CA1080325A - Automatic coordinate determining device - Google Patents
Automatic coordinate determining deviceInfo
- Publication number
- CA1080325A CA1080325A CA253,195A CA253195A CA1080325A CA 1080325 A CA1080325 A CA 1080325A CA 253195 A CA253195 A CA 253195A CA 1080325 A CA1080325 A CA 1080325A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- conductive lines
- maximum
- signals
- scanning
- 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
- 239000000523 sample Substances 0.000 claims abstract description 44
- 230000001939 inductive effect Effects 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 24
- 230000003534 oscillatory effect Effects 0.000 claims description 20
- 230000015654 memory Effects 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 239000000543 intermediate Substances 0.000 description 5
- 241001422033 Thestylus Species 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 101150087426 Gnal gene Proteins 0.000 description 1
- 101100256746 Mus musculus Setdb1 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C21/00—Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system
-
- 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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Human Computer Interaction (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Radar Systems Or Details Thereof (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50062191A JPS51138124A (en) | 1975-05-23 | 1975-05-23 | Automatic coordinate reader |
| JP50064470A JPS5927949B2 (ja) | 1975-05-28 | 1975-05-28 | 自動座標読取装置 |
| JP50138002A JPS599951B2 (ja) | 1975-11-17 | 1975-11-17 | ジドウザヒヨウヨミトリソウチノソウサホウシキ |
| JP50138905A JPS5263026A (en) | 1975-11-19 | 1975-11-19 | Coordinates reader |
| JP1359476A JPS5296825A (en) | 1976-02-10 | 1976-02-10 | Coordinates readout unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1080325A true CA1080325A (en) | 1980-06-24 |
Family
ID=27519523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA253,195A Expired CA1080325A (en) | 1975-05-23 | 1976-05-25 | Automatic coordinate determining device |
Country Status (10)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5983238A (ja) * | 1982-11-04 | 1984-05-14 | Sony Corp | 位置検出装置 |
| GB2140562B (en) * | 1983-04-22 | 1986-10-08 | Robert John Collins | Current-ratio digitisers |
| DE3325811A1 (de) * | 1983-07-18 | 1985-01-31 | Aschauer Georg | Geraet zum erfassen handgeschriebener zeichen fuer die weiterverarbeitung in edv-anlagen/datenerfassungsgeraet |
| JPH0654460B2 (ja) * | 1986-07-12 | 1994-07-20 | アルプス電気株式会社 | 座標検出方法 |
| HUT49003A (en) * | 1988-01-22 | 1989-07-28 | Tamas Ban | Method and device for determining position of points characterized by planar coordinates |
| US7868874B2 (en) | 2005-11-15 | 2011-01-11 | Synaptics Incorporated | Methods and systems for detecting a position-based attribute of an object using digital codes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461454A (en) * | 1968-06-06 | 1969-08-12 | Ibm | Position identifying device |
| US3648277A (en) * | 1970-07-21 | 1972-03-07 | Science Accessories Corp | Magnetic graphical data device |
| GB1340522A (en) * | 1971-01-14 | 1973-12-12 | Quest Automation | Apparatus for converting graphical information into co-ordinate data |
| US3873770A (en) * | 1974-03-21 | 1975-03-25 | Bendix Corp | Digital position measurement system with stylus tilt error compensation |
-
1976
- 1976-05-21 GB GB21182/76A patent/GB1525649A/en not_active Expired
- 1976-05-21 NO NO761742A patent/NO149446C/no unknown
- 1976-05-21 DE DE2622941A patent/DE2622941C2/de not_active Expired
- 1976-05-21 SE SE7605788A patent/SE420655B/xx not_active IP Right Cessation
- 1976-05-21 IT IT49614/76A patent/IT1061979B/it active
- 1976-05-21 NL NLAANVRAGE7605478,A patent/NL185427C/xx not_active IP Right Cessation
- 1976-05-21 FR FR7615404A patent/FR2312012A1/fr active Granted
- 1976-05-24 CH CH653476A patent/CH595613A5/xx not_active IP Right Cessation
- 1976-05-25 CA CA253,195A patent/CA1080325A/en not_active Expired
-
1982
- 1982-11-25 HK HK492/82A patent/HK49282A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE420655B (sv) | 1981-10-19 |
| FR2312012B1 (US06252093-20010626-C00008.png) | 1982-04-09 |
| NL185427C (nl) | 1990-04-02 |
| CH595613A5 (US06252093-20010626-C00008.png) | 1978-02-15 |
| NO761742L (US06252093-20010626-C00008.png) | 1976-11-24 |
| NL7605478A (nl) | 1976-11-25 |
| DE2622941C2 (de) | 1986-01-30 |
| NO149446C (no) | 1984-04-25 |
| GB1525649A (en) | 1978-09-20 |
| IT1061979B (it) | 1983-04-30 |
| NO149446B (no) | 1984-01-09 |
| NL185427B (nl) | 1989-11-01 |
| HK49282A (en) | 1982-12-03 |
| DE2622941A1 (de) | 1976-12-09 |
| FR2312012A1 (fr) | 1976-12-17 |
| SE7605788L (sv) | 1976-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |