Patent ID: 8508760

Claim:
An output device comprising: plural communication units having different communication areas and configured to establish communication with a portable terminal device in order to receive data therefrom via contactless communication; a determination unit configured to determine whether the portable terminal device is within a predetermined communication area based on the identified communication unit; a granting unit configured to grant output of the data when the portable terminal device is determined to be within the predetermined communication area; and an output unit configured to output the data whose output is granted by the granting unit, wherein the determination unit includes an identification unit, a first determination unit and a second determination unit different from the first determination unit, the identification unit is configured to identify one, from among the plural communication units, which receives the data from the portable terminal device, the first determination unit is configured to determine, according to the communication unit identified by the identification unit, whether it is necessary to determine a distance to the portable terminal device based on a radio wave intensity, and the second determination unit is configured to determine, in a case where the identification unit identifies a first communication unit and the first determination unit determines that it is not necessary to determine the distance to the portable terminal device based on the radio wave intensity, that the portable terminal device is within the predetermined communication area, and determine, in a case where the identification unit identifies a second communication unit and the first determination unit determines that it is necessary to determine the distance to the portable terminal device based on the radio wave intensity, whether the portable terminal device is within the predetermined communication area according to the distance determined based on the radio wave intensity.