| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Electroluminescent metal dome keypad | US10962780 | 2004-10-12 | US07019242B2 | 2006-03-28 | Eun Soo Kim |
| The present invention relates to an EL metal dome keypad which comprises a plurality of domes which are disposed at positions corresponding to fixed contact terminals of a printed circuit board and are brought into contact with or separated from the fixed contact terminals by means of elastic deformation; a base tape which is laminated on the printed circuit board, has a plurality of holes formed at positions corresponding to the domes, and is used to mount the domes to the printed circuit board by inserting and holding the domes into the formed holes; double-sided adhesive tape which is laminated in the base tape and the domes inserted into and held to the holes formed in the base tape, and used to attach and hold the base tape and the dome thereon; and an EL sheet which is attached and laminated on the double-sided adhesive tape. | ||||||
| 102 | High voltage resisting keyboard | US10857967 | 2004-06-02 | US20050271442A1 | 2005-12-08 | David Ho; Tony Tsai; Tao Xia; Zhi-Zhong Hong |
| The present invention discloses a high voltage resisting keyboard comprising at least one press key on a casing, a circuit board inside the casing, and a metal dome between the press keys and the circuit board inside the casing, wherein the edge of the metal hemisphere of the metal dome is directly connected to an end of an electrode of the circuit board, and the other end of the electrode is connected to an end of a resistor. Thus, when the edge of the metal hemisphere receives the high voltage current, the keyboard is protected by the resistor to avoid the high voltage current from being sent directly to another end of the resistor that is connected to another electronic component to achieve the purpose of protecting another electronic component. | ||||||
| 103 | Electroluminescent metal dome keypad | US10962780 | 2004-10-12 | US20050241927A1 | 2005-11-03 | Eun Kim |
| The present invention relates to an EL metal dome keypad which comprises a plurality of domes which are disposed at positions corresponding to fixed contact terminals of a printed circuit board and are brought into contact with or separated from the fixed contact terminals by means of elastic deformation; a base tape which is laminated on the printed circuit board, has a plurality of holes formed at positions corresponding to the domes, and is used to mount the domes to the printed circuit board by inserting and holding the domes into the formed holes; double-sided adhesive tape which is laminated in the base tape and the domes inserted into and held to the holes formed in the base tape, and used to attach and hold the base tape and the dome thereon; and an EL sheet which is attached and laminated on the double-sided adhesive tape. | ||||||
| 104 | Movable contact body and panel switch using the same | US11025144 | 2004-12-28 | US20050211537A1 | 2005-09-29 | Cheng-Pin Huang; Ssu-Min Lung |
| A movable contact body includes a separator (13), a number of domes (12), an insulative film (11) and a shielding (10). The separator is made of insulative material and is substantially a planar sheet. The domes are made of resilient conductive material and are located on the separator in pre-determined locations. The insulative film coats on upper surfaces of the domes. The planar shielding is made of conductive material and coats on the insulative film. The planar shielding defines a number of openings (100) in predetermined locations corresponding to the domes. Each opening receives one dome therein. | ||||||
| 105 | Dome sheet and method for manufacturing the same | US11025484 | 2004-12-28 | US20050205405A1 | 2005-09-22 | Cheng-Pin Huang; Ssu-Min Lung |
| A dome sheet for a panel switch includes a planar and resilient metal sheet (1), a number of domes (2) punched from the metal sheet, and a number of positioning members (3) made of insulative material for positioning the domes with the metal sheet. A manufacturing process for the dome sheet includes steps of processing a metal sheet to form a number of original domes (22) partially separate from the metal sheet, applying a plurality of positioning members to fix the original dome to the metal sheet, and electrically isolating the original dome from the metal sheet. | ||||||
| 106 | Switch | US10984842 | 2004-11-10 | US20050098422A1 | 2005-05-12 | Kenji Nishimura; Tamotsu Yamamoto; Tatsuya Tsuda |
| Disclosed is a switch, which comprises an insulative plastic case having a cavity formed therein, a metal cover joined to the case to cover over the cavity, and a switching contact section contained in the cavity. In this switch, a surface of the cover opposed to the case has an insulative film formed on at least a region of the surface facing to the cavity. The switch can prevent an externally-originated static elasticity from adversely affecting on the switching contact section to protect a circuit section of a device connected to the switching contact section. | ||||||
| 107 | Method for improving EMC of keyboard soft board | US10231109 | 2002-08-30 | US20030200652A1 | 2003-10-30 | Bright Huang |
| A method for improving the EMI compatibility of the keyboard soft board is disclosed. A low-pass filter is installed on the scan lines of the keyboard soft board to remove high-frequency noise signals produced by the soft board circuit, achieving the EMC requirement. The low-pass filter is formed between the input terminal of the scan line and the touch pad. An inductance is selectively installed and between the touch pads. A capacitance is formed between the touch pad of the scan line and a ground network. The method of forming the capacitance is to form ground pads on the ground network corresponding the scan line touch pads. The method of forming the inductance may be achieved through a reversed U-shaped inductor. | ||||||
| 108 | Transparent keyboard device | US09960682 | 2001-09-21 | US20020056626A1 | 2002-05-16 | Hideki Ito; Akio Nishijima |
| The present invention provides a keyboard device having an excellent appearance even when viewed from a rear surface side of a transparent keyboard. The keyboard device has a keyboard main body where plural key tops are provided on a support plate, a control board provided on the rear surface side of the support plate, a shield case provided on the rear surface side of the support plate so as to cover the control board, and a case having a rear surface side formed of transparent resin, accommodating the keyboard main body, the control board and the shield case. A resin sheet is provided on the rear surface of the support plate, and the resin sheet is bonded to the support plate except a region corresponding to an edge of the shield case positioned on the rear side of the support plate. | ||||||
| 109 | Electrostatic discharge protection in a portable communication device | US09032794 | 1998-03-02 | US06207912B1 | 2001-03-27 | Göran Persson |
| A portable communication device has an electronic circuit board arranged inside a housing, and a keypad, the individual keys of which are arranged, when depressed, to collapse a respective tactile dome on a domefoil interposed between the keypad and the circuit board, so as to establish electric contact with a respective contact point on the circuit board. The domefoil is formed as a non-conductive sheet providing an airtight and/or electrostatic seal between the keypad and the circuit board. The domefoil protects the circuit board from electrostatic discharge. | ||||||
| 110 | Keyboard with flexible display and prompt capability | US853356 | 1992-03-16 | US6028591A | 2000-02-22 | William R. Lueders |
| A keyboard (10) is disclosed including a flexible display membrane (36) overlying a plurality of pressure-responsive switches (28). The display membrane (36) can be electrically addressed to display location indicia (48) indicating the position of an underlying switch (46), and functional indicia (50) indication the function of the key (46). Informational text (58) can also be displayed on the flexible display (36) indicating the choice of switches to effect a desired function. An interactive exchange of information between the keyboard user and a processing system (14) can be achieved to accomplish a desired function. Graphical information can be input to the processing system (14) by an array (90) of pressure-responsive elements (91). Graphics input by the array (90) can be reproduced on an overlying portion (96) of the flexible display membrane (36). | ||||||
| 111 | Housing for appliances in the field of electrical datacommunication | US272406 | 1994-07-08 | US5925847A | 1999-07-20 | Karl-Heinz Rademacher; Jens P. Althaus |
| The invention presents a housing for appliances in the field of electrical datacommunication which is protected from outside interference in that it is provided with a part (13, 15) shaped from metal plating on the inside which is fixedly connected to a layer of thermoplastic material which forms the outer shell (12, 14) of the housing. | ||||||
| 112 | Keyboard arrangement and method for identifying a pressed key | US943375 | 1997-10-03 | US5877709A | 1999-03-02 | Timo Ala-Lehtimaki; Paavo Niemitalo |
| In a keyboard arrangement and method for identifying a pressed key according to the present invention, conductor lines (4', 6') at each key (B), which may be connected together, are connected to a ground plane (24, 23, 27) as a response to a pressing (P) of a key. The pressed key (B) is identified by detecting the conductor lines that are connected to the ground plane. All the conductor lines may be connected as pulled-up inputs of a detector circuit, and any conductor line or combination of conductor lines may be used to identify a key. A noticeably greater number of keys may be simply identified with the same number of conductor lines than is possible in a solution according to the prior art. In an advantageous embodiment of the present invention, the means for connecting the conductor lines (4', 5', 6', 7') to the ground plane (27) is a conductive plate (23), which essentially covers the whole keyboard. This also provides a good shield against electrostatic discharges and other interference. | ||||||
| 113 | Pushbutton switch | US683771 | 1996-07-17 | US5664667A | 1997-09-09 | Yoshio Kenmochi |
| A pushbutton switch is described which has a printed wiring board and a keypad arranged above the printed board, wherein the keypad has a non-working portion and a working portion made of translucent silicone rubber or thermoplastic elastomer in which the upper surfaces of the non-working portions only are covered with an opaque film, with an underside surface thereof covered by an insulating resin film so as to form an electrically conductive light-reflecting layer which is grounded to an earth portion. | ||||||
| 114 | Bush switch and method of production thereof | US113026 | 1987-10-27 | US4843197A | 1989-06-27 | Hisano Kojima; Michio Hirabayashi |
| A push switch includes a central contact member arranged on a contact support member with an annular peripheral contact member surrounding the central contact member. An elastic conductive member such as a belleville spring and the peripheral contact member along their entire outer edge portions are fixedly held within an insulating case in a manner to seal the space around the central contact. In addition, an elastic spring member may be provided in a position covering the elastic conductive member. A plurality of the push switches may easily be manufactured on an assembly line by forming a multiplicity of central contacts, peripheral contacts and conductive members in separate processes and sequentially going through a first and second insert molding processes. | ||||||
| 115 | Transparent touch panel switch | US57274 | 1987-06-01 | US4786767A | 1988-11-22 | Bruce Kuhlman |
| An improved transparent touch panel membrane switch for use and shielding in front of a visual display terminal is disclosed. The switch is made up of a plurality of plastic sheets arrayed substantially parallel to one another in a sandwich configuration. The outermost of the sheets has an antireflective hardcoat. Two adjacent but spaced apart inner sheets provide the electrical contact through transparent low reflectance conductive metal coatings. The switch additionally contains a further inner antireflective transparent electrically conductive coating which provides shielding against the passage of electromagnetic and radio frequency interference through the membrane switch. The layers in this switch all contribute to a relatively low transmittance of back lighting from the visual display terminal but also significantly reduce reflectance such that the overall signal-to-noise ratio is substantially enhanced. | ||||||
| 116 | Keyboard with metal cover and improved switches | US879284 | 1986-06-27 | US4771139A | 1988-09-13 | Gregory L. DeSmet |
| An improved keyboard is provided with a flexible metal cover, normally closed switches, and multiple throw switches. The metal cover is made flexible in the area of each key or switch by the provision of grooves in the metal surrounding each flexible portion. The normally closed and multiple throw switches include pellets which transmit the actuating force on a key or switch through a substrate on which a switch is mounted. The device may be configured in such a way that the pellet will push the normally closed contacts of a switch out of contact, or the pellet or pellets may mechanically link a stacked set of switches in order to provided ganged, multiple throw operation. | ||||||
| 117 | Magnetically snap actuated contact keyboard apparatus | US693638 | 1985-01-22 | US4689608A | 1987-08-25 | Frank J. Bolda; John P. McKnight; Russell J. Sturm |
| In the preferred embodiment of the invention, the snap actuator is an angled magnetically permeable plate. One leg of the angled plate is attracted to a strip magnet placed on a circuitboard. This particular portion of the plate also has two spring fingers that make contact with spherical or domed contacts on the circuitboard or, in the alternative, have formed dome portions in the end of each finger for contacting flat contacts on the circuitboard so that a wiping action that is resistant to contamination results. The other leg of the angled plate serves as a lever arm to which key button pressure is applied. The angle between the plates or the edge of the strip magnet serves as a fulcrum for pivoting the plate under the influence of key pressure. When key pressure has built up sufficiently, the magnetic attraction is substantially broken and the angled plate is suddenly released, thereby breaking contact with the circuit contacts and allowing the circuit voltage to be sensed. | ||||||
| 118 | Shielded keyboard | US782825 | 1985-10-02 | US4671688A | 1987-06-09 | David W. Brashears |
| A shielded keyboard comprising a sheet of flexible fine wire mesh material between an array of keyboard contacts and an apposed array of switching actuators. | ||||||
| 119 | Backlighted illuminated keyboard | US491246 | 1983-05-03 | US4449024A | 1984-05-15 | Steve W. Stracener |
| A backlighted illuminated keyboard including a printed circuit board on which is mounted in a central location a single lamp easily replaceable from the backside of the board and which extends into a clear plastic light diffuser over which an overlay is disposed and a bezel is provided to define key areas in the translucent overlay such that the single lamp disperses light energy through the diffuser to light up the entire overlay. The single lamp is mounted in a socket formed in the printed circuit board and held in place by a swivel arm which can be swung to one side to allow ease of removal of the lamp. | ||||||
| 120 | Graphical data entry pad | US712748 | 1976-08-09 | US4079194A | 1978-03-14 | Victor Kley |
| A data entry pad for the entry of two-dimensional graphical data to a communication system includes a resistive grid area to which a conductive layer may be selectively contacted so that graphical data can be generated by external resistance measuring electronic circuitry. The resistive grid area is formed by a pattern of resistive inking on a base and is separated from the conductive layer by a foamed thermoplastic insulating separator. High resistance bands surround the grid area so as to linearize its output values. | ||||||
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