Process for associating and delivering data with visual media
First Claim
1. A process for associating and delivering data with a video signal, comprising the steps of:
- encoding a video source signal by inserting data in unused video bandwidth of the video source signal;
transmitting the encoded video source signal;
decoding the encoded video source signal; and
visually displaying the data or audibly delivering the data to an end user.
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Abstract
A process for associating and delivering data with a video signal includes digitizing an analog data signal. The digitized data is then compressed and transcoded into a format compatible with a video source signal. The data is then inserted into unused video lines of the video source signal. The encoded video source signal is transmitted to a decoder where the inserted data is separated from the video source signal. The inserted data is then converted to its original form, and either visually displayed or audibly delivered to an end user. The invention can be used to associate and deliver audio narrative description with a video signal for the benefit of the visually impaired.
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Citations
23 Claims
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1. A process for associating and delivering data with a video signal, comprising the steps of:
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encoding a video source signal by inserting data in unused video bandwidth of the video source signal;
transmitting the encoded video source signal;
decoding the encoded video source signal; and
visually displaying the data or audibly delivering the data to an end user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 23)
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13. A process for associating and delivering data with video media, comprising the steps of:
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digitizing an analog data signal;
compressing the digitized data;
transcoding the compressed digitized data into a format compatible with a video source signal;
encoding the video source signal with the data by inserting the data into unused video lines of the video source signal;
transmitting the encoded video source signal;
decoding the encoded video source signal to separate the inserted data from the video source signal;
transcoding the inserted data into its original format;
decompressing the inserted data;
converting the inserted data from a digital format to an analog signal; and
visually displaying or audibly delivering the analog data signal to an end user.
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17. A process for associating and delivering data with video, comprising the steps of:
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encoding a video source signal with data comprising an audio narrative description of visual media associated with the video source signal by inserting the audio narrative description data into unused video lines of the video source signal;
transmitting the encoded video source signal;
decoding the encoded video source signal to separate the inserted audio narrative description data from the video source signal; and
delivering the audio narrative description data to an audio speaker.
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Specification