Abstract: A communication device of the present invention which is realized as a video communication device (1) includes: a communication control section (2) for establishing communication connection with other communication device; a content receiving section (6) for obtaining content data from the outside; and a content transmission section (8) for specifying another communication device as a communication device, to which the obtained content data should be transmitted, if connection with said another communication device is established when the content receiving section (6) obtains the content data, so that it is possible to easily share the content data, obtained from the outside, with the communication counterpart device with which the communication connection has been established.

Abstract: A bookmark using device of the present invention includes: a feature information extracting section (64) for extracting a feature information indicative of a subject of a content from a bookmark including at least (i) a content retrieval address used in retrieving the content and (ii) the feature information; and an alternative content detecting section (65) for detecting, in accordance with the extracted feature information, an alternative content whose subject is similar to or corresponds to the subject of the content from one or a plurality of content sources for supplying a content usable by the bookmark using device. This enables detecting where to retrieve an alternative content which is accessible by the bookmark using device and which corresponds to a bookmarked content.

Abstract: A request processing section (12) receives a request of a content which a user desires to be delivered. A delivery destination specification section (14) specifies at least one or more of a plurality of content reproduction apparatuses which can reproduce the content requested. The request processing section (12) causes the user to operate a mobile terminal so as to select that of the content reproduction apparatuses specified by the delivery destination specification section (14) to which the content should be delivered. A content acquisition section (10) externally acquires the content. Then, a content delivery section (20) delivers the content to the content reproduction apparatus thus selected by the user. By this, the user can surely watch/listen to the content which he desires to be delivered, via the content reproduction apparatus.

Abstract: A communication device of the present invention which is realized as a video communication device (1) includes: a communication control section (2) for establishing communication connection with other communication device; a content receiving section (6) for obtaining content data from the outside; and a content transmission section (8) for specifying another communication device as a communication device, to which the obtained content data should be transmitted, if connection with said another communication device is established when the content receiving section (6) obtains the content data, so that it is possible to easily share the content data, obtained from the outside, with the communication counterpart device with which the communication connection has been established.

Abstract: In communication with another communications apparatus, the apparatus of the present invention switches communication from one-way mode into two-way mode without any communication break. The apparatus further includes a one-way communication response-permitted apparatus information storage for storing one or more one-way communication response-permitted apparatus information; and a verifying portion for checking whether the sender of the communication initiation request has been registered in the one-way communication response-permitted apparatus information storage. As a result of the reference by the verifying portion, when the sender is found in the one-way communication response-permitted apparatus information storage, the apparatus accepts to start one-way communication with the sender.