Abstract:
A wavelength-division-multiplexed light source for transmitting broadband light through a fiber and receiving an optical signal through the fiber is disclosed. The wavelength-division-multiplexed light source includes: a light source for outputting broadband light; and a coupler for outputting the broadband light, which has been input from the light source, to the fiber through cross coupling, and outputting an optical signal, which has been input from the fiber, through bar coupling, based on a predetermined cross coupling ratio, wherein the cross coupling ratio of the coupler is adjusted depending on a power of the optical signal.
Abstract:
Disclosed is a method for predicting the spectral information of voice signals, including inputting the voice signals, performing morphological operations with the waveform image of the voice signals, extracting harmonic peaks as a result of the morphological operations, and predicting the spectral envelope information of the voice signals by interpolating the harmonic peaks.
Abstract:
A terminal with a keypad enables a user to input an alphabet character through the keypad at high speed without modification of the keypad. The terminal comprises receiving a first input character in an alphabet input mode; waiting for a key input for at least one second input character succeeding the first input character; upon receiving a key input for the second input character, searching for a priority table in which a displaying order of a succeeding alphabet character is designated; and controlling a displaying order of the second input character according to the priority table.
Abstract:
An image forming apparatus has a plurality of image bearing bodies in a predetermined sequence, an intermediate transfer medium for running in contact with each of the plurality of image bearing bodies, and a plurality of supporting rollers for driving the intermediate transfer medium. At least two image bearing bodies are oriented such that radius deviations of the respective image bearing bodies are in substantial registration along the intermediate transfer medium.
Abstract:
An image forming apparatus has a plurality of image bearing bodies in a predetermined sequence, an intermediate transfer medium for running in contact with each of the plurality of image bearing bodies, and a plurality of supporting rollers for driving the intermediate transfer medium. At least one image bearing body and at least one supporting roller are arranged such that a radius deviation of the image bearing body is in registration along a transfer medium with a radius deviation of the supporting roller.
Abstract:
A system and method for recording conversation voice signals in a wireless terminal. The wireless terminal determines whether a current conversation state is a silence state or a voice state. If the current conversation state is a voice state, the wireless terminal stores packet data. If the current conversation state is a silence state, the wireless terminal stores information regarding the number of silence frames.
Abstract:
A semiconductor memory device for minimizing the resistance attendant on reaching as far as each sense amplifier connected to a memory cell. A first plurality of power supply lines are alternatively disposed between column select lines which is formed over a plurality of lines of semiconductor memory device in a column direction. The first plurality of power supply lines the first plurality of ground lines are connected to a second plurality of power supply lines and a second plurality of ground lines which are disposed under the column select lines in a row direction, to thereby provide a netlike power supply structure. Consequently, the operating speed of a chip is improved by minimizing the resistance attendant on reaching as far as the sense amplifiers connected to each memory cell and the efficiency of the semiconductor memory device is greatly promoted by suppressing a coupling phenomenon caused between the column select lines.
Abstract:
Provided are an apparatus and method for reporting speech recognition failures. The method includes detecting pure speech data from input speech data and outputting the detected pure speech data; checking at least one speech recognition failure for the pure speech data; and ascertaining speech recognition failure reasons from a check-result for the speech recognition failures and outputting the ascertained speech recognition failure reasons.
Abstract:
Disclosed is a frame comparison apparatus and method for comparing frames included in an audio signal by using spectrum information. The frame comparison apparatus includes a spectrum information estimation apparatus for receiving an audio signal and estimating and outputting spectrum information for the respective frames included in the audio signal, an estimation operation option determiner for determining an estimation order of the spectrum information estimated from the spectrum information estimation apparatus, a frame comparison option determiner for determining a comparison order for the frames output from the spectrum information estimation apparatus, and a frame comparator for determining a comparison target frame which is a comparison target for a current frame included in the audio signal, comparing the spectrum information for the current frame with the spectrum information for the comparison target frame, and outputting a comparison result value.