Horology: time measuring systems or devices – Combined with disparate device
Patent
1997-05-14
2000-10-10
Roskoski, Bernard
Horology: time measuring systems or devices
Combined with disparate device
368 47, G04B 1920
Patent
active
061308609
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.
REFERENCES:
patent: 4057785 (1977-11-01), Furniss et al.
patent: 4779199 (1988-10-01), Yoneda et al.
patent: 5136285 (1992-08-01), Okuyama
patent: 5583831 (1996-12-01), Churchill et al.
patent: 5719825 (1998-02-01), Dotter
patent: 5724316 (1998-03-01), Brunts
Casio Computer Co. Ltd.
Roskoski Bernard
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