摘要:
Disclosed is an amplitude-scaling resilient audio watermarking apparatus and method. An encoding apparatus includes: a polyphase filterbank for dividing an audio signal into a plurality of subbands; a psychoacoustic module for applying a psychoacoustic model to the audio signal to provide a signal-to-mask ratio; a watermark encoder for evaluating an encoding parameter from the subbands according to the signal-to-mask ratio and embedding the encoding parameter and a watermark into subbands corresponding to the middle frequency; and a synthesis filterbank for synthesizing the subband signals to output a watermarked audio signal. A decoding apparatus includes: a polyphase filterbank for dividing a received audio signal into the predetermined number of subbands; an EM estimator for estimating an scale factor from an encoding parameter contained in the audio signal and a watermarked subband according to an EM algorithm, and generating the quantizer step size Δd of a decoder according to the amplitude-scaling; a watermark decoder for extracting a watermark from a subband corresponding to the middle frequency considering the quantizer step size; and an integrated determiner for integrating outputs of the watermark decoder to determine a watermark.
摘要:
Disclosed is a halogen-free flame retardant thermoplastic polyurethane composite resin composition. The disclosed flame retardant thermoplastic polyurethane composite resin composition is capable of improving flame retardancy and flaming-drip of a thermoplastic polyurethane resin through desirable formation of char during combustion, which uses a phosphinate, a diphosphinate and/or a polymer thereof, dipentaerythritol, talc, a melamine derivative, etc., instead of a halogen-based flame retardant, as a flame retardant.
摘要:
Disclosed is a gaming table managing system and method thereof for determining the performance of dealers and also estimating the revenue for each gaming table. The system employs a wireless communications network and includes: an identification card; a table module having a plurality of service call buttons, a chip sensing mechanism and a card reader, for generating service call data, dealer-associated data and chip-associated data; a host computer for receiving the dealer-associated data and the chip-associated data and determining the performance of the dealer and estimating the revenue of the gaming facility, using received data; and a service call processing unit for receiving the service call data and displaying same on a screen.
摘要:
The present invention relates to an electric power steering apparatus. According to the present invention, it is possible to provide an electric power steering apparatus configured to be capable of being assembled in a state in which the tension of a belt is correctly tuned without using a separate process of measuring the tension of the belt, to substantially reduce the number of steps at the time of assembling a motor housing and a rack housing and hence the manufacturing costs, and to reduce vibration and noise to provide a pleasant steering feeling to a driver.
摘要:
A transmitter and/or receiver for performing frequency domain equalization is provided. A transmitter includes a pilot position determination unit for determining positions for inserting pilots in a frequency domain based on frequency spectrums of data, and a pilot insertion unit for inserting the pilots between the frequency spectrums of the data according to the determined positions for inserting the pilots.
摘要:
The present disclosure relates to a method of manufacturing a stylus pen configured to select one of plural pieces of content installed in advance in a communication terminal. Examples of the method comprise preparing a protective cap of a conductive fiber material by sequentially stacking nickel, copper and nickel on both sides of a polyester fiber by deposition coating, placing the protective cap on a mold, applying a bonding agent to an internal surface of the protective cap, and injecting a non-conductive liquid onto the internal upper portion of the protective cap.
摘要:
A broadcast receiver and method of providing a preferred channel thereof are disclosed. The present invention includes receiving a program of the preferred channel (52) set by a user among a plurality of broadcast channels, transforming an image of the received program of the preferred channel into a reduced image (54) and storing the reduced image per the preferred channel. Accordingly, when a turn-on mode of the broadcast receiver is switched to a turn-off mode (56) of the broadcast receiver, when a turn-off mode (56) of the broadcast receiver is switched to a turn-on mode of the broadcast receiver, or when a display of a preferred channel is requested in a turned-on mode, a per preferred channel reduced image is displayed as OSD (60) on a currently viewed image. So, a user is facilitated to recognize and select a program received on the preferred channel without blocking the currently viewed image.
摘要:
A method and device for determining the presence or absence of a disk and/or a disk size without using FG signals, are provided. The method includes placing a pickup at a first zone on the optical recording medium, the first zone located between an outer radius of a first recording medium type and an outer radius of a second recording medium type, where the outer radius of the second recording medium type is larger than the outer radius of the first recording medium type; detecting a reflected signal based on a returned beam from the first zone of the optical recording medium; and determining at least one of a size and an absence of the optical recording medium based on the detected reflected signal. Therefore, an FG sensor that is provided in a general disk device can be eliminated, thereby reducing the size and cost of a disk device.
摘要:
The present invention relates to an adaptor for a slit lamp microscope. According to one embodiment of the present invention, the invention provides the advantages of: facilitating the maintenance/repair of a slit lamp microscope since a camera member used for the slit lamp microscope is simply attached or detached; simply and easily inspecting and photographing a subject's eye; and obtaining a high-resolution video or image for the subject's eye at low costs.
摘要:
Provided is an IV flow controller which adjusts the amount of an IV material supplied to a patient through an IV tube and to which a flushing feature is added. The IV controller according to the present invention includes: a first body unit, a second body unit, a fixed roller, and a driving roller. The fixed roller is fixedly and rotatably arranged, and has a first gear unit and a second gear unit. The driving roller is accommodated such that a portion thereof is exposed, and the driving roller is moved along the lengthwise direction while controlling the flow of the IV when the exposed portion is turned. Also, in the flushing position, the driving roller rotates in cooperation with the first gear unit of the fixed roller across the IV tube so as to flush the latter. The second gear unit of the fixed roller may be configured so as to have a ratchet gear, and the second body unit has a pawl which meshes with the ratchet gear of the fixed roller in order to prevent reverse rotation. According to the present invention, flushing in the reverse direction is prevented by the ratchet gear, and thus medical accidents caused by reverse flushing can be prevented.