GB2133957A - Data display control - Google Patents
Data display control Download PDFInfo
- Publication number
- GB2133957A GB2133957A GB8401735A GB8401735A GB2133957A GB 2133957 A GB2133957 A GB 2133957A GB 8401735 A GB8401735 A GB 8401735A GB 8401735 A GB8401735 A GB 8401735A GB 2133957 A GB2133957 A GB 2133957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scrolling
- series
- display
- digital
- digital 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/0485—Scrolling or panning
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0338—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0489—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using dedicated keyboard keys or combinations thereof
- G06F3/04892—Arrangements for controlling cursor position based on codes indicative of cursor displacements from one discrete location to another, e.g. using cursor control keys associated to different directions or using the tab key
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
- H01H13/785—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2201/00—Contacts
- H01H2201/022—Material
- H01H2201/032—Conductive polymer; Rubber
- H01H2201/036—Variable resistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2203/00—Form of contacts
- H01H2203/02—Interspersed fingers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Apparatus for scrolling lines of data relative to a display area (1) comprises means (2) for producing a selectively controllable scrolling action, the means (2) including a transducer device (16) comprising two groups (18A, 18B) of contacts, each group including two sets (20, 21) (24, 25) of electrical contact tracks and an elastomeric pad, which includes a non-conductive member loaded with conductive material, whereby pressure on the member changes the conductivity thereof and in so doing progressive interconnects the tracks of the sets (20, 21) (24, 25) to produce analogue signals related to extent of pressure. A converter 9 converts the analogue signals to digital signals which are used to control direction and speed of scrolling. <IMAGE>
Description
SPECIFICATION
Data display control
This invention relates to data display control arrangements and methods of use thereof. In particular this invention is concerned with a control arrangement for control of the display of data contained in a store, i.e. RAM, by a display means having an instantaneous display capability, which is less than the amount of data required to be displayed.
It is known to deal with this problem by means of a technique called scrolling whereby electrical switch arrangements are provided for effectively controlling the relative movement of available display area with respect to the total amount of data to be displayed, or by moving the data relative to the available area. In practice, the material to be displayed is stepwise displayed with respect to the display area. The effect of this operation is that the material displayed appears to move across the display region in steps of varying size. It has been found that when displaying or scanning data which is presented upon a screen in a randomly disposed manner it is desirable that the steps of the stepwise scanning or scrolling should be as small as possible and at a rate at which an operator or reader is able to assimulate the data being displayed.A convenient, or satisfactory rate of scrolling is, for any operator or reader, a subjective matter and is governed by a number of factors which are in part related to the nature of the data to be presented, and the subjective response of the operator or reader to the reading operation.
Amongst the relevant factors there are:
(a) Reading rate of the operator or reader;
(b) Reading capability of the operator or reader;
(c) The speed at which the display responds to
an operator or reader demand;
(d) The nature of the data to be read:
(e) The amount of data to be read.
It has been found that the last factor has an important bearing upon the ease and facility by which the operator or reader is able to accommodate the reading of the data. If the amount of data is marginally or not very greatly larger than the display area, the reader usually is able effectively to ignore any inconveniences arising from scrolling rate, or the like.If the amount of data is very much greater than the display area-it has been found important that the operator or reader should be able readily
According to a first aspect of the invention there is provided a method of scrolling lines of data with respect to a display area of a data display unit, comprising the steps of producing first and second digital signals respectively characteristic of displacement of the display in a first sense, and in a second sense opposite to the first sense; producing first and second further digital signals respectively characteristic of the rate of displacement of the display in said first and second senses and establishing a selectively settable reference digital signal which determines a reference signal level for the first and second signals.
in accordance with a second aspect of the invention there is provided apparatus for scrolling lines of data relative to a display area of a data display apparatus, comprising means for producing a selectively controllable scrolling action including a transducer device for converting manual pressure into an electrical analogue output characteristic of an applied pressure; means for converting the analogue output into a series of digital signals of which at least one is arranged to be indicative of a particular direction of scrolling and such that two or more of the other digital signals are arranged to be indicative of the rate of scrolling in a said particular direction.
Conveniently the transducer device includes at least two conductive strips which are selectively electrically connectable by a conductive path comprising an elastomeric material having a conductivity/resistivity value per unit length which is variable according to the extent of distortion or compression of the material from a rest or ambient condition.
For a better understanding of the invention reference will now be made to the accompanying drawings in which;
Figure 1 is a schematic circuit diagram of a system incorporating the features of the invention.
Figure 2 is a schematic view of a detail of the system; and
Figure 3 is a schematic representation of a further detail of the system.
Referring now to Figure 1 which is a schematic diagram of a system incorporating the features of the invention a display unit is schematically shown at 1. The unit may be any conventional display unit responsive to digital input signals and having control circuits which allow relative up and down displacement between a window, cursor or the like, and a data display, or which enables a block of data to be displaced, up and down, relative to a display area which is to define a viewing or reading area of the display, and which control circuits are capable of being responsive to a change rate of relative displacement. Thus the display may be considered to have an 'Up' input 1 A, a 'Down' input 1 B, and a series of rate variation inputs ( 1 C~1 H) whereby rate of relative displacement may be controlled in both the 'Up' and 'Down' directions.The requisite inputs for the control of the relative display movements, are according to the features of the invention, derived from a manual control unit 2 which includes a pressure responsive operator controllable transducer assembly which enables the production on a first output 3 of a first analogue signal representative of the 'Up' display direction, and displacement rate control in this direction, and the production on a second output 4 of a second analogue signal representative of a demand for the 'Down' display direction and displacement rate control in this direction.
The output 3 or 4 of the assembly 2 connect with inputs 5, 6 of a differential device such as a differential amplifier 7, whose output 8 is connected to the analogue input of an analogue to digital convertor unit 9.
This convertor unit 9 is conveniently formed by any analogue to digital convertor which is preferably comprised by an integrated circuit arrangement providing a multibit output. Such a converter can be a microprocessor. The unit 9 provides from the analogue input applied thereto a series of eight digital output signals, at output terminals identified as 9A, 9B, 9C-9H in the
Figure 1. Of these digital output signals those appearing at the output terminals 9A, 9B are associated with the control of the directions of scrolling, i.e. Up and Down, and will in fact be represented by the uppermost digital values.
The remaining digital output signals applied to the output terminals 9C through 9H are associated with the variable rate of drive for the scrolling, with each such output terminal having applied thereto a predetermined digital signal value.
The output terminal 9A and 9B are connected to a pair of AND gates 10 and 11 (the AND gate 11 having invertors 12 at its two inputs) whose outputs 1 3, 14 respectively relate to the conditions: scrolling 'Up' and scrolling 'Down'.
The inter-relationship of the inputs to and outputs from the AND gates 10 and 11 can be conveniently defined by the relationships: scrolling 'Up' satisfies the condition 9A/9B, and the scrolling 'Down' satisfies the condition 9i.
In other words, the unit 9 is such that it is able to produce on its several digital output terminals, output signals in the digital value range 0--250.
For example, 1, 2,4, 8, 16, 32, 64, 128.
The two most significant bits 64 and 128 are respectively utilised in the establishment of a threshold level for an operational output and the direction of scrolling i.e. 'Up' or'Down'.
Thus the bit level. 128 is used to define a threshold level, and the next most significant bit 64 is used to control the direction of scrolling (i.e., 64 bits is indicative of an UPward scroll and NOT 64 as indicative of a DOWNward scroll. That is to say 128+64 establishes Upward scrolling and 128+64 establishes Downward scrolling.
The remaining bits 1, 2, 8, 16 and 32 of lower significance define the rate at which scrolling takes place.
The outputs 13, 14 of the AND gates 10 are connected with the inputs 1A and 1 B of the display unit 1. The output terminals 9C to 9H of the analogue to digital convertor unit 9 are connected to corresponding inputs 1 C to 1 H of the display unit 1.
Referring now to Figure 2, this Figure schematically illustrates an embodiment of the manual pressure control unit 2 for producing the requisite analogue input signals to the differential amplifier 7.
The unit of Figure 2 includes a printed circuit board assembly 16 having a substrate 17 of generally elongate rectangular form. The substrate carries two separate groups 1 8A, 1 8B of conductive tracks 19. The group 18A of conductive tracks 19 includes two separate sets 20, 21 of parallely arranged tracks 19. The tracks of the set 20 are electrically interconnected to a common further track 22 and the tracks of the set 21 are electrically interconnected to a common further track 23.
In the case of the group 1 8B the arrangement is similar to that of group 18A thus the group includes sets 24, 25 of parallely arranged tracks 1 9. The tracks of the set 24 are electrically interconnected as to a common further track 26, and the tracks of the set 25 are electrically interconnected to the common further track 23.
The track 23 is intended to be connectable to a driving voltage supply (not shown). The tracks 22 and 26 provide the outputs 3 and 4 of the unit 2 to the amplifier 7.
An elastomeric pad 27 (Figure 3) of plastics material conductivity is positioned over each said conductor group. One such material is known under the trade name "Prestaduct'. The doping can be by means of particles and granules, of an electrically conductive material having a predetermined characteristic resistance.
The elastomeric pads are protected by a sheet 28 of plastics material. Each elastomeric pad 27 has the property of changing its conductivity in response to the application of pressure to the material. Thus in the normal undepressed or ambient condition the material exhibits a first relatively high resistivity so that whilst the pad electrically contacts the two sets of strips of the associated group the electrical conductivity from set to set is at a minimum whereby the output current, delivered across the contact sets being connected by the elastomeric pad 27 is at a minimum.
On exerting manual pressure upon the elastomeric pad 27 there is a progressive change in the electrical conductivity of the pad in response to a pressure change so that the current flow therethrough increases in relation to the pressure applied. In practice, the electrical response to the pressure may be adjusted so that an initial pressure needs to be exerted in order to produce a response. That is to say a 'feel' condition may be built-in to the operation of the transducer arrangement by progressively increasing the amount of pressure that needs to be exerted to produce a correspondingly progressive change in the output current from the transducer switch unit can be obtained.
It will be understood that the response to pressure will be the same for both groups 18A, 18B of conductive tracks 19, and that since the effects upon the groups are essentially independent of each other, the control unit 2 effectively provides two separate control sections.
In practice, the output of one of the sections is associated with displacement of the display in a first direction and output of the other is associated with displacement of the display in the reverse direction. In practice, it is convenient to regard the transducer units as being respectively associated with UP and DOWN movements of the display 1.
The outputs of the two transducer sections are repsectively connected to the output lines 3, 4 and thus to the inputs of the differential amplifier which later produces an output whose amplitude is related to the sense and magnitude of the output of the control unit section.
Claims (11)
1. A method of scrolling lines of data with respect to a display area of a data display unit, comprising the steps of producing first and second digital signals respectively characteristic of displacement of the display in a first sense, and in a second sense opposite to the first sense; producing first and second further digital signals respectively characteristic of the rate of displacement of the display in said first and second senses and establishing a selectively settable reference digital signal which determines a reference signal level for the first and second signals.
2. A method as claimed in claim 1, in which the digital signals are initially produced in analogue form, and then converted into a series of digital signals, and in which the method also includes utilising one of the series to provide the threshold level output; comparing the threshold level with at least one of the digital outputs of the series to provide said first and second direction signals, and using the remaining digital signals of the series to represent the rates of display displacement in such manner that each such
remaining signal represents a predetermined level of digital value.
3. A method as claimed in claim 2, in which the analogue to digital conversion produces a series of discrete digital values, of which the most significant bit provides the threshold value, the next significant bit is used to control the scrolling direction, and the remaining bits define, according to their significance in the series thereof, the rate of scrolling.
4. A method as claimed in claim 3, and in which the next most significant bit in combination with the threshold value provides said first signal indicative of the first direction of scrolling and the
logical NOT function of the next most significant bit in combination with the threshold value
provides said second signal indicative of the opposite sense of scrolling.
5. Apparatus for scrolling lines of data relative to a display area of a data display apparatus,
comprising means for producing a selectively controllable scrolling action including a transducer device for converting manual pressure
into an electrical analogue output characteristic of
an applied pressure; means for converting the
analogue output into a series of digital signals of which at least one is arranged to be indicative of a particular direction of scrolling and such that two or more of the other digital signals are arranged to be indicative of the rate of scrolling in a said particular direction.
6. Apparatus as claimed in claim 5, and in which the most significant bit value of the series of digital signals provides a threshold reference signal value with respect to which a selected direction of displacement may be set, and in which the next most signifcant bit value of the series is utilised to control direction of scrolling and the remaining bit values of the series are arranged to define according to their significance in the series thereof the rate of display scrolling.
7. Apparatus as claimed in claim 6, and which means are provided for combining said next most significant bit value of the series with the threshold value thereby to produce a first signal indicative of a first direction of scrolling and in which means are provided for combining the logic
NOT function of the next most significant bit with said threshold value thereby to produce a second signal indicative of the direction of scrolling opposite to the first.
8. Apparatus as claimed in any one of claims 5, 6 or 7, and in which the transducer device includes at least two conductive strips, and an elastomeric element for providing a conductive path between the strips, said elastomeric element having a conductivity/resistivity per unit length which is selectively variable according to the extent of distortion or compression of the material of the elastomeric element from a rest or ambient condition.
9. Apparatus as claimed in claim 8, and in which the conductive strips are arranged to provide two separate groups of conductive tracks, each such group comprising two sets of parallely arranged tracks, with the tracks of one set electrically connected to a common further track and with the tracks of the other set electrically connected to a common additional track and in which electrical signals carried by the common further tracks of each set provide outputs from the transducer device.
10. Apparatus as claimed in claim 9, in which the elastomeric element includes a sheet, pad or the like of plastics material doped or loaded so as to exhibit a predetermined conductivity which over lines said conductive strips, whereby on existing manual pressure on the strips, the resulting change in conductivity thereof correspondingly varies the magnitude of electrical conduction between the two groups of a selected set.
11. Apparatus for scrolling lines of data relative to a display area of a data display apparatus constructed and arranged to operate substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8401735A GB2133957B (en) | 1983-01-26 | 1984-01-24 | Data display control |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB838302094A GB8302094D0 (en) | 1983-01-26 | 1983-01-26 | Data display control |
| GB8401735A GB2133957B (en) | 1983-01-26 | 1984-01-24 | Data display control |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8401735D0 GB8401735D0 (en) | 1984-02-29 |
| GB2133957A true GB2133957A (en) | 1984-08-01 |
| GB2133957B GB2133957B (en) | 1986-12-17 |
Family
ID=26285022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8401735A Expired GB2133957B (en) | 1983-01-26 | 1984-01-24 | Data display control |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2133957B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0242774A1 (en) * | 1986-04-16 | 1987-10-28 | Siemens Aktiengesellschaft | Arrangement for moving symbols on a display screen |
| EP0440364A2 (en) * | 1990-01-23 | 1991-08-07 | Crosfield Electronics Limited | Image handling apparatus |
| EP0730761A1 (en) * | 1993-11-23 | 1996-09-11 | Roca Productions, Inc. | Electronically simulated rotary-type cardfile |
| WO1998000775A1 (en) * | 1996-07-03 | 1998-01-08 | Stratos Product Development Group | Touchpad with scroll and pan regions |
| WO2001045123A1 (en) * | 1998-09-04 | 2001-06-21 | Armstrong Brad A | Remote controller with pressure sensitive buttons |
| WO2001084293A2 (en) * | 2000-05-03 | 2001-11-08 | Voelckers Oliver | Method for controlling a one-dimensional cursor by evaluating the force exerted onto a key |
| EP1247158A2 (en) * | 2000-01-14 | 2002-10-09 | Sony Computer Entertainment Inc. | Recording medium, method of entering items to be displayed and computer for executing the method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222525B1 (en) | 1992-03-05 | 2001-04-24 | Brad A. Armstrong | Image controllers with sheet connected sensors |
| US8674932B2 (en) | 1996-07-05 | 2014-03-18 | Anascape, Ltd. | Image controller |
-
1984
- 1984-01-24 GB GB8401735A patent/GB2133957B/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0242774A1 (en) * | 1986-04-16 | 1987-10-28 | Siemens Aktiengesellschaft | Arrangement for moving symbols on a display screen |
| EP0440364A2 (en) * | 1990-01-23 | 1991-08-07 | Crosfield Electronics Limited | Image handling apparatus |
| EP0440364A3 (en) * | 1990-01-23 | 1993-06-02 | Crosfield Electronics Limited | Image handling apparatus |
| US5289168A (en) * | 1990-01-23 | 1994-02-22 | Crosfield Electronics Ltd. | Image handling apparatus and controller for selecting display mode |
| EP0730761A1 (en) * | 1993-11-23 | 1996-09-11 | Roca Productions, Inc. | Electronically simulated rotary-type cardfile |
| EP0730761A4 (en) * | 1993-11-23 | 1997-02-19 | Roca Productions Inc | Electronically simulated rotary-type cardfile |
| US5739744A (en) * | 1993-11-23 | 1998-04-14 | Roca; Robert John | Electronically simulated rotary-type cardfile |
| WO1998000775A1 (en) * | 1996-07-03 | 1998-01-08 | Stratos Product Development Group | Touchpad with scroll and pan regions |
| WO2001045123A1 (en) * | 1998-09-04 | 2001-06-21 | Armstrong Brad A | Remote controller with pressure sensitive buttons |
| EP1247158A2 (en) * | 2000-01-14 | 2002-10-09 | Sony Computer Entertainment Inc. | Recording medium, method of entering items to be displayed and computer for executing the method |
| WO2001084293A2 (en) * | 2000-05-03 | 2001-11-08 | Voelckers Oliver | Method for controlling a one-dimensional cursor by evaluating the force exerted onto a key |
| WO2001084293A3 (en) * | 2000-05-03 | 2002-04-11 | Oliver Voelckers | Method for controlling a one-dimensional cursor by evaluating the force exerted onto a key |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2133957B (en) | 1986-12-17 |
| GB8401735D0 (en) | 1984-02-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |