Abstract: A cradle for use with a portable electronic appliance. The cradle includes a frame, including a mounting portion in which the portable electronic appliance is mounted, a temperature sensor to measure a temperature around the portable electronic appliance, a fan to cool down the portable electronic appliance, a power supplying unit to supply electric power to the fan, and a controller. The controller drives the fan when the temperature measured by the temperature sensor is determined to be equal to or higher than a predetermined temperature according to measurements of the temperature sensor.

Abstract: A locking apparatus including a portable terminal having a terminal control section and a bottom plate, wherein the bottom plate includes a first connection terminal connected to the terminal control section and a locking hole; and a cradle having a seating portion, on which the portable terminal is seated, a cradle control section, a second connection terminal located in a position corresponding to the first connection terminal and connected to the cradle control section, and a locking member located in the seating portion in a position corresponding to the locking hole, wherein the locking member is inserted into the locking hole and rotates based on locking member rotation information.

Abstract: The present invention relates to a finite field multiplier used for implementing an encrypting algorithm circuit, thereby minimizing power consumption and circuit area in implementing the finite field multiplier with a LFSR (Linear Feedback Shift Register) structure. The Finite field multiplier of the present invention is an operator performing a modular operation on the multiplication result of two data represented on a polynomial basis in a Galois Field into an irreducible polynomial. The LFSR structure is a serial finite field multiplication structure, and has a merit over an array structure and a hybrid structure in application to systems that are limited in size and power due to its simplicity of circuits and also its capability of being implemented in a small size.

Abstract: A locking apparatus including a portable terminal having a terminal control section and a bottom plate, wherein the bottom plate includes a first connection terminal connected to the terminal control section and a locking hole; and a cradle having a seating portion, on which the portable terminal is seated, a cradle control section, a second connection terminal located in a position corresponding to the first connection terminal and connected to the cradle control section, and a locking member located in the seating portion in a position corresponding to the locking hole, wherein the locking member is inserted into the locking hole and rotates based on locking member rotation information.

Abstract: The present invention relates to a finite field multiplier used for implementing an encrypting algorithm circuit, thereby minimizing power consumption and circuit area in implementing the finite field multiplier with a LFSR (Linear Feedback Shift Register) structure. The Finite field multiplier of the present invention is an operator performing a modular operation on the multiplication result of two data represented on a polynomial basis in a Galois Field into an irreducible polynomial. The LFSR structure is a serial finite field multiplication structure, and has a merit over an array structure and a hybrid structure in application to systems that are limited in size and power due to its simplicity of circuits and also its capability of being implemented in a small size.

Abstract: An arrangement for safely keeping a stylus as the input unit in the housing of a palm-sized computer contains a guide opening formed in one side of the housing, a stylus holding channel extending from the guide opening towards the inside of the housing for holding the stylus inserted through the guide opening, the cross section of the stylus holding channel being designed to snugly receive the stylus, at least a groove formed on the circumference of the stylus, a resilient strip formed integrally with the inside of the stylus holding channel by cutting the wall of the stylus holding channel, the resilient strip elongated in the direction of the stylus holding channel and having a free end, and a hook projected from the free end of the resilient strip towards the inside of the stylus holding channel, wherein the hook may engage the groove to safely keep the stylus inserted into the stylus holding channel.

Abstract: A connector assembly for electrically connecting a first and a second electronic unit, comprises a plug provided in the first electronic unit to have a plurality of spring pins and a second rigid pin, the plug be mounted in a plug housing, and a socket provided in the second electronic unit to have a plurality of first pin contacts corresponding to the spring pins and a second pin contact with a hole for receiving the second rigid pin, whereby the spring pins resiliently contact respective ones of the first pin contacts with the second rigid pin received by the hole of the second pin contact, or are obstructed by the second rigid pin from contacting the first pin contacts according as the plug is correctly inserted into the socket or not.