Abstract: An electronic apparatus, having functions on which use limitations can be imposed, in which a variety of functions are loaded on the electronic apparatus by hardware circuitry or by computer programs. Use of a certain function(s) is limited by setting a function limiting flag to “1”, provided that an other function(s) are usable within a period of a preset number of days of possible test use. An application is made from the apparatus to a key issuing source for purchasing usable functions. The key issuing source then issues a limitation removing key. The limitation removing key may be acquired from the key issuing source by a mobile phone terminal and transmitted to the apparatus by infrared ray communication. The apparatus rewrites the function limiting flag by this limitation removing key. If the number of days of actual test use has reached the number of days of possible test use, the CPU of the apparatus does not carry out the function(s) the function limiting flag of which is “1”.

Abstract: An electronic apparatus, having functions on which use limitations can be imposed, in which a variety of functions are loaded on the electronic apparatus by hardware circuitry or by computer programs. Use of a certain function(s) is limited by setting a function limiting flag to “1”, provided that an other function(s) are usable within a period of a preset number of days of possible test use. An application is made from the apparatus to a key issuing source for purchasing usable functions. The key issuing source then issues a limitation removing key. The limitation removing key may be acquired from the key issuing source by a mobile phone terminal and transmitted to the apparatus by infrared ray communication. The apparatus rewrites the function limiting flag by this limitation removing key. If the number of days of actual test use has reached the number of days of possible test use, the CPU of the apparatus does not carry out the function(s) the function limiting flag of which is “1”.

Abstract: An electronic apparatus, having functions on which use limitations can be imposed, in which a variety of functions are loaded on the electronic apparatus by hardware circuitry or by computer programs. Use of a certain function(s) is limited by setting a function limiting flag to “1”, provided that an other function(s) are usable within a period of a preset number of days of possible test use. An application is made from the apparatus to a key issuing source for purchasing usable functions. The key issuing source then issues a limitation removing key. The limitation removing key may be acquired from the key issuing source by a mobile phone terminal and transmitted to the apparatus by infrared ray communication. The apparatus rewrites the function limiting flag by this limitation removing key. If the number of days of actual test use has reached the number of days of possible test use, the CPU of the apparatus does not carry out the function(s) the function limiting flag of which is “1”.

Abstract: According to the present invention, there is provided an editing device for editing a plurality of channel data recorded on a record medium having a unit of writing data determined to be a predetermined data unit length, in which in performing an editing processing with respect to specific channel data having a length that is equal to or shorter than the predetermined data unit length designated by a user, the predetermined data unit length including the specific channel data is reproduced and stored to a memory, the editing operation is performed on the memory and the predetermined data unit length after the editing operation is read from the memory and is again recorded on the record medium whereby the editing processing such as copying, moving, exchanging, erasing and the like can be performed with respect to the short data of the predetermined data unit length or shorter.

Abstract: According to the present invention, there is provided an editing device for editing a plurality of channel data recorded on a record medium having a unit of writing data determined to be a predetermined data unit length, in which in performing an editing processing with respect to specific channel data having a length that is equal to or shorter than the predetermined data unit length designated by a user, the predetermined data unit length including the specific channel data is reproduced and stored to a memory, the editing operation is performed on the memory and the predetermined data unit length after the editing operation is read from the memory and is again recorded on the record medium whereby the editing processing such as copying, moving, exchanging, erasing and the like can be performed with respect to the short data of the predetermined data unit length or shorter.