US4547628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data transmission system
Assignee: Canon Inc
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Filing: 1985-03-12
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Granted: 1985-10-15
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Expires: 2005-03-12
Abstract
Abstract A data transmission system has a data converter for converting character code data into dot image data, and/or vice versa. The data converter has a memory and a pattern generator and/or a character recognition apparatus to perform such conversion. The system allows data transmission in either form with a smaller number of lines to connect respective stations, and also allows direct communication between the stations.
Inventors
- 👤 Yasuyuki Tamura
- 👤 Masaki Nakaoka
- 👤 Ken Miyagi
- 👤 Nao Nogashima
- 👤 Yasuhiko Sue
- 👤 Masashi Suda
- 👤 Masao Ariga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:34
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/41; H04N1/411
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
132 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending character code data onto the data transmission line; a second station for sending image data onto the data transmission line; a third station for processing any one of the character code data and the image data received from the data transmission line; and a converting station for receiving data sent from at least one of said first and second stations through the data transmission line, for converting data, between the character code data and the image data, which cannot be processed by said third station, into data which can be processed by said third station, and for sending out the data which can be processed by said third station onto the data transmission line.
Claim 2
Dependent Claim
132 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending character code data onto the data transmission line; a second station for sending image data onto the data transmission line; a third station for processing any one of the character code data and the image data received from the data transmission line; and a converting station for receiving data sent from at least one of said first and second stations through the data transmission line, for converting data, between the character code data and the image data, which cannot be processed by said third station, into data which can be processed by said third station, and for sending out the data which can be processed by said third station onto the data transmission line.
Claim 3
Dependent Claim
25 words
A system according to claim 1, wherein said first station comprises word-processing means for creating a sentence and generating the character code data corresponding thereto.
Claim 4
Dependent Claim
32 words
A system according to claim 1, wherein said second station comprises read means for reading an image by an image sensor and generating the image data representing black/white information of the image.
Claim 5
Dependent Claim
38 words
A system according to claim 1, wherein said converting station comprises memory means for storing a conversion table for converting the character code data or the image data to the image data or the character code data, respectively.
Claim 6
Dependent Claim
22 words
A data transmission system according to claim 1, wherein said stations are connected in a closed loop by a data transmission line.
Claim 7
Dependent Claim
113 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending character code data onto the data transmission line; a second station for sending the character code data onto the data transmission line, said second station being different from said first station; a third station for receiving the character code data sent from said first and second stations through the data transmission line, and converting the received character code data to image data which is sent onto the data transmission line; and a fourth station for receiving the image data sent from said third station through the data transmission line and processing the received image data.
Claim 8
Dependent Claim
113 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending character code data onto the data transmission line; a second station for sending the character code data onto the data transmission line, said second station being different from said first station; a third station for receiving the character code data sent from said first and second stations through the data transmission line, and converting the received character code data to image data which is sent onto the data transmission line; and a fourth station for receiving the image data sent from said third station through the data transmission line and processing the received image data.
Claim 9
Dependent Claim
22 words
A data transmission system according to claim 7, wherein said stations are connected in a closed loop by a data transmission line.
Claim 10
Dependent Claim
31 words
A system according to claim 6, wherein at least one of said first and second stations comprises word-processing means for creating a sentence and generating the character code data corresponding thereto.
Claim 11
Dependent Claim
24 words
A system according to claim 6, wherein said fourth station comprises print means for printing an image in accordance with the received image data.
Claim 12
Dependent Claim
28 words
A system according to claim 6, wherein said third station comprises memory means for storing a conversion table for converting the character code data to the image data.
Claim 13
Dependent Claim
27 words
A system according to claim 6, wherein said third station comprises data memory means for storing the character code data corresponding to a page of a document.
Claim 14
Dependent Claim
150 words
A data transmission system for transmitting data through a data transmission line, comprising: a transmitting station for sending character code data onto the data transmission line; a plurality of receiving stations, each of which receives image data from the data transmission line, can process the received image data and has a respective address associated therewith; and a converting station including memory means for storing the addresses of said receiving stations, an address of the receiving station being included in the data from said transmitting station to indicate the destination of the data, converting means for receiving the character code data sent from said transmitting station through the data transmission line and converting the received character code data to the image data, and means for transmitting, through the data transmission line, the image data from said converting means to the receiving station represented by the address stored in said memory means.
Claim 15
Dependent Claim
150 words
A data transmission system for transmitting data through a data transmission line, comprising: a transmitting station for sending character code data onto the data transmission line; a plurality of receiving stations, each of which receives image data from the data transmission line, can process the received image data and has a respective address associated therewith; and a converting station including memory means for storing the addresses of said receiving stations, an address of the receiving station being included in the data from said transmitting station to indicate the destination of the data, converting means for receiving the character code data sent from said transmitting station through the data transmission line and converting the received character code data to the image data, and means for transmitting, through the data transmission line, the image data from said converting means to the receiving station represented by the address stored in said memory means.
Claim 16
Dependent Claim
27 words
A system according to claim 12, wherein said converting station comprises data memory means for storing the character code data corresponding to a page of a document.
Claim 17
Dependent Claim
25 words
A system according to claim 12, wherein said transmitting station comprises word-processing means for creating a sentence and generating the character code data corresponding thereto.
Claim 18
Dependent Claim
24 words
A system according to claim 12, wherein said receiving station comprises print means for printing an image in accordance with the received image data.
Claim 19
Dependent Claim
28 words
A system according to claim 12, wherein said converting means comprises store means for storing a conversion table for converting the character code data to the image data.
Claim 20
Dependent Claim
134 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending one of character code data and image data onto the data transmission line; a second station for processing the character code data received from the data transmission line; a third station for processing the image data received from the data transmission line; and a converting station for receiving the data from said first station through the data transmission line, converting data, which cannot be processed by one of said second and third stations which is designated by said first station, to data which can be processed thereby, and sending, through the data transmission line, the data which can be processed to said one of said second and third stations which is designated by said first station.
Claim 21
Dependent Claim
134 words
A data transmission system for transmitting data through a data transmission line, comprising: a first station for sending one of character code data and image data onto the data transmission line; a second station for processing the character code data received from the data transmission line; a third station for processing the image data received from the data transmission line; and a converting station for receiving the data from said first station through the data transmission line, converting data, which cannot be processed by one of said second and third stations which is designated by said first station, to data which can be processed thereby, and sending, through the data transmission line, the data which can be processed to said one of said second and third stations which is designated by said first station.
Claim 22
Dependent Claim
49 words
A system according to claim 17, wherein said first station comprises one of word-processing means for creating a sentence and generating the character code data corresponding thereto, and reader means for reading an image by an image sensor and generating the image data representing black/white information of the image.
Claim 23
Dependent Claim
38 words
A system according to claim 17, wherein said converting station comprises memory means for storing a conversion table for converting the character code data or the image data to the image data or the character code data, respectively.
Claim 24
Dependent Claim
19 words
A system according to claim 17, wherein said stations are connected in closed loop by a data transmission line.
References Cited (Backward Citations)
US3967268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |