Abstract: A device for coding image information, which is a shape encoder for splitting an image transferred from an image input into an object image and a background image that have predetermined shape information, includes: a boundary block merge block for merging boundary blocks including both the object and background images out of shape information received, by using a boundary block merge technique; a variable length coding block for variable-length-coding the merged boundary blocks received from the boundary block merge block; and a variable length coding table memory for storing variable length coding tables which are used when the merged boundary blocks are variable-length-coded by the variable length coding block.

Abstract: In order to execute a rapid and effective DCT and IDCT and embody DCT and IDCT in one processor, in an inventive DCT/IDCT processor, an input multiplexer selects DCT or IDCT coefficients and transfers the coefficients to a matrix multiplier, and DCT/IDCT deciding unit within the matrix multiplier controls a flow of the DCT and IDCT coefficients. An output multiplexer decides an output of the DCT and the IDCT, to thereby embody the DCT and the IDCT in one processor, and perform the DCT and the IDCT at a high speed by reducing the number of multiplication calculation, namely through a decrease of the calculation number.

Abstract: An apparatus and method of adaptively coding/decoding interlace shape information estimates the amount of motion with respect to the binary alpha block (BAB). A type of the BAB is determined according to the estimated amount of motion. When the BAB falls under a type which needs coding differences between pixel pairs in each line pair comprising an odd and an adjacent even line are calculated and summed up to compute an error of the frame. Differences between pixel pairs in consecutive odd line pairs and differences between pixel pairs in consecutive even line pairs are calculated and summed up to compute an error of individual fields. When the error of the frame is larger than that of the separate fields, field type coding where coding is independently performed with respect to each field is selected. When the error of the separate fields is larger than that of the frame, frame type coding where coding is performed with respect to the frame is selected.

Abstract: There is provided a method of transmitting data between compact control stations using the Ethernet, including a network matching unit generation steps of separately generating the function of a network matching unit of each compact control station according to a data transmission function and data reception function, a data reception step of, when the network matching unit of one of the compact control stations is generated to have the data reception function at the network matching unit generation step, receiving operation maintenance data from the network matching unit of the other compact control station through TCP/IP communication using the Ethernet, and a data transmission step, when the network matching unit of one of the compact control stations is generated to have the data transmission function at the network matching unit generation step, transmitting control data and the operation maintenance data to the network matching unit of the other compact control station through TCP/IP communication using

Abstract: There is provided a method for calculating the call processing capacity of a mobile communication system using an Internet communication network. The present invention calculates and stores the call processing capacity of a mobile communication system using an Internet web browser and database to attain accurate call processing capacity information, thereby obtaining an optimal mobile communication system design. Furthermore, since multiple designers can share information about the calculated call processing capacity through a database, thereby making the call processing capacity information be actively effectively used.

Abstract: A packet data transmitting apparatus includes: a number of nodes for mutually transmitting and receiving packet data; a number of transmitting buffers for storing the packet data received from the nodes; a hardware router disposed between the nodes, for sequentially checking the nodes to find whether each node has the packet data to be transmitted, for reading the packet data from a transmitting buffer of the node to detect an address of a destination node, and for transmitting the packet data stored in the transmitting buffer to the destination node; and a number of receiving buffers for storing the packet data received from the hardware router.

Abstract: There is provided a channel card for extending the coverage area of a base station, which controls GPS reference signals provided to base station modems to extend the coverage area by up to four times a general base station coverage area.

Abstract: The present invention is provided to process more than one level 2 protocols by implementing a signalling link of the level 2 at a message transfer part in a common channel signalling system. Internal devices within a central processing unit and a control function of a signalling link controller are initialized and data of the signalling link controller received at the central processing unit is processed for transmit/receive to/from the upper level. A state of a level 3 receiver buffer within the central processing unit is checked, a primitive of data which was received from a level 3 but not processed is analyzed, and the primitive is performed at the signalling link controller, wherein a plurality of level 2 protocols can be processed.

Abstract: An asynchronous transfer mode adaptation layer (AAL) processing apparatus using a central processing unit in an asynchronous transfer mode (ATM) terminal includes: a physical layer for performing physical functions and supporting universal test and operations physical interface for ATM (UTOPIA); a software segmentation and reassembly interface device (SSID) for storing ATM cells outputted by the physical layer in a double port RAM under the control of a central processing unit and outputting to the physical layer the ATM cells, which have been stored in the double port RAM by the central processing unit, under the control of the central processing unit; a double port RAM for storing the ATM cells depending upon the control of the central processing unit or the SSID; a system memory for temporarily storing the ATM cells of the central processing unit; and a central processing unit, for storing in the double port RAM the user data, produced by reassembly of the ATM cells stored in the double port RAM, for stori

Abstract: A base station transmitted forward power is controlled in such a manner that identifies a mode of an input base station transmitted forward power control command; and controls an attenuation value of an attenuator in a power adjustment part according to a result of the identification so as to gradually increase or decrease a base station transmitted power, thereby effecting the base station transmitted forward power control without deterioration of speech quality and interruption of calls.

Abstract: A method of searching reverse traffic channels in a code division multiple access (CDMA) mobile radio communication system for allowing for acquisition of reverse traffic channels without increase or decrease of size of a search window for traffic channels, the method comprising the steps of: storing an offset by a propagation delay after acquiring a reverse access channel; determining whether or not a pseudonoise (PN) random delay is employed for the reverse access channel and, when the PN random delay is used, calculating the PN random delay using a hash function with a factor of an electronic serial number (ESN) transmitted from a mobile station; computing the stored offset and the PN random delay and setting a new offset to a result of the computing; setting a center of a search window for searching the reverse traffic channel to the new offset and establishing the search window; and searching a reverse traffic channel preamble with the established search window.

Abstract: A predictive coding in a video coding system, which can enhance the coding efficiency by predictively coding DC coefficients of a block to be coded using DC gradients of a plurality of previously coded neighboring blocks. The predictive coefficient is selected according to the difference between the quantized DC gradients (coefficients) of a plurality of neighboring blocks of the block to be coded, and the DC coefficient of the block to be coded is predictively coded by the selected predictive coefficient, thereby enhancing the coding efficiency.

Abstract: The invention relates to a mobile communication system and controlling method thereof for paging and establishing dynamically paging area, which is capable of making paging area dynamically according to position of a receiving mobile station. When a set-up signal is received, the NTP uses identifier of a BTS obtained from the location registration of the mobile station as a key for accessing paging database and accesses paging database by using the key. It makes near cell list using identifier of the BTS of the receiving MS, generates a paging list by extracting BTSs controlled by the same BSC from the near cell list and sends the paging list to each corresponding BTS. The percentage of paging success increases and the time of call connection reduce by establishing a paging area dynamically according to location of the receiving MS and paging in the dynamical paging area.

Abstract: A compact disk auto-exchanger and a method thereof which are capable of more rapidly and accurately moving a compact disk arranged in a magazine to a compact disk player, and loading/unloading the compact disk arranged in a compact disk mechanism into/from the magazine within a limited space.

Abstract: A duplexing system and method for writing a back-up list in which a back-up process is substituted for a process having an error while performing plural processes. Memory space to store a back-up order list is allotted to two bytes per process. A number of the leading order process is stored in the first byte, whereas a number of following order process is stored in the second byte. Further, the top priority bit or the last bit of each byte of memory space in which the process to be backed-up is allotted is set, and thus the existence of a registration is displayed. Further, if error an occurs at plural processes, a non back-up process generates a back-up order list according to time sequence of error generation. If an error occurs at a process of another top priority order while operating a back-up of a back-up process, the process is registered at the leading order list.

Abstract: Semiconductor memory includes a plurality of cell blocks, with each cell block including a plurality of memory cells. The refresh controller refreshes a refresh defect cell in one of the cell blocks when a memory cell in a different one of the cell blocks and designated by a same address as the refresh defect cell is refreshed.

Abstract: A method of adjusting a size of a base transceiver station (BTS) search window for adjusting the size of the search window, which the BTS uses to acquire a signal of a mobile station, according to a service radius and modifying a location of the search window, thereby improving efficiency in acquiring an access signal and controlling a service area. The method comprises the steps of: determining a service radius in which the BTS can acquire an access signal of a mobile station; reading a size of a preamble search window and a preamble search range corresponding to the determined service radius from a table used for determination of the size of the search window, the table being stored in a database; and modifying the size of the search window by changing search window parameters of the BTS system according to the read search range and the size of the search window for the preamble.

Abstract: An equalizer for a digital video disk player which is capable of obtaining a 5-tap transversal filter effect by providing a 3-tap transversal filter, reducing the number of elements, and obtaining a reliable 5-tap frequency characteristic. The equalizer includes first through third buffers for preventing a jittering problem of an RF signal due to a delay time, a 2T delay unit for 2T-delaying an output signal from the first buffer, a 4T delay unit for 4T-delaying an output signal from the third buffer, a summing unit for summing output signals from the first and third buffers with an output signal from the second buffer, and a low pass filter for allowing the summed output signals from the summing unit to have an equalizer characteristic suggested in the DVDP specification.

Abstract: A method of selecting a vocoder in a CDMA mobile communication system, includes the steps of: indexing shelves, slots, and vocoders, before sequentially selecting a shelf and a slot according to the order of index, and, after detecting a frame offset of a present call, calculating a number of frame offsets identical with the frame offset of the present call contained in the selected slot; and comparing the number of the frame offsets, which are identical with the present call's frame offset and contained in the slot sequentially selected, with numbers of the identical frame offsets contained in other slots, and selecting a slot having the fewest frame offsets identical with the present call's frame offset.

Abstract: An ATM cell boundary identification apparatus and method.