Abstract: Disclosed is a mobile communication terminal having a subscriber identity module (SIM) card. The mobile communication terminal includes a memory unit for storing use-history information of the SIM card inserted into the mobile communication terminal according to a subscriber identity number of the inserted SIM card, and a controller for determining the subscriber identity number of the inserted SIM card, determining whether a predetermined storage area corresponding to the subscriber identity number exists in the memory unit, and generating the predetermined storage area in the memory unit when the predetermined storage area does not exist in the memory unit. Further, it is possible to search the use-history information stored in a storage area corresponding to the subscriber identity number of each SIM card carried by a user. Therefore, the security for the use-history information of the SIM card can be ensured.

Abstract: A mobile terminal for providing a mobile service and a method for storing and finding a phone number using the mobile terminal. The mobile terminal stores and manages country code information, a mobile service subscriber's registration information, and mobile service usage history information; automatically generates a country code of a country where the mobile terminal is located using the mobile service subscriber's registration information and mobile service usage history information; and executes a phone number storage command or a phone number search command using the country code. Where an international roaming service is executed by a user's moving from one country to another country, the mobile terminal can automatically generate a country code or store an arbitrary phone number. Thus, there is no need for mobile service users to manually enter a country code in their mobile terminal when roaming service is executed.

Abstract: A mobile terminal for providing a mobile service and a method for storing and finding a phone number using the mobile terminal. The mobile terminal stores and manages country code information, a mobile service subscriber's registration information, and mobile service usage history information; automatically generates a country code of a country where the mobile terminal is located using the mobile service subscriber's registration information and mobile service usage history information; and executes a phone number storage command or a phone number search command using the country code. Where an international roaming service is executed by a user's moving from one country to another country, the mobile terminal can automatically generate a country code or store an arbitrary phone number. Thus, there is no need for mobile service users to manually enter a country code in their mobile terminal when roaming service is executed.

Abstract: A mobile terminal for providing a mobile service and a method for storing and finding a phone number using the mobile terminal. The mobile terminal stores and manages country code information, a mobile service subscriber's registration information, and mobile service usage history information; automatically generates a country code of a country where the mobile terminal is located using the mobile service subscriber's registration information and mobile service usage history information; and executes a phone number storage command or a phone number search command using the country code. Where an international roaming service is executed by a user's moving from one country to another country, the mobile terminal can automatically generate a country code or store an arbitrary phone number. Thus, there is no need for mobile service users to manually enter a country code in their mobile terminal when roaming service is executed.

Abstract: Disclosed is a mobile communication terminal having a subscriber identity module (SIM) card. The mobile communication terminal includes a memory unit for storing use-history information of the SIM card inserted into the mobile communication terminal according to a subscriber identity number of the inserted SIM card, and a controller for determining the subscriber identity number of the inserted SIM card, determining whether a predetermined storage area corresponding to the subscriber identity number exists in the memory unit, and generating the predetermined storage area in the memory unit when the predetermined storage area does not exist in the memory unit. Further, it is possible to search the use-history information stored in a storage area corresponding to the subscriber identity number of each SIM card carried by a user. Therefore, the security for the use-history information of the SIM card can be ensured.

Abstract: A mobile terminal for providing a mobile service and a method for storing and finding a phone number using the mobile terminal. The mobile terminal stores and manages country code information, a mobile service subscriber's registration information, and mobile service usage history information; automatically generates a country code of a country where the mobile terminal is located using the mobile service subscriber's registration information and mobile service usage history information; and executes a phone number storage command or a phone number search command using the country code. Where an international roaming service is executed by a user's moving from one country to another country, the mobile terminal can automatically generate a country code or store an arbitrary phone number. Thus, there is no need for mobile service users to manually enter a country code in their mobile terminal when roaming service is executed.

Abstract: An electronic circuit (100) for reducing electromagnetic interference includes a plurality of circuit elements (130, 140, 150) to which a set of bussed logic signals (343) generated by a set of first circuits (342) is distributed by a logic clock (120). The electronic circuit (100) further includes a plurality of cascaded busses (355, 135, 335) including a last cascaded bus (335) having a last enablement phase. Each of the plurality of cascaded busses (355, 135, 335) couples a set of amplified logic signals (355, 135, 335) from one of the plurality of circuit elements (358, 359, 336) to another one of the plurality of circuit elements (359, 336, 322). The set of amplified logic signals (355, 135, 335) of each of the plurality of cascaded busses is enabled during an enable period (351, 352, 330) which lasts beyond an end of the last enablement phase.