Information-processing apparatus, content reproduction apparatus, information-processing method, event-log creation method and computer programs

A non-transitory computer readable medium having recorded thereon a computer executable computer program which causes the computer to carry out:

• an event-log acquisition process of acquiring an event log, provided by a content reproduction apparatus reproducing contents, said event log including information identifying said contents and information indicating a reproduction start date/time and reproduction end date/time for each of said contents;
• an event-log analysis process of deriving, from said event log, said reproduction start date/time and reproduction end date/time of each of said contents reproduced by said content reproduction apparatus;
• a playlist generation process of generating a playlist, said playlist including pieces of information, each piece identifying a content of said contents reproduced by said content reproduction apparatus during a specific period, and said playlist generated on the basis of said reproduction start date/time and reproduction end date/time of said contents, as determined from said event log by said event-log analysis process;
• a playlist transfer process of transmitting said playlist to said content reproduction apparatus;
• and
• a condition inputting process of inputting said specific period, said specific period defining a particular date or a particular date range, wherein
• said reproduction start date/time and reproduction end date/time of said contents define reproduction date/time periods of said contents, and
• said playlist generation process generates said playlist on the basis of said reproduction start date/time and reproduction end date/time of said contents, as determined from said event log by said event-log analysis process, such that said playlist identifies contents having reproduction date/time periods that are within said specific period.

An information processing method, comprising:

• acquiring an event log, provided by a content reproduction apparatus reproducing contents, said event log including information identifying said contents and information indicating a reproduction start date/time and reproduction end date/time for each of said contents;
• deriving, from said event log, said reproduction start date/time and reproduction end date/time of each of said contents reproduced by said content reproduction apparatus;
• inputting a specific period, said specific period defining a particular date or a particular date range;
• generating a playlist, said playlist including pieces of information, each piece identifying a content of said contents reproduced by said content reproduction apparatus during a specific period of time, and said playlist generated on the basis of said reproduction start date/time and reproduction end date/time of said contents, as determined from said event log by said deriving, wherein
• said reproduction start date/time and reproduction end date/time of said contents define reproduction date/time periods of said contents, and said generating said playlist generates said playlist on the basis of said reproduction start date/time and reproduction end date/time of said contents, as determined from said event log, such that said playlist identifies contents having reproduction date/time periods that are within said specific period;
• and
• transmitting said playlist to said content reproduction apparatus.

A content reproduction apparatus comprising:

• a content storage section storing contents;
• a reproduction operation section selecting a specific one from said contents stored in said content storage section;
• a date/time generation section generating a date/time;
• a content reproduction section reproducing a content selected by said reproduction operation section;
• an event-log storage section storing an event log including at least information identifying a content reproduced by said content reproduction section and information indicating a reproduction start date/time and reproduction end date/time of said content;
• an event-log creating/updating section creating a new event log, storing said new event log into said event-log storage section, and updating an event log already stored in said event-log storage section by creating a record showing a date/time generated by said date/time generation section and adding said created record to said already stored event log;
• an event-log transfer section transmitting an event log stored in said event-log storage section to an external apparatus;
• a playlist acquisition section acquiring a playlist generated by said external apparatus on the basis of said transmitted event log, said playlist including pieces of information, each piece identifying a content of said contents stored in said content storage section which satisfies a predetermined date/time condition as determined from said transmitted event log;
• a condition inputting section inputting said predetermined date/time condition as a specific period, said specific period defining a particular date or a particular date range;
• and
• a playlist storage section storing a playlist acquired by said playlist acquisition section, wherein
• said playlist is generated such that said playlist identifies contents having reproduction start dates/times and reproduction end dates/times that are within said specific period.

A non-transitory computer readable medium having recorded thereon a computer executable computer program which causes the computer to carry out:

• a content selection process of selecting a specific content from contents stored on a recording medium;
• a content reproduction process of reproducing a content selected in said content selection process;
• a date/time generation process of generating a date/time;
• an event-log recording process of generating an event log, which includes at least information identifying a content reproduced in said content reproduction process and information indicating a reproduction start date/time and reproduction end date/time of said content, by using a date/time generated in said date/time generation process and recording said event log onto said recording medium;
• an event-log transfer process of transmitting an event log to an external apparatus;
• a playlist acquisition process of acquiring a playlist generated by said external apparatus on the basis of said transmitted event log, said playlist including pieces of information, each piece identifying a content of said contents stored on the recording medium which satisfies a predetermined date/time condition as determined from said transmitted event log;
• and
• a condition inputting process of inputting said predetermined date/time condition as a specific period, said specific period defining a particular date or a particular date range, wherein
• said playlist is generated such that said playlist identifies contents having reproduction start dates/times and reproduction end dates/times that are within said specific period.

An event-log creation method comprising the steps:

• selecting a specific content from contents stored on a recording medium;
• reproducing a content selected at said content selection step;
• a date/time generation step of generating a date/time;
• an event-log recording step of generating an event log, which includes at least information identifying a content reproduced at said content reproduction step and information indicating a reproduction start date/time and reproduction end date/time of said content, by using a date/time generated at said date/time generation step and recording said event log onto said recording medium;
• an event-log transfer step of transmitting an event log to an external apparatus;
• a playlist acquisition step of acquiring a playlist generated by said external apparatus on the basis of said transmitted event log, said playlist including pieces of information, each piece identifying a content of said contents stored on the recording medium which satisfies a predetermined date/time condition as determined from said transmitted event log;
• and
• a condition inputting step of inputting said predetermined date/time condition as a specific period, said specific period defining a particular date or a particular date range, wherein
• said playlist is generated such that said playlist identifies contents having reproduction start dates/times and reproduction end dates/times that are within said specific period.