Abstract: An information processing terminal is provided with a data acquiring means for reading data from an external recording medium; a program storing means for storing a plurality of application programs; a program executing means for executing the stored application programs; and a program selecting means for selecting the application program to be executed by the program executing means. The program selecting means selects the application program to be executed from the programs stored in the program storing means, corresponding to the data acquired through the data acquiring means, and processes the data acquired through the data acquiring means by the application program selected by the program selecting means.

Abstract: A software defined radio device and a download server store a plurality of common keys in common key data. The download server arbitrarily determines a common key from the common key data and conveys information identifying the common key to be used to the software defined radio device. An authenticator of the software defined radio device identifies a common key from the common key data using the information identifying the common key, authenticates using the common key, and performs subsequent communications using the common key. When sending software, a hash value is attached for confirming the security. A device ID of the software defined radio device is also attached to data for confirming which software defined radio device receives the software. The software is securely downloaded by a common key encryption having smaller processing requirements than those of a public key encryption.

Abstract: A software defined radio device and a download server store a plurality of common keys in common key data. The download server arbitrarily determines a common key from the common key data and conveys information identifying the common key to be used to the software defined radio device. An authenticator of the software defined radio device identifies a common key from the common key data using the information identifying the common key, authenticates using the common key, and performs subsequent communications using the common key. When sending software, a hash value is attached for confirming the security. A device ID of the software defined radio device is also attached to data for confirming which software defined radio device receives the software. The software is securely downloaded by a common key encryption having smaller processing requirements than those of a public key encryption.

Abstract: An information processing terminal is provided with a data acquiring means for reading data from an external recording medium; a program storing means for storing a plurality of application programs; a program executing means for executing the stored application programs; and a program selecting means for selecting the application program to be executed by the program executing means. The program selecting means selects the application program to be executed from the programs stored in the program storing means, corresponding to the data acquired through the data acquiring means, and processes the data acquired through the data acquiring means by the application program selected by the program selecting means.

Abstract: It is an object of the present invention to provide a dimer diol derivative and a composition containing the dimer diol derivative which have an excellent water-holding property, an excellent pigment dispersion property and further a high level of safety. The dimer diol derivatives according to the present invention is a dimer diol derivative represented by the following chemical formula 19.

Abstract: It is an object of the present invention to provide a dimer diol derivative and a composition containing the dimer diol derivative which have an excellent water-holding property, an excellent pigment dispersion property and further a high level of safety.