Kt Corporation

Skhynix Inc.

Yonsei University

Sang-Woo Han

Myeongjin Kim

Eui-Young Chung

Kyung-Sul Kim

A semiconductor device includes a plurality of chips including first and second chips, each of the first and second chips including a first input terminal receiving a first token input signal, a first output terminal outputting a first token output signal, a second input terminal receiving a second token input signal, and a second output terminal outputting a second token output signal. The first and second chips are coupled to each other in a bi-directional ring structure such that the first output terminal of the first chip is coupled to the first input terminal of the second chip and the second output terminal of the second chip is coupled to the second input terminal of the first chip. Each of the first and second chips performs a corresponding peak zone operation according to the first token input signal and the second token input signal.

Semiconductor device managing power budget using bi-directional ring structure and operating method thereof

The present invention relates to a system for transmitting a multimedia message to a roamed multimedia message receiver, and a method thereof. In the method, when the multimedia message is transmitted from a first mobile communication network to a multimedia message receiver that has roamed from the first mobile communication network to a second mobile communication network, location information of the multimedia message receiver is determined according to a request for transmission of the multimedia message. A roaming state of the multimedia message is determined based on the location information of the multimedia message receiver When it is determined that the multimedia message receiver has roamed, a notification message of a pull method is transmitted to the multimedia message receiver to determine whether the multimedia message receiver accepts receipt of the multimedia message. In addition, when a response of acceptance is received from the multimedia message receiver, the multimedia message is transmitted to the multimedia message receiver.

Method for transmitting multimedia message to roamed multimedia message receiver and system thereof

A multimedia message service method and a server therefor are disclosed. In one embodiment, the server i) allows a broadcast transmitting server to receive a request of transmitting a position-based multimedia message from a content providing server, ii) collects information related to a base station covering an area to which the requested position-based multimedia message is desired to be transmitted, iii) transfers the position-based multimedia message to a multimedia transmitting equipment, iv) collects address information of the position-based multimedia message from the multimedia transmitting equipment and v) transmits the collected address information in a form of a cell broadcast service message to a receiving mobile communication terminal according to the information related to the base station. According to one embodiment, a large-sized multimedia message can be easily provided to a plurality of mobile communication terminals located in an area by using a cell broadcasting service.

Growing community of inventors

Seoul, South Korea

Sang-Woo Han