子分类：
| 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 | Key sheet | US11009137 | 2004-12-13 | US07034235B2 | 2006-04-25 | Junko Hosaka |
| A key sheet includes a base sheet and a plurality of key tops arranged on the base sheet. The base sheet includes an elastic member formed of a rubber-like elastic body and a light-reflective reinforcing member. The light-reflective reinforcing member having at least one surface constitutes the metal-containing face. | ||||||
| 102 | Illumination key and method of manufacture | US09854804 | 2001-05-14 | US20020027065A1 | 2002-03-07 | Yoshio Kenmochi |
| The present invention provides an illumination key and a method of making such illumination key, in which the upper surface of the key top is curved and slanted at an angle to make it possible to reliably recognize the pattern (such as a letter or the like) printed thereon, the key operating portion is provided with a rubber-like click sensitivity and elasticity while the key top portion is made of a hard resin, with the key operating portion and the key to being reliably bonded to each other, and in which a pattern such as a letter or the like can be simply created without the need for laser etching, and wherein it is possible to reliably carry out ON/OFF operations of a one key top without operating neighboring key tops. | ||||||
| 103 | Data entry control panel | US617991 | 1990-11-26 | US5225818A | 1993-07-06 | Weng-Kai K. Lee; David A. Rivera; Kevin M. Myles; H. Michael Berman; Paula C. Willis |
| The thin section data display control panel of the present invention includes a graphic overlay, a diffuser block affixed to the graphic overlay and light emitting diodes surface mounted on a printed circuit board for providing localized sources of light to be transmitted through the diffuser block to the overlay. The graphic overlay is generally opaque, but has translucent areas through which the illumination shines. An overlay reflective portion on a diffuser side of the overlay reflects light back into the diffuser, except in areas adjacent to the translucent areas of the overlay. The diffuser block is affixed to the graphic overlay and is generally transparent for transmitting the light from the light emitting diodes. Block reflective surfaces on the perimeter edges of the diffuser block prevent light from exiting through the edges. Matte surfaces of the diffuser block adjacent the graphic overlay and adjacent the printed circuit board scatter the light transmitted from the light emitting diodes. The light emitting diodes provide a plurality of localized sources of light which is scattered within the diffuser block and thereby provide relatively uniform back lighted illumination to the translucent portions of the graphic overlay. The light emitting diodes are partially received within a recessed portion of the diffuser block. An electrostatic discharge shield, adjacent the printed circuit board, having a reflective metallic surface reflects light not transmitted through the translucent portions back into the diffuser block. | ||||||
| 104 | Low-profile, rubber keypad | US266749 | 1988-11-03 | US4916262A | 1990-04-10 | Polly S. Jungels-Butler; Scott D. Beutler |
| A low-profile rubber keypad with good tactile feel and illuminability includes a plurality of layers adhesively bonded to one another. The top layer of the keypad is a silicone rubber overlay having a plurality of keys protruding therefrom. The rubber overlay is adhesively bonded to an actuation layer including a plurality of thin actuating strips. The actuation layer is adhesively bonded to a tactile layer including a plurality of collapsible resilient domes. The tactile layer is adhesively bonded to a shorting layer including a plurality of conductors. The shorting layer is adhesively bonded to a flex circuit layer including a plurality of conductors. | ||||||
| 105 | Glass membrane keyboard switch assembly for domestic appliance | US139919 | 1987-12-31 | US4901074A | 1990-02-13 | Richard E. Sinn; Robert R. Williams |
| A keyboard switch assembly includes a thin, flexible, glass top layer forming a membrane. Disposed on an inner surface of the glass membrane is a first conductive layer forming an electrode. Disposed beneath the first conductive layer is an insulating layer or spacer having an aperture therein that defines a switch contact area. Beneath the spacer a rigid portion of the keyboard switch assembly is provided. The rigid portion of the keyboard switch assembly includes a rigid substrate with a conductive coating formed thereon to provide a second conductive layer or electrode disposed beneath the spacer. A flexible polymer layer may further be disposed between the rigid substrate and the second conductive layer to reduce point contact degradation in the keyboard switch assembly. Decorative paint layers may be formed on the inner surface of the glass membrane between the glass membrane and the first conductive layer. Alternatively, where the layers forming the keyboard switch assembly are transparent, a decorative paint layer may be disposed on an outer surface of the rigid substrate. | ||||||
| 106 | Variable capacitance push-button switch | US251605 | 1988-09-30 | US4849852A | 1989-07-18 | Barry Mullins |
| In a capacitive-type switch having two capacitive levels, a relatively thin blade of a desired dielectric material is interposed between two capacitive plates by downward actuation of a push-button switch so that the plates become separated by the blade. When the push button is released, the blade is removed from between the two capacitive plates and a high capacitance level is once again achieved. | ||||||
| 107 | Data entry keyboard | US868426 | 1986-05-28 | US4701579A | 1987-10-20 | Hisao Kurachi; Kazuyoshi Minaminaka; Takeo Ito; Kiyoshi Yamakawa |
| Disclosed is a data entry keyboard which has a multitude of depressible keys which are selectively depressed for the entry of predetermined data. In the keyboard, an insulating member is sandwiched between a first substrate having stationary electrodes and a flexible second substrate having movable electrodes. The stationary and movable electrodes face one another through apertures formed in the insulating member. Upper and lower marginal surface portions of the insulating member, including the respective peripheral edges of the apertures, are kept parallel to the first and second substrates corresponding thereto by a plurality of protuberances on the substrates so that voids with a predetermined width are left between the marginal surface portions and the individual substrates. The movable electrodes of the second substrate are electrically fixed, in the form of a cantilever each, to the extreme end portions of branch conductor strips which diverge from a main conductor strip at right angles thereto. When one of the keys is depressed, the second substrate is deformed to narrow the corresponding void, thus bringing the corresponding movable and stationary electrodes into contact with each other. | ||||||
| 108 | Membrane keyboard switch mounting | US614614 | 1984-05-29 | US4605828A | 1986-08-12 | Dominic A. Gostomski, Jr.; Jerry G. Price |
| A multilayer membrane switch structure is disclosed wherein the flexible membrane is fixedly attached to a support frame member by a pattern of adhesive regions, the regions positioned in locations corresponding to the switch locations of the structure. The adhesive engagement of the bottom surface of the membrane structure stabilizes the bottom electrical contact and, at the same time, leaves open regions between the adhesive regions which will accommodate air which is exhausted from the switch cavity through a hole formed in the bottom layer of the multilayered switch structure into communication with the open regions between the adhesive regions. Thus, the open regions act to exhaust the air in a switch cavity when the switch is activated. | ||||||
| 109 | High speed serial scan and readout of keyboards | US544383 | 1975-01-27 | USRE31942E | 1985-07-09 | William G. Klehm, Jr. |
| Relates generally to the production of electrical signals from a keyboard, each key of which is individually operatively associated with a switching device whose activation to electrical conductive condition is controlled by the displacement of the key. These switches are hermetically sealed from the atmosphere and are electrically scanned in succession at relatively high speeds and at a repetitious rate such that several scanning cycles occur during the normal activation of a selected key. The keyboard mechanism also includes a shift register having one more bit position than the number of switch devices and into which a bit is introduced into the "one" position at the instant the scan encounters a closed switch of the keyboard. This bit is then shifted through the register in timed relation to the scan of the remaining key switches and unloaded into the last bit position of the register. A detector senses the presence of a bit in both the "one" position and the last position of the shift register and upon detection of a bit solely in the one position it delivers a signal indicative of the character represented by the actuated key and upon detecting bits in the two extreme positions of the shift register it nullifies the delivery of such a signal. | ||||||
| 110 | Compact telephone unit with a plug-in module | US346312 | 1982-02-05 | US4488009A | 1984-12-11 | Henry Sherman |
| A telephone unit comprising a case containing at least a microphone and a loudspeaker and carrying a switch for putting the unit in and out of circuit. The case has in the center part of one of its sides a slot and a multi-contact connector is disposed in facing relation to this slot. The contacts of the connector are electrically connected to at least some of the components within the case. The connector provides the normal connection between these components when the unit is used alone and cooperates with a secondary complementary multi-contact connector which may be plugged in the first-mentioned connector and is connected to circuits which are insertable in the circuit contained in the case by a plugging together of the first connector and second connector. | ||||||
| 111 | Postage meter having shielded keyboard to protect against electromagnetic radiation | US122791 | 1980-02-19 | US4336529A | 1982-06-22 | Danilo P. Buan |
| A shielded switch structure is disclosed. The switch structure is adapted for use in a system which is susceptible to being affected by electromagnetic radiation. The structure includes a conductive flexible sheet disposed adjacent to a plurality of switch contacts. The sheet is operable to enable a force applied to the sheet to actuate selected switch contacts. The shielded switch structure is mounted on a postage meter conductive housing. The housing includes a recessed area adapted to receive the keyboard. The conductive flexible sheet is positioned above the conductive housing recessed area and of a size so that the margins of the flexible sheet physically engage non recessed areas of the housing. | ||||||
| 112 | Keyboard switch covering pads | US96513 | 1979-11-21 | US4289940A | 1981-09-15 | Ryoichi Sado; Yoshitusgu Morikawa |
| A novel keyboard switch covering pad suitable for use in, for example, a pocketable electronic calculator is proposed which is safe from the danger of failure or erroneous operation of the LSI or other electronic devices built in the instrument when two or more of the key switches are pushed simultaneously.The keyboard switch covering pad of the invention comprises an electrically conductive rubber sheet divided into a desired number of sections and an electrically insulating sheet which serves as a common lining for the divided sections of the rubber sheet, on which the divided sections are bonded keeping an electrically insulating air gap space between each other. | ||||||
| 113 | Connecting flexible switch | US919386 | 1978-06-26 | US4218600A | 1980-08-19 | William R. Kissner |
| A flexible switch with a flexible tail bent downward from the switch inside the edge of the switch and placed through an opening in the frame supporting the switch, the tail carrying conductive leads for connecting contacts carried by layers of the switch to external circuitry, thereby allowing for an uninterrupted peripheral adhesive seal between the switch and the underlying frame. | ||||||
| 114 | Flexible keyboard switch with integral spacer protrusions | US790759 | 1977-04-25 | US4145584A | 1979-03-20 | Jon L. Otterlei |
| A keyboard switch construction in which contacting surfaces in spaced apposition on resilient, flexible, electrically non-conductive laminae are prevented from making contact in the absence of outside pressure by ribs formed in the material and substantially surrounding the conducting surface on one lamina. The switch construction is used in a control panel arrangement in which pilot and operative components are separately mounted and are associated by printed circuitry carried on a flexible insulating strip which may be physically continuous or may be electrically continuous using a multi-contact connector to interconnect two physically separate halves of the sheet. | ||||||
| 115 | Optically clear membrane switch | US790635 | 1977-04-25 | US4143253A | 1979-03-06 | Richard M. Wagner; Richard H. Zimmerman |
| Membrane switch assembly comprises a transparent laminate comprised of three sheets of cellulose acetate material. The intermediate sheet has an opening therein which defines a switch site. Hairline conductors on the internal surfaces of the outer sheets cross each other at the switch site so that the switch is closed when one of the outer sheets is pressed at the switch site. The conductors are produced on the surfaces of the outer sheets by a process including electroless deposition of blanket coatings of conductive metal, selective deposition along lines which define the conductors and selective etching of the blanket coating to leave the hairline conductors. | ||||||
| 116 | Keyboard switch assembly having foldable printed circuit board, integral spacer and preformed depression-type alignment fold | US701508 | 1976-07-01 | US4066851A | 1978-01-03 | James N. White; Richard E. Seeger |
| Keyboard construction using a sheet of flexible and resilient non-conductive material preferably non-conductive plastic which is preformed in a predetermined manner for supporting both contact means and contactor means and which is adapted to be folded so that the contact and contactor means are positionable in spaced apart alignment whereby upon depression electrical contact may be made between said contact means and said contactor means. | ||||||
| 117 | Simplified tabulator keyboard assembly for use in watch/calculator having transparent foldable flexible printed circuit board with contacts and actuator indicia | US608852 | 1975-08-29 | US4028509A | 1977-06-07 | Rudolf F. Zurcher |
| A tabulator keyboard of simplified design may be fabricated from a single flexible circuit and a minimum of other mechanical structures. The flexible circuit combines in one piece an array of deformable upper contacts, an array of stationary lower contacts, as well as the required interconnections between the elements of these arrays and the electronics module. The flexible circuit may be made of a reasonable transparent dielectric film (e.g. polyamide). The flexible circuit is folded in use such that the lower stationary array has its conductive surface opposite the upper deformable array. Means are provided for making electrical contact between a selected element in said lower array with a selected element in said upper array. | ||||||
| 118 | Keyboard switch assembly with dome shaped actuator having associated underlying contactor means | US41032973 | 1973-10-29 | US3860771A | 1975-01-14 | LYNN WILLIAM J; SEEGER RICHARD E |
| A keyboard device utilizing a conductive plastic material layer which contacts circuit elements or pathways, the improvement of snapable plastic means raised on a pedestal through which it snaps through center to provide a feel of completion of circuit contact to the user.
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| 119 | Price board slide switch | US3786206D | 1972-10-30 | US3786206A | 1974-01-15 | KURIMSKY A |
| A price board selection switch assembly for facilitating the operation of selectively setting and of changing the various prices at which a plurality of respective merchandising machine delivery units will dispense articles of merchandise in which a plurality of sliding contacts are mounted for movement along respective first printed product line conductors on the undersurface of an upper board and for movement of spring fingers on the contacts over lines of holes in a detent board for selective engagement with second printed price line conductors carried by the upper surface of a lower board and extending in a direction generally perpendicular to that of the first conductors.
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| 120 | Keyboard, digital coding, switch for digital logic, and low power detector switches | US3699294D | 1971-05-18 | US3699294A | 1972-10-17 | SUDDUTH WILLIAM B |
| Electric switches are described in which a resilient, electrically conductive, elastomeric member is spaced adjacent but apart from contact means; among features are the elastomeric connector: of sheet form; on metal contacts as a movable contact bridge; defining a simple and durable multiple switch array including a keyboard, a digital coding assembly and a detector; and as the means, especially with proper selection of distributed conductive particles in the elastomer for limited conductivity, of eliminating the electrical effects of bounce in solid state electronic logic circuitry and the like. Fabrication of the switch as a simple, thin compact laminate using printed circuit boards is shown using the preferred silicone elastomer and carbon filler. In preferred embodiments pressure against conductive elastomer sheet means will cause it to connect to a contact element conductively and release of pressure will cause the sheet means to disconnect. The sheet means can be used as a floating connection for one or more circuit elements, and in this form has particular application in a keyboard assembly, particularly in connection with replaceable printed circuit boards and in digital coding techniques with a single printed circuit board. Preferably, the sheet means resiliently, reversibly deforms from first to second conditions, typically engaging the contacts in the deformed or bulged condition. Preferably in one condition the sheet means takes a planar form, positioned by a spacer layer from the contacts. And preferably the contacts are elements of a printed circuit.
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