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公开(公告)号：CA1079831A
公开(公告)日：1980-06-17
申请号：CA256036
申请日：1976-06-30
Applicant: IBM
Inventor： DYM HERBERT
Abstract: GRAPHIC ENTRY TABLET WITH IMPROVED ADDRESSING An improved tablet system is disclosed of the type having an array of X dimension wires and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. The X and Y wires are individually coupled to drivers so that the wires on one side of the pen position can be activated and the wires on the other side can be not activated for a pen position sensing operation. To reduce the number of drivers required for a large tablet, the wires are arranged in groups with an individual driver capacitively coupled to a correspondingly positioned wire in each group. A new packaging arrangement is provided and a new system is provided for addressing the drivers to produce the selected activation pattern.
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公开(公告)号：FR2376399A1
公开(公告)日：1978-07-28
申请号：FR7735651
申请日：1977-11-18
Applicant: IBM
Inventor： DYM HERBERT , KRAKINOWSKI MORRIS
Abstract: A plate capacitance is described which has only a single conductive coating. The capacitor comprises an insulating support substrate (12) and a number of pairs of electrodes (15a) to 24b). Each pair of electrodes forms a relatively narrow line of equipotential (62). The lines comprises a network of parallels over the surface of the substrate (12). The two electrodes of each pair have a complementary shape to establish a potential gradient along each line when the electrodes are supplied with differing electric potential. A complementary electric circuit supplies a potential difference to the capacitor whereby the position of a point on the surface of the substrate by the potential of that point can be established.
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公开(公告)号：DE2629973A1
公开(公告)日：1977-01-20
申请号：DE2629973
申请日：1976-07-03
Applicant: IBM
Inventor： DYM HERBERT
Abstract: An improved tablet system is disclosed of the type having an array of X dimension wires and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. The X and Y wires are individually coupled to drivers so that the wires on one side of the pen position can be activated and the wires on the other side can be not activated for a pen position sensing operation. To reduce the number of drivers required for a large tablet, the wires are arranged in groups with an individual driver capacitively coupled to a correspondingly positioned wire in each group. A new packaging arrangement is provided and a new system is provided for addressing the drivers to produce the selected activation pattern.
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公开(公告)号：DE1259375B
公开(公告)日：1968-01-25
申请号：DEJ0029730
申请日：1965-12-28
Applicant: IBM
Inventor： DYM HERBERT
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公开(公告)号：CA1078490A
公开(公告)日：1980-05-27
申请号：CA268525
申请日：1976-12-22
Applicant: IBM
Inventor： DYM HERBERT , LOWY PAUL , SALYER GREG
Abstract: TABLET WITH IMPROVED PEN HEIGHT COMPENSATION An improved operation is provided for a graphic tablet of the type in which a pen is capacitively coupled to sets of X dimension wires and Y dimension wires that are digitally activated to produce a pen signal that signifies the position of the pen on the tablet. Compensation is provided for variations in the pen signal that are attributable only to differences in the height of the pen above the tablet as the pen is operated over intervening layers of paper of various thicknesses. The drivers that activate the tablet are controlled to establish a sequence of different activation patterns and a corresponding sequence of analog pen signals. These signals are operated on to produce a pen position address that is substantially compensated for variations in pen height.
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Patent Agency Ranking
公开(公告)号：DE2621337A1
公开(公告)日：1976-12-16
申请号：DE2621337
申请日：1976-05-14
Applicant: IBM
Inventor： DYM HERBERT , KAMBIC STANLEY F
Abstract: An improved tablet system is disclosed of the type having an array of X and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. Drivers are provided for individual wires to produce a selected activation pattern for the wires. The drivers are operated from a shift register and associated components that are mounted on the tablet and are connected to an associated processor through only a small number of conductors.
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公开(公告)号：CA946073A
公开(公告)日：1974-04-23
申请号：CA109044
申请日：1971-03-30
Applicant: IBM
Inventor： DYM HERBERT , MAZZA ROBERT V , SEGAR LAWRENCE P
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公开(公告)号：DE1616385A1
公开(公告)日：1971-04-15
申请号：DE1616385
申请日：1968-01-03
Applicant: IBM
Inventor： JUN RICHARD BOGHOLTZ , DYM HERBERT
Abstract: 1,172,927. Testing spectral distribution. INTERNATIONAL BUSINESS MACHINES CORP. Dec. 15, 1967 [Jan. 13, 1967], No.57207/67. Heading G1U. An apparatus for testing the spectral distribution of the frequency components of a signal waveform incorporates a number of bandpass filters 27-31 each tuned to a different bandwidth within a frequency spectrum of interest, to the common input line 24 of which the waveform is applied. The filters produce D. C. outputs representative of the amplitude of the corresponding waveform components. These outputs are adjusted by potentiometers 32-36 such that for a predetermined waveform the outputs from all the filters are the same. Comparators 44-48 compare the individual outputs from the potentiometers one with another to provide an output indication whenever a difference between the adjusted output signals of any two filters is detected. The arrangement is used in association with a device 10 for examining the spatial distribution of incident light, the device consisting of a combination of a photo-diode J1 and a simple diode J2 connected in opposition, across which a longitudinal potential gradiant from battery B to earth is applied. The arrangement is subjected to a voltage sweep from a generator 22, to provide a waveform on line 20 whose time variation corresponds to the spatial distribution of the incident light. This waveform is differentiated before being passed to the line 24, since the response is the summation of the photo-currents in the activated device, and the resulting signal analysed by means of the arrangement described above. The number of comparators required in the arrangement of Fig. 1 if a number of harmonics are to be examined will be considerable. The arrangement may be simplified by connecting the adjusted outputs from the filters in parallel to both positive and negative analogue OR diode circuits which respectively produce outputs corresponding to the highest and lowest signal from the filters. These two outputs are passed to a single comparator which produces an output when the difference between highest and lowest exceeds a threshold Fig. 2, (not shown).
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公开(公告)号：DE1266342B
公开(公告)日：1968-04-18
申请号：DEJ0029729
申请日：1965-12-28
Applicant: IBM
Inventor： DYM HERBERT , MAZZA ROBERT VITO
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