| 摘要 |
An interactive picture-in-picture system and methods for distributing television information signals. A display device located at a subscriber sit e is divided into two viewing areas, one showing interactive television information signals received from a first tuner and one showing television information signals received from a second tuner. A user at the subscriber site can interact with the signals by using an input device. The input devic e sends data that is defined in relation to the displayed signals to an interactive control node. The interactive control node responds with data th at causes one or both of the tuners to select a different television informatio n signal for display. The tuners select the different signal based to on the data sent by the interactive control node, causing at least one of the viewi ng areas to change, or continue to display the current signal if no data sent t o them from the interactive control node. |
