Touch responsive keyboard apparatus
    12.
    发明授权
    Touch responsive keyboard apparatus 失效
    触摸响应式键盘装置

    公开(公告)号:US3973255A

    公开(公告)日:1976-08-03

    申请号:US536172

    申请日:1974-12-24

    申请人: Alfred B. Freeman

    发明人: Alfred B. Freeman

    摘要: A keyboard apparatus for utilizing equipments, such as electronic musical instruments, computers, and other control and data handling devices, which responds to imposition of a flexible conductive element, such as the operator's finger, on a selected one of a plurality of areas to produce a representation for a character or function corresponding to the selected area. This apparatus consists of a plurality of conductors exposed in different combinations in different areas and a set of logic circuits which discriminately gate the conductors to utilizing equipment when proper combinations are energized. Several conductor arrangements with combinations all sharing one or more unique characteristics are disclosed, along with different logic systems responsive to the characteristics to assure that erroneous information will not be read in. Also disclosed is apparatus to produce an audible sound each time a read in is made and thereby indicate to the operator when the keyboard has responded.

    摘要翻译: 一种用于利用诸如电子乐器,计算机和其他控制和数据处理装置的设备的键盘装置,其响应于诸如操作者的手指的柔性导电元件的施加在多个区域中的所选择的一个区域上产生 对应于所选区域的字符或功能的表示。 该装置由在不同区域中以不同组合暴露的多个导体和一组逻辑电路组成,当适当的组合通电时,这些逻辑电路将导体分隔开以利用设备。 公开了具有共享一个或多个独特特征的组合的多个导体布置,以及响应于特性的不同逻辑系统,以确保不会读取错误的信息。还公开了每次读入时产生可听见的声音的装置 从而在键盘响应时向操作者指示。

    Collated cable matrix switch
    14.
    发明授权
    Collated cable matrix switch 失效
    整理电缆矩阵开关

    公开(公告)号:US3886335A

    公开(公告)日:1975-05-27

    申请号:US32715273

    申请日:1973-01-26

    发明人: HENDRICKS JOHN E

    摘要: In a matrix of switches disposed in rows and columns, a plurality of first discrete conductors are deposited on the surface of a first backing member to extend in a first direction and a plurality of second discrete conductors are deposited on the surface of a second backing member to extend in a second direction. Dielectric spacing means is disposed between the first and second backing members to maintain the first and second conductors in a normally spaced relationship. The spacing means defines a plurality of openings each extending between an associated pair of the first and second conductors which define one of the switches. By pressing the associated pair of conductors into relative engagement through the associated opening in the spacing means, a signal on the associated first conductor is switched to the associated second conductor. The second conductors can extend through a pair of the switches and can be bisected therebetween to increase the number of discrete switches in the matrix without increasing the number of conductors. A bar clamp provides an interface between the switches in the matrix and the electronics associated with the controlled operations. A method for making the matrix of switches includes the steps of providing a spool for each of the backing members, the conductors, and the spacing means, and guiding the conductors and the spacing means in a spaced relationship onto the backing member. This process can be performed at high speed with inexpensive materials to significantly reduce the cost of manufacturing the matrix of switches.

    摘要翻译: 在以行和列设置的开关矩阵中,多个第一离散导体沉积在第一背衬构件的表面上以在第一方向上延伸,并且多个第二离散导体沉积在第二背衬构件的表面上 以沿第二方向延伸。 电介质间隔装置设置在第一和第二背衬构件之间以将第一和第二导体保持为正常间隔的关系。 间隔装置限定多个开口,每个开口在相关联的一对第一和第二导体之间延伸,限定一个开关。 通过将相关联的一对导体压入通过间隔装置中的相关开口的相对接合,相关联的第一导体上的信号被切换到相关联的第二导体。

    SYSTEM FOR MODIFIED KEY ACTIONS AND HAPTIC FEEDBACK FOR SMART TYPING ASSIST WITH A SOLID-STATE KEYBOARD AND TOUCHPAD

    公开(公告)号:US20210325973A1

    公开(公告)日:2021-10-21

    申请号:US17361132

    申请日:2021-06-28

    申请人: Dell Products, LP

    摘要: A haptic keyboard of an information handling system comprising a coversheet to identify keys of the haptic keyboard, a contact foil and a piezoelectric element to receive an applied mechanical stress at a first key of the coversheet and generate an electric actuation signal. A processor executing instructions of a haptic smart typing assistance system to detect and anticipate a next letter of a word being typed and a controller to receive an instruction of the anticipated next letter and increasing force required actuate at least one key for a letter adjacent to the anticipated next letter, and to send a response haptic feedback control signal to the piezoelectric element to cause the piezoelectric element to generate a first haptic feedback at the first key if the anticipated next letter is selected and to generate a second haptic feedback if a typographical error is detected.

    SWITCH-SCANNING CIRCUIT AND METHOD THEREOF
    17.
    发明申请

    公开(公告)号:US20170141792A1

    公开(公告)日:2017-05-18

    申请号:US15208597

    申请日:2016-07-12

    发明人: Joseph CHOU

    IPC分类号: H03M11/20 H03K17/967

    CPC分类号: H03M11/20 H03K17/967

    摘要: A switch-scanning circuit includes a chip and switching units. The chip includes pins having an output operation mode and an input operation mode, and a processing unit. The processing unit sets one of the pins as an input pin and the rest of the pins as output pins sequentially according to a clock signal, uses a scan signal to provide different voltages to the output pins, and then determines states of button switches according to a voltage of the input pin. The switching unit includes a power source resistance, switches and resistors. A first terminal and a second terminal of the power source resistance are electrically connected to a power source and a first pin respectively. The resistors have terminals electrically connected the first pin and terminals of the switches. The other terminals of the switches are connected to the pins other than the first pin.

    SCAN METHOD FOR KEYBOARDS
    18.
    发明申请

    公开(公告)号:US20170099065A1

    公开(公告)日:2017-04-06

    申请号:US14936034

    申请日:2015-11-09

    IPC分类号: H03M11/20 H03K17/967

    摘要: A scan method for keyboards is firstly to set a higher voltage or a lower voltage to a keyboard scan input/output port when a low voltage signal is generated at a keyboard scan input port, and then to detect a voltage at the keyboard scan input/output port or the keyboard scan input port so as to determine whether the detected low voltage signal is a valid button-depressed signal or a noise. Further, a grounding resistor is connected electrically to the keyboard scan input/output port, and the scan method prevails as well to determine whether or not a detected low voltage signal is a valid button-depressed signal.

    Keyboard and notebook type computer
    19.
    发明授权
    Keyboard and notebook type computer 失效
    键盘和笔记型电脑

    公开(公告)号:US5995024A

    公开(公告)日:1999-11-30

    申请号:US848725

    申请日:1997-05-22

    摘要: A keyboard of a notebook type computer that is small in size yet has a smooth key-in operation. The keyboard includes a plurality of keys including English letter key, with each of the keys having keytops arranged in transverse lines and vertical rows in a matrix manner, with a small gap between every two adjacent keytops. An arrangement of the keytops of the English letter keys is such that a pitch in a transverse direction is larger than that in a vertical direction, and a size of an upper surface of the keytop of the English letter key is such that a length in the transverse direction is larger than a length in the vertical direction.

    摘要翻译: 笔记型计算机的键盘尺寸小,但具有顺畅的键入操作。 键盘包括包括英文字母键的多个键,每个键具有以矩阵方式布置在横向线和垂直行中的键顶,每两个相邻键顶之间具有小的间隙。 英文字母键的键顶的布置使得横向上的间距大于垂直方向的间距,并且英文字母键的键顶的上表面的尺寸使得在 横向大于垂直方向上的长度。

    Keypad handling circuits
    20.
    发明授权
    Keypad handling circuits 失效
    键盘处理电路

    公开(公告)号:US5783874A

    公开(公告)日:1998-07-21

    申请号:US643756

    申请日:1996-05-06

    摘要: A key handling circuit for a switching matrix having row and column conductors includes bidirectional drives for the row conductors and the column conductors. The row drive and the column drive are in a low conductive condition except when a relevant key switch is activated. The row drive provides a current input for the column drive in one phase of operation and the column drive provides a current input for a row drive in a second phase of operation.

    摘要翻译: 具有行和列导体的开关矩阵的键处理电路包括用于行导体和列导体的双向驱动器。 行驱动器和列驱动器处于低导通状态,除了相关键开关被激活之后。 行驱动器在一个操作阶段为列驱动器提供电流输入,列驱动器在第二个操作阶段为行驱动器提供电流输入。