Patent application number | Description | Published |
20100141477 | APPARATUS AND METHOD FOR CONTROLLING TRAFFIC LIGHT - A traffic light control apparatus and method is provided. The traffic light control apparatus for controlling an emergency vehicle in a traffic network includes: a traffic network control unit configured to determine overall traffic network control and traffic light control for supporting movement of the emergency vehicle during an emergency and transmit a control signal; a traffic light control unit configured to receive the control signal to control a traffic light; and an emergency vehicle control unit configured to transmits a traffic light control mode cancellation request signal to the controlled traffic light. | 06-10-2010 |
20100142481 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL FOR HANDOFF IN BROADCASTING NETWORK - An apparatus for transmitting a signal for handoff in a transmitter of a broadcasting network where a plurality of center frequencies exist includes: a baseband broadcasting signal generation unit configured to generate a baseband broadcasting signal from broadcasting data to be transmitted; a transmitter identification signal sequence generation unit configured to generate a transmitter identification signal of the transmitter; a first transmission unit configured to combine the baseband broadcasting signal and the transmitter identification signal, and up-convert the combined signal to a center frequency of the transmitter; and a second transmission unit configured to modulate the transmitter identification signal, and up-convert the modulated transmitter identification signal to center frequencies of adjacent transmitters. | 06-10-2010 |
20110103513 | APPARATUS AND METHOD OF MULTI-ANTENNA TRANSMITTING FOR TERRESTRIAL DTV BROADCASTING SIGNAL AND ADDITIONAL DATA - Provided is a transmission apparatus and method for a terrestrial digital TV (DTV) broadcast and additional data using a multi-antenna. To transmit additional data inserted in a base band of a terrestrial DTV broadcast signal using a plurality of transmission antennas, the additional data signal may be temporal and spatial encoded or may be temporal and spatial multiplexed, and may be combined with a base band DTV broadcast signal before modulation and thus, a transmission efficiency of the additional data may increase without affecting a performance of an existing terrestrial DTV broadcast receiver. | 05-05-2011 |
20110103514 | TRANSMITTER/RECEIVER AND DATA TRANSMISSION/RECEPTION METHOD IN COMMUNICATION SYSTEM - A transmitter for transmitting data in a communication system includes: a serial/parallel (S/P) conversion unit configured to convert data into an I signal and a Q signal; multiplication units configured to multiply the converted I and Q signals by orthogonal sequences, respectively; conversion units configured to Hilbert-transform the I and Q signals multiplied by the orthogonal sequences; addition units configured to add the I and Q signals multiplied by the orthogonal sequences and the Hilbert-transformed Q and I signal, respectively; and an intermediate frequency (IF)/radio frequency (RF) unit configured to up-convert the added I signal and the added Q signal and transmit the converted I and Q signals. | 05-05-2011 |
20110107189 | APPARATUS AND METHOD FOR TRANSMITTING DATA IN COMMUNICATION SYSTEM - An apparatus for transmitting data in a communication system includes: a first repeater configured to repeat information bits of data to be transmitted a first repetition number of times; an interleaver configured to interleave the information bits repeated the first repetition number of times; an accumulator configured to accumulate-code the interleaved information bits; a second repeater configured to repeat the accumulate-coded information bits a second repetition number of times; a puncturer configured to puncture the information bits repeated the second repetition number of times; and a P/S converter configured to convert the punctured information bits and the information bits of the data and output RA-coded information bits. | 05-05-2011 |
20110151778 | RANGING UP-SIGNAL PRE-DISTORTION SYSTEM AND METHOD - Provided is a ranging up-signal pre-distortion system and method. The ranging-up signal pre-distortion system may include a channel gain estimator to estimate a channel gain based on a down-signal, and a signal distortion unit to distort a ranging up-signal based on the estimated channel gain. | 06-23-2011 |
20110151809 | APPARATUS AND METHOD FOR ANALYZING CHANNEL USING TRANSMITTER IDENTIFICATION SIGNAL - Provided is a channel analysis apparatus and method using a transmitter identification signal. The channel analysis apparatus using the transmitter identification signal may include a reference signal generating unit to generate a reference signal, a correlation unit to correlate a received signal and the reference signal to calculate a correlation value, an interpolation unit to interpolate the calculated correlation value, and an analysis unit to analyze the received signal using the interpolated correlation value. | 06-23-2011 |
20110234901 | APPARATUS AND METHOD FOR CONTROLLING INFRASTRUCTURE BASED ON BROADCASTING SIGNALS - An apparatus for transmitting broadcasting content including a control signal in a broadcasting network, the apparatus includes: a modulator configured to modulate broadcasting content by a predetermined modulation method; a control signal generator configured to generate a control signal for remote control of infrastructure; an adder configured to add the control signal to the modulated broadcasting content; and a DTV transmitter configured to convert the added signal to a DTV broadcasting signal and transmit the DTV broadcasting signal. | 09-29-2011 |
20120219087 | APPARATUS AND METHOD FOR IMPROVING HIGH-POWER SIGNAL RECEIVING PERFORMANCE USING LOW-POWER SIGNALS - Provided are an apparatus and a method for enhancing a reception performance of a high power signal using a low power signal. Main service data and supplementary information data that may supplement the main service data may be hierarchically modulated and be transmitted. The main service data may be modulated as a high power signal to be transmitted, and the supplementary information data may be modulated as a low power signal to be transmitted. | 08-30-2012 |
20130129015 | METHOD AND APPARATUS FOR TRANSCEIVING A BROADCAST SIGNAL IN A DIGITAL BROADCAST SYSTEM - The present invention relates to a method and apparatus for transceiving a broadcast signal in a digital broadcast system. The method for transmitting a broadcast signal according to one embodiment of the present invention comprises the following steps: generating a main signal using main data; generating an additional signal, the power of which is lower than that of the main signal, using a plurality of additional data; generating an additional signal frame using the additional signal and a frame header; and generating a broadcast signal using the main signal and an additional signal frame. The frame header is used in selectively extracting the plurality of additional data from the additional signal frame. According to the present invention, additional data can be efficiently transmitted while maintaining compatibility with existing digital broadcasting systems. | 05-23-2013 |