| 摘要 |
A string matching pattern is detected in a subtitle text stream extracted from a television stream. If there is a matched string covered by the string matching pattern in the subtitle text stream, a predetermined response is activated. For example, if the string matching pattern is a phone number syntax and there is a sequence number matching the phone number syntax, the response may be set as calling a phone according to the sequence number. Usually, subtitles only last for a few seconds, but the matched string may stay on a screen longer so that a user can have sufficient time to write it down.
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