US5274474A
Expired / Lapsed
US
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Integrated telefacsimile and character communication system with standard and high speed modes
Assignee: MITCHELL MEDINA
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Filing: 1991-01-23
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Granted: 1993-12-28
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Expires: 2011-01-23
Abstract
Abstract A telefacsimile machine selectively operates in standard and high speed modes depending on the compatibility of equipment communicating with the telefacsimile machine at a particular time. The standard mode communication employs bit mapped pixels for both text and graphics The high speed mode distinguishes text from graphics. Scanned text characters to be transmitted in the high speed mode are compared to characters in a library. When a match is found only a code, e.g. ASCII, and the location of the character is transmitted. Graphics and unrecognizable characters are transmitted as bit mapped pixels. When a document is received in the high speed mode, the received code identifies the text character and bit-mapped pixels to be printed or otherwise recorded in a storage medium. Any desired printing resolution can then be selected for text characters.
Inventors
- 👤 Mitchell Medina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00127; H04N1/00204; H04N1/00206; H04N1/32; H04N1/333; H04N1/33307; H04N2201/00; H04N2201/0008; H04N2201/0065; H04N2201/0068
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
133 words
A method of telefaxing documents, the method comprising the steps of: scanning a document with a document reader providing a digitized representation of the document; activating one of a standard speed mode and a high speed mode with a mode selector, the activated mode being compatible with an available mode at a destination telefacsimile; in the standard speed mode, formatting the digitized representation of the document into bit-mapped pixels and, in the high speed mode identifying, by character recognition techniques, character and non-character information in the document, and formatting the identified character information in an abbreviated code for each character and the non-character information into bit-mapped pixels; and transmitting from a transmitter the abbreviated codes and bit mapped pixels in the high speed mode and the bit mapped pixels in the standard mode.
Claim 2
Independent Claim
133 words
A method of telefaxing documents, the method comprising the steps of: scanning a document with a document reader providing a digitized representation of the document; activating one of a standard speed mode and a high speed mode with a mode selector, the activated mode being compatible with an available mode at a destination telefacsimile; in the standard speed mode, formatting the digitized representation of the document into bit-mapped pixels and, in the high speed mode identifying, by character recognition techniques, character and non-character information in the document, and formatting the identified character information in an abbreviated code for each character and the non-character information into bit-mapped pixels; and transmitting from a transmitter the abbreviated codes and bit mapped pixels in the high speed mode and the bit mapped pixels in the standard mode.
Claim 3
Dependent Claim
25 words
The method recited in claim 1, further comprising interrogating said destination telefacsimile and determining if a high speed mode is available at the destination telefacsimile.
Claim 4
Dependent Claim
40 words
The method recited in claim 2, wherein the step of interrogating said destination telefacsimile comprises transmitting from a mode interrogator a mode query signal to the destination telefacsimile and determining in a mode detector a response from the destination telefacsimile.
Claim 5
Dependent Claim
26 words
The method recited in claim 3, further comprising storing in a memory the response of the destination facsimile queried after transmission of said mode query signal.
Claim 6
Dependent Claim
34 words
The method recited in claim 4, further comprising referencing the stored response to select the mode of formatting of additional documents destined for said destination telefacsimile queried after transmission of said mode query signal.
Claim 7
Dependent Claim
18 words
The method recited in claim 4, further comprising referencing the stored response to select the mode of transmission.
Claim 8
Dependent Claim
39 words
The method recited in claim 3, wherein the mode detector measures a time from transmission of the mode query signal and, if a predetermined time elapses without detecting a response, directs the telefacsimile to set the standard telefacsimile mode.
Claim 9
Dependent Claim
18 words
The method recited in claim 1, wherein a text character separator isolates individual text characters from each other.
Claim 10
Dependent Claim
26 words
The method recited in claim 8, wherein a character recognizer determines if isolated text characters correspond to entries in a character library containing the abbreviated codes.
Claim 11
Dependent Claim
21 words
The method recited in claim 1, further comprising recording a representation of the document scanned in at least one storage medium.
Claim 12
Dependent Claim
20 words
The method recited in claim 1, further comprising distinguishing between text and graphics in the digitized representation of the document.
Claim 13
Dependent Claim
25 words
The method recited in claim 1 further comprising the step of receiving at a receiver documents in one of the standard and high speed modes.
Claim 14
Dependent Claim
27 words
The method recited in claim 12, further comprising the step of determining in said receiver one of the standard and high speed modes of an incoming document.
Claim 15
Dependent Claim
39 words
The method recited in claim 12, further comprising the step of selecting in said receiver one of the high speed mode and the standard mode to correspond with the mode of the incoming document indicated by a protocol signal.
Claim 16
Dependent Claim
27 words
The method recited in claim 12, further comprising the step of decoding in a decoder the abbreviated codes received for each character in the high speed mode.
Claim 17
Dependent Claim
124 words
A telefacsimile device comprising: a scanner, the scanner having a document reader with an output providing a digitized representation of a read document; a mode selector for activating one of (1) a standard telefacsimile mode and (2) a high speed mode, the activated mode being compatible with an available mode at a destination telefacsimile device; a scanner control and data interface, operative in the standard telefacsimile mode for formatting the digitized representation of the document into bit-mapped pixels, and operative in the high speed mode, to use character recognition techniques to format the digitized representation into identified character information in combination with non-character information, wherein said identified character information is formatted in abbreviation code and said non-character information is formatted into bit mapped pixels.
Claim 18
Dependent Claim
124 words
A telefacsimile device comprising: a scanner, the scanner having a document reader with an output providing a digitized representation of a read document; a mode selector for activating one of (1) a standard telefacsimile mode and (2) a high speed mode, the activated mode being compatible with an available mode at a destination telefacsimile device; a scanner control and data interface, operative in the standard telefacsimile mode for formatting the digitized representation of the document into bit-mapped pixels, and operative in the high speed mode, to use character recognition techniques to format the digitized representation into identified character information in combination with non-character information, wherein said identified character information is formatted in abbreviation code and said non-character information is formatted into bit mapped pixels.
Claim 19
Dependent Claim
31 words
The telefacsimile device recited in claim 16, further comprising a transmitter for transmitting said formatted digitized representation of the document in the selected one of the standard and high speed modes.
Claim 20
Dependent Claim
25 words
The telefacsimile device recited in claim 16, further comprising a receiver for receiving documents in a selected one of the standard and high speed modes.
Claim 21
Dependent Claim
30 words
The telefacsimile device recited in claim 16, wherein the mode selector further comprises said mode interrogator for determining if a high speed mode is available at said destination telefacsimile device.
Claim 22
Dependent Claim
38 words
The telefacsimile device recited in claim 19, wherein the mode interrogator comprises a signal generator for transmitting a mode query signal to said destination telefacsimile device and mode detector for determining a response from the destination telefacsimile device.
Claim 23
Dependent Claim
15 words
The telefacsimile device recited in claim 20, further comprising a memory for storing said response.
Claim 24
Dependent Claim
46 words
The telefacsimile device recited in claim 20, wherein the mode detector contains a timer for measuring a time from transmission of the mode query signal and for, if after a predetermined time elapses without detecting ak response, directing the telefacsimile to set the standard telefacsimile mode.
Claim 25
Dependent Claim
15 words
The telefacsimile device recited in claim 16, wherein the abbreviated code is an ASCII code.
Claim 26
Dependent Claim
23 words
The telefacsimile device recited in claim 18, wherein the receiver contains a receive mode detector for determining a mode of an incoming document.
Claim 27
Dependent Claim
42 words
The telefacsimile device recited in claim 24, wherein the receive mode detector contains a protocol analyzer for selecting one of the high speed mode and the standard mode to correspond with the mode of the incoming document indicated by a protocol signal.
Claim 28
Dependent Claim
21 words
The telefacsimile device recited in claim 18, further comprising a decoder for decoding abbreviated codes received in the high speed mode.
Claim 29
Dependent Claim
21 words
The telefacsimile device recited in claim 16, further comprising a text character separator for isolating individual text characters from each other.
Claim 30
Dependent Claim
29 words
The telefacsimile device recited in claim 27, further comprising a character library and a character recognizer for determining if isolated text characters correspond to entries in the character library.
Claim 31
Dependent Claim
18 words
The telefacsimile device recited in claim 28, wherein the entries in the character library contain the abbreviated codes.
Claim 32
Dependent Claim
30 words
The telefacsimile device recited in claim 16, wherein the scanner control and data interface further includes means for distinguishing between text and graphics in the digitized representation of the document.
Claim 33
Dependent Claim
22 words
The telefacsimile device recited in claim 16, further comprising at least on storage medium for recording a representation of said scanned document.
References Cited (Backward Citations)
US4000371A
Cited
US4034343A
Cited
US4410916A
Cited
JPS5654170A
Cited
JPS5757078A
Cited
JPS5763953A
Cited
JPS581374A
Cited
US4566127A
Cited
US4736249A
Cited
US4630126A
Cited
US4759053A
Cited
US4672459A
Cited
JPS60178766A
Cited
JPS60246153A
Cited
US4922545A
Cited
US4922349A
Cited
US5095445A
Cited
US4899225A
Cited
US5041915A
Cited
US5041917A
Cited
US5034990A
Cited
US5050004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-27 | 1997-06-28 | 1997-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-27 | 2001-06-28 | 2001-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-27 | 2005-06-28 | 2005-12-28 | $7700.00 | Window Closed / Lapsed |