US3707601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile transceiver
Assignee: PHONOCOPY Inc
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Filing: 1970-07-24
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Granted: 1972-12-26
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Expires: 1990-07-24
Abstract
Abstract A flat-bed scanner for facsimile transceivers permits an original document to be inserted for scan reading and the sheet materials necessary for scan print-out to be operatively engaged respectively by the scanning read heads or writing stylii by mounting these scanning elements on an endless belt driven on two spaced pulleys. The original document is read by the read heads as they move in one direction between the pulleys and the printout occurs on the opposite side of the pulley assembly as the writing stylii are transported by the belt on its return run. By establishing ''''diametric symmetry'''' simplified phase synchronization of two units is obtained independent of the direction of transmission.
Inventors
- 👤 Ralph W Goble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/14; H04N1/0461; H04N1/32; H04N1/36; H04N1/0464
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
304 words
A facsimile transceiver comprising: reading device means for producing electric scan signals representing the image on a document; writing device means for producing scan images on a sheet in response to electric scan signals; opposed support surfaces for a document to be read and a sheet to have an image written thereon by said device means respectively; rotating drive means for traversing said device means over said surfaces in a closed path which is subdivided into diametrically opposite sectors each substantially equal to the length of a scan line and substantially coextensive with said opposed support surfaces; means for indexing said drive means at a predetermined position on said closed path; means selectively operablE for alternately bringing said opposed support surfaces into operative position relative to said reading device means and said writing device means; said support surfaces associated with drive means for respectively moving said documents and said sheet transverse to said closed path when in said operative position; said writing device means including a stylus, and including means for erecting said stylus into sheet contacting position when said support surface for said sheet is in said operative position and retracting said stylus when said support surface for said document is in said operative position; a substantial reserve supply of continuous sheet stock for supplying said sheet, and means for feeding said sheet stock to be maintained between said stylus and said support surface for said sheet and brought into engagement with said stylus when said support surface for said sheet moves to said operative position; said supply of sheet stock comprising a roll of thin metal foil and a roll of paper fed as a two-ply sheet with said support surface for said sheet when in said operative position bearing against said paper to urge said foil into contact with said stylus.
Claim 2
Dependent Claim
304 words
A facsimile transceiver comprising: reading device means for producing electric scan signals representing the image on a document; writing device means for producing scan images on a sheet in response to electric scan signals; opposed support surfaces for a document to be read and a sheet to have an image written thereon by said device means respectively; rotating drive means for traversing said device means over said surfaces in a closed path which is subdivided into diametrically opposite sectors each substantially equal to the length of a scan line and substantially coextensive with said opposed support surfaces; means for indexing said drive means at a predetermined position on said closed path; means selectively operablE for alternately bringing said opposed support surfaces into operative position relative to said reading device means and said writing device means; said support surfaces associated with drive means for respectively moving said documents and said sheet transverse to said closed path when in said operative position; said writing device means including a stylus, and including means for erecting said stylus into sheet contacting position when said support surface for said sheet is in said operative position and retracting said stylus when said support surface for said document is in said operative position; a substantial reserve supply of continuous sheet stock for supplying said sheet, and means for feeding said sheet stock to be maintained between said stylus and said support surface for said sheet and brought into engagement with said stylus when said support surface for said sheet moves to said operative position; said supply of sheet stock comprising a roll of thin metal foil and a roll of paper fed as a two-ply sheet with said support surface for said sheet when in said operative position bearing against said paper to urge said foil into contact with said stylus.
Claim 3
Dependent Claim
177 words
A facsimile transceiver comprising; a pair of spaced rotatable pulleys, the axis of rotation for said pulleys being parallel; a belt connecting said pulleys to rotate in unison therewith and provide linear parallel opposite direction top and bottom transport runs between said pulleys; means for driving the pulley and belt assembly; an equal plurality of separate read and write heads carried on said belt with equidistant alternate spacing along said belt; planar support surfaces opposed to said top and bottom transport runs; means including said read heads operative for reading a document supported on one of said support surfaces; and means including said write heads for producing a facsimile copy on a sheet supported on the other of said support surfaces; said support surfaces associated with flexible web drive means operative when engaged for driving flexible web material transverse to said transport runs; and means selectively operable to bring said flexible web drive means alternately into operative engagement at one or the other of said support surfaces as the transceiver is conditioned to either send or receive.
Claim 4
Dependent Claim
177 words
A facsimile transceiver comprising; a pair of spaced rotatable pulleys, the axis of rotation for said pulleys being parallel; a belt connecting said pulleys to rotate in unison therewith and provide linear parallel opposite direction top and bottom transport runs between said pulleys; means for driving the pulley and belt assembly; an equal plurality of separate read and write heads carried on said belt with equidistant alternate spacing along said belt; planar support surfaces opposed to said top and bottom transport runs; means including said read heads operative for reading a document supported on one of said support surfaces; and means including said write heads for producing a facsimile copy on a sheet supported on the other of said support surfaces; said support surfaces associated with flexible web drive means operative when engaged for driving flexible web material transverse to said transport runs; and means selectively operable to bring said flexible web drive means alternately into operative engagement at one or the other of said support surfaces as the transceiver is conditioned to either send or receive.
Claim 5
Dependent Claim
58 words
Apparatus according to claim 2 in which the length of said transport runs, the length of said support surfaces, the spacing between said read heads on said belt and the spacing between said write heads on said belt are all substantially equal and correspond approximately to the width of the flexible web material engaged by said drive means.
Claim 6
Dependent Claim
41 words
Apparatus according to claim 3 in which the spacing and diameter of said pulleys is such that a read head is positioned to start along one of said transport runs whenever a write head starts along the other said transport run.
Claim 7
Dependent Claim
31 words
Apparatus according to claim 4 and including means on each of said heads for adjusting the effective position of said head on said belt thereby to precisely obtain said equidistant spacing.
Claim 8
Dependent Claim
28 words
Apparatus according to claim 4 and including means for obtaining an electrical synchronizing signal corresponding to a predetermined point on the rotation of said pulley and belt assembly.
Claim 9
Dependent Claim
28 words
Apparatus according to claim 2 and including means for obtaining an electrical synchronizing signal corresponding to a predetermined point on the rotation of said pulley and belt assembly.
Claim 10
Dependent Claim
46 words
Apparatus according to claim 2 in which said write heads have a stylus which can be erected and retracted and including means for erecting the stylii on said write heads when the transceiver is conditioned to receive and maintaining said stylii retracting when conditioned to transmit.
Claim 11
Dependent Claim
25 words
Apparatus according to claim 8 in which said stylii are erected only during the one of said transport runs opposed to said other support surface.
Claim 12
Dependent Claim
44 words
Apparatus according to claim 9 and including a roll of paper and a rOll of metal foil supported to be fed as a two-ply continuous sheet by said drive means associated with said other support surface with said foil contacted by said erect stylii.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |