Method and apparatus for transmitting an information signal together with data packets of related and unrelated textual information and receiving apparatus therefor
First Claim
1. A method of producing a transmission signal which includes a main information signal and a subinformation signal, comprising the steps of:
- reading the main information signal and a series of first subinformation data packets from a record carrier on which such signal and data packets have been recorded together, such data packets representing textual information related to the main information signal;
interleaving the series of first subinformation data packets with a series of second subinformation data packets which represent textual subinformation unrelated to the main information signal, the first and second subinformation data packets having the same predetermined data format, the interleaved data packets constituting said subinformation signal; and
combining the main information signal and the subinformation signal to form said transmission signal.
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Abstract
An information signal representing audio and/or video information is read together with a series of first data packets representing textual subinformation relating thereto from a record carrier on which such signal and data packets have been recorded together. A series of second subinformation data packets having the same format as the first subinformation packets are interleaved therewith so as to form a subinformation signal, such signal being combined with the main information signal to form a transmission signal for transmission to a receiver, the second subinformation packets representing textual subinformation unrelated to the main information signal. A receiver for such transmitted signal reproduces the information in the main information signal together with selected portions of the textual subinformation represented by the data packets, such selection being effected by a user in accordance with menus represented by the data packets and displayed on a video display unit of the receiver.
54 Citations
14 Claims
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1. A method of producing a transmission signal which includes a main information signal and a subinformation signal, comprising the steps of:
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reading the main information signal and a series of first subinformation data packets from a record carrier on which such signal and data packets have been recorded together, such data packets representing textual information related to the main information signal; interleaving the series of first subinformation data packets with a series of second subinformation data packets which represent textual subinformation unrelated to the main information signal, the first and second subinformation data packets having the same predetermined data format, the interleaved data packets constituting said subinformation signal; and combining the main information signal and the subinformation signal to form said transmission signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Apparatus for producing a transmission signal which includes a main information signal and a subinformation signal, comprising:
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read means for reading the main information signal and a series of first subinformation data packets from a record carrier on which such signal and first subinformation data packets have been recorded together, such data packets having a predetermined format and representing information related to the main information signal; means for producing a series of second subinformation data packets which are unrelated to the main information signal and have the same format as the first subinformation data packets; converting means for interleaving the first and second series of subinformation data packets, the resulting series of interleaved data packets constituting said subinformation signal; and means for combining the main information signal and said subinformation signal to form said transmission signal. - View Dependent Claims (9, 10)
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11. A receiver for a transmission signal which includes a main information signal and a subinformation signal which consists of a series of interleaved first and second subinformation data packets, the main information signal and the first series of data packets having originated from a record carrier on which they were recorded together, the first subinformation data packets representing textual information in a plurality of first menus relating to the main information signal and the second subinformation data packets representing textual information in a plurality of second menus unrelated to the main information signal, the menu items being in the form of commands and corresponding command codes for executing such commands;
- said receiver comprising;
means for separating the main information signal and the subinformation signal; means for reproducing the information represented by the main information signal; a memory for storing menu items of said first and second menus in a selected part of said memory; display means responsive to the commands in the menus stored in said selected part of said memory for displaying selected ones of such menus corresponding to parts of the information represented by the subinformation signal; and selection means for selecting a menu item of a displayed menu and executing the command indicated by the command code stored in said memory corresponding to said selected menu item. - View Dependent Claims (12, 13, 14)
- said receiver comprising;
Specification