Abstract: A chapter creating device creates chapter data which indicates a reproduction point of content including at least one of screen image and sound and includes time information indicating a reproduction start position and a header indicating the outline of the content at the reproduction point. The chapter creating device includes: a live data receiving unit that receives live data including character string data which is input to a terminal; a chapter candidate selecting unit that displays the live data received by the live data receiving unit on a display unit so as to prompt a user to select the displayed live data using an input unit; and a chapter creating unit that creates the chapter data including the character string data of the selected live data as the header and the data registration date and time of the selected live data as the time information.

Abstract: An estimating apparatus includes: a tag extracting unit configured to collect a blog via a network, the blog including a character string written by an individual to a web site; a provisional broadcasting station estimating unit configured to estimate a broadcasting station that broadcasts a program mentioned in the blog based on a feature word appearing in the character string of the blog; and a broadcasting station determination unit configured to refer to the blog database to count the number of the provisional broadcasting station of the program mentioned in the blog including the tag in the character string, and to determine the broadcasting station that broadcasts the program mentioned in the blog based on the counting result.

Abstract: A chapter creating device creates chapter data which indicates a reproduction point of content including at least one of screen image and sound and includes time information indicating a reproduction start position and a header indicating the outline of the content at the reproduction point. The chapter creating device includes: a live data receiving unit that receives live data including character string data which is input to a terminal; a chapter candidate selecting unit that displays the live data received by the live data receiving unit on a display unit so as to prompt a user to select the displayed live data using an input unit; and a chapter creating unit that creates the chapter data including the character string data of the selected live data as the header and the data registration date and time of the selected live data as the time information.

Abstract: A program search device includes: a table storage unit that stores an allowed word table; a program stream acquiring unit that acquires a program stream generated according to a broadcasting code of ethics; a table update unit that extracts caption data or program information, which is a first text data item related to the content of a program; a program storage unit that stores a program included in the acquired program stream; a data acquiring unit that acquires a second text data item; a data processing unit that divides the second text data item into morphemes, replaces the divided morpheme with a predetermined symbol; an index giving unit that gives a set of the recombined third text data item; and a program extracting unit that extracts the program stored in the program storage unit.

Abstract: A filtering device includes: a table storage unit that stores an allowed word table in which a plurality of morphemes and the number of appearances thereof are associated with each other; a program stream acquiring unit that acquires a program stream generated according to a broadcasting code of ethics; a table update unit that extracts caption data or program information, which is a first text data item related to the content of a program, from the program stream when the acquired program stream includes the caption data or the program information, divides the extracted caption data; a data acquiring unit that acquires an arbitrary second text data item; and a data processing unit that divides the second text data item into morphemes, replaces a divided morpheme with a predetermined symbol when the divided morpheme has not been registered in the allowed word table.

Abstract: A decision is made as to which of a first segment and a second segment of an input picture signal more correlates to a third segment of the input picture signal. The third signal segment is of interest. The first signal segment precedes the third signal segment by a 2-field interval or a 4-field interval. The second signal segment follows the third signal segment by a 2-field interval or a 4-field interval. Calculation is made as to a difference between the third signal segment and the more-correlating signal segment for every pixel related to the input picture signal. Every 1-pixel-corresponding portion of the third signal segment and every 1-pixel-corresponding portion of the more-correlating signal segment are mixed into a 1-pixel-corresponding portion of a filtering-resultant picture signal at a mixing ratio depending on the calculated difference.