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公开(公告)号：CA1297177C
公开(公告)日：1992-03-10
申请号：CA564186
申请日：1988-04-14
Applicant: IBM
Inventor： PASCUAL RAFAEL , MIESSLER MILAN
Abstract: UK9-87-004 GRAPHICS INPUT TABLET A graphics input tablet has a conductive layer and a resistive layer with contacts (16,17,23,24) arranged one along each edge of the resistive layer. The conductive layer is held at a negative potential relative to the resistive layer so current flows in each contact when localised pressure is applied to a region of the tablet (20) to bring the layers into electrical contact. The currents vary with both position and magnitude of the localised pressure. The position of the pressure is detected from the relative currents in opposed contacts and the magnitude of the pressure is detected from the total current in the contacts. The currents are measured by current sense amplifiers and processed in a computer. Analogue front-end processing of the currents is also possible.
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公开(公告)号：GB2204131B
公开(公告)日：1991-04-17
申请号：GB8710033
申请日：1987-04-28
Applicant: IBM
Inventor： PASCUAL RAFAEL , MIESSLER MILAN
Abstract: A graphics input tablet has a conductive layer and a resistive layer with contacts (16, 17, 23, 24) arranged one along each edge of the resistive layer. The conductive layer is held at a negative potential relative to the resistive layer so current flows in each contact when localised pressure is applied to a region of the tablet (20) to bring the layers into electrical contact. The currents vary with both position and magnitude of the localised pressure. The position of the pressure is detected from the relative currents in opposed contacts and the magnitude of the pressure is detected from the total current in the contacts. The currents are measured by current sense amplifiers and processed in a computer. Analogue front-end processing of the currents is also possible.
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公开(公告)号：DE3882268D1
公开(公告)日：1993-08-19
申请号：DE3882268
申请日：1988-03-04
Applicant: IBM
Inventor： PASCUAL RAFAEL , MIESSLER MILAN
Abstract: A graphics input tablet has a conductive layer and a resistive layer with contacts (16, 17, 23, 24) arranged one along each edge of the resistive layer. The conductive layer is held at a negative potential relative to the resistive layer so current flows in each contact when localised pressure is applied to a region of the tablet (20) to bring the layers into electrical contact. The currents vary with both position and magnitude of the localised pressure. The position of the pressure is detected from the relative currents in opposed contacts and the magnitude of the pressure is detected from the total current in the contacts. The currents are measured by current sense amplifiers and processed in a computer. Analogue front-end processing of the currents is also possible.
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公开(公告)号：GB2204131A
公开(公告)日：1988-11-02
申请号：GB8710033
申请日：1987-04-28
Applicant: IBM
Inventor： PASCUAL RAFAEL , MIESSLER MILAN
Abstract: A graphics input tablet has a conductive layer and a resistive layer with contacts (16, 17, 23, 24) arranged one along each edge of the resistive layer. The conductive layer is held at a negative potential relative to the resistive layer so current flows in each contact when localised pressure is applied to a region of the tablet (20) to bring the layers into electrical contact. The currents vary with both position and magnitude of the localised pressure. The position of the pressure is detected from the relative currents in opposed contacts and the magnitude of the pressure is detected from the total current in the contacts. The currents are measured by current sense amplifiers and processed in a computer. Analogue front-end processing of the currents is also possible.
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Patent Agency Ranking
公开(公告)号：CA960356A
公开(公告)日：1974-12-31
申请号：CA147826
申请日：1972-07-25
Applicant: IBM
Inventor： HEARN BRIAN R , KINGTON BRIAN W , PATON ANDREW , JONES ARTHUR S , VIGAR JAMES M L , PASCUAL RAFAEL
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公开(公告)号：GB1095208A
公开(公告)日：1967-12-13
申请号：GB2361666
申请日：1966-05-26
Applicant: IBM
Inventor： JONES ARTHUR SCOTT , VAUGHAN ERIC VICTOR , PASCUAL RAFAEL
Abstract: 1,095,208. Soldering. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 26, 1966, No. 23616/66. Heading B3R. [Also in Division H2] In making soldered connections between printed circuitry on two adjacent panels, e.g. at a right-angle junction, an intermediate connector is located between the panels so that bridging conductors on its outer surface contact the respective printed conductor, and solder balls inserted in the contact areas are melted by heat supplied from an element or hot air stream through a bore in the connector. The connector may be of a ceramic material and of circular cylindrical form with encircling conducting bands, or alternatively of triangular cross-section with conductors on one or two faces. Alternatively, the connections are made by dip coating the connector and printed conductors with tin lead or similar solder.
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公开(公告)号：DE3882268T2
公开(公告)日：1994-02-17
申请号：DE3882268
申请日：1988-03-04
Applicant: IBM
Inventor： PASCUAL RAFAEL , MIESSLER MILAN
Abstract: A graphics input tablet has a conductive layer and a resistive layer with contacts (16, 17, 23, 24) arranged one along each edge of the resistive layer. The conductive layer is held at a negative potential relative to the resistive layer so current flows in each contact when localised pressure is applied to a region of the tablet (20) to bring the layers into electrical contact. The currents vary with both position and magnitude of the localised pressure. The position of the pressure is detected from the relative currents in opposed contacts and the magnitude of the pressure is detected from the total current in the contacts. The currents are measured by current sense amplifiers and processed in a computer. Analogue front-end processing of the currents is also possible.
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公开(公告)号：DE2840500A1
公开(公告)日：1979-04-12
申请号：DE2840500
申请日：1978-09-18
Applicant: IBM
Inventor： RIGBEY LEONARD JOHN , PASCUAL RAFAEL , COX ALLEN RONALD
Abstract: In a recorder having a transducer with a gap which coacts with a flexible medium to record and/or reproduce data, an endless groove is positioned on the transducer to circumscribe the gap.
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公开(公告)号：DE2233453A1
公开(公告)日：1973-02-22
申请号：DE2233453
申请日：1972-07-07
Applicant: IBM
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