Abstract: Provided are a data communication method using a secure element and an electronic system adopting the same. The data communication method includes: exchanging certificate information between an application processor of an electronic device and a secure element; setting up a secure channel through mutual authentication between the application processor and the secure element by using a public key and a secret key after the exchange of the certification information; and performing data communication between the application processor and the secure element through the secure channel.

Abstract: In a method of controlling an electronic device using a wearable device, the electronic device is paired with the wearable device. A cryptographic key, which corresponds to the electronic device, is stored in a secure storage device included in the wearable device. A distance between the wearable device and the electronic device is estimated by the wearable device. An unlock signal including the cryptographic key, which is stored in the secure storage device, is transmitted from the wearable device to the electronic device when the estimated distance is smaller than a threshold distance. The electronic device is unlocked based on the unlock signal.

Abstract: A method for communicating medical data includes forming a secure channel between a first medical device and a second medical device connected to each other through a network on the basis of first authentication information of the first medical device and second authentication information of the second medical device; encrypting medical data that is obtained by the first medical device using a secure circuit that is provided in the first medical device; and transmitting the encrypted medical data to the second medical device through the secure channel.

Abstract: A watch including a dial pad, a circular movement disposed adjacent to the dial pad, a circular printed circuit board (PCB) having an inner diameter and an outer diameter, the PCB including a hole defined as the inner diameter and a plurality of integrated circuits (ICs) disposed in a region between the inner diameter and the outer diameter, in which the movement having a diameter smaller than the inner diameter is shaped and sized to fit into the hole, a first battery disposed adjacent to the PCB and supplies a first operating voltage only to the PCB, and a case dimensioned and shaped to receive the dial pad, the movement, the PCB, and the first battery.

Abstract: A method of data transfer in an electronic device including a secure module, which includes a processor and a secure element, an application processor, and a sensor, may include: switching an operation mode of the processor to a bypass mode; performing a cross-authentication, by the application processor and the secure element; generating a session key, by the application processor and the secure element, when the cross-authentication is succeeded; switching the operation mode of the processor to a normal mode; encrypting, by the secure module, sensing data provided by the sensor using the session key; transferring the encrypted sensing data from the processor to the application processor; and/or acquiring, by the application processor, the sensing data by decrypting the encrypted sensing data using the session key.

Abstract: An emergency notification system and server are provided. The emergency notification system includes a wearable device that senses biosignals of a user wearing the wearable device and captures environment data; and a mobile device that periodically receives at least one of the biosignals and the environment data from the wearable device, determines a distance between the mobile device and the wearable device, periodically transmits the at least one of the biosignals and the environment data to a server, requests the wearable device to provide the at least one of the biosignals and the environment data, and transmits the received at least one of the biosignals and the environment data to the server.

Abstract: A watch including a dial pad, a circular movement disposed adjacent to the dial pad, a circular printed circuit board (PCB) having an inner diameter and an outer diameter, the PCB including a hole defined as the inner diameter and a plurality of integrated circuits (ICs) disposed in a region between the inner diameter and the outer diameter, in which the movement having a diameter smaller than the inner diameter is shaped and sized to fit into the hole, a first battery disposed adjacent to the PCB and supplies a first operating voltage only to the PCB, and a case dimensioned and shaped to receive the dial pad, the movement, the PCB, and the first battery.

Abstract: A method for updating software includes verifying an update for first software that drives a security execution environment in a non-security execution environment, updating the first software by use of a first image of the first software update stored in the non-security execution environment, verifying an update for second software that drives a security device controlled by the security execution environment, in the security execution environment, and updating the second software by use of a second image of the second software update stored in the security execution environment.

Abstract: Provided are a data communication method using a secure element and an electronic system adopting the same. The data communication method includes: exchanging certificate information between an application processor of an electronic device and a secure element; setting up a secure channel through mutual authentication between the application processor and the secure element by using a public key and a secret key after the exchange of the certification information; and performing data communication between the application processor and the secure element through the secure channel.

Abstract: A method of data transfer in an electronic device including a secure module, which includes a processor and a secure element, an application processor, and a sensor, may include: switching an operation mode of the processor to a bypass mode; performing a cross-authentication, by the application processor and the secure element; generating a session key, by the application processor and the secure element, when the cross-authentication is succeeded; switching the operation mode of the processor to a normal mode; encrypting, by the secure module, sensing data provided by the sensor using the session key; transferring the encrypted sensing data from the processor to the application processor; and/or acquiring, by the application processor, the sensing data by decrypting the encrypted sensing data using the session key.

Abstract: A method for communicating medical data includes forming a secure channel between a first medical device and a second medical device connected to each other through a network on the basis of first authentication information of the first medical device and second authentication information of the second medical device; encrypting medical data that is obtained by the first medical device using a secure circuit that is provided in the first medical device; and transmitting the encrypted medical data to the second medical device through the secure channel.

Abstract: An emergency notification system and server are provided. The emergency notification system includes a wearable device that senses biosignals of a user wearing the wearable device and captures environment data; and a mobile device that periodically receives at least one of the biosignals and the environment data from the wearable device, determines a distance between the mobile device and the wearable device, periodically transmits the at least one of the biosignals and the environment data to a server, requests the wearable device to provide the at least one of the biosignals and the environment data, and transmits the received at least one of the biosignals and the environment data to the server.

Abstract: In a method of controlling an electronic device using a wearable device, the electronic device is paired with the wearable device. A cryptographic key, which corresponds to the electronic device, is stored in a secure storage device included in the wearable device. A distance between the wearable device and the electronic device is estimated by the wearable device. An unlock signal including the cryptographic key, which is stored in the secure storage device, is transmitted from the wearable device to the electronic device when the estimated distance is smaller than a threshold distance. The electronic device is unlocked based on the unlock signal.

Abstract: A method is for displaying a schedule in a wearable device is provided. The method includes displaying a watch screen on a display of the wearable device and displaying an event display icon corresponding to a scheduled event on the watch screen.

Abstract: A wireless charging system includes a steering wheel including a wireless power transmission device that is configured to wirelessly transmit a wireless power signal based on a magnetic resonance technique or based on a magnetic induction technique and at least one wearable device including a wireless power reception device that is configured to wirelessly receive the wireless power signal to charge a battery included in the wearable device based on the wireless power signal.

Abstract: Provided is a method and system generating an execution file. The method includes determining number-of-calls information for a number of functions and then generating the execution file by locating the functions based on the number-of-calls information.

Abstract: Provided is a method and system generating an execution file. The method includes determining number-of-calls information for a number of functions and then generating the execution file by locating the functions based on the number-of-calls information.

Abstract: A bonding pad in a semiconductor device can include a conductive plug pattern on a conductive layer, where the conductive layer includes a conductive material and a dummy pattern surrounded by the conductive material. Related methods are also disclosed.