GB1308548A - Position indicating system - Google Patents
Position indicating systemInfo
- Publication number
- GB1308548A GB1308548A GB1312970A GB1312970A GB1308548A GB 1308548 A GB1308548 A GB 1308548A GB 1312970 A GB1312970 A GB 1312970A GB 1312970 A GB1312970 A GB 1312970A GB 1308548 A GB1308548 A GB 1308548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- transducers
- signals
- march
- represent
- 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
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
-
- 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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
- G06F3/04142—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
Abstract
1308548 Co-ordinate determining arrangement THOMSON - CFS VISUALISATION ET TRAITEMENT DES INFORMATIONS 18 March 1970 [19 March 1969; 31 March 1969] 13129/70 Heading G1N [Also in Divisions G4 and H4] The co-ordinates of the position M on a rigid plate at which a force is applied (for example by a finger) is determined from the signals derived from transducers supporting the plate. As shown for piezo-electric transducers C 1 - C 4 are disposed in a square and the sides C 2 C 1 and C 2 C 3 represent the X and Y axes respectively. If X and Y represent the co-ordinates of the point M on the plate 8 at which the force is applied and F 1 , F 2 , F 3 , F 4 represent the reaction forces sensed by the transducers then, F 1 +F 2 +F 3 +F 4 = F, and by taking moments X = K(F 1 +F 4 )/F and Y = K(F 3 +F 4 )/F Signals G 1 , G 2 , G 3 , G 4 Fig. 2 (not shown) proportional to the respective forces are derived from the transducers and integrated, G 1 and G 4 being added at 51, 63 and G 4 being added at 53, and all four being added at 52, division circuits 61, 62 then being provided so that output signals H 1 , H 2 representative of X and Y are derived. To overcome the effect of extraneous signals due to vibration an OR gate 2 and a threshold circuit 3 are provided to control gates 41 ..... 44 upstream of the adders. If A-D converters are provided after the integrators 11 ..... 14, the circuit may be designed thereafter in a digital form. In a modification Fig. 3 (not shown), the sensors are piezo-electric devices are of a type that resonate and have a Q factor dependent on the applied pressure. These devices are fed with a signal at their resonate frequency, the amplitude of the output obtained (which is dependent on the Q factor and hence the forces) being utilized in a circuit similar to that of Fig. 2 (not shown). If the plate 8 is of glass and disposed above a cathode ray tube screen the signals H 1 H 2 obtained by pressing on the plate may be utilized to trace curves on the screen. The plate 8 may be suspended by extensionresponsive transducers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6907845A FR2038566A5 (en) | 1969-03-19 | 1969-03-19 | |
| FR6909921A FR2044846A6 (en) | 1969-03-19 | 1969-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1308548A true GB1308548A (en) | 1973-02-21 |
Family
ID=26214914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1312970A Expired GB1308548A (en) | 1969-03-19 | 1970-03-18 | Position indicating system |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE747533A (en) |
| DE (1) | DE2013132C3 (en) |
| FR (2) | FR2038566A5 (en) |
| GB (1) | GB1308548A (en) |
| NL (1) | NL160958C (en) |
| SE (1) | SE360464B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121357A (en) * | 1982-06-01 | 1983-12-21 | Roland Man Druckmasch | Arrangement for monitoring and controlling printing presses |
| GB2125971A (en) * | 1982-08-23 | 1984-03-14 | Rca Corp | Determining the location at which a force is applied to a member |
| WO1989001610A1 (en) * | 1987-08-21 | 1989-02-23 | Justing Electronics Oy | A method and a device for measuring the dimensions of elongated and/or planar objects |
| WO2008080925A1 (en) | 2006-12-28 | 2008-07-10 | Arcelik Anonim Sirketi | A user interface |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389711A (en) * | 1979-08-17 | 1983-06-21 | Hitachi, Ltd. | Touch sensitive tablet using force detection |
| DE3410524A1 (en) * | 1984-03-22 | 1985-10-03 | Vdo Schindling | PRESSURE SWITCH |
| DE3904702C1 (en) * | 1989-02-16 | 1990-07-26 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | Keyboard with definable keys |
| DE3934333C1 (en) * | 1989-10-14 | 1991-03-21 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | Tilt plate type keyboard with quartz pressure sensors - uses computer storing geometrical position of each key surface |
| DE202007016806U1 (en) * | 2007-11-29 | 2008-03-20 | Fröbel, Eckhard | input display |
-
1969
- 1969-03-19 FR FR6907845A patent/FR2038566A5/fr not_active Expired
- 1969-03-31 FR FR6909921A patent/FR2044846A6/fr not_active Expired
-
1970
- 1970-03-18 SE SE03636/70A patent/SE360464B/xx unknown
- 1970-03-18 NL NL7003877.A patent/NL160958C/en not_active IP Right Cessation
- 1970-03-18 GB GB1312970A patent/GB1308548A/en not_active Expired
- 1970-03-18 BE BE747533D patent/BE747533A/en unknown
- 1970-03-19 DE DE2013132A patent/DE2013132C3/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121357A (en) * | 1982-06-01 | 1983-12-21 | Roland Man Druckmasch | Arrangement for monitoring and controlling printing presses |
| GB2125971A (en) * | 1982-08-23 | 1984-03-14 | Rca Corp | Determining the location at which a force is applied to a member |
| WO1989001610A1 (en) * | 1987-08-21 | 1989-02-23 | Justing Electronics Oy | A method and a device for measuring the dimensions of elongated and/or planar objects |
| WO2008080925A1 (en) | 2006-12-28 | 2008-07-10 | Arcelik Anonim Sirketi | A user interface |
| US8866753B2 (en) | 2006-12-28 | 2014-10-21 | Arcelik Anonim Sirketi | User interface |
Also Published As
| Publication number | Publication date |
|---|---|
| NL160958C (en) | 1979-12-17 |
| BE747533A (en) | 1970-08-31 |
| SE360464B (en) | 1973-09-24 |
| NL7003877A (en) | 1970-09-22 |
| FR2038566A5 (en) | 1971-01-08 |
| FR2044846A6 (en) | 1971-02-26 |
| DE2013132C3 (en) | 1974-02-14 |
| DE2013132A1 (en) | 1970-09-24 |
| DE2013132B2 (en) | 1973-07-05 |
| NL160958B (en) | 1979-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |