摘要:
Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
摘要:
Disclosed are an exhaust gas treating apparatus and a treating method for a carbon dioxide capture process, in which harmful substances remaining in the exhaust gas discharged from the conventional flue-gas desulfurization process are additionally removed for efficient performance of the carbon dioxide capture process. According to the exhaust gas treating apparatus for a carbon dioxide capture process, it has the effects of minimizing the installation space of desulfurization equipment and reducing the process cost. In addition, by keeping the contaminants contained in the gas introduced in the carbon dioxide capture equipment below a proper level, absorption performance can be improved as degradation of the absorbent used in the carbon dioxide capture process is prevented. After all, it has an advantage of preventing the pollution by the exhaust gas discharged into the atmosphere.
摘要:
An apparatus for drying particles in a fluidized state includes a particle input segment into which wet particles are input, a drying segment having a multi-perforated plate dividing an inner space of the drying segment into an upper section and a lower section, a plurality of upper partition plates partitioning the upper section and positioned above the multi-perforated plate, a plurality of lower partition plates in the lower section respectively corresponding to the plurality of upper partition plates, a plurality of pairs of channel plates in the lower section that pass through the multi-perforated plate such that each pair of the plurality of pairs of channel plates are respectively arranged on opposite sides of respective ones of the plurality of upper partition plates and on opposite sides of respective ones of the plurality of lower partition plates; and a heated-air flow supply segment for supplying hot gas to the drying segment.
摘要:
An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a hetero coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the hetero coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
摘要:
Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
摘要:
A regeneration reactor of a CO2 capture system is disclosed. According to an embodiment of the present invention, in the CO2 capture system comprising a capture reactor selectively adsorbing CO2 by bringing a CO2-containing gas supplied from the outside into contact with a solid adsorbent, and a regeneration reactor separating the adsorbed CO2 from the solid adsorbent adsorbed with the CO2, the regeneration reactor includes a chamber having an inverted truncated cone shape being widened toward an upper part and narrowed toward a lower part, such that a pressure in the regeneration reactor is constantly maintained through the whole part and accordingly, a flow velocity in the chamber can be constantly maintained.
摘要:
Provided is an apparatus and method for searching for an accessible network in a multi-mode portable terminal in support of access to at least two different networks. The portable terminal includes a first communication module configured to communicate with a heterogeneous network, a second communication module configured to communicate with a mobile communication network, a Received Signal Strength Indicator (RSSI), and a controller. The RSSI determines if the portable terminal is in a service coverage area of the heterogeneous network. The controller operates the first communication module to demodulate received signals and determine if the received signals are of the heterogeneous network, when the RSSI determines that the portable terminal is in the service coverage area of the heterogeneous network.
摘要:
Provided are a lossless audio coding/decoding apparatus and method. The lossless audio coding apparatus includes a first coder to directly code first symbols; a second coder module comprising a plurality of second coders to convert the first symbols into second symbols and to code the second symbols; a first selector to compare the performance of the first coder to the performance of the second coders and to output a coding mode in accordance with a comparison result; and a second selector to output a final bitstream by coding the first symbols in correspondence with the coding mode. According to the present invention, the performance of audio coding may be improved.
摘要:
Provided are a method and apparatus for reproducing sound. A sound signal may be generated by receiving sound around the apparatus. An output signal may be generated by performing a process according to functions of the apparatus on a residual signal obtained by canceling a feedback signal from the sound signal.
摘要:
Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.