as illustrated in fig2 the masked registration system of the present invention works in conjunction with a telecommunication system such that an internet content provider is furnished with a masked identification code ( mid ) by the telecommunication system . as shown in fig3 when a user begins using the system of the present invention by gaining an access to a radio system . upon completion of the password verification , an approval signal is transmitted by the system operator , thereby enabling the user to select an internet content provider . thereafter , the user is connected to the internet content provider by the system operator on behalf of the user such that the internet content provider is furnished by the system operator with the user &# 39 ; s mid which is generated by a masked identification code generator ( not shown in the drawing ). upon completion of providing the user &# 39 ; s mid to the content provider , the system operation remains on standby . when the entry of data by the user is completed , the transaction is closed . the content provider is once again on standby . the operational flow of the system operator is explicitly described hereinafter with reference to fig4 - 6 , in which the verification of rid by the system operator is omitted . as the user has selected a content provider , the masked identification code generator begins looking for an mid comparative to a rid which is kept in the telecommunication system user database . if a comparative mid is found , the user is automatically connected to the content provider . in the meantime , the content provider is provided with the user &# 39 ; s mid by the system operator . if no comparative mid is found , such fact is displayed to alert the user to select an mid of his or her own choice . the selected mid is then recorded in the telecommunication user database . in the meantime , the user is connected to the content provider . the selected mid is also transmitted to the content provider . in the event that the user does not wish to select an mid , the system operator selects the mid on behalf of the unwilling user . the selected mid is recorded in the telecommunication user database and is transmitted to the content provider . such a service mode as described above is relatively adapted to a situation in which a user with only one mid is involved . as shown in fig5 if a user selects an mid at the time when the user picks a content provider , the mid is then recorded in the telecommunication user database to serve as an identification code of the user in relation to the content provider . a user may select various mids in relation to different content providers . each time when the mid is recorded in the telecommunication user database , the mid which was already recorded in the database in a previous occasion , the mid is renewed . the user may use the mid which is already recorded in the database . if the user does not select the mid and does not have an identification code relative to the content provider , the mid generator generates an mid , which may or may not be recorded in the database depending on the user &# 39 ; s desire . this process flow is better adapted to a situation in which a plurality of mids are compared with one rid . however , this process flow may be applied to a one - to - one mode in which a new rid - mid description is provided . as shown in fig6 the masked identification code generator does not generate the mid . in the event that the mid is not found , the selection mode of mid by the user is adapted . if the user refuses to select , the process is repeated in the loop to force the user to make a selection or to drop out of the system . as shown in fig7 the process flow is adapted to a situation in which the service is provided by the content provider on a non - membership basis . the data * 1 refer to mid , service date , time , description , etc . the so - called new data * 2 , * 3 , * 4 , such as user &# 39 ; s age , academic background , hobby , address , website , etc . * 5 so - called new data entry is derived from the original data of the system operator upon authorization of the user , or from the on - line input of data . * 2 , * 3 , * 4 , * 5 , refer to the procedures after service . as shown in fig8 the process flow is adapted to a situation in which the service is provided by the content provider on a membership basis . * 1 , * 2 , * 3 , * 4 , * 5 are similar in definition as those of fig7 . these procedures are done after the service . if the membership is checked by the system operator , rid or mid is used . if the user is a member , the user is connected to the content provider . if the user is not a member , the user is also connected to the content provider . thereafter , the procedures of membership entry , service , etc . are done by the content provider . the membership verification procedure is done by the content provider . as shown in fig9 and 10 , additional data are provided such that the data of the telecommunication system operator are provided to is the content provider , as shown in fig9 and that the additional data are provided by the user by the on - line input of data , as shown in fig1 . a combination of both methods may be used . the input of additional data may be prohibited . the data of the user may be directly provided by the system , such as the user &# 39 ; s mobile phone number , website , etc ., upon authorization of the user . such authorization must be clearly stated in the agreement between the user and the content provider . in light of the masked identification code registration system of the present invention , the personal data of a user are duly protected . in addition , the masked identification code registration system simplifies the operating flow between the content provider and the system operator . for example , the verification and the input of additional data are simplified . the present invention also provides a masked registration method , which is described hereinafter . when a user wishes to enter a content provider via a telecommunication system , the system operator makes use of a masked identification code generator to generate a masked identification code in conjunction with the telecommunication user database of the telecommunication system . in the meantime , the user is connected to the content provider , with the masked identification code being transmitted to the content provider to serve as the user &# 39 ; s identification code . the telecommunication system and the system operator may be the same corporation or different corporations , preferably the former . the mode of forming mid , the relationship between mid and rid , the rid verification , and the membership verification are the same as those which are described with reference to fig2 - 10 . `