay calculator configured to calculate a time delay resolution and the phase resolution, and to apply each to the sampl

Abstract: A beamforming device includes a sampler configured to sample a signal reflected from a focal point and received to a transducer array; a mixer configured to separate the sampled signal into an in-phase component signal and a quadrature component signal; a low pass filter configured to perform filtering on the in-phase component signal and the quadrature component signal; a decimator configured to perform decimation on the filtered in-phase component signal and quadrature component signal; a sampling delay compensator configured to compensate a sampling time delay based on a preset time delay resolution for the decimated in-phase component signal and quadrature component signal; a phase rotator configured to compensate a phase delay based on a preset phase resolution for the in-phase component signal and the quadrature component signal for which the sampling time delay is compensated; and a delay calculator configured to calculate a time delay resolution and the phase resolution, and to apply each to the sampl

Abstract: An accessory for portable device includes a case which is to be mounted on the portable device, the case including a through hole extending in one direction, and a guide rail provided along both sides of the through hole, a plate including guide grooves being configured to receive the guide rail on both sides thereof, the plate being guided by the guide rail so as to be movable along an extending direction of the through hole, a connecting part rotatably fixed to the plate, a ring part pivotably fixed to the connecting portion so as to have various angles with respect to the connecting part, and at least one uneven portion including concave-convex portions which are arranged along the guide rail for receiving protrusions of the plate to fix the plate to a plurality of positions.

Abstract: An accessory for portable device includes a case which is to be mounted on the portable device, the case including a through hole extending in one direction, and a guide rail provided along both sides of the through hole, a plate including guide grooves being configured to receive the guide rail on both sides thereof, the plate being guided by the guide rail so as to be movable along an extending direction of the through hole, a connecting part rotatably fixed to the plate, a ring part pivotably fixed to the connecting portion so as to have various angles with respect to the connecting part, and at least one uneven portion including concave-convex portions which are arranged along the guide rail for receiving protrusions of the plate to fix the plate to a plurality of positions.

Abstract: A mounting member for mounting a mobile device and a mobile device accessory of being fixed to one face of the mobile device and having a ring on an object is disclosed. The mounting member includes a body having a plate shape, a ring insertion hole penetrating the body and extending along one direction of the body, the ring inserting hole being configured for the ring to be inserted downwardly thereinto, and a fixing hole formed on a lower surface portion of the body to cross the ring insertion hole, the fixing hole being configured to fix the ring inserted in the ring insertion hole and rotated to the body.

Abstract: Systems, devices, and methods for providing a ring holder stand for a portable digital device, such as a smartphone, tablet, portable media player and the like, that can be easily separated from and re-attached to the portable digital device as needed by a user, so that the ring holder stand can be removed while the portable digital device is being recharged so as to stop the chances of causing fire or thermal burn that may occur if the metal ring holder stand remains attached to the portable digital device.

Abstract: Provided is an ultrasonic imaging apparatus including: an inputter configured to receive an input of a region of interest (ROI) from a user; a beamformer configured to perform transmission/reception focusing with respect to a virtual source to be used for a synthetic aperture focusing method; a display; and a main controller configured to determine a position of the virtual source on the basis of an image quality in the received ROI and control the display to display the determined position of the virtual source.

Abstract: A mounting member for mounting a mobile device and a mobile device accessory of being fixed to one face of the mobile device and having a ring on an object, the mounting member includes a body, a slot portion being formed in a part of the body and having a receiving groove for receiving the ring and a pressing portion disposed inside the receiving groove and configured to elastically press the ring to be located in the receiving groove.

Abstract: A suction apparatus according to the present invention includes a suction plate, a fixing shaft, a supporting plate, an adhesive member, and a housing. The suction plate is configured to adhere to a suction subject surface. The fixing shaft is configured to be fixed to a central portion of the suction plate, and is configured to upwardly transport the central portion of the suction plate to be separated from the suction subject surface to form a sealed space between the suction plate and the suction subject surface in a pressure lower than an atmosphere pressure. The supporting plate has a ring shape and prepared on a periphery of the suction plate, and is combined with the suction plate. The adhesive member has a ring shape, and includes an upper surface fixed to a lower surface of the supporting plate and a lower surface configured to adhere to the suction subject surface, to prevent inflow of an air toward the sealed space.

Abstract: A mounting member for mounting a mobile device and a mobile device accessory of being fixed to one face of the mobile device and having a ring on an object, the mounting member includes a body, a slot portion being formed in a part of the body and having a receiving groove for receiving the ring and a pressing portion disposed inside the receiving groove and configured to elastically press the ring to be located in the receiving groove.

Abstract: A system and a method for transmitting and responding to an emergency signal are provided. In the system, when a user facing an emergency situation presses an emergency signal button of a mobile terminal, an emergency signal is transmitted to a security unit provided with alarm apparatuses such as flashing lights and sirens. The security unit that has received the emergency signal operates the alarm apparatuses, and simultaneously, transmits an emergency situation occurrence signal to a security center, so that a staff member located closest to an occurrence area of the emergency situation may intercept to prevent the crime.

Abstract: A tuning device for a stringed musical instrument comprising a socket to receive a peg of the instrument, a shaft rotatably connected to the socket, a motor to induce rotation of the shaft, a first gear to reduce the shaft rotation and increase torque from the motor, the first gear being engaged to the motor, a second gear to exponentially reduce the reduced shaft rotation, the second gear being engaged between the shaft and the first gear, a cutter to trim a string of the instrument, and a housing to cover and protect the shaft, the motor, and the gears, where the cutter is attached to the housing opposing the socket.