Devices and methods for specifying a time when a specified process was performed

A receiver comprising:

• current time measuring means for measuring a current time;
• receiving means for receiving from a transmitter first information on a time which has elapsed from a set point of time and which was measured when a specified process was performed by a user, and second information on an elapsed time measured when an instruction of transmission of the first information was inputted by the user to the transmitter;
• and
• calculating means for calculating a time at which the specified process was performed by the user based on the first information and the second information received by said receiving means and the current time measured by said current time measuring means.

A receiver comprising:

• receiving means for receiving from a transmitter first information on a time when a specified process was performed by a user and second information on a time when an instruction of transmission of the first information was inputted by the user to the transmitter, said first and second information having been obtained by a current time measuring means of the transmitter which measures a current time;
• receiving-end current time measuring means for measuring the current time;
• and
• calculating means for calculating a time in said receiving-end current time measuring means corresponding to the time in said current time measuring means of the transmitter when the specified process was performed by the user, based on the first information and the second information received by said receiving means and third information on the current time measured by said receiving-end current time measuring means.

A method of determining a time at which a specified process was performed by a user, comprising:

• measuring a current time;
• receiving from a transmitter information on a time difference:
• (i) between a time which has elapsed from a set point of time and which was measured when the specified process was performed by the user, and (ii) an elapsed time measured when an instruction of transmission of the information on the time difference was inputted by the user to the transmitter;
• and
• calculating the time at which the specified process was performed by the user based on the received time difference information and the measured current time.

A method of determining a time at which a specified process was performed by a user, comprising:

• measuring a current time;
• receiving from a transmitter first information on a time which has elapsed from a set point of time and which was measured when the specified process was performed by the user, and second information on an elapsed time measured when an instruction of transmission of the first information was inputted by the user to the transmitter;
• and
• calculating means for calculating the time at which the specified process was performed by the user based on the received first and second information and the measured current time.

A method of determining a time at which a specified process was performed by a user, comprising:

• receiving from a transmitter first information on a time when the specified process was performed by the user and second information on a time when an instruction of transmission of the first information was inputted by the user to the transmitter, said first and second information having been obtained by a current time measuring means of the transmitter which measures a current time;
• obtaining the current time by operating a receiving-end current time measuring means for measuring the current time;
• and
• calculating a time in said receiving-end current time measuring means corresponding to the time in said current time measuring means of the transmitter when the specified process was performed by the user, based on the received first and second information and third information on the current time measured by said receiving-end current time measuring means.

A storage medium having stored thereon a computer readable program, said computer readable program comprising:

• code means for enabling the computer to measure a current time;
• code means for enabling a computer to receive from a transmitter information on a time difference between:
• (i) a time which has elapsed from a set point of time and which was measured when a specified process was performed by a user, and (ii) an elapsed time measured when an instruction of transmission of the information on the time difference was inputted by the user to the transmitter;
• and
• code means for enabling the computer to calculate the time at which the specified process was performed by the user based on the received time difference information and the measured current time.

A storage medium having stored thereon a computer readable program, said computer readable program comprising:

• code means for enabling the computer to measure a current time;
• code means for enabling a computer to receive from a transmitter first information on a time which has elapsed from a set point of time and which was measured when a specified process was performed by a user, and second information on an elapsed time measured when an instruction of transmission of the first information was inputted by the user to the transmitter;
• and
• code means for enabling the computer to calculate the time at which the specified process was performed by the user based on the received first and second information and the measured current time.

A storage medium having stored thereon a computer readable program, said computer readable program comprising:

• code means for enabling a computer to receive from a transmitter first information on a time when a specified process was performed by a user and second information on a time when an instruction of transmission of the first information was inputted by the user to the transmitter, said first and second information having been obtained by a current time measuring means of the transmitter which measures a current time;
• code means for enabling the computer to obtain the current time by operating a receiving-end current time measuring means for measuring the current time;
• and
• code means for enabling the computer to calculate a time in said receiving-end current time measuring means corresponding to the time in said current time measuring means of the transmitter when the specified process was performed by the user, based on the received first and second information and third information on the current time measured by said receiving-end current time measuring means.