US4199757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character display apparatus
Assignee: Toshiba Corp
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Filing: 1978-01-19
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Granted: 1980-04-22
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Expires: 1998-01-19
Abstract
Abstract A character display apparatus comprises a temporary memory unit for temporarily storing the internal data read out from a memory unit, a converting circuit for converting every given length of the internal data stored in the memory unit into numerical information, a display unit for displaying the numerical information delivered from the converting circuit in terms of an alphanumerical code in accordance with the contents of the numerical information.
Inventors
- 👤 Akira Ichimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/22; G09G5/222; G06; G06F; G06F11/00; G06F11/30; G06F11/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A character display apparatus comprising: a temporary memory unit for temporarily storing internal data read out from a memory unit; a converting circuit for converting every given length of said internal data supplied from said memory unit into numerical information, said converting circuit including a plurality of ROMs for receiving information signals of the same number of bits produced by dividing said internal data sent from said memory unit and for producing said numerical information in terms of an alphanumerical code in accordance with said information signals, a plurality of buffer memories for temporarily storing said numerical information delivered from said ROMs and said converting circuit further comprising a selector circuit for reading out said numerical information from said buffer memory in a given succession; and a display unit for displaying said numerical information delivered from said converting circuit in terms of an alphanumerical code in accordance with the contents of said numerical information.
Claim 2
Dependent Claim
154 words
A character display apparatus comprising: a temporary memory unit for temporarily storing internal data read out from a memory unit; a converting circuit for converting every given length of said internal data supplied from said memory unit into numerical information, said converting circuit including a plurality of ROMs for receiving information signals of the same number of bits produced by dividing said internal data sent from said memory unit and for producing said numerical information in terms of an alphanumerical code in accordance with said information signals, a plurality of buffer memories for temporarily storing said numerical information delivered from said ROMs and said converting circuit further comprising a selector circuit for reading out said numerical information from said buffer memory in a given succession; and a display unit for displaying said numerical information delivered from said converting circuit in terms of an alphanumerical code in accordance with the contents of said numerical information.
Claim 3
Dependent Claim
127 words
A character display apparatus comprising: a buffer register for temporarily storing internal data read out from a memory unit; a converting unit for dividing said internal data from said buffer register into two information signals each having a predetermined length and for producing numerical information by combining alphabetical codes, alphabetical codes and numerical codes, or numerical codes according to the contents of said information signals; a display memory for successively storing numerical information from said converting unit; a character generator for generating character codes corresponding to said numerical information read out from said display memory; a video signal generator for converting said character codes into video signals; and a cathode ray tube for displaying said character codes according to said video signals from said video signal generator.
Claim 4
Dependent Claim
127 words
A character display apparatus comprising: a buffer register for temporarily storing internal data read out from a memory unit; a converting unit for dividing said internal data from said buffer register into two information signals each having a predetermined length and for producing numerical information by combining alphabetical codes, alphabetical codes and numerical codes, or numerical codes according to the contents of said information signals; a display memory for successively storing numerical information from said converting unit; a character generator for generating character codes corresponding to said numerical information read out from said display memory; a video signal generator for converting said character codes into video signals; and a cathode ray tube for displaying said character codes according to said video signals from said video signal generator.
Claim 5
Dependent Claim
208 words
A character display apparatus comprising: a buffer register for temporarily storing internal data read out from a memory unit; a converting unit for dividing said internal data from said buffer register into two information signals each having a predetermined length and for producing numerical information by combining alphabetical codes, alphabetical codes and numerical codes, or numerical codes according to the contents of said information signals, said converting unit comprising a plurality of ROMs for receiving information signals of the same number of bits produced by dividing said internal data from said memory unit and for producing said numerical information in accordance with said information signals; a plurality of buffer memories for temporarily storing said numerical information from said ROMs; and a selector circuit for reading out said numerical information from said buffer memory in a given succession and feeding said numerical information to said display unit; a display memory for successively storing numerical information from said converting unit; a character generator for generating character codes corresponding to said numerical information read out from said display memory; a video signal generator for converting said character codes into video signals; and a cathode ray tube for displaying the character codes according to the video signals from said video signal generator.
Claim 6
Dependent Claim
208 words
A character display apparatus comprising: a buffer register for temporarily storing internal data read out from a memory unit; a converting unit for dividing said internal data from said buffer register into two information signals each having a predetermined length and for producing numerical information by combining alphabetical codes, alphabetical codes and numerical codes, or numerical codes according to the contents of said information signals, said converting unit comprising a plurality of ROMs for receiving information signals of the same number of bits produced by dividing said internal data from said memory unit and for producing said numerical information in accordance with said information signals; a plurality of buffer memories for temporarily storing said numerical information from said ROMs; and a selector circuit for reading out said numerical information from said buffer memory in a given succession and feeding said numerical information to said display unit; a display memory for successively storing numerical information from said converting unit; a character generator for generating character codes corresponding to said numerical information read out from said display memory; a video signal generator for converting said character codes into video signals; and a cathode ray tube for displaying the character codes according to the video signals from said video signal generator.
References Cited (Backward Citations)
US3444319A
Cited
US3696387A
Cited
US3849773A
Cited
US3750135A
Cited
US3821730A
Cited
US4041482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |