US4449149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile apparatus
Assignee: Ricoh Co Ltd
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Filing: 1982-07-02
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Granted: 1984-05-15
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Expires: 2002-07-02
Abstract
Abstract A facsimile apparatus is disclosed wherein in a transmission mode facsimile data are transmitted scan line by scan line but in a predetermined irregular distribution of scan lines which has no relation with the order of scan lines on a document while, in a reception mode, the received facsimile data are reproduced rearranged to the original order of scan lines on a document.
Inventors
- 👤 Mutsuo Ogawa
- 👤 Noboru Murayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:54
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32609; H04N1/32646; H04N1/32683; H04N1/00095; H04N1/32614
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A facsimile apparatus including a transmitter, comprising: a scanner for scanning an original document and producing a continuous train of data carried on successive scan lines, the adjacent scan lines of data being distinguished from each other by an intervening end of line code; scattering means for scattering the successive lines of data into a predetermined irregular order; and buffer means for storing the scattered scan lines of data and producing the stored data one scan line at a time in such a manner that after the "N" line of stored data has been fed out, the "N+M" line of stored data is fed out, where N and M are integers and M is not larger than +2 and not smaller than +2.
Claim 2
Dependent Claim
123 words
A facsimile apparatus including a transmitter, comprising: a scanner for scanning an original document and producing a continuous train of data carried on successive scan lines, the adjacent scan lines of data being distinguished from each other by an intervening end of line code; scattering means for scattering the successive lines of data into a predetermined irregular order; and buffer means for storing the scattered scan lines of data and producing the stored data one scan line at a time in such a manner that after the "N" line of stored data has been fed out, the "N+M" line of stored data is fed out, where N and M are integers and M is not larger than +2 and not smaller than +2.
Claim 3
Dependent Claim
18 words
An apparatus as in claim 1, further comprising encoding means for encoding the data from the buffer means.
Claim 4
Dependent Claim
24 words
An apparatus as in claim 2, in which said encoding means comprises a compressor for encoding and compressing the data from the buffer means.
Claim 5
Dependent Claim
28 words
An apparatus as in claim 1, further comprising encoding means for encoding the train of data from the scanner and feeding the encoded data to the scattering means.
Claim 6
Dependent Claim
26 words
An apparatus as claimed in claim 4, in which said encoding means comprises a compressor for encoding and compressing the train of data from the scanner.
Claim 7
Dependent Claim
46 words
An apparatus as in claim 1, in which said buffer means comprises a first input buffer for storing the scattered data one scan line at a time and a second input buffer for storing the scattered data a predetermined numbers of scan lines at a time.
Claim 8
Dependent Claim
34 words
An apparatus as in claim 6, in which said scattering means comprises switching means for alternately distributing the train of data from the scanner to the first input buffer and the second input buffer.
Claim 9
Dependent Claim
55 words
An apparatus as claimed in claim 1, further including a receiver which comprises a plotter, said scattering means and buffer means being constructed to rearrange data scattered at a remote station and transmitted thereto into a train of data of the original order, said plotter reproducing an original document from the rearranged train of data.
References Cited (Backward Citations)
US3309461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |