Patent ID: 7536358

Claim:
A data terminal unit, comprising: a processing portion for receiving program data and position-dependent information through a communication network and reproducing the received program data, the program data corresponding to a plurality of sequentially displayable images of a program, the position-dependent information relating individual positions of a plurality of different spatial positions within the images with respective information obtainable through the communication network, the position-dependent information being synchronized with the program; a displaying portion for displaying the program data reproduced by the processing portion a commander operable by a viewer, the commander including a commander displaying portion operable to display the program data reproduced by the processing portion and displayed on the displaying portion, and being operable to register a viewer request for respective information obtainable through the communication network by cursor selection of respective position-dependent information at a respective spatial position within the images of the reproduced program data displayed on the commander displaying portion, wherein the processing portion then is operable to obtain the requested information through the communication network in response to the viewer request and display the obtained information on the commander displaying portion, the obtained information being displayed on the commander displaying portion while the reproduced program data is being displayed on the displaying portion.