| Patent application number | Description | Published |
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| 20090147788 | METHOD AND APPARATUS OF DOWNSTREAM SERVICE FLOWS CLASSIFICATION FOR HEADEND CABLE MODEM - A method and apparatus of classifying downstream service flows for a cable modem is provided. A method of classifying downstream service flows, the method including: classifying a service flow based on a Quality of Service (QoS) using a destination address of an inputted packet; composing an internal header including corresponding service flow information based on the classifying of the service flow; and adding the internal header to the inputted packet. | 06-11-2009 |
| 20090150955 | APPARATUS AND METHOD FOR SWITCH OPERATION OF DOWNSTREAM TERMINAL PLATFORM FOR IP DATA TRANSMISSION USING LEGACY TRANSMISSION SYSTEM IN HFC NETWORK - A method and apparatus for a switch operation of a downstream terminal platform for Internet Protocol (IP) data transmission using a legacy transmission system in a Hybrid Fiber Coax (HFC) network is provided. The downstream terminal platform includes: a Radio Frequency (RF) transmitter to distribute and combine a signal transceived by an HFC network; a broadband downstream receiver to process a broadband signal received by the RF transmitter; a cable modem (CM) to process data received or transmitted by the RF transmitter; an IP layer switch to transmit data to a corresponding Customer Premises Equipment (CPE), the data being received from the broadband downstream receiver to the CPE, or to enable user data received from the CPE to be transmitted to a headend using the CM; and a subscriber controller to control the downstream terminal platform. | 06-11-2009 |
| 20100157920 | APPARATUS AND METHOD OF CHANNEL BANDWIDTH ALLOCATION - Provided is an apparatus for a channel bandwidth allocation, the apparatus including: an information sorting unit to receive bandwidth allocation request information, to sort the received bandwidth allocation request information according to a priority, and to transfer any one of the sorted bandwidth allocation request information to a minislot allocation unit; and a calculation unit to apply a multiplier to a number of bytes, and to transfer, to the minislot allocation unit, the bandwidth allocation request information where a number of requested bytes is calculated, when the bandwidth allocation request information is byte-based bandwidth allocation request information, wherein the minislot allocation unit allocates a minislot based on the bandwidth allocation request information and predetermined setting information. | 06-24-2010 |
| 20100158036 | METHOD AND APPARATUS OF RECEIVING BURST DATA USING MULTIPLE UPSTREAM CHANNELS BASED ON UPSTREAM BANDWIDTH ALLOCATION INFORMATION IN HFC NETWORK - Provided is a method and apparatus for effectively receiving channel bonded upstream burst data in a Hybrid Fiber Cable (HFC) network. | 06-24-2010 |
| 20110149826 | BROADCASTING MEDIA ACCESS CONTROL DEVICE FOR TRANSMITTING AND RECEIVING PACKETS IN MULTI-CHANNEL BROADCASTING NETWORK - Provided is a Broadcasting Media Access Control (BMAC) device for providing a high-speed and high-capacity broadcasting service via a multi-channel broadcasting network. The BMAC device includes: an input packet classifier for generating a BMAC packet by inserting a serial number according to an input order of a plurality of input packets constituting one of contents; a BMAC packet scheduler for distributing the BMAC packet into a plurality of channels; and a plurality of encapsulators for multiplexing the BMAC packet distributed into the plurality of channels into a transport stream. | 06-23-2011 |
| 20110247032 | METHOD AND APPARATUS FOR REMOTELY INSTALLING AND UPDATING DIFFERENT SECURITY CLIENTS FOR BROADCASTING OR COMMUNICATION CHANNELS - A method for installing different security clients for channels in a terminal in a conditional access system includes: searching one or more channels searchable in the terminal; requesting, for respective searched channels, security clients necessary for receiving pay programs to be transmitted through the searched channels, to a broadcasting station which takes charge of the searched channels; and downloading and installing, for respective searched channels, the requested security clients from the broadcasting station. | 10-06-2011 |
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| 20090249088 | SEMICONDUCTOR APPARATUS INCLUDING POWER MANAGEMENT INTEGRATED CIRCUIT - Provided is a semiconductor apparatus including a power management integrated circuit. The semiconductor apparatus includes an application processor and a voltage management integrated circuit. The application processor outputs clock information on an operation clock signal, and includes a core circuit. The voltage management integrated circuit receives the clock information from the application processor, and generates and outputs a core voltage having a voltage level corresponding to the clock information in response to the clock information. The operation clock signal is a clock signal, which has a variable frequency and is input to the core circuit of the application processor. | 10-01-2009 |
| 20090308641 | CHIP HAVING SIDE PROTECTION TERMINAL AND PACKAGE USING THE CHIP - A chip includes a chip body having an upper surface on which an active surface is formed, and at least one side protrusion terminal protruding from a lateral surface of the chip body and electrically connected to the active surface. As a plurality of semiconductor chips or parts may be connected to one another on a single package, a one-chip or one-package of a package is possible and the thickness of the package can be reduced. | 12-17-2009 |
| 20110192296 | SCREEN PRINTER - Provided is a screen printer including a main body in which an operation region and at least one introduction and extraction portion are formed, wherein the operation region includes an installation position of a stencil mask therein, and, through the at least one introduction and extraction portion, the stencil mask is introduced into the operation region and is extracted from the operation region to an outside of the main body; and a conveyance unit which conveys the stencil mask introduced into and disposed at the operation region to the at least one introduction and extraction portion when the stencil mask is replaced by a new stencil mask introduced through the at least one introduction and extraction portion, and conveys the new stencil mask to the operation region. | 08-11-2011 |
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| 20080270872 | Apparatus and method for encoding low density parity check codes in a communication system - A Low Density Parity Check (LDPC) code encoding apparatus for a communication system is provided. The encoding apparatus receives information bits, and generates an LDPC code by encoding the information bits using an interleaving scheme. The interleaving scheme is generated such that when the LDPC code is punctured, there is no short-length cycle in a Tanner graph of the punctured LDPC code. | 10-30-2008 |
| 20100110875 | MODIFIED SLM SCHEME WITH LOW COMPLEXITY FOR PAPR REDUCTION OF OFDM SYSTEMS - Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are probabilistically independent and have identical information; linearly combining the plurality of OFDM signal sequences by using complex numbers; and generating different OFDM signal sequences based on the linear combination. Accordingly, the number of phase sequences can be increased without almost increasing a computation amount of SLM. | 05-06-2010 |
| 20100296433 | SOURCE ANTENNA SWITCHING SCHEME FOR NON-ORTHOGONAL PROTOCOL - The present invention relates to a source antenna switching scheme for a non-orthogonal protocol; and more particularly, to a source antenna switching scheme for a non-orthogonal protocol, which transmits a signal of a source node to a destination node through a relay node. The present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can acquire a greater diversity than the conventional NDF protocol. In other words, the present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can increase a diversity order by adding a reasonable priced antenna instead of expensive hardware such as an RF chain when there are a plurality of antenna in the RF chain. | 11-25-2010 |
| 20110185267 | ENCODING DEVICE, CONTROLLER AND SYSTEM INCLUDING THE SAME - An encoding device includes an encoder and a puncturing unit. The encoder generates parity bits based on information bits. The puncturing unit punctures the parity bits based on a puncturing pattern complying with a first criterion determining a period of the puncturing pattern and a second criterion determining positions of remaining parity bits. | 07-28-2011 |
