Data delivery system, data receiving apparatus, and storage medium for video programs
AssigneeSony Corporation
InventorKan Ebisawa
Life of this patent
Estimating the term…
Abstract
In an NVOD system, a data storage unit is provided in a receiving apparatus, whereby a video program can be provided with an instantaneous response equivalent to the VOD system. Namely, the data of the first part of the video data is stored in the data storage unit in advance. When there is a request for reproduction, that stored data is immediately reproduced. The data after the first data is sent from a transmitting apparatus in the same way as an NVOD system heretofore. Buffering is performed in the receiving apparatus, and the resultant data is reproduced continuous with the data of the first part.
Claims14
A data delivery system in which a transmitting apparatus sends a video program to a receiving apparatus in response to a request therefrom, said data delivery system comprising:
- communication means provided in said receiving apparatus for sending said request for said video program to said transmitting apparatus;
- communication means provided in said transmitting apparatus for receiving said request for said video program from said receiving apparatus;
- first data outputting means provided in said transmitting apparatus for outputting data subsequent to a predetermined time's worth of data at the start of said video program to a plurality of channels;
- each channel being staggered by a time zone which is less than said predetermined time;
- the output data being transmitted only in response to said request from said receiving apparatus;
- first storage means provided in said receiving apparatus for storing in advance said predetermined time's worth of data;
- channel selecting means for selecting the channel whose data will be output earliest from among said plurality of channels in response to said request for reception of said video program from said receiving apparatus;
- second storage means for sequentially storing said data of the selected channel and wherein said stored data is simultaneously accessible by said receiving apparatus;
- and
- data reproducing means provided in said receiving apparatus for reproducing the data stored in said first storage means in response to said request for reception and then sequentially reproducing the data sequentially stored in said second storage means, thereby restoring said video program.
A data receiving apparatus which receives data forming a video program and reproduces the same on a display means, said data receiving apparatus comprising:
- communication means for requesting transmission of said video program from a transmitting apparatus;
- first storage means for storing in advance a predetermined time's worth of data at the start of said video program;
- second storage means for sequentially storing data from said transmitting apparatus;
- said data only being received in response to a request for reception of said video program and wherein the stored data is simultaneously accessible by a data reproducing means;
- said data being received from one of a plurality of channels distributing said video program which are staggered by time zones not greater than said predetermined time;
- and
- said data reproducing means for reproducing the data stored in said first storage means and sequentially reproducing the data sequentially stored in said second storage means so as to restore said video program.
A recording medium used in a receiving apparatus for reproducing a video program in a data delivery system which distributes data subsequent to a predetermined time's worth of data of the start of a video program to be delivered among a plurality of video programs to a plurality of channels staggered by time zones comprised of said predetermined time at the longest, delivers this distributed data from a transmitting apparatus to said receiving apparatus, and plays back said delivered video program at said receiving apparatus,
- said recording medium having a means attachable and detachable to and from a recording and/or reproducing means provided in said receiving apparatus, and
- a storage region for storing a predetermined time's worth of data of the start of each of said plurality of video programs being defined.
Dependencies are inferred from the claim text.