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

• US 6,288,978 B1
• Filed: 12/20/1999
• Issued: 09/11/2001
• Est. Priority Date: 05/16/1996
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Suzuki, Hiroaki
• Primary Examiner(s): Roskoski, Bernard
• Application Number:
  US09/468,268
• Time in Patent Office: 631 Days
• Field of Search: 368/10, 368/47, 368/107-113, 368/70
• US Class Current: 368/107
• CPC Class Codes: G04G 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A transmitter includes a time measuring unit. The transmitter also includes a time information storage unit for storing information on the time measured by the time measuring unit when a specified process was performed. The transmitter is responsive to an instruction of transmission to transmit to a receiver information on the time difference between the time measured by the time measuring unit and the time whose information is stored in the time information storage unit. The receiver calculates the time when the specified process was performed by the transmitter on the basis of the information on the received time difference and information on the current time obtained by a time measuring unit. Thus, although the transmitter has no current time measuring unit, the receiver is capable of specifying the time when the specified process was performed.

Claims

1. A receiver comprising:

current time measuring means for measuring a current time;

receiving means for receiving 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

calculating means for calculating a time at which the specified process was performed by the user based on the information on the time difference received by said receiving means and the current time measured by said current time measuring means.

2. The receiver according to claim 1, wherein the specified process comprises a process for measuring living body data.

3. The receiver according to claim 2, wherein said receiving means includes means for receiving the living body data as well as the information on the time difference.

4. The receiver according to claim 1, wherein said receiving means comprises means for transmitting information on the time at which the specified process was performed calculated by said calculating means.

5. 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.

6. The receiver according to claim 5, wherein the specified process comprises a process for measuring living body data.

7. The receiver according to claim 6, wherein said receiving means includes means for receiving the living body data as well as the first and second information.

8. The receiver according to claim 5, wherein said receiving means comprises means for transmitting information on the time at which the specified process was performed calculated by said calculating means.

9. 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.

10. The receiver according to claim 9, wherein the specified process comprises a process for measuring living body data.

12. The receiver according to claim 9, wherein said receiving means comprises means for transmitting information on the time calculated by said calculating means.

11. The receiver according to claim 11, wherein said receiving means includes means for receiving the living body data as well as the information on the time difference.

13. 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.

14. The method according to claim 13, further comprising receiving living body data along with the time difference information.

15. The method according to claim 13, further comprising transmitting information on the calculated time.

16. 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.

17. The method according to claim 16, further comprising receiving living body data along with the first and second information.

18. The method according to claim 16, further comprising transmitting information on the calculated time.

19. 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.

20. The method according to claim 19, further comprising receiving living body data along with the first and second information.

21. The method according to claim 19, further comprising transmitting information on the calculated time.

22. 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.

23. The storage medium according to claim 22, wherein said computer readable program further includes code means for enabling the computer to receive living body data along with the time difference information.

24. The storage medium according to claim 22, wherein said computer readable program further includes code means for enabling the computer to transmit information on the calculated time.

25. 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.

26. The storage medium according to claim 25, wherein said computer readable program further includes code means for enabling the computer to receive living body data along with the first and second information.

27. The storage medium according to claim 25, wherein said computer readable program further includes code means for enabling the computer to transmit information on the calculated time.

28. 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.

29. The storage medium according to claim 28, wherein said computer readable program further includes code means for enabling the computer to receive living body data along with the first and second information.

30. The storage medium according to claim 28, wherein said computer readable program further includes code means for enabling the computer to transmit information on the calculated time.