GB1330548A - Data idsplay systems - Google Patents
Data idsplay systemsInfo
- Publication number
- GB1330548A GB1330548A GB3910271A GB3910271A GB1330548A GB 1330548 A GB1330548 A GB 1330548A GB 3910271 A GB3910271 A GB 3910271A GB 3910271 A GB3910271 A GB 3910271A GB 1330548 A GB1330548 A GB 1330548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- character
- store
- bit output
- supplies
- signals
- 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
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/08—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
- G09G1/10—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system the deflection signals being produced by essentially digital means, e.g. incrementally
Abstract
1330548 Cathode-ray tube displays SIEMENS AG 20 Aug 1971 [25 Aug 1970] 39102/71 Heading H4T In a data display system in which characters formed from one or more straight lines are displayed on the screen of a cathode-ray tube by producing unit (X, Y) deflections of the beam within a notional co-ordinate grid which has the same shape and dimensions for each character, the operation is controlled by an image-generator which includes a fixed-value store containing a separate information block, each having the same number of words, for each character, a desired block address is selected by signals from an image repeater store which, driven by a synchronous counter, repeatedly and successively supplies signals indicating the characters to be displayed, the address of a word within a block is determined by the synchronous or another counter and the output of the fixed value store is supplied to a read-out register which supplies an output describing the beam control required to display the selected character. As shown in Fig. 1, coded (7-bits and parity bit character) indicating signals derived from the image-repeater store (not shown) are fed serially to a shift register 11 which supplies a 7- bit output to a recoder 12 supplying one 6-bit output comprising control signals (e.g. beam bright-up signals) to a logic circuit 13 and a second 6-bit output comprising character indicating signals to the fixed value store 14. A character code Zc (see Figs 2a and 2b which show two possible organizations of the store 14) comprising the latter output addresses the required block B1-B64 and the count Z of the synchronous counter 15 (of the image repeater store), which supplies a 5-bit output, addresses the required word W. The store 14, which comprises a pre-wired magnetic core store then supplies, via a readout register 16, a 4-bit output specifying (see Fig. 3a) the sign and magnitude (= stroke or no stroke) Vx, V and Vy, Y of the X and Y deflections respectively required to trace the character, to a logic circuit 21 which produces the actual beam deflection quantities TX, TY and additionally, supplies a single bit output, specifying beam blank-unblank H/D, to the logic circuit 13. The 4-bit output from readout register 16 is also supplied to position registers 17, 18 which, via respective D-A converters 19, 20, provide outputs HSx, HSy for holding the beam at required positions within a character and because the time of reproduction of each character is constant (since each character consists of the same number of words) the position of a character on the screen is indicated by the count of counter 15 and such count is supplied via switch 24 (closed except during frame (BR) and line (ZR) fly-back) to a D-A converter 22 which provides outputs Hx, Hy for holding the character grid at successive positions on the screen during the tracing of a character, whilst the last character element W20 operates to displace the beam to the origin An from which the tracing of the next character commences. During frame and line fly-back periods the signals producing the latter via D-A converter 23 open switch 24 to interrupt the count supplied to D-A converter for the fly-back intervals. Fig. 3a, shows the pattern of the 5-bit output from read-out register 16 (Fig. 1) for word elements W1-W20 concerned in the tracing of the character A (Fig. 3b). Details of the logic circuits 13 and 21 are described with respect to Fig. 4 (not shown) and of the position registers 17 and 18 with respect to Figs. 5a and 5b respectively (neither shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702042143 DE2042143A1 (en) | 1970-08-25 | 1970-08-25 | Image generator for data display devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1330548A true GB1330548A (en) | 1973-09-19 |
Family
ID=5780689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3910271A Expired GB1330548A (en) | 1970-08-25 | 1971-08-20 | Data idsplay systems |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE771747R (en) |
CH (1) | CH524863A (en) |
DE (1) | DE2042143A1 (en) |
FR (1) | FR2131196A6 (en) |
GB (1) | GB1330548A (en) |
IT (1) | IT985510B (en) |
LU (1) | LU63761A1 (en) |
NL (1) | NL7111454A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334286A (en) | 1978-08-14 | 1982-06-08 | International Business Machines Corporation | Data entry apparatus for entering tabular data row by row and column by column |
US4554637A (en) * | 1981-08-19 | 1985-11-19 | Siemens Aktiengesellschaft | Method for reducing the redundancy of binary character sequences for matrix printing |
CN114927108A (en) * | 2022-06-10 | 2022-08-19 | 凯瑞威尔(苏州)科技有限公司 | Display screen backlight device and method based on serial communication |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750083A (en) * | 1980-09-11 | 1982-03-24 | Canon Inc | Recording device |
-
1970
- 1970-08-25 DE DE19702042143 patent/DE2042143A1/en active Pending
-
1971
- 1971-07-02 CH CH975271A patent/CH524863A/en not_active IP Right Cessation
- 1971-08-19 NL NL7111454A patent/NL7111454A/xx unknown
- 1971-08-20 GB GB3910271A patent/GB1330548A/en not_active Expired
- 1971-08-23 LU LU63761D patent/LU63761A1/xx unknown
- 1971-08-24 IT IT2778271A patent/IT985510B/en active
- 1971-08-25 FR FR7130844A patent/FR2131196A6/fr not_active Expired
- 1971-08-25 BE BE771747A patent/BE771747R/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334286A (en) | 1978-08-14 | 1982-06-08 | International Business Machines Corporation | Data entry apparatus for entering tabular data row by row and column by column |
US4554637A (en) * | 1981-08-19 | 1985-11-19 | Siemens Aktiengesellschaft | Method for reducing the redundancy of binary character sequences for matrix printing |
CN114927108A (en) * | 2022-06-10 | 2022-08-19 | 凯瑞威尔(苏州)科技有限公司 | Display screen backlight device and method based on serial communication |
Also Published As
Publication number | Publication date |
---|---|
CH524863A (en) | 1972-06-30 |
LU63761A1 (en) | 1972-04-04 |
NL7111454A (en) | 1972-02-29 |
IT985510B (en) | 1974-12-10 |
DE2042143A1 (en) | 1972-03-02 |
BE771747R (en) | 1972-02-25 |
FR2131196A6 (en) | 1972-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |