A method performed by a position detecting device, comprising: receiving, from a position indicator, a signal block from a plurality of signal blocks, the signal block comprising: position information indicating the position of the position indicator, and a sending information block comprising an information part of a plurality of information parts, the plurality of information parts constituting first information associated with the position indicator that is larger in size than the sending information block, and comprising a division number associated with the information part and indicating the position of the information part inside the first information, wherein the entire first information is to be received by receiving the plurality of information parts in the plurality of signal blocks; providing the estimated first information based on the information part, the division number and a stored first information, including comparing the information part with the stored first information, and providing the estimated first information based on the information part, the division number, at least one information part of the plurality of information parts and associated at least one division number included in at least one signal block previously received, and the stored first information; associating the position information with the estimated first information; and outputting combined information comprising the position information and the estimated first information. receiving, from a position indicator, a signal block from a plurality of signal blocks, the signal block comprising: position information indicating the position of the position indicator, and a sending information block comprising an information part of a plurality of information parts, the plurality of information parts constituting first information associated with the position indicator that is larger in size than the sending information block, and comprising a division number associated with the information part and indicating the position of the information part inside the first information, wherein the entire first information is to be received by receiving the plurality of information parts in the plurality of signal blocks; position information indicating the position of the position indicator, and a sending information block comprising an information part of a plurality of information parts, the plurality of information parts constituting first information associated with the position indicator that is larger in size than the sending information block, and comprising a division number associated with the information part and indicating the position of the information part inside the first information, wherein the entire first information is to be received by receiving the plurality of information parts in the plurality of signal blocks; providing the estimated first information based on the information part, the division number and a stored first information, including comparing the information part with the stored first information, and providing the estimated first information based on the information part, the division number, at least one information part of the plurality of information parts and associated at least one division number included in at least one signal block previously received, and the stored first information; comparing the information part with the stored first information, and providing the estimated first information based on the information part, the division number, at least one information part of the plurality of information parts and associated at least one division number included in at least one signal block previously received, and the stored first information; associating the position information with the estimated first information; and outputting combined information comprising the position information and the estimated first information.