Abstract: An electronic device corrects its device side time with a time correction information supplied from outside the device. The electronic device includes a reception section and a time correction section. The reception section receives the time correction information. The time correction section judges whether the information is received during any correction inhibiting periods of the device side time, then either discards the time correction information if it is received during the correction inhibiting periods, or corrects the device side time with the time correction information if it is received other than the correction inhibiting periods.

Abstract: The present invention is made with the aim of performing time correction appropriately, regarding an electronic device that corrects its device side time with a time correction information supplied from outside the device. This is achieved by the electronic device (mobile terminal device 2) that corrects its device side time with a time correction information supplied from outside the device, comprising a reception section (wireless reception section 8) that receives the time correction information; and a time correction section (processor 6) that judges whether the information is received during any correction inhibiting periods of the device side time, then either discards the time correction information if it is received during the correction inhibiting periods, or corrects the device side time with the time correction information if it is received other than the correction inhibiting periods.

Abstract: The present invention relates to an electronic device capable of operating multiple functions simultaneously, and enables to operate another function on which operational restriction has been put, with no decline in security features, even while operating a particular function. The electronic device is an electronic device (e.g., mobile terminal device 2) capable of operating another function while operating one function and capable of setting operational restriction for each function, comprising a control part (processor 6) that accepts said another function calling while operating said one function, and that releases the operational restriction based on the judgment of the authentication information in the case where the operational restriction has been set to said another function being called.

Abstract: A stereophonic sound reproducing method receives audio information and dynamic image information transmitted from a transmitting end and reproduces sound and dynamic image, by generating position information of a sound source of the transmitting end based on the dynamic image information, and reproducing the audio information based on the position information of the sound source and reproducing stereophonic sound that takes into consideration-the position information of the sound source of the transmitting end.