Patent ID: 8812692
Filing Date: 2014-08-19
Classification: H04N

Abstract:
1. A data transmission system connected, via a network, to a data storage device storing destination information without correlation between users and the destination information, the data transmission system comprising: a data transmission device; and a destination management device for managing the destination information for each user, the data transmission device including: an address book storage that stores, for each user, an address book; an address book transmitter operable to transmit the address book to the destination management device when requested by the destination management device; a location information receiver operable to receive, from the destination management device, location information that is included in the address book transmitted to the destination management device by the address book transmitter and that indicates where in the data storage device a destination information piece is stored; a destination information acquirer operable to acquire, from the data storage device, the destination information piece indicated by the location information received from the destination management device; and a destination information transmitter operable to transmit, to the destination management device, the destination information piece acquired from the data storage device, and the destination management device including: an address book receiver operable to receive the address book from the data transmission device; a location information transmitter operable to transmit the location information to the data transmission device, when the location information is included in the address book received from the data transmission device; a destination information receiver operable to receive, from the data transmission device, the destination information piece indicated by the location information; and a destination information register operable to register the received destination information piece in the received address book.