GB1274607A - Data displays - Google Patents
Data displaysInfo
- Publication number
- GB1274607A GB1274607A GB754571A GB754571A GB1274607A GB 1274607 A GB1274607 A GB 1274607A GB 754571 A GB754571 A GB 754571A GB 754571 A GB754571 A GB 754571A GB 1274607 A GB1274607 A GB 1274607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- columns
- characters
- store
- dots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/008—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes forming an image on an image carrier by relative movement of a writing unit to the image carrier, e.g. on a photoconductive rotating belt, or on an electronic blackboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
- B41J3/46—Printing mechanisms combined with apparatus providing a visual indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
- H04L21/04—Apparatus or local circuits for mosaic printer telegraph systems at the receiving end
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
1,274,607. Selective signalling. CREED & CO. Ltd. 23 March, 1971, No. 7545/71. Heading G4H. A visual display device displays characters from a keyboard on a drum, and includes a character-signal store activating a recording unit via a converter, the recording unit forming latent images on the drum as patterns of dots in a rectangular array. The store is two closed-loop shift registers in series and feeds two converters each controlling a respective column of 7 magnetic recording heads, the two columns being mounted 4 character widths apart on a belt assembly by which the columns can be moved together parallel to the axis of rotation of the drum to each record 4 characters each as 5 columns of 7 dots (present/absent). After such recording, the drum is rotated through 180 degrees and the recorded images are developed by a powder applicator to render them visible. The characters from the printer are also sent to a store associated with a remote line-at-a-time printer. When the line is complete, a key on the keyboard is pressed to cause printing at the remote location and to erase the display.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB754571A GB1274607A (en) | 1971-03-23 | 1971-03-23 | Data displays |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB754571A GB1274607A (en) | 1971-03-23 | 1971-03-23 | Data displays |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1274607A true GB1274607A (en) | 1972-05-17 |
Family
ID=9835187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB754571A Expired GB1274607A (en) | 1971-03-23 | 1971-03-23 | Data displays |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1274607A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2209168A1 (en) * | 1972-12-04 | 1974-06-28 | Rapifax Corp |
-
1971
- 1971-03-23 GB GB754571A patent/GB1274607A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2209168A1 (en) * | 1972-12-04 | 1974-06-28 | Rapifax Corp |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |