Communication apparatus, communication method and program

A communication method characterized in that said communication method comprises:

• a first computation step of computing a second time stamp on the basis of a difference in phase between a clock of a first time stamp and a predetermined first clock and on the basis of a count value obtained as a result of counting the number of predetermined second clocks with a timing of inputting processed data including said first time stamp wherein said difference in phase is a generated over a predetermined period of time;
• a second computation step of computing a third time stamp by removing a shift between a reference clock and said second time stamp from said second time stamp wherein said shift is generated during a period of time till said processed data is input;
• and
• a renewal step of renewing said first time stamp written in said processed data with said third time stamp.

A program to be executed by a computer to carry out processing, said program characterized in that said processing comprises:

• a first computation control step of controlling computation of a second time stamp on the basis of a difference in phase between a clock of a first time stamp and a predetermined first clock and on the basis of a count value obtained as a result of counting the number of predetermined second clocks with a timing of inputting processed data including said first time stamp wherein said difference in phase is a generated over a predetermined period of time;
• a second computation control step of controlling computation of a third time stamp by removing a shift between a reference clock and said second time stamp from said second time stamp wherein said shift is generated during a period of time till said processed data is input;
• and
• a renewal control step of controlling renewal of said first time stamp written in said processed data with said third time stamp.