US4907255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clock adjusting system of a facsimile machine
Assignee: Ricoh Co Ltd
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Filing: 1988-12-23
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Granted: 1990-03-06
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Expires: 2008-12-23
Abstract
Abstract A time adjusting system includes a facsimile machine having a real time clock and a center station in charge of management of accurate time information. The facsimile machine places a call to the center station at a predetermined time and receives accurate time information therefrom to thereby adjust the time of its own real time clock.
Inventors
- 👤 Shunji Kurokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:48
CPC Classifications
G; G04; G04G; G04G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A time adjusting system of a facsimile machine, comprising: a first facsimile machine having a real time clock indicating time; a second facsimile machine having a time information transmitting function which may be operatively connected to said first facsimile machine through a telephone network and which is in charge of management of accurate time information; and whereby said first facsimile machine places a call to said second facsimile machine at a predetermined time to thereby establish a communication path between said first facsimile machine and said second facsimile machine so that said second facsimile machine transmits said time information to said first facsimile machine and said first facsimile machine adjusts the time of said real time clock based on said time information thus received.
Claim 2
Dependent Claim
124 words
A time adjusting system of a facsimile machine, comprising: a first facsimile machine having a real time clock indicating time; a second facsimile machine having a time information transmitting function which may be operatively connected to said first facsimile machine through a telephone network and which is in charge of management of accurate time information; and whereby said first facsimile machine places a call to said second facsimile machine at a predetermined time to thereby establish a communication path between said first facsimile machine and said second facsimile machine so that said second facsimile machine transmits said time information to said first facsimile machine and said first facsimile machine adjusts the time of said real time clock based on said time information thus received.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |