Abstract: There is provided a communication chip package integrating an antenna and a heat dissipation ground. In the integrated package according to an embodiment, a heat dissipation ground is coupled to a high frequency communication chip package, an antenna patch is directly disposed on an upper portion of a mold of a ceramic material, changes are made to the structure of the ceramic mold to minimize a wire bonding length to a communication chip, a capacitive power feeding method is applied through a sidewall of the ceramic mold, and heat is discharged through a lower portion of the package and also through a PCB or an additional heat dissipation structure of a lower portion of the PCB. Accordingly, an insertion loss may be minimized and an effect of heat dissipation may be maximized.

Abstract: Apparatuses and methods of transmitting a signal with reduced interference in a femto base station including a plurality of antennas having different radiation patterns are provided. A method includes transmitting common information through the plurality of antennas having the different radiation patterns; receiving feedback information corresponding to the common information; analyzing the feedback information; temporarily selecting one of the plurality of antennas as a transmission antenna, based on a result of the analyzing; and transmitting user information through the transmission antenna.

Abstract: In a Packet Switched Data Network (PSDN) having a Local Area Network (LAN) interface, an auxiliary controller controls all protocols of the LAN interface through an interrupt routine and transmits a state-monitoring signal after processing the protocols. A main controller compares a transmitting period of the state-monitoring signal transmitted from the auxiliary controller with a critical time and changes a state of the auxiliary controller from a usable state to an unusable state or from the unusable state to the usable state in accordance with a result of the comparison. As a result, even when traffic is congested in a certain LAN interface or a certain LAN interface is infected with a virus to such an extent that the interface fails to operate, an overload in a main processor is prevented.

Abstract: A method for optimizing voice quality in an analog trunk is provided. The method includes setting a loop parameter to optimize an Echo Return Loss (ERL) property for a loop distance, generating a tone according to a value of the loop parameter and measuring ERL values from the tone, and setting a loop parameter value corresponding to a smallest ERL value of the measured ERL values, as an optimized loop parameter.

Abstract: In a Packet Switched Data Network (PSDN) having a Local Area Network (LAN) interface, an auxiliary controller controls all protocols of the LAN interface through an interrupt routine and transmits a state-monitoring signal after processing the protocols. A main controller compares a transmitting period of the state-monitoring signal transmitted from the auxiliary controller with a critical time and changes a state of the auxiliary controller from a usable state to an unusable state or from the usable state to the unusable state in accordance with a result of the comparison. As a result, even when traffic is congested in a certain LAN interface or a certain LAN interface is infected with a virus to such an extent that the interface fails to operate, an overload in a main processor is prevented.

Abstract: A circuit and a method of indicating the operation of a backup battery used in a communication device use a sensing circuit. The sensing circuit includes a diode connected in the forward direction between the communication device and the backup battery, for forming a current path from the communication device to the backup battery. A photocoupler connects in the forward direction between the backup battery and the communication device, for forming a current path from the backup battery to the communication device and sensing an output voltage from the backup battery. When the backup battery is operated, such a situation is sensed and the user is informed.

Abstract: Provided are a method and apparatus for providing and using content advisory (CA) information on Internet contents. A method of providing CA information by using a CA information server, includes receiving a request for the CA information on a content, from an Internet Protocol television (IPTV); searching for CA information on the content; and transmitting the found CA information to the IPTV. A method of using CA information when an IPTV reproduces a content not having the CA information, according to the present invention, includes transmitting a request for CA information, to a CA information server; receiving the CA information from the CA information server; analyzing the CA information; and applying the CA information.