Abstract: A timer control device controlling at least one timer-controlled device having a timer built therein via a network, the time control device including: a timer setting unit setting an operating time and an operating method of the timer built in the at least one timer-controlled device; a timer absolute time provider providing a standard time of an area in which the timer control device is located; a control message generator generating a control message by combining the operating time and operating method of the timer of the timer setting unit with the standard time of the timer absolute time provider; and a control message transmitter transmitting the control message generated by the control message generator to the at least one timer-controlled device.

Abstract: A method for scanning an Access Point (AP) of a portable communication terminal is provided, which includes upon camping onto an AP, storing current cell environment information to a memory, periodically scanning a cell, comparing the result of the scanning with the stored cell environment information of the memory, computing the number of cells within an acceptable error range, and conducting a scanning at a predefined scanning period according to the number of cells.

Abstract: A method for connecting personalized devices through a wireless link, a personalized device, and a wireless connection system using the same are provided. In the method, wireless connection information of a plurality of coordinator devices connected to a personalized device through a wireless link up to now is stored and a priority of the coordinator device is decided using the stored connection information. Then, a channel is set to receive connection information, and connection information is received from a coordinator device through the set channel. If the coordinator device transmitting the connection information is the coordinator to connect, the coordinator device is connected. If not, a coordinator device having the next highest priority is decided.

Abstract: Provided is an apparatus for automatically installing/uninstalling peripheral devices, and a system and method for automatically detecting peripheral devices using the same. The system includes a plurality of peripheral devices for periodically transmitting each of peripheral device information for auto-detection within a predetermined network region; a peripheral installation information providing device for providing data and information required for installing each peripheral device; and a peripheral device installing/managing apparatus for determining whether the peripheral device is installed based on the peripheral device information periodically transmitted from one peripheral device within a predetermined network region, receiving data and information required for installing the peripheral device from the peripheral installation information providing device through a network, and automatically installing and managing the peripheral device.

Abstract: A Reed-Solomon (RS) decoding apparatus having high error correction capability and a method thereof are disclosed. The apparatus includes: error location and analysis polynomial generating units for performing a modified Euclid algorithm by receiving syndrome data upon receipt of an enable signal, and suspending input of the syndrome data and outputting error location polynomial data and error analysis polynomial data by executing the modified Euclid algorithm independently upon receipt of a disable signal; a controlling unit for controlling the error location and analysis polynomial generating unit and the input of the syndrome data; and switching units for providing the syndrome data to corresponding error location and analysis polynomial generating unit upon receipt of the enable signal and controlling the input of the syndrome data upon receipt of the disable signal. The number of the switching units is identical to that of the error location and analysis polynomial generating units.

Abstract: Provided are a multiplexing and demultiplexing apparatus and method for delivering an MPEG-2 TS packet error signal through a CableCARD interface. In the multiplexing apparatus, a TS packet reception unit receives TS packets, and a pre-header generation unit generates pre-headers corresponding to the received TS packets. A pre-header insertion unit inserts the pre-headers in front of the received TS packets to generate cable MPEG packets (CMPs), and an output FIFO unit stores the CMPs. A FIFO control unit transfers the CMPs without collision with CMPS of different channels, and an output signal generation unit generates output signals from the CMPs of the different channels.

Abstract: Provided are an apparatus for receiving cable broadcasting programs and a multiplexer and a de-multiplexer thereof for reducing data amount processed in a Cable CARD and for correcting synchronization of descrambled data stream. The apparatus includes: a multiplexing unit for filtering a broadcasting stream to select only programs selected by a viewer and multiplexing the selected programs; a conditional-access processing unit for receiving the multiplexed streams and processing the multiplexed streams for conditional access (descrambling); and a de-multiplexing unit for de-multiplexing the multi stream from the conditional-access processing unit and correcting a program clock reference (PCR).

Abstract: Provided is a method for providing a service based on a subscriber level. The method includes the steps of: a) initializing a Data Back-off Start (DBS) value and a Data Back-off End (DBE) value; b) acquiring subscriber information from an external management system; c) acquiring service flow identifier (SFID) and service identifier (SID) information from an object model for quality of service (QoS) based on information on Service Class Name (SCN) of the subscriber acquired in the step b); d) creating manufacturing automation protocol (MAP) according to a priority by grasping the SID information based on the service level and controlling the DBS value and the DBE value of a cable modem (CM); and e) transmitting the created MAP to the cable modem.

Abstract: Provided is a method for securing cable modem (CM) following a Data Over Cable Service Interface Specification (DOCSIS) against physical security attacks. The method includes the steps of: a) classifying information to be stored in the DOCSIS CM based on a requirement degree of confidentiality and anti-alteration; b) storing the information in a non-volatile memory of the DOCSIS CM when the information is absolute confidential information, but processing a mechanism for deleting the information stored in the non-volatile memory in case that attacks by a hacker is sensed; c) storing the information in the non-volatile memory of the DOCSIS CM when the information is middle-level security information; and d) storing the information in a write-once (WO) memory of the DOCSIS CM when the information is absolute anti-alteration information.

Abstract: A programmable error correcting device is disclosed. The programmable error correcting device includes a controller for receiving information about a length of a codeword, an error correcting capacity, whether of not a shortened codeword mode is supported and a total byte number of burst data and outputting a control signal; a preprocessor for dividing input information data by a length of information byte in a codeword and outputting the divided input information data with a valid data indicating signal in response to the control signal input from the controller for an error correcting coding; and a coder for deciding a structure for an error correcting encoding according to the control signal inputted from the controller and performing an error correcting encoding on information data inputted from the preprocessor according to the decided structure.

Abstract: Provided is apparatus and method for transforming cable channel. The apparatus includes a data mixing unit for receiving and mixing a band data and a first broadband data, to thereby generate a second broadband data of a broadband cable channel, and a channel adapting unit for dividing a band data from the second broadband data received through the broadband cable channel, bypassing the second broadband data to a first subscriber apparatus and transmitting the band data to a second subscriber apparatus.

Abstract: Provided is an optical alignment apparatus and method that can enhance the efficiency of optical alignment by using a light source for generating light of a visible wavelength range and lensed fiber and perform optical alignment quickly, precisely and economically. The optical alignment apparatus of the present research includes: a first light source for providing light of a visible wavelength range to perform optical alignment; a second light source providing light of an infrared wavelength range; a micrometer stage for aligning the light outputted from the first light source or the second light source with an active area of a detector; lensed fiber for inputting light into the active area of the detector; an optical alignment confirming means for visually confirming whether the light outputted from the lensed fiber is aligned with the active area of the detector; an image information acquiring means for acquiring image information; and a control means for operating the micrometer stage.

Abstract: The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key (CK) generating unit for generating a CK by receiving a control word (CW) from an external conditional access system (CAS); a key scheduling unit for generating predetermined number of keys (KK)s by receiving the CK from the CK generating unit; a plurality of enciphering units for enciphering the TS transmitted from the first storing unit based on the predetermined number of KKs and the CK; a second storing unit for storing the TS enciphered by the enciphering units and outputting the enciphered TS; and a controlling unit for controlling the multiple enciphering units.

Abstract: Provided is an optical alignment apparatus and method that can enhance the efficiency of optical alignment by using a light source for generating light of a visible wavelength range and lensed fiber and perform optical alignment quickly, precisely and economically. The optical alignment apparatus of the present research includes: a first light source for providing light of a visible wavelength range to perform optical alignment; a second light source providing light of an infrared wavelength range; a micrometer stage for aligning the light outputted from the first light source or the second light source with an active area of a detector; lensed fiber for inputting light into the active area of the detector; an optical alignment confirming means for visually confirming whether the light outputted from the lensed fiber is aligned with the active area of the detector; an image information acquiring means for acquiring image information; and a control means for operating the micrometer stage.

Abstract: A restricted reception device enabling a subscriber receiver to selectively receive broadcasting data transferred via a digital cable broadcasting network, includes: a demultiplexer for receiving broadcasting data and an ECM including a CW from the subscriber receiver, and demultiplexing them, the broadcasting data and the ECM being transferred through an in-band channel; an out-of-band channel signal processor for receiving an EMM from the subscriber receiver, and processing the EMM, the EMM being transferred through an out-of-band channel; a restricted reception processor for descrambling the scrambled broadcasting data using the ECM and the EMM received from the out-of-band channel signal processor; and a remultiplexer for multiplexing the descrambled broadcasting data received from the restricted reception processor, and sending the multiplexed broadcasting data to the subscriber receiver.

Abstract: A package service management system and method in digital cable broadcasting comprises: a host having middleware for receiving broadcast signals of a headend and bidirectional service information, and executing a package application program for providing a package service; a POD for analyzing data, and decoding a package subscription and termination message using an encoded key so as to allow or disallow watching channels; and a headend for defining package-setting information, transmitting it to the host or the POD, generating entitlement test messages on a paid channel, transmitting them to the POD, and transmitting the subscriber's encoded key according to a request by the POD. Therefore, the subscriber can watch TV and remotely subscribe or terminate a paid package service, thereby increasing user's convenience.

Abstract: Provided is a method for constructing and transmitting guidance information for impulse pay-per-view (IPPV) broadcasting service, and a computer-readable recording medium for recording a program that implements the method. The method of the present research includes the step of: inserting an IPPV service descriptor, which is suggested as a standard data structure for transmitting IPPV service purchase guidance information, to an aggregate event information table; and transmitting the aggregate event information table.

Abstract: Disclosed is a PSIP converter which comprises: a protocol data extractor for demultiplexing a terrestrial broadcasting TS or a satellite broadcasting TS, extracting audio/video data and PSIP/PSI data from the terrestrial broadcasting TS and audio/video data and SI/PSI data from the satellite broadcasting TS; a protocol data converter for using the PSIP/PSI data or the SI/PSI data to generate PSIP/PSI data of a corresponding digital cable television broadcasting standard; a protocol data inserter for inserting the digital cable television broadcasting standard PSIP/PSI data into the audio/video data extracted by the protocol data extractor through TS multiplexing, and generating a digital cable broadcasting TS; and a system controller for checking the protocol data extractor, the protocol data converter, and the protocol data inserter, and controlling their operation.