Recording and reproduction apparatus, recording apparatus, editing apparatus, information recording medium, recording and reproduction method, recording method, and editing method

A recording apparatus for recording on an information recording medium at least one of first data and second data to be reproduced by a reproduction apparatus, the reproduction apparatus including:

• a reading section for reading the first data and the second data from the information recording medium
• a first buffer section for temporarily accumulating the read first data;
• a second buffer section for temporarily accumulating the read second data;
• a first decoding section for outputting first decoded data generated by decoding the accumulated first data;
• and
• a second decoding section for outputting second decoded data generated by decoding the accumulated second data;
• the recording apparatus comprising:
• a first setting section for setting a read finish point of the first data:
• a second setting section for setting a read start point of the second data;
• and
• a control section for calculating a first time period, from a start point of a seek operation of the reading section from the read finish point to the read start point until the first decoding section completes output of the first decoded data, and a second time period, from the start point of the seek operation until the second decoded data is allowed to be output by the second decoding section;
• and comparing a length of the calculated first time period and a length of the calculated second time period.

An editing apparatus for editing at least one of first data and second data recorded on an information recording medium to be reproduced by a reproduction apparatus, the reproduction apparatus including:

• a reading section for reading the first data and the second data from the information recording medium;
• a first buffer section for temporarily accumulating the read first data;
• a second buffer section:for temporarily accumulating the read second data;
• a first decoding section for outputting first decoded data generated by decoding the accumulated first data;
• and
• a second decoding section for outputting second decoded data generated by decoding the accumulated second data:
• the editing apparatus comprising:
• a first netting section for setting a read finish point of the first data;
• a second setting section for setting a read start point of the second data;
• and
• a control section for calculating a first time period, from a start point of a seek operation of the reading section from the read finish point to-the read start point until the first decoding section completes output of the first decoded data, and a second time period, from the start point of the seek operation until the second decoded data is allowed to be output by the second decoding section;
• and comparing a length of the calculated first time period and a length of the calculated second time period.

An information recording medium having first data and second data recorded thereon to be reproduced by a reproduction apparatus, the reproduction apparatus including:

• a reading section for reading the first data and the second data from the information recording medium;
• a first buffer section for temporarily accumulating the read first data;
• a second buffer section for temporarily accumulating the read second data;
• a first decoding section for outputting first decoded data generated by decoding the accumulated first data:
• and
• a second decoding section for outputting second decoded data generated by decoding the accumulated second data;
• wherein:
• a read finish point Is Bet for the first data,
• a read start point in set for the second data,
• the first data and the second data are arranged such that a length of the first time period, from a start point of a seek operation of the reading section from the read finish point to the read start point until the first decoding section completes output of the first decoded data, in greater than or equal to a length of second time period, from the start point of the seek operation until the second decoded data is allowed to be output by the second decoding section.

A recording and reproduction method, comprising the steps of:

• reading first data and second data from an information recording medium;
• temporarily accumulating the read first data;
• temporarily accumulating the read second data;
• outputting first decoded data generated by decoding the accumulated first data;
• outputting second decoded data generated by decoding the accumulated second data;
• setting a read finish point of the first data;
• setting a read start point of the second data;
• and
• calculating a first time period, from a start point of a seek operation from the read finish point to the read start point until output of the first decoded data is completed, and a second time period, from the start point of the seek operation until the second decoded data is allowed to be output;
• and comparing a length of the calculated first time period and a length of the calculated second time period.

A recording method for recording on an information recording medium at least one of first data and second data to be reproduced by a reproduction apparatus the reproduction apparatus including:

• a reading section for reading the first data and the second data from the information recording medium;
• a first buffer section for temporarily accumulating the read first data;
• a second buffer section for temporarily accumulating the read second data;
• a first decoding section for outputting first decoded data generated by decoding the accumulated first data;
• and
• a second decoding section for outputting second decoded data generated by decoding the accumulated second data;
• the recording method comprising the steps of:
• setting a read finish point of the first data;
• setting a read start point of the second data;
• and
• calculating a first time period, from a start point of a seek operation of the reading section from the read finish point to the read start point until the first decoding section completes output of the first decoded data, and a second time period, from the start point of the seek operation until the second decoded data is allowed to be output by the second decoding section;
• and comparing a length of the calculated first time period and a length of the calculated second time period.

An editing method for editing at least one of first data and second data recorded on an information recording medium to be reproduced by a reproduction apparatus, the reproduction apparatus including:

• a reading section for reading the first data and the second data from the information recording medium;
• a first buffer section for temporarily accumulating the read first data;
• a second buffer section for temporarily accumulating the read second data;
• a first decoding section for outputting first decoded data generated by decoding the accumulated first data;
• and
• a second decoding section for outputting second decoded data generated by decoding the accumulated second data;
• the editing method comprising the steps of:
• setting a read finish point of the first data;
• setting a read start point of the second data;
• and
• calculating a first time period, from a start point of a seek operation of the reading section from the read finish point to the read start point until the first decoding section completes output of the first decoded data, and a second time period, from the start point of the seek operation until the second decoded data la allowed to be output by the second decoding section;
• and comparing a length of the calculated first time period and a length of the calculated second time period.