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公开(公告)号：US4609776A
公开(公告)日：1986-09-02
申请号：US689353
申请日：1985-01-07
Applicant: Azuma Murakami , Yoshinori Taguchi , Tsuguya Yamanami
Inventor： Azuma Murakami , Yoshinori Taguchi , Tsuguya Yamanami
CPC classification number: G06F3/041
Abstract: A coordinate input device with display comprises a tablet having a plurality of X-direction magnetostrictive transmission mediums arranged in parallel, a plurality of Y-direction magnetostrictive transmission mediums arranged in parallel and superposed on the X-direction transmission mediums substantially orthogonally thereto, and first and second coils arranged over substantial regions of the magnetostrictive transmission mediums. A magnetic pen is used to produce just enough magnetism for causing a local increase of the electro-mechanical coupling coefficient in the magnetostrictive transmission mediums in the tablet.
Abstract translation: 具有显示器的坐标输入装置包括具有多个平行布置的X方向磁致伸缩传输介质的平板机，多个Y方向磁致伸缩传输介质，其平行布置并叠加在基本上与其正交的X方向传输介质上，并且第一 以及布置在磁致伸缩传输介质的实质区域上的第二线圈。 磁笔用于产生刚好足够的磁性，以引起片剂中的磁致伸缩传输介质中机电耦合系数的局部增加。
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公开(公告)号：US4697244A
公开(公告)日：1987-09-29
申请号：US693429
申请日：1985-01-22
Applicant: Azuma Murakami , Yoshinori Taguchi , Tsuguya Yamanami
Inventor： Azuma Murakami , Yoshinori Taguchi , Tsuguya Yamanami
CPC classification number: G06F3/043
Abstract: A coordinate input device with display includes a tablet having a plurality of parallel X-direction magnetostrictive transmission mediums, a plurality of parallel Y-direction magnetostrictive transmission mediums superposed on, and substantially orthogonal to the X-direction mediums thereto, and first and second coils wound around the magnetostrictive transmission mediums. The device further includes a plurality of biasing magnetic means for applying a biasing magnetic field to portions of the magnetostrictive transmission mediums surrounded by the first and second coils, and a tabular display superposed on the tablet and having a display area substantially equal to the position detection area on the tablet. A magnetic pen is used to cause a local increase of electro-mechanical coupling coefficient in the magnetostrictive transmission mediums in the tablet. The device further has an apparatus for recording in hard copy form the data corresponding to the appointed coordinate values, made by the magnetic pin on the display and can be visually checked.
Abstract translation: 具有显示器的坐标输入装置包括具有多个平行的X方向磁致伸缩传输介质的平板，多个平行的Y方向磁致伸缩传输介质，叠加并基本上与其X方向介质正交，以及第一和第二线圈 缠绕在磁致伸缩传输介质周围。 该装置还包括多个偏置磁性装置，用于将偏置磁场施加到由第一和第二线圈围绕的磁致伸缩传动介质的部分，以及叠加在平板电脑上并具有基本上等于位置检测的显示区域的平板显示器 平板电脑上的区域 使用磁笔来引起片剂中的磁致伸缩传递介质中机电耦合系数的局部增加。 该装置还具有用于以硬拷贝形式记录与由显示器上的磁性针制成的指定坐标值相对应的数据并可以目视检查的装置。
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公开(公告)号：USRE34187E
公开(公告)日：1993-03-02
申请号：US485669
申请日：1990-02-27
Applicant: Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
Inventor： Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
IPC: G06F3/0354 , G06F3/046 , G06F3/0488
CPC classification number: G06F3/046 , G06F3/03545
Abstract: Disclosed is a coordinates input system having a tablet constituting a coordinates input portion, a position designating device such as a stylus pen, and a position detection circuit adapted to drive said tablet and detect a position at which coordinates are input by said position designating device. The system comprises: an antenna coil disposed around a coordinates input range of said tablet; and a tuning circuit disposed in said position designating device and including a coil and a capacitor, wherein radio waves are generated by said antenna coil by application of an AC signal of a predetermined frequency thereto, and the status of said tuning circuit is discriminated by a signal of said antenna coil at the time when the transmission of said radio waves is suspended, thereby detecting the status of said position designating device. Hence, this coordinates input system is capable of detecting the status of the position designating device without connecting the position designating device and other circuits by means of a cord and without providing the position designating device with a conventionally employed complicated signal generating circuit, a battery, and the like.
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公开(公告)号：US5134689A
公开(公告)日：1992-07-28
申请号：US235588
申请日：1988-08-24
Applicant: Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda , Toshihide Chikami
Inventor： Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda , Toshihide Chikami
IPC: G06F3/0354 , G06F3/046
CPC classification number: G06F3/046 , G06F3/03545
Abstract: A coordinate input system has a tablet composed of an X-direction loop coil assembly and a Y-direction loop coil assembly, and an input pen having a tuning circuit the tuning frequency of which is variable about a predetermined frequency. The system has a coordinate detecting function for detecting the X- and Y-coordinate values of position input by the input pen, and a phase detecting function for detecting the change in the tuning frequency of the tuning circuit as a change in the phase with respect to the phase of the predetermined tuning frequency. Information concerning the detected coordinate point, e.g., spread of the coordinate point proportional to the pressure at which the pen is pressed onto the tablet, is computed in accordance with the amount of change in the phase detected by the phase detecting function.
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公开(公告)号：USRE33805E
公开(公告)日：1992-01-28
申请号：US576050
申请日：1990-08-31
Applicant: Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
Inventor： Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
CPC classification number: G06F3/046
Abstract: A system for detecting the types and statuses of position designating devices is incorporated in a coordinates input apparatus having a tablet constituting a coordinates input section, a plurality of position designating devices of different types, and a position detecting circuit for driving the tablet and detecting positions at which coordinates are input by the position designating devices. The system has an antenna coil disposed around a coordinates input range of the tablet, and a tuning circuit disposed in each of the position designating devices for transmitting radio waves in response to an external signal at an individual frequency determined in accordance with the type of the corresponding position designating device. An AC signal of predetermined frequencies is applied to the antenna coil so that it transmits radio waves. The types and statuses of the position designating devices are detected by judging the condition of the position designating circuits from signals within the antenna coil while the transmission of the radio waves is suspended. With this system, the types and statuses of a plurality of position designating devices can be detected without having to connect the devices to other circuits via cords or provide them with complicated signal generating circuits and power sources such as batteries.
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Patent Agency Ranking
公开(公告)号：US5023408A
公开(公告)日：1991-06-11
申请号：US365388
申请日：1989-06-13
Applicant: Azuma Murakami , Kazuo Aoki , Tsuguya Yamanami , Yoshiaki Tomofuji , Takeshi Tanaka , Satoshi Inashima , Takahiko Funahashi , Toshihide Chikami , Toshiaki Senda
Inventor： Azuma Murakami , Kazuo Aoki , Tsuguya Yamanami , Yoshiaki Tomofuji , Takeshi Tanaka , Satoshi Inashima , Takahiko Funahashi , Toshihide Chikami , Toshiaki Senda
CPC classification number: G06F3/046 , G06F3/033 , G06F3/03545
Abstract: A characteristic and the position of an implement with a tuned circuit having one of plural resonant frequencies are determined. AC energy at the plural different resonant frequencies is supplied to a two-coordinate direction coil arrangement of a position sensing tablet. The tuned circuit changes the current flowing in the coil arrangement at the implement resonant frequency. The current change is used to signal the implement position and characteristic. The implement may be an eraser for supplying a signal to an electronic display and for removing a mark from a surface of a visual display overlaying the tablet of the eraser. A housing includes a surface for erasing the marking and two tuned circuits each having a reactance positioned close to opposite edges of the erasing surface. Two switches, when activated, cause the tuned circuits to have different resonant frequencies. The switches are respectively activated when opposite eraser edges are being pushed against the display surface. The implement may also be one of a plurality of markers, each for a different color. Another display responds to the signals to display the position and colors of the markings and selectively remove markings from areas corresponding to the eraser position.
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公开(公告)号：US4948926A
公开(公告)日：1990-08-14
申请号：US302532
申请日：1989-01-26
Applicant: Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda
Inventor： Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda
CPC classification number: G06F3/046
Abstract: A position detecting apparatus for detecting a position pointed by an input pen which comprises: a position detection section constituted by first and second coil groups each composed of a plurality of loop coils; an input pen having a tuning circuit having a predetermined frequency as a tuning frequency; selector means for successively selecting the loop coils of the first and second coil groups of the position detection section one by one; signal generation means for supplying an A.C. signal of the predetermined frequency to the loop coils; signal detection means for detecting the A.C. signal of the predetermined frequency from the loop coils; and controller means for identifying the position pointed by the position pointer on the basis of the A.C. signal detected by the signal detection means from among the loop coils of the first and second coil groups, whereby the position pointed by the input pen can be detected on the basis of the induced voltages obtained in the first and second coil groups. Because each of the first and second coil groups is constituted by a plurality of patterned coil portions, the position detecting apparatus can be made so as to have high resolution with the reduced number of coils.
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公开(公告)号：US4786765A
公开(公告)日：1988-11-22
申请号：US76962
申请日：1987-07-23
Applicant: Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
Inventor： Tsuguya Yamanami , Toshiaki Senda , Azuma Murakami
IPC: G06F3/0354 , G06F3/046 , G06F3/0488 , G08C21/00
CPC classification number: G06F3/046 , G06F3/03545
Abstract: Disclosed is a coordinates input system having a tablet constituting a coordinates input portion, a position designating device such as a stylus pen, and a position detection circuit adapted to drive said tablet and detect a position at which coordinates are input by said position designating device. The system comprises: an antenna coil disposed around a coordinates input range of said tablet; and a tuning circuit disposed in said position designating device and including a coil and a capacitor, wherein radio waves are generated by said antenna coil by application of an AC signal of a predetermined frequency thereto, and the status of said tuning circuit is discriminated by a signal of said antenna coil at the time when the transmission of said radio waves is suspended, thereby detecting the status of said position designating device. Hence, this coordinates input system is capable of detecting the status of the position designating device without connecting the position designating device and other circuits by means of a cord and without providing the position designating device with a conventionally employed complicated signal generating circuit, a battery, and the like.
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公开(公告)号：US4890096A
公开(公告)日：1989-12-26
申请号：US792995
申请日：1985-10-30
Applicant: Yoshinori Taguchi , Tsuguya Yamanami
Inventor： Yoshinori Taguchi , Tsuguya Yamanami
CPC classification number: G06F3/046
Abstract: A coordinate input device with a display includes a tablet composed of two position detecting units each formed by alternately arranged exciting and detecting lines parallel to each other on a magnetic member in the form of a sheet. These units are overlaid one upon the other so that exciting and detecting lines of one unit extend orthogonally with respect to those of the other. A planar display is overlaid on the tablet. The device further includes a position designating magnetic generator which locally applies a magnetic bias to the magnetic members of the tablet. The exciting lines of the tablet are supplied with an alternating current of a predetermined cycle by a driving current source. A position detecting circuit detects the coordinate values of a position designated by the position designating magnetic generator from the induced voltages respectively generated from the detecting lines of the tablet. The display is driven by a display control circuit. A modulating and demodulating circuit converts data represented by the coordinate values into a signal suitable for a transmission line and vice versa. The device further includes a processor which controls the above-described members and circuits. Position designation with respect to the tablet is effected by the position designating magnetic generator from the upper side of the display, whereby it is possible to input a position signal to the tablet under the display with high accuracy.
Abstract translation: 具有显示器的坐标输入装置包括由两个位置检测单元构成的平板，每个位置检测单元通过在片状的磁性构件上彼此平行的交替布置的激励和检测线形成。 这些单元彼此重叠，使得一个单元的激发和检测线相对于另一个单元正交地延伸。 平板显示器覆盖在平板电脑上。 该装置还包括一个位置指示磁性发生器，其局部地向片剂的磁性构件施加磁偏置。 平板电脑的激动线由驱动电流源提供预定周期的交流电流。 位置检测电路根据从片剂的检测线分别产生的感应电压来检测由位置指定磁性发生器指定的位置的坐标值。 显示器由显示控制电路驱动。 调制和解调电路将由坐标值表示的数据转换成适合于传输线的信号，反之亦然。 该装置还包括控制上述构件和电路的处理器。 相对于平板电脑的位置指定是通过从显示器的上侧的位置指定磁性发生器来实现的，由此可以高精度地在显示器下面向平板电脑输入位置信号。
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公开(公告)号：US4988837A
公开(公告)日：1991-01-29
申请号：US516866
申请日：1990-04-30
Applicant: Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda , Kazuo Aoki , Keiichi Siguyama , Nobuyuki Miyamori , Akio Kikuchi , Manabu Abe
Inventor： Azuma Murakami , Tsuguya Yamanami , Takahiko Funahashi , Toshiaki Senda , Kazuo Aoki , Keiichi Siguyama , Nobuyuki Miyamori , Akio Kikuchi , Manabu Abe
CPC classification number: G06F3/046
Abstract: The position on a surface of an implement including a tuned circuit with a predetermined resonant frequency is determined and displayed by an apparatus having a housing including the surface. A tablet in the housing includes coils arranged in two coordinate directions parallel to the surface. The coils are excited with AC energy having approximately the same frequency as the resonant frequency. The tuned circuit interacts with the AC energy to change the AC current flowing in the coils as a function of the implement on the tablet. An electronic two-coordinate direction display in the housing configured as a plate is superposed with and lies in a plane parallel to the tablet and the surface. The display responds to the change in AC current resulting from the interaction between the AC energy and the tuned circuit to indicate the position of the implement on the surface.
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