Patent ID: 6961579

Claim:
A control system for at least one wireless communications terminal for controlling a function of said at least one wireless communications terminal, said system comprising: a terminal control device; and said at least one wireless communications terminals; wherein said terminal control device comprises: a control data generation section operable to generate control data including control target information to specify a terminal of said at least one wireless communications terminal, and function state change information about a change made in a function state of the terminal of said at least one wireless communications terminal; and a transmitting section operable to transmit the control data generated by said control data generation section to said at least one wireless communications terminal; wherein each of said at least one wireless communications terminal comprises: an owner information storing section operable to store owner information of said at least one wireless communications terminal; a function state storing section operable to store the function state of said at least one wireless communications terminal; a receiving section operable to receive the control data transmitted from said terminal control device; an extraction section operable to extract the control target information and the function state change information from the control data received by said receiving section; a determination section operable to determine, based on the control target information extracted by said extraction section, whether or not the function state stored in said function state storing section is to be changed; and a change section operable to change, in accordance with a determination result obtained by said determination section, the function state stored in said function state storing section, based on the function state change information extracted by said extraction section; wherein the control target information is one of target information for specifying a terminal to be controlled and non-target information for specifying a terminal not to be controlled; and wherein, based on the owner information stored in said owner information storing section, said determination section is operable to determine that the function state stored in said function state storing section is to be changed when said at least one communications terminal is one of specified in the target information and not specified in the non-target information.