Patent US3485781A successfully refreshed from Google Patents.
US4152730A
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Synchronization system in a facsimile system
Assignee: KDDI Corp
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Filing: 1977-05-05
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Granted: 1979-05-01
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Expires: 1997-05-05
Abstract
Abstract In a facsimile system having a carrier movable linearly in both directions with a read-head and a write head for scanning an original paper and/or a printing paper, the movement of the carrier of the facsimile system in a receiving mode is initiated by the synchronization signal sent from another facsimile system in a transmission mode, thus the operation of the facsimile system in the receiving mode is synchronized with that in the transmission mode, on a start-stop basis. Said synchronization signal is sent from the transmission station to the receiving station for every both way trip of the carrier.
Inventors
- 👤 Tasaku Wada
- 👤 Yukio Nakagome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:40
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/36
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
109 words
A facsimile scanning system for use with plane original paper and plane printing paper comprising a carrier movable linearly with respect to the original and printing paper in a main scan, a read-head and a write head mounted on said carrier for scanning the plane original paper and the plane printing paper, synchronization signal generator means for generating a synchronization signal, the movement of the carrier in a receiving station being initiated by the synchronization signal sent from a transmission station on a start-stop synchronization basis, wherein said synchronization signal generating means generates a synchronizating signal for each scan, in both directions, of the carrier at the transmission station.
Claim 2
Dependent Claim
109 words
A facsimile scanning system for use with plane original paper and plane printing paper comprising a carrier movable linearly with respect to the original and printing paper in a main scan, a read-head and a write head mounted on said carrier for scanning the plane original paper and the plane printing paper, synchronization signal generator means for generating a synchronization signal, the movement of the carrier in a receiving station being initiated by the synchronization signal sent from a transmission station on a start-stop synchronization basis, wherein said synchronization signal generating means generates a synchronizating signal for each scan, in both directions, of the carrier at the transmission station.
Claim 3
Dependent Claim
69 words
A facsimile scanning system as set forth in claim 1 including a pulse motor for moving the carrier at said receiving station and a counter means for controlling said pulse motor, wherein said counter means receives said synchronization signal and is reset to zero thereby, said counter means initiating operation of said pulse motor and thereby the movement of said carrier when said counter means is reset to zero.
References Cited (Backward Citations)
US3832484A
Cited
US3886371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |