Audio and video transmission and receiving system
First Claim
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1. A transmission system for providing information to remote locations, the transmission system comprising:
- library means for storing items;
identification encoding means for retrieving the information for the items from the library means and for assigning a unique identification code to the retrieved information;
conversion means, coupled to the identification encoding means, for placing the retrieved information into a predetermined format as formatted data;
ordering means, coupled to the conversion means, for placing the formatted data into a sequence of addressable data blocks;
compression means, coupled to the ordering means, for compressing the formatted and sequenced data;
compressed data storing means, coupled to the data compression means, for storing as a file the compressed, sequenced data received from the data compression means with the unique identification code assigned by the identification encoding means; and
transmitter means, coupled to the compressed data storing means, for sending at least a portion of a file to one of the remote locations.
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Abstract
A system of distributing video and/or audio information employs digital signal processing to achieve high rates of data compression. The compressed and encoded audio and/or video information is sent over standard telephone, cable or satellite broadcast channels to a receiver specified by a subscriber of the service, preferably in less than real time, for later playback and optional recording on standard audio and/or video tape.
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Citations
32 Claims
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1. A transmission system for providing information to remote locations, the transmission system comprising:
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library means for storing items;
identification encoding means for retrieving the information for the items from the library means and for assigning a unique identification code to the retrieved information;
conversion means, coupled to the identification encoding means, for placing the retrieved information into a predetermined format as formatted data;
ordering means, coupled to the conversion means, for placing the formatted data into a sequence of addressable data blocks;
compression means, coupled to the ordering means, for compressing the formatted and sequenced data;
compressed data storing means, coupled to the data compression means, for storing as a file the compressed, sequenced data received from the data compression means with the unique identification code assigned by the identification encoding means; and
transmitter means, coupled to the compressed data storing means, for sending at least a portion of a file to one of the remote locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A distribution method responsive to requests identifying information to be sent from a transmission system to remote locations, the method comprising the steps of:
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storing audio and video information in a compressed data form;
requesting transmission, by a user, of at least a part of the stored compressed data to a remote location selected by the user;
sending at least a portion of the stored compressed information to the remote location;
receiving the sent information at the remote location;
buffering the received information at the remote location; and
playing back the buffered information in real time at a time requested by the user. - View Dependent Claims (19, 20, 21)
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22. A receiving system responsive to a user input identifying a choice of an item stored in a source material library to be played back to the subscriber at a location remote from the source material library, the item containing information to be sent from a transmitter to the receiving system, the receiving system comprising:
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transceiver means, for automatically receiving the requested information from the transmitter as compressed formatted data blocks;
receiver format conversion means, coupled to the transceiver means, for converting the compressed formatted data blocks into a format suitable for storage and processing for playback in real time;
storage means, coupled to the receiver format conversion means, for storing the compressed formatted data;
decompressing means, coupled to the receiver format conversion means, for decompressing the compressed formatted information; and
output data conversion means, coupled to the decompressing means, for playing back the decompressed information in real time at a time specified by the user. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification