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公开(公告)号：US3668313A
公开(公告)日：1972-06-06
申请号：US3668313D
申请日：1970-04-30
Applicant: IBM
Inventor： DYM HERBERT
CPC classification number: G06F3/044
Abstract: A two-dimensional graphic data entry tablet for transforming a positional information into a digital input to a computer system. The tablet structure consists of two continuous resistance lines superimposed on each other. Each of these lines being in the form of a grid and representing position in one of said two dimensions. A voltage differential is applied to each of the grids in order to create a voltage gradient along the path of the grid wires. An analog positional information is created by sensing grid voltage with a capacitively coupled stylus. By having the stylus viewing area cover a plurality of wires, the sensed potential averages out and represents a position directly related to the center location of the stylus on the faceplate of the tablet. The resistive grid lines provide the dual function of resistive bleeding and presenting a potential gradient to a capacitively coupled stylus.
Abstract translation: 一种用于将位置信息转换成数字输入到计算机系统的二维图形数据输入图形输入板。 片剂结构由两条相互叠加的连续电阻线组成。 这些线中的每一条都是网格的形式，并且表示在所述两个维度之一中的位置。 电压差被施加到每个栅格，以便沿栅格线的路径产生电压梯度。 通过用电容耦合的触控笔感测电网电压来创建模拟位置信息。 通过使触针观察区域覆盖多根电线，所感测的电位平均到达并且代表与触控笔在平板电脑板上的中心位置直接相关的位置。 电阻栅格线提供电阻性渗出的双重功能，并向电容耦合的触笔提供潜在的梯度。
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公开(公告)号：US3662377A
公开(公告)日：1972-05-09
申请号：US3662377D
申请日：1970-04-30
Applicant: IBM
Inventor： DYM HERBERT , MAZZA ROBERT V , SEGAR LAWRENCE P
Abstract: An analog-to-digital converter that eliminates dynamic coupling errors in a system where the measured signal and the reference signal are subject to such variations. This device sequentially samples an analog unknown voltage and a reference voltage and converts the sampled signals into digital information representative of the unknown voltage. Sampling and conversion is achieved in a three step process which alternates the reference and unknown signal inputs to an integrator and level holding circuits. The integrator output controls the duration of a digital counter which runs until the integrator output crosses a zero value. The result in the digital counter provides the binary value representative of the analog unknown signal. Dynamic coupling errors which occur during the reference and unknown signal sample times are eliminated by dividing the sample time of the unknown signal in two segments, a first sampling segment prior to sampling the reference signal, and a second sampling segment after the reference signal.
Abstract translation: 一种模数转换器，消除了测量信号和参考信号受到这种变化的系统中的动态耦合误差。 该装置顺序采样模拟未知电压和参考电压，并将采样的信号转换成代表未知电压的数字信息。 采样和转换是通过将参考和未知信号输入交替到积分器和电平保持电路的三步骤过程来实现的。 积分器输出控制运行的数字计数器的持续时间，直到积分器输出跨越零值。 数字计数器的结果提供代表模拟未知信号的二进制值。 在参考和未知信号采样时间期间发生的动态耦合误差通过将未知信号的采样时间除以两个段，在对参考信号进行采样之前的第一采样段和参考信号之后的第二采样段来消除。
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公开(公告)号：US3631462A
公开(公告)日：1971-12-28
申请号：US3631462D
申请日：1970-04-30
Applicant: IBM
Inventor： DYM HERBERT
CPC classification number: G06F3/0383 , H03K5/04 , H03M1/52
Abstract: A multipurpose circuit to be used in a graphic data tablet for providing the functions of pulse width modulation filtering, pulse width demodulation, selectable bandwidth for sensitivity, translation of coordinate system, and peak track-and-hold capability. The multipurpose circuit receives as its input a pulse width modulated signal that represents positional information from a graphic tablet input device. A voltagecontrolled single shot is utilized to transduce the input signal into a desired wave pattern to achieve any of the above-mentioned functions. Comparator means are provided for comparing the input signal stream to previously processed pulses and generate either a positive or negative error signal. These error signals are then integrated to provide a feedback voltage that controls the duration of the single shot.
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公开(公告)号：US3921165A
公开(公告)日：1975-11-18
申请号：US34357773
申请日：1973-03-21
Applicant: IBM
Inventor： DYM HERBERT
Abstract: A graphic data tablet of the type which includes at least one voltage divider element from which is developed signals indicative of position points along a coordinate direction. Position points along other coordinate directions are measured using other voltage divider elements. Each voltage divider element is sectionalized to permit the drive potential to be applied across a particular section or across the entire element. Position points are determined by first determining the section within which a position detecting pen is situated and subsequently the position of the pen within the section. Sectionalizing the tablet increases the tablet resolution. By providing overlapping sections, problems associated with nonlinearity at section boundaries are eliminated.
Abstract translation: 一种包括至少一个分压元件的类型的图形数据平板电脑，其中显示了沿坐标方向指示位置点的信号。 使用其他分压元件测量其他坐标方向的位置点。 每个分压器元件被分段以允许驱动电位跨越特定部分或整个元件施加。 通过首先确定位置检测笔所在的部分以及随后的笔在该部分内的位置来确定位置点。 平板电脑分段化提高了平板电脑的分辨率。 通过提供重叠部分，消除了与截面边界处的非线性有关的问题。
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公开(公告)号：US3593115A
公开(公告)日：1971-07-13
申请号：US3593115D
申请日：1969-09-10
Applicant: IBM
Inventor： DYM HERBERT , MAZZA ROBERT V
Abstract: A capacitive voltage divider arrangement for driving a position transducer. Individual ones of a first plurality of individual capacitor plates are respectively capacitively coupled to individual ones of a second like plurality of capacitance plate areas, the second plurality of capacitive areas being conductively connected together and varying in area from plate area to plate area. Individual ones of a third plurality of capacitance plate areas, which are conductively connected together, are likewise respectively capacitively coupled to individual ones of the first plurality of plates. The voltage distribution on a plurality of position sensing grid lines, individual ones of which are connected to respective individual ones of the first plurality of plates, varies in accordance with the varying in areas from plate area to plate area of the second plurality of plate areas.
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Patent Agency Ranking
公开(公告)号：US3588345A
公开(公告)日：1971-06-28
申请号：US3588345D
申请日：1968-04-11
Applicant: IBM
Inventor： DYM HERBERT
Abstract: THE POSITION OF A CAPACITIVE PROBE ON A WRITING TABLET IS CONVERTED INTO DIGITAL AND ANALOGUE SIGNALED BY DETECTING THE TIME AT WHICH A VOLTAGE NULL PASSES THE CAPACITIVE PROBE. A VOLTAGE NULL IS SWEPT ALONG ONE DIMENSION OF THE WRITING TABLET BY APPLYING A PAIR OF EQUAL FREQUENCY OUT-OF-PHASE SIGNALS, WHICH ARE AMPLITUDE MODULATED TO PROVIDE EQUAL RATES OF INCREASE AND DECREASE, RESPECTIVELY, TO THE OPPOSITE ENDS OF A RESISTOR PLACED ALONG THE DIMENSION TO BE MEASURED. THE NULL MOVES LINEARLY ACROSS THE TABLET ALONG THE DIMENSION TO BE MEASURED. THE OUTPUT FROM THE CAPACITIVE PROBE IS A WAVEFORM HAVING AN ENVELOPE WHICH REDUCES TO A NULL AT ONE POINT DURING EACH SWEEPING PERIOD. THE TIME DIFFERENCE BETWEEN THE START OF THE SWEEP AND THE OCCURRENCE OF THE NULL IS A MEASURE OF THE POSITION OF THE CAPACITIVE PROBE ALONG THE DIMENSION TO BE MEASURED. TWO DIMENSIONAL MEASUREMENTS CAN BE ACCOMPLISHED BY SWEEPING THE NULL ALONG THE SURFACE IN A PAIR OF ORTHOGONAL DIRECTIONS, USING EITHER A TIME MUL-
TIPLEXING TECHNIQUE, WHEREIN THE NULL IS SWEPT ALONG A SINGLE DIMENSION AT A TIME, OR A FREQUENCY MULTIPLEXING TECHNIQUE, WHEREIN IN CARRIER FREQUENCIES USED TO SWEEP THE NULL ALONG THE ORTHOGONAL DIMENSIONS ARE DIFFERENT FREQUENCIES.-
7.发明授权
公开(公告)号：US3452205A
公开(公告)日：1969-06-24
申请号：US3452205D
申请日：1967-01-13
Applicant: IBM
Inventor： BOGHOLTZ RICHARD JR , DYM HERBERT
CPC classification number: H04N3/12 , G01J1/42 , G01R23/00 , G01S7/483 , H01L31/02019
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公开(公告)号：US3432670A
公开(公告)日：1969-03-11
申请号：US42142564
申请日：1964-12-28
Applicant: IBM
Inventor： DYM HERBERT
CPC classification number: G06K7/10851 , H03K3/42 , H04N5/3692
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公开(公告)号：CA946072A
公开(公告)日：1974-04-23
申请号：CA109032
申请日：1971-03-30
Applicant: IBM
Inventor： DYM HERBERT
Abstract: 1296292 Measuring pulse width INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [30 April 1970] 26435/71 Heading G1U [Also in Division G4] In a pulse width measuring arrangement the control voltage (44) applied to a controllable single shot 42 is adjusted by a feedback loop to make the width of the single shot output pulse equal to the width of the input pulse (40), the control voltage then providing a measure of this latter pulse width. The leading edge of the input pulse 40 triggers the single shot 42. The single shot output 46 and the input 40 after inversion are fed to an AND gate 50, the resulting output pulses being fed to the inverting input of an integrator 56. Similarly the signal 40 and the signal 46 after inversion are fed to an AND gate 53, the output of which is fed to the non inverting input of integrator 56. The integrator output controls the single shot and is also fed to a display screen. By inhibiting either gate 53 or gate 55 the output may be made to track minimum or maximum signals respectively.
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公开(公告)号：DE1917608A1
公开(公告)日：1969-10-30
申请号：DE1917608
申请日：1969-04-05
Applicant: IBM
Inventor： DYM HERBERT
Abstract: 1,204,107. Selective signalling. INTERNATIONAL BUSINESS MACHINES CORP. 18 March, 1969 [11 April, 1968], No. 14010/69. Heading G4H. [Also in Division G1] The position of a probe 12, Fig. 3, manually movable in two dimensions X, Y, is detected by capacitively picking-up for each dimension, a saw-tooth modulated signal, e.g. Fig. 5A, in which the time, within the modulation cycle, at which the modulation passes through zero represents the probe position. This time can be either digitized or converted to a corresponding voltage amplitude. The probe 12 is arranged above two sets of conductors 10, each set being joined to different tapping points on two resistors X 1 X 2 , Y 1 Y 2 . The ends of each resistor are energized simultaneously by signals, Fig. 5B and 5C. These result in a null point being swept across each resistor, and thus the time, within a modulation cycle, at which the null reaches the probe represents the probe position. In the preferred embodiment the X and Y co-ordinates are measured separately. The required signals are generated by modulators 44, 46 under the control of a counter 34. The probe output is amplified 20 and demodulated 22, and a circuit 24 is arranged to produce a pulse which is positive at the beginning of a modulation cycle and which remains positive until the null point occurs. Thus, the duration of this pulse represents the co-ordinate being measured and after passing through an X-gate 26 or a Y-gate 30 it can either be integrated to give an analogue output, or its trailing edge can gate the contents of the counter into an appropriate register to provide a digital output.
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