Method and apparatus for storing text data in subcode packs
AssigneeTime Warner Interactive Group Inc.
InventorsMichael Case, Walter R. Klappert
Life of this patent
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Abstract
An apparatus and method for encoding data in a text format such as ASCII or EBCDIC on a laser disc or compact disc without affecting the digitized sound by utilizing what is known as the subcode channel of the laser disc or compact disc. By storing text data in the subcode channel region as described herein, it is possible to create subtitles for movies in a number of languages such that the language in which the subtitles appear is user selectable. In this manner, it is possible to create laser discs having subtitle information in, for example, ten languages thereby avoiding the necessity of creating ten separate laser discs, each having a different language used for subtitling.
Claims15
A system for storing information in subcode packs to be encoded on a laser or compact disc having a main channel and a subcode channel comprising:
- a) text source means (11) for generating a plurality of lines of data in a predetermined text encoded format;
- b) a computer (15) having a random access memory, a processor and coupled to a storage device (17);
- c) first means (15a) for controlling the operation of said processor and said memory so as to load said predetermined text data into said memory and to convert the text data in said memory to a plurality of subcode packs;
- d) means for storing said plurality of subcode packs in said subcode channel.
A method for storing text information in subcode packs to be encoded on a laser or compact disc having a main channel and a subcode channel comprising the steps of:
- a) generating (11) a plurality of lines of data in a predetermined text format;
- b) controlling (15a) the operation of a computer (15) having a random access memory, a processor and coupled to a storage device (17) so as to load said predetermined text data into said memory and to convert the text data in said memory to a plurality of subcode packs,
- c) storing said plurality of subcode packs in said subcode channel.
Dependencies are inferred from the claim text.