Abstract: A method and apparatus for recording digital data streams on a recording medium are provided. The method includes checking the existence of entry point information in a received digital transport stream, and creating map information regarding the entry point information. The map information includes time information and location information regarding the entry point information.

Abstract: A plasma display panel having a structure that is capable of reducing a discharge area to decrease a discharge power. In the panel, first and second electrodes for generating a radio frequency discharge are arranged to be opposite and perpendicular to each other. The two electrodes generating the radio frequency discharge are perpendicularly arranged to limit the luminous area into the perpendicular area, thereby reducing a discharge power and improving the luminescence efficiency.

Abstract: A digital VSB transmission system that is able to send supplemental data along with MPEG image/sound data is enclosed. The system initially encodes the supplemental data symbol to generate a parity bit, and it multiplexes the parity bit with a predefined sequence and transmits the multiplexed data to a receiver. The system is compatible with the existing ATSC 8T-VSB receivers that are already on the market. It can have advantages over the other types of VSB transmission systems that transmit only the predefined sequence. In addition, the system according the to the present invention results an improved robustness against ghost and noise signals in a channel compared to systems using only the ½ rate convolutional encoding.

Abstract: A digital VSB transmission system that is able to send supplemental data along with MPEG image/sound data is enclosed. The system initially encodes the supplemental data symbol to generate a parity bit, and it multiplexes the parity bit with a predefined sequence and transmits the multiplexed data to a receiver. The system is compatible with the existing ATSC 8T-VSB receivers that are already on the market. It can have advantages over the other type of VSB transmission systems that transmit only the predefined sequence. In addition, the system according the to the present invention results a improved robustness against ghost and noise signals in a channel compared to systems using only the ½ rate convolutional encoding.

Abstract: A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the supplemental data to be transmitted, a null sequence inserter for inserting a null sequence to an interleaved supplemental data for generating a predefined sequence, a header inserter for inserting an MPEG header to the supplemental data having the null sequence inserted therein, a multiplexer for multiplexing an MPEG data coded with the supplemental data having the MPEG header added thereto in a preset multiplexing ratio and units. The output of the multiplexer is provided to an 8T-VSB transmission system for modulating a data field from the multiplexer and transmitting the modulated data field to a VSB reception system.

Abstract: A channel decoding device for a receiver which receives symbols coded by inserting at least one specific bit in a data frame at a predetermined position. In the channel decoding device, a symbol inserter receives the symbols, inserts a symbol having a specific value at a predetermined specific bit insert position and outputs the received symbols at other positions. A decoder decodes symbols output from the symbol inserter.

Abstract: An apparatus for accurately testing durability of a switch for an automobile in the state that the switch mounted on the instrument panel of the automobile, the apparatus comprises a switch operating means that operates a switch fitted on the instrument panel of an automobile, a jig means for setting the switch operating means to the inside of the automobile, and a control means for controlling operation of the switch operating means.

Abstract: A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according to a number of the supplemental data packets being transmitted. The VSB reception system detects the required multiplexing information from the field synchronization signal or the supplemental data and decodes the multiplexed data by using the null sequence and the detected multiplexing information, as well as demultiplexes the multiplexed data into the MPEG data and the supplemental data.

Abstract: A smelting reduction apparatus which separates exhaust gas, which is exhausted from a melter-gasifier or a fluidized bed reactor, into dusts and reducing gas to supply them to each fluidized bed reactor respectively is disclosed, in which the smelting reduction apparatus includes a three-stage type fluidized bed reactor, a melter-gasifier for manufacturing molten pig iron by finally reducing the fine iron ores of which reaction is finished in a final fluidized bed reactor, and a dust separating device, which performs separation of exhausted gas from the melter-gasifier into dusts and reducing gas, so as to supply the separated reducing gas to a lower part of the final fluidized bed reactor, dusts having a larger particle sizes in the separated dusts to the melter-gasifier again, and fine dusts having a smaller particle sizes in the separated dusts to an upper part of a gas distributor of the final fluidized bed reactor.

Abstract: A base station and a mobile station for a CDMA communication system intermittently exchange data on a power control group unit or time slot unit in a control hold state to minimize interference. To this end, during channel transmission, the system intermittently transmits a reverse pilot channel signal in the control hold state; upon activation of a reverse dedicated control channel, transmits a normal pilot channel signal which is first generated after activation of the reverse dedicated control channel; and then transmits the reverse dedicated control channel.

Abstract: A method of forming a silicon oxide layer of a semiconductor device comprising coating a spin-on glass (SOG) composition including perhydropolysilazane having a compound of the formula (SiH2NH2)n where n represents a positive integer on a semiconductor substrate having a surface discontinuity, to form a planar SOG layer; and forming a silicon oxide layer with a planar surface by implementing a first heat treatment to convert an SOG solution into oxide and a second heat treatment to densify thus obtained oxide. The silicon oxide layer of the present invention can bury a gap between gaps of VLSI having a high aspect ratio and gives the same characteristics as a CVD oxide layer. Further, the oxidation of silicon in the active region is restrained in the present invention to secure dimension stability. Also disclosed is a semiconductor device made by the method.

Abstract: A plasma display panel capable of utilizing a radio frequency discharge efficiently and driving method and apparatus thereof are disclosed. In the PDP, each cell is provided with a radio frequency electrode for applying a radio frequency voltage, a data electrode for applying a data voltage, a scanning electrode for applying a scanning voltage, and a discharge space into which discharge gases for causing a gas discharge are injected. Accordingly, a distance between two electrodes used for a radio frequency discharge is assured sufficiently to utilize a smooth radio frequency discharge as a display discharge, thereby improving the brightness and the discharge efficiency. Also, an alternating current discharge having a control easiness is used for the address discharge while a radio frequency discharge having a good efficiency is used for a sustaining discharge, thereby utilizing advantages in the two discharge.

Abstract: A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the supplemental data to be transmitted, a repetition coder for inserting repetion data to an intereaved supplemental data for generating a predefined sequence, a header inserter for inserting an MPEG header to the supplemental data having the repetion code inserted therein, a multiplexer for multiplexing an MPEG data coded with the supplemental data having the MPEG header added thereto in a preset multiplexing ratio and units. The output of the multiplexer is provided to an 8T-VSB transmission system for modulating a data field from the multiplexer and transmitting the modulated data field to a VSB reception system.

Abstract: A rewritable recording medium and a system for creating or recording presentation order information for the recording medium are disclosed. The rewritable recording medium includes (a) a data area in which a data file is recorded, and (b) a navigation information area in which a navigation information file is recorded. The navigation information file includes a plurality of presentation order information units for defining a data presentation sequence and a plurality of presentation order information groups each of which including at least one of the presentation order information units. Recording of new data is permitted only when the total number of the presentation order information units for all the presentation order information groups is less than a predetermined value.

Abstract: A digital VSB transmission system in disclosed. The system is compatible with the existing ATSC 8T-VSB receiver and able to transmit additional supplemental data as well as MPEG image/sound data. It initially encodes the information bit of the supplemental data with a ½ encoding rate in order to produce a parity bit and sends the parity bit together with the information bit. Therefore, both of the MPEG image/sound data and the supplemental data can be transmitted properly even through a channel having a high ghost and/or noise level. Particularly, it can significantly improve performances of the slicer predictor and trellis decoder of the VSB receiver.

Abstract: A method and apparatus for recording received digital data streams on a recording medium such as a digital video disk and creating and recording management information pertaining to the recorded digital data streams. Random access information contained in the received digital data streams is detected and stream object units are created based upon the detected random access information, which enables reproduction of recorded data to start from the transport stream packet having the random access information and prevents imperfect data reproduction after track seek or time seek operations.

Abstract: A device for time alignment on a reverse link in a CDMA mobile communication system. A base station stores a reference sync channel RTD (Round Trip Delay), calculates the difference between the reference sync channel RTD and a measured sync channel RTD, and outputs a time alignment control signal on a forward control channel when the calculated RTD error exceeds a predetermined value, during a data communication. A terminal receives the time alignment control signal on the forward control channel and time aligns a reverse traffic channel based on the received time alignment control signal.

Abstract: The LSF quantizer for a wideband speech coder comprises a subtracter for receiving an input LSF coefficient vector and removing a DC component from it; a memory-based vector quantizer and a memoryless vector quantizer for respectively receiving the DC-component-removed LSF coefficient vector and independently quantizing the same; a switch for receiving quantized vectors respectively quantized by the memory-based vector quantizer and the memoryless vector quantizer, selecting a quantized vector that has less quantized error that is a difference between the received quantized vector and the input LSF coefficent vector from among the received quantized vectors, and outputting the same; and an adder for adding the quantized vector selected by the switch to the DC component of the LSF coefficient vector.

Abstract: A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.

Abstract: A CDMA communication system provides a dedicated control channel capable of efficiently communicating control messages between a base station and a mobile station. In a dedicated control channel transmission device, a controller determines a frame length of a message to be transmitted and outputs a frame select signal corresponding to the determined frame length. A message generator generates frame data of the message to be transmitted according to the frame select signal. A transmitter spreads the frame data and transmitting the spread frame data through a dedicated control channel. In a dedicated control channel reception device, a despreader despreads a received signal. A first message receiver deinterleaves and decodes the despread signal in a first frame length to output a first message, and detects a first CRC corresponding to the decoded signal.