GB1311503A - Display device including roll and crawl capabilities - Google Patents
Display device including roll and crawl capabilitiesInfo
- Publication number
- GB1311503A GB1311503A GB1990270A GB1990270A GB1311503A GB 1311503 A GB1311503 A GB 1311503A GB 1990270 A GB1990270 A GB 1990270A GB 1990270 A GB1990270 A GB 1990270A GB 1311503 A GB1311503 A GB 1311503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- character
- characters
- crawl
- displayed
- roll
- 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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/34—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators for rolling or scrolling
- G09G5/343—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators for rolling or scrolling for systems having a character code-mapped display memory
Abstract
1311503 Cathode-ray tube displays A B DICK CO 24 April 1970 [9 June 1969] 19902/70 Heading H4T In a data display arrangement lines of characters are made to " roll " upwardly from the bottom towards the top of the display and the characters themselves are made to " crawl " in lines from right to left across the display the speed of both the " roll " and " crawl " being adjustable. The characters are produced by bright-up of the beam of a display cathode-ray tube (operating at normal television frequencies) in the form of a 9 x 11 dot matrix (Fig. 5) a " guard-band " of five dot spaces being provided for inter-character spacing and of three dot spaces for interline spacing. Referring to Fig. 2, a core memory 40 is loaded with character data from a keyboard 14 (or a tape reader 12) at addresses determined by the position of a cursor (displayed at half the character intensity) so that, in the read mode in normal operation, the stored data is displayed in respective corresponding positions on the tube screen. In the normal read mode the memory 40 is addressed under the control of character and line counters 24, 26 which are stepped-on by the outputs, at full count, of X and Y matrix counters 34, 36 the data read-out being supplied via a register 42 and decoder 44 to a video selector 30. The X and Y matrix counters 34, 36 (Fig. 4, not shown) determine a 12 x 14 matrix (i.e. the 9 x 12 character matrix plus the guard bands) and control a character generator 38 which generates the bright-up (video) signals required to produce each of the characters the system is capable of displaying-e.g. 64 Alpha-Numeric characters. The signals corresponding to the output of decoder 44 are then passed by video selector 30 to a mixer 50 in which they are combined with the cursor signal and the output of the mixer then forms the bright-up (video) signals for a conventional TV monitor 57 the scanning of which is controlled by an external synch. source 16. The display comprises 16 lines each of 24 characters. Thus, in the normal read mode, the characters are read out of the memory 40 and displayed in positions corresponding to respective positions in the memory under the control of the character and line counters 24, 26 which are advanced, when the X and Y matrix generators 34, 36 reach full count, by one count for each character and for each line respectively which are displayed, both counters being reset by the vertical synch. signals of the system. In the " roll " or " crawl" read mode the counters 24 and 26 are not reset at the beginning of each field and of " roll " or " crawl " keys on the keyboard (Figs. 9A to 9D, none shown) operate to introduce a substitute row-column counter the output of which supplies a count of the number of lines (in the " roll " mode) and of the number of characters (in the " crawl " mode) and provides the resetting pulses for the X and Y matrix generators. The operation then consists of periodically incrementing the count in counter 26 or counter 24 (for " roll " or " crawl " respectively) by one count so that the core memory 40 is addressed at a different address and the line of characters or the individual character are displayed at positions which are one line position up the screen or one character position to the left of the position at which they would otherwise be displayed. The effect of the resulting motion is enhanced by blanking the top and bottom character row positions and the extreme left and right hand side character column positions and in order to avoid the appearance of jumping, the start of the first line to be displayed may be progressively delayed by intervals of 14 down to 1 horizontal synch. pulses in a repeating cycle the period of which may be varied to vary the speed of the display motion. This speed may be selected by keys to be fast or slow but if no speed is selected an intermediate speed results. New data may be entered into the memory during the 16th line or 24th character display periods, i.e. when the display is blanked, to produce a continuous " roll " or " crawl " effect. The displayed data may be made to flicker by means of a flush control circuit 46 in response to non-viewable, stored control data. Specification 1,251,689 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83168769A | 1969-06-09 | 1969-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1311503A true GB1311503A (en) | 1973-03-28 |
Family
ID=25259620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1990270A Expired GB1311503A (en) | 1969-06-09 | 1970-04-24 | Display device including roll and crawl capabilities |
Country Status (7)
Country | Link |
---|---|
US (1) | US3614766A (en) |
BE (1) | BE751576A (en) |
CA (1) | CA928823A (en) |
DE (1) | DE2028344B2 (en) |
FR (1) | FR2056244A5 (en) |
GB (1) | GB1311503A (en) |
NL (1) | NL7008364A (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4209852A (en) * | 1974-11-11 | 1980-06-24 | Hyatt Gilbert P | Signal processing and memory arrangement |
US3683359A (en) * | 1971-04-30 | 1972-08-08 | Delta Data Syst | Video display terminal with automatic paging |
US3683360A (en) * | 1971-07-01 | 1972-08-08 | Tokyo Shibaura Electric Co | Control devices for display apparatus |
US3688299A (en) * | 1971-07-01 | 1972-08-29 | Tokyo Shibaura Electric Co | Control device for display apparatus |
US3742482A (en) * | 1971-09-08 | 1973-06-26 | Bunker Ramo | Method and apparatus for generating a traveling display |
US3953764A (en) * | 1971-09-29 | 1976-04-27 | Delta-X Corporation | Method and means for selectively positioning a light source for illuminating film transparencies |
US3746793A (en) * | 1972-08-09 | 1973-07-17 | Phonics Corp | Telephone communication system for the hearing impaired |
GB1434777A (en) * | 1973-01-10 | 1976-05-05 | Siemens Ag | Character representation systems |
US3787833A (en) * | 1973-05-04 | 1974-01-22 | Gte Information Syst Inc | Upshift control for video display |
US3925765A (en) * | 1973-10-29 | 1975-12-09 | Hughes Aircraft Co | Digital raster rotator |
US3903510A (en) * | 1973-11-09 | 1975-09-02 | Teletype Corp | Scrolling circuit for a visual display apparatus |
US4054948A (en) * | 1975-10-14 | 1977-10-18 | Realty & Industrial Corporation | Proportional spacing and electronic typographic apparatus |
US3988728A (en) * | 1975-10-20 | 1976-10-26 | Yokogawa Electric Works, Ltd. | Graphic display device |
US4112423A (en) * | 1976-09-13 | 1978-09-05 | Kelsey-Hayes Co. | Dual-screen data display terminal for data processing units |
US4355814A (en) * | 1977-02-22 | 1982-10-26 | Sanders Associates, Inc. | Video game symbol generation and control apparatus |
US4161718A (en) * | 1977-06-20 | 1979-07-17 | Motorola Israel Ltd. | Supervisory control system |
US4471463A (en) * | 1979-01-08 | 1984-09-11 | Atari, Inc. | Data processing system with programmable graphics generator |
US4342454A (en) * | 1979-01-08 | 1982-08-03 | Sanders Associates, Inc. | Method and apparatus for instant replay and other capabilities for microprocessor-controlled video games |
DE2909660C3 (en) * | 1979-03-12 | 1981-12-17 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Method and device for displaying information in alphanumeric form on a display device operating according to the line grid method |
US4249172A (en) * | 1979-09-04 | 1981-02-03 | Honeywell Information Systems Inc. | Row address linking control system for video display terminal |
US4442495A (en) * | 1980-02-27 | 1984-04-10 | Cadtrak Corporation | Real time toroidal pan |
JPS5756885A (en) * | 1980-09-22 | 1982-04-05 | Nippon Electric Co | Video address control device |
US4435776A (en) | 1981-01-27 | 1984-03-06 | Syntrex Incorporated | Word processing system |
GB2145910B (en) * | 1983-09-01 | 1987-10-07 | Philips Electronic Associated | Data display arrangement with scrolling |
US4641255A (en) * | 1985-05-22 | 1987-02-03 | Honeywell Gmbh | Apparatus for simulation of visual fields of view |
US5129060A (en) * | 1987-09-14 | 1992-07-07 | Visual Information Technologies, Inc. | High speed image processing computer |
US4985848A (en) * | 1987-09-14 | 1991-01-15 | Visual Information Technologies, Inc. | High speed image processing system using separate data processor and address generator |
US5109348A (en) * | 1987-09-14 | 1992-04-28 | Visual Information Technologies, Inc. | High speed image processing computer |
US5146592A (en) * | 1987-09-14 | 1992-09-08 | Visual Information Technologies, Inc. | High speed image processing computer with overlapping windows-div |
KR100666549B1 (en) * | 2003-11-27 | 2007-01-09 | 삼성에스디아이 주식회사 | AMOLED and Driving method thereof |
TW200820122A (en) * | 2006-10-18 | 2008-05-01 | Via Tech Inc | Dithering method and apparatus for image data |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3406387A (en) * | 1965-01-25 | 1968-10-15 | Bailey Meter Co | Chronological trend recorder with updated memory and crt display |
US3422420A (en) * | 1966-03-23 | 1969-01-14 | Rca Corp | Display systems |
-
1969
- 1969-06-09 US US831687A patent/US3614766A/en not_active Expired - Lifetime
-
1970
- 1970-04-14 CA CA080123A patent/CA928823A/en not_active Expired
- 1970-04-24 GB GB1990270A patent/GB1311503A/en not_active Expired
- 1970-06-05 BE BE751576D patent/BE751576A/en unknown
- 1970-06-08 FR FR7020916A patent/FR2056244A5/fr not_active Expired
- 1970-06-09 NL NL7008364A patent/NL7008364A/xx unknown
- 1970-06-09 DE DE2028344A patent/DE2028344B2/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3614766A (en) | 1971-10-19 |
NL7008364A (en) | 1970-12-11 |
DE2028344B2 (en) | 1974-03-28 |
DE2028344A1 (en) | 1970-12-17 |
BE751576A (en) | 1970-11-16 |
CA928823A (en) | 1973-06-19 |
FR2056244A5 (en) | 1971-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |