Matches 1 - 50 out of 161 1 2 3 4 >


Match Document Document Title
8848831 Direct digital synthesis of quadrature modulated signals  
An apparatus comprises a direct digital synthesizer, a mixer having first and second input ports and an output port, and a numerically-controlled oscillator. The direct digital synthesizer has a...
8824529 Signal transmission system, transmitting device, receiving device, electronic device, and signal transmission method  
A signal transmission system includes: a transmitting section including a first carrier signal generating section configured to generate a carrier signal for modulation and a first frequency...
8761298 Apparatus and method for transmitting and receiving signal in multiple input multiple output system  
A method and apparatus for transmitting and/or receiving a signal in a multiple input multiple output (MIMO) system are provided. An apparatus for transmitting a signal in a multiple input...
8750803 Interference cancellation for predictive signals  
A method, apparatus, system, and computer program product example embodiments of the invention are disclosed to reduce interference of predictive signal transmissions between wireless devices. In...
8717147 Passive RFID system and method  
Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a...
8699600 Method and apparatus of an 8VSB SFN distributed translator system  
A frequency and data synchronization control system through the 8VSB SFN DTx modulation prevents the deterioration of the digitally broadcasted receiving sensitivity caused by a discrepancy of the...
8699622 Methods and apparatuses for implementing selective interference-filter pre-coding of main-service 8-VSB DTV signals  
Methods for discontinuing interference-filter pre-coding of 8-VSB digital television (DTV) signals during ancillary-service transmissions are disclosed that do not disrupt reception of...
8611431 Method and apparatus for transmitting data  
An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active...
8582689 Apparatus and method for transmitting/receiving data in communication system  
An apparatus for transmitting data in a communication system includes: a processor configured to process broadcasting data regarding various types of digital broadcasts to be provided to users; an...
8572648 Transmitting/receiving system and method of processing data in the transmitting/receiving system  
A receiving system and a data processing method are disclosed. The receiving system includes a receiving unit, a demodulator, a first handler, and a second handler. The receiving unit receives a...
8526482 Non-contiguous variable length orthogonal codes  
Systems for transmitting information symbols utilize ternary codes or pivot codes in conjunction with spread spectrum encoding. The systems comprise at least a first symbol source for supplying an...
8526542 Diversity receiver for processing VSB signal  
A diversity receiver configured to receive digital signals, including a first modulator configured to receive a first signal and modulate the first signal to first data, a second modulator...
8494081 Transmission device  
The present invention aims to provide a transmission device that, in a communication system using multilevel modulation with 2^n levels (n being an integer greater than or equal to two), limits...
8494083 Transmitting/receiving system and method of processing broadcast signal in transmitting/receiving system  
An apparatus and method for transmitting digital broadcast signal are provided. The apparatus includes a group formatter to format a data group including mobile service data, where the group...
8488667 DTV transmitter and method of coding data in DTV transmitter  
A digital television (DTV) transmitter includes a first randomizer randomizing enhanced data; a Reed-Solomon (RS) frame encoder generating an RS frame; a block processor encoding data in the RS...
8472544 Digital television transmitter and method of coding data in digital television transmitter  
A digital television (DTV) transmitter and a method of coding data in the DTV transmitter method are disclosed. A pre-processes enhanced data by coding the enhanced data for forward error...
8458752 Method for receiving broadcasting signal and broadcasting receiver  
A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be...
8451934 Method and system for increasing throughput of a wireless channel using multipath transmission  
A method and system for increasing the throughput of a wireless channel that sends different data on different multi-path components. The channel can be pre-mapped or dynamically mapped, and the...
8416882 Digital amplitude control of vector generator  
In an exemplary embodiment, an active vector generator is configured to generate a composite vector with controlled phase and amplitude, where the active vector generator generates the composite...
8416864 Initialization of and modem for an OFDM data transmission  
A method and modem are provided for obtaining an optimized efficiency of an Orthogonal Frequency Division Multiplex (OFDM) data transmission, such as for power line communication, for example. The...
8344818 Single side band (SSB) mixer  
A single sideband mixer is constructed with digital logic elements such as T-type flip-flops and inverters and with FETs, and the resulting mixer circuit simultaneously improves control over the...
8315314 Method and apparatus for transmitting data  
An implementation provides a transmitter that separates sequential portions of data in a first set of data by time intervals allowing a power saving mode (1005). The transmitter transmits the...
8311141 Time-dependent trellis coding for more robust digital television signals  
Different sets symbols are precluded at prescribed times in time-dependent trellis coding. This increases the distances between different individual symbols as well as the distances between...
8270533 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...
8254706 E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof  
An E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof are disclosed. In the present invention, E8-VSB data...
8199839 Digital broadcast transmitting/receiving system having an improved receiving performance and signal processing method thereof  
A digital broadcast transmitting/receiving system and a signal processing method thereof that can improve the receiving performance of the system. A digital broadcast transmitter has a randomizer...
8175193 Apparatus for recovering carrier wave in digital broadcasting receiver and method therefor  
An apparatus for recovering carrier wave in digital broadcasting receiver and a method therefore are disclosed which are capable of easily detecting and correcting frequency offsets of carrier...
8165227 Method of keying for broadcast using OFDM  
A method of modulation, which is applied to a communication system transmitting data in one frequency band using at least two orthogonal subcarriers, is disclosed. The present invention includes...
8155238 Device for processing radio transmission data with digital predistortion  
A device for processing data which is to be transmitted by radio, with the data to be transmitted being in the form of a digital baseband signal (DAT1), has a filter unit (301) for pulse shaping...
8149951 Digital broadcasting system and method of processing data  
A digital broadcast system including a broadcast receiving system and data processing method are disclosed. In the broadcast receiving system receiving broadcast signals, the broadcast receiving...
8149755 Digital broadcasting system and method of processing data in digital broadcasting system  
A digital broadcast system and a method of processing data disclose. A receiving system of the digital broadcast system may include a baseband processor, a management processor, and a presentation...
8130873 Carrier recovery apparatus usable with VSB type receiver and method thereof  
A carrier recovery apparatus usable with a VSB receiver and a method thereof. The carrier recovery apparatus is capable of recovering a carrier even though a pilot signal may be corrupted due to...
8130833 VSB transmission system for processing supplemental transmission data  
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...
8121213 Modulation device, demodulation device, modulation method and demodulation method  
A modulation apparatus is disclosed that enables significant improvements in signal transmission rate in a limited frequency band as compared with conventional modulation schemes. The modulation...
8059718 VSB transmission system for processing supplemental transmission data  
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...
8014333 Digital broadcasting system and method of processing data in digital broadcasting system  
A digital broadcast system and a method of processing data disclose. A receiving system of the digital broadcast system may include a baseband processor, a management processor, and a presentation...
8005304 E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof  
An E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof are disclosed. In the present invention, E8-VSB data...
RE42643 Communication system  
At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and...
8005166 System for digital television broadcasting using modified 2/3 trellis coding  
8VSB-compatible DTV broadcasting that employs outer coding of a sort in which interleaved data and outer coding parity are inner coded by the ⅔ trellis code encoder is improved. This is done by...
7966633 Method for receiving broadcasting signal and broadcasting receiver  
A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be...
7949072 Local oscillator with injection pulling suppression and spurious products filtering  
A single sideband mixer circuit includes a voltage controlled oscillator operable a tunable frequency f1. The mixer circuit outputs a frequency signal at a frequency f1±f2. A tracking filter...
7941735 Transmitter and system for transmitting/receiving digital broadcasting stream and method thereof  
A digital broadcasting transmission system processes dual transport stream (TS) including multi turbo streams. The digital broadcasting transmission system includes a turbo processor to detect a...
7894549 VSB transmission system  
A vestigial sideband (VSB) modulation transmission system and a method for encoding an input signal in the system are disclosed. According to the present invention, the VSB transmission system...
7889751 Low power wireless communication system  
A transmitter, a receiver, and a transceiver for use in a wireless communication system are disclosed. In one embodiment, the radio frequency (RF) transmitter comprises a first parallel-to-serial...
7890980 Method for receiving broadcasting signal and broadcasting receiver  
A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be...
7869484 Transmitter apparatus with adaptive power and phase for CDMA applications  
A spread spectrum cellular network (FIG. 1) mobile unit transmitter (30) that enables communication via protocols having different bandwidth (372) and baseband signal generation (260), the...
7840077 E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof  
An E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof are disclosed. In the present invention, E8-VSB data...
7826549 Wireless communication transmitter and system having the same  
A method and apparatus is disclosed herein for transmitting data wirelessly. In one embodiment, the transmitter comprises a first group of stages comprising a first plurality of XOR gates and a...
7826561 Single sideband voice signal tuning method  
Method for tuning a Single Sideband receiver including processing the signal in the time domain, converting the signal to the frequency domain, processing the signal in the frequency domain,...
7782923 Wireless communication system and device for controlling the peak to average power ratio  
A wireless communication system, to control a peak power to an average power ratio because an amplifier characteristic of the wireless communication system include non-linear characteristic if...

Matches 1 - 50 out of 161 1 2 3 4 >