Patent application number | Description | Published |
20100068989 | CHIP EQUALIZATION APPARATUS AND METHOD THEREOF - Disclosed is a chip equalization apparatus and method thereof, which selects some clusters with high signal power among broadcast signal clusters continuously received in multi-path channels to extract a plurality of cluster signals, equalizes each of the input cluster signals, and combines all equalization outputs again, thereby leading to low power consumption and efficient equalization. The chip equalization apparatus for use in a satellite broadcasting receiving system comprising: a cluster signal extracting part for extracting a plurality of cluster signals from received broadcast signals; and a plurality of chip equalizers receiving cluster signals from the cluster signal extracting part and updating tap coefficients to compensate the broadcast signals. | 03-18-2010 |
20100100374 | APPARATUS AND METHOD FOR VOICE PROCESSING IN MOBILE COMMUNICATION TERMINAL - Disclosed are an apparatus and a method for voice processing in a mobile communication terminal. A plurality of microphones are used to remove environmental noise at the time of voice communication, so that it is possible to perform high-quality voice communication and video telephony. Moreover, it is possible to perform voice recording even when a user does not open a mobile communication terminal. Furthermore, when voice is recorded or sound is recorded during moving image photographing, a plurality of microphones are effectively utilized to achieve good-quality recording and to perform recording conveniently even when the folder or the slider of the mobile communication terminal is closed. Therefore, it is possible to provide improved convenience in using the mobile communication terminal. | 04-22-2010 |
20100110931 | METHOD FOR ALLOCATING AN ADDRESS OF DEVICE IN WIRELESS PERSONAL AREA NETWORK (WPAN) AND WPAN DEVICE - The present invention relates to a method of efficiently assigning addresses in a WPAN and a WPAN device. The address assignment method of the present invention is performed by a higher device. Address assignment information for determining an address to be assigned to a lower device, is managed. An address is assigned to a lower device that requests connection from the higher device based on the address assignment information. The address assignment information is updated to a address value as the address value is assigned, and the updated address assignment information is transmitted to lower devices. If an update of address assignment information is requested by the lower device that assigned an address value to a device lower thereto, the address assignment information is updated and the updated address assignment information is transmitted to lower devices. | 05-06-2010 |
20100111048 | METHOD FOR ALLOCATING A BEACON SLOT USING A BEACON TABLE IN WIRELESS PERSONAL AREA NETWORK (WPAN) AND WPAN DEVICE - The present invention relates to a method in which each device sets its own beacon slot by using beacon slot information of its neighbors and its neighbors' neighbors in a WPAN. In the method, beacon slot information of the neighbors and the neighbors' neighbors is received from neighbor devices. The beacon slots of the neighbors and the neighbors' neighbors are decided as beacon slots to avoid. The beacon slot of the WPAN device of the present invention is set among beacon slots of the beacon-only period, except for the beacon slots decided as beacon slots to avoid. | 05-06-2010 |
20100295992 | SYSTEM AND METHOD FOR SYNCHRONING BROADCAST CONTENT WITH SUPPLEMENTARY INFORMATION - Disclosed herein is a system and method for providing a supplementary information associated with a broadcast content. The system provides a supplementary information associated with a specific broadcast program in the broadcast content by means of a supplementary information server, wherein the supplementary information server comprises a broadcasting receiving unit for receiving the broadcast content; a synchronization information unit for storing a synchronization information of the supplementary information associated with the specific broadcast program; a video comparison unit for comparing screens of the broadcast content with a previously stored scene change screen of the specific broadcast program and setting a start time of the specific broadcast program; a supplementary information extracting unit for calculating an elapsed time from the start time of the specific broadcast program to a specific screen and extracting the supplementary information corresponding to the elapsed time. The supplementary information associated with the specific broadcast program in the broadcast content is provided through the steps of receiving a synchronization information of the supplementary information associated with the specific broadcast program; setting a start time of the specific broadcast program by comparing screens of the broadcast content with a previously stored scene change screen of the specific broadcast program; calculating an elapsed time corresponding to a specific screen based on the start time; extracting the supplementary information corresponding to the elapsed time. | 11-25-2010 |
20100322116 | METHOD AND SYSTEM FOR ESTIMATING ADAPTIVE COMBINED CHANNEL IN CDMA SYSTEM BASED ON TIME DIVISION DUPLEX SYSTEM - Disclosed is a method and system for estimating an adaptive joint channel in a CDMA system based on TDD. The method includes the steps of a) receiving activity information of a mobile terminal; b) parsing the activity information, and transmitting a midamble sequence to the mobile terminal when a result of the parsing shows that the mobile terminal is in an ON state; c) conducting adaptive joint channel estimation by using the midamble sequence in the mobile terminal; and d) conducting adaptive joint detection by using a channel impulse response of the mobile terminal, obtained as a result of conducting the adaptive joint channel estimation. The method and system decreases the complexity in channel estimation and additionally increases the accuracy of channel estimation by reducing transmission power consumption and eliminating unnecessary interference. | 12-23-2010 |
20100325667 | SYSTEM, SERVER AND METHOD FOR PROVIDING SUPPLEMENTARY INFORMATION SERVICE RELATED TO BROADCAST CONTENT - The present invention relates to a system and method for providing a supplementary information service related to broadcast content. The system for providing a supplementary information service related to broadcast content being broadcasted to user terminal comprises a Time Information Creating Server for Identifying a start time information of the broadcast content; and a Supplementary Information Service Providing Server for receiving the start time information of the broadcast content from the Time Information Creating Server, calculating elapsed time for a specific scene based on the start time information, and providing a user terminal with an supplementary information corresponding to the scene based on the elapsed time, through a communication network. And the method for providing a supplementary information related to broadcast content being broadcasted to user terminal comprises steps of identifying a start time information of the broadcast content; calculating elapsed time for a specific scene based on the start time information; and providing a user terminal with an supplementary information corresponding to the scene based on the elapsed time, through a communication network. | 12-23-2010 |
20110075763 | LOCAL WIRELESS SIGNAL TRANSMITTING/RECEIVING APAPRATUS AND METHOD USING DIGITAL RADIO FREQUENCY PROCESSING TECHNOLOGY - A local wireless signal transmitting/receiving apparatus and method using digital RF processing technology. When the local wireless signal transmitting/receiving apparatus generates a local wireless signal to be transmitted, spreads the frequency of the generated local wireless signal and thereby generates a baseband signal, the local wireless signal transmitting/receiving apparatus converts the baseband signal of the local wireless signal into phase information, converts the phase information into an RF signal by means of a polar modulator, and transmits the RF signal. | 03-31-2011 |
20110299423 | SYSTEM AND METHOD FOR QOS SUPPORT IN UBIQUITOUS SENSOR - The present invention relates to a system and to a method for QoS (Quality of Service) support in a ubiquitous sensor network. The system for QoS support in a ubiquitous sensor network includes a mesh coordinator and nodes. The mesh coordinator organizes a super frame containing a dedicated QoS data transmission period, and synchronizes each of the nodes constituted into one network with the abovementioned super frame. The nodes create a beacon frame containing information on whether or not to set QoS, to broadcast the beacon frame in a dedicated beacon period of the super frame if QoS data transmission is needed, to create a QoS data frame with a set priority, and to transmit the QoS data frame to the dedicated QoS data transmission period of the super frame in the case of transmitting QoS data. The present invention divides QoS data from general data to improve the quality of data transmission and ensure stability, and prioritizes QoS data to transmit the most important data among QoS data in a quick and stable manner. | 12-08-2011 |
20120026999 | LOCAL AREA BROADCASTING SERVICE SYSTEM AND METHOD, AND WIRELESS TRANSMISSION DEVICE APPLIED THEREIN - Provided is a system and method for a local area broadcast service, and a wireless transmission apparatus applied to them. In the system, contents to be broadcasted in a predetermined local area are transmitted from a broadcast server to a wireless transmission apparatus through a wired network based on an Internet Protocol and the contents are then broadcasted from the wireless transmission apparatus to one or more user terminal devices. Therefore, according to the present invention, a server of a wired network can easily provide particular contents for each particular local area to one or more user terminal devices in the local area. Moreover, it is possible to reduce the load of the server, when the server provides multiple types of contents or provides contents to a plurality of user terminal devices. | 02-02-2012 |
20120163362 | PACKET TRANSMISSION SYSTEM BASED ON WIRELESS PERSONAL AREA NETWORK AND METHOD THEREOF - Disclosed is a network interworking system and method. That is, a header size is minimized through a fragment of an IPv4 packet based IP packet and a header compression and it is implemented such that the IPv4 is loaded in an IEEE 802.15.4 MAC/PHY packet having a small payload, so that it is possible to efficiently transmit an IPv4 packet by using an IEEE 802.15.4 based WPAN. Further, various applications can be executed using the IPv4 while using an IEEE 802.15.4 technology, which is a low power communication technology, in a mobile device. | 06-28-2012 |
20120163363 | SYSTEM AND METHOD FOR MINIMIZING SIGNAL INTERFERENCE BETWEEN BROADCASTING SIGNALS AND COMMUNICATION SIGNALS WITHIN LOCAL AREA AND APPARATUS APPLIED TO THE SAME - Disclosed is a system and a method for minimizing signal interference for a broadcasting and communication convergence section within a local area, and an apparatus applied to the same. The system has a construction of mounting a plurality of multi RF (Radio Frequency) channels within a local area wireless communication apparatus located in a local area and minimizing signal interference between mutually adjacent RF channels within the local area wireless communication apparatus in a standard for providing a broadcasting and communication convergence service. Accordingly, it is possible to remove the mutual channel effects affecting a communication signal without signal interference for adjacent channels due to a broadcasting signal and it is not necessary to enhance a filtering characteristic for the adjacent channels of a chipset, which corresponds to a broadcasting and communication convergence standard structure in a local area, so that there is an advantage of reducing network investment costs. | 06-28-2012 |
20120170579 | MULTICAST SYSTEM AND MULTICAST METHOD USING SHORTENED ADDRESS AND APPARATUS APPLIED TO THE SAME - Disclosed is a multicast system and a multicast method using a shortened address and an apparatus applied to the same. The multicast system using the shortened address according to the present disclosure has a address configuration for supporting a multicast in an IEEE 802.15.4 MAC (Medium Access Control) layer. Accordingly, when a device processes a multicast through an address configuration of the MAC layer, the device receives the multicast through a simple scheduling such as receiving a beacon signal of a coordinator device only when there is a broadcast of a group including the device. As a result, the device can efficiently perform the multicast in a power managing process or a power processing process. | 07-05-2012 |
20120269038 | SYSTEM AND METHOD FOR REDUCING DATA RECEPTION ERROR IN ACOUSTIC COMMUNICATION IN AUDIBLE FREQUENCY RANGE, AND APPARATUS APPLIED THERETO - Provided is a data reception error reduction system and method in acoustic communication in audible frequency range, and an apparatus applied thereto. The data reception error reduction system in the acoustic communication in audible frequency range may be configured to reduce a data reception error in a receiver by taking into consideration that a sound signal is noisy and is significantly affected by a change in the ambient environment when the acoustic communication is performed in the audio frequency band through modification of an audio signal or adding of a predetermined signal to an audio signal. Accordingly, the data reception error may be reduced in the receiver even in an environment where a sound signal is noisy and is significantly affected by a change in the ambient environment, and reliability of data transmission may increase. | 10-25-2012 |
20120269371 | SYNCHRONIZATION SYSTEM AND METHOD FOR TRANSMISSION AND RECEPTION IN AUDIBLE FREQUENCY RANGE-BASED SOUND COMMUNICATION, AND APPARATUS APPLIED THERETO - Provided is a synchronization system and method for acoustic communication in audible frequency range, and an apparatus applied thereto. The synchronization system for acoustic communication in audible frequency range is configured to prevent deterioration of a synchronization performance and to reduce an amount of calculation by calculating a correlation based on a few samples as opposed to calculating a correlation for each sample when a receiver of the acoustic communication performs synchronization while the acoustic communication is performed in the audible frequency range through modification of an audio signal or adding of a predetermined signal to an audio signal. | 10-25-2012 |