Abstract: An electronic device includes a main board, a ground plate, at least one antenna, and at least one cable. The ground plate is disposed on the main board and include at least one cable containing groove containing at least a part of the at least one cable. The at least one antenna is disposed on the ground plate and electrically connected to the ground plate. The at least one cable electrically connects the at least one antenna with the main board and is at least partially disposed in the at least one cable containing groove.

Abstract: An electronic device includes a main board, a ground plate, at least one antenna, and at least one cable. The ground plate is disposed on the main board and include at least one cable containing groove containing at least a part of the at least one cable. The at least one antenna is disposed on the ground plate and electrically connected to the ground plate. The at least one cable electrically connects the at least one antenna with the main board and is at least partially disposed in the at least one cable containing groove.

Abstract: An apparatus for converting pulse code modulation (PCM) signals in a telecommunication system between two different modulation standards. In the apparatus, a channel selector generates a channel select signal for identifying at least one channel of the multiple channels containing input digital signals modulated by said one of said two different modulation standards. A first codec demodulates a signal on a channel designated by the channel select signal which is modulated by the first modulation standard, into an analog signal to be supplied to a second codec, which modulates the converted analog signal input into a digital signal using the second modulation standard. The reverse process is executed in a similar manner.

Abstract: A multi-sector in-building repeater, including: a master transmitting unit for receiving multi-sector signals of a carrier from a base station, mixing the multi-sector signals with different transmission intermediate frequency signals, and outputting mixed multi-sector signals to a same transmission line; a plurality of slave transmitting units for extracting sector signals assigned to the multi-sector signals from the master transmitting unit, converting extracted sector signals into high frequency signals, and transmitting converted high frequency signals through an antenna to a mobile terminal.

Abstract: A data translation apparatus is between a base station using an Internet protocol (IP) and a cell controller using an asynchronous transfer mode (ATM) data in a mobile communication system.

Abstract: A multi-sector in-building repeater, including: a master transmitting unit for receiving multi-sector signals of a carrier from a base station, mixing the multi-sector signals with different transmission intermediate frequency signals, and outputting mixed multi-sector signals to a same transmission line; a plurality of slave transmitting units for extracting sector signals assigned to the multi-sector signals from the master transmitting unit, converting extracted sector signals into high frequency signals, and transmitting converted high frequency signals through an antenna to a mobile terminal.

Abstract: A data translation apparatus is between a base station using an Internet protocol (IP) and a cell controller using an asynchronous transfer mode (ATM) data in a mobile communication system.

Abstract: A digital trunk circuit supporting multiple trunk circuits assembled in a single board. A trunk selector capable of being operated by a user, outputs trunk select information for selecting one of the multiple trunk circuits according to an operation of the user. A read only memory (ROM) stores drive programs for the respective trunk circuits. A framer and line interface serves as a T1 framer or an E1 framer according to a register value, and includes line interface nodes having a connection for the T1 framer or the E1 framer. A receiving transformer connected to an office line, receives a signal incoming from the office line. A transmission transformer connected to the office line, transmits a signal to the office line.

Abstract: A synchronous clock controller for a digital exchange accommodates installation of a plurality of office line cards. A priority encoder encodes priority information signals respectively provided from the office line cards, and generates a selection signal indicating one of the office line cards having a highest priority among the office line cards in dependence upon the priority information signals. A clock selector receives office line clock signals respectively provided from the office line cards, and outputs a selected one of the office line clock signals provided from the office line card indicated by the selection signal. A digital phase synchronizing circuit phase synchronizes the selected office line clock signal with an internal reference clock signal, and generates a reference synchronization clock signal and a bit synchronization clock signal in response to the phase synchronizing.