EP1400999A1 - Folientastatur - Google Patents

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Publication number
EP1400999A1
EP1400999A1 EP03019634A EP03019634A EP1400999A1 EP 1400999 A1 EP1400999 A1 EP 1400999A1 EP 03019634 A EP03019634 A EP 03019634A EP 03019634 A EP03019634 A EP 03019634A EP 1400999 A1 EP1400999 A1 EP 1400999A1
Authority
EP
European Patent Office
Prior art keywords
antenna
membrane keyboard
foils
membrane
keyboard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03019634A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lutz Porsch
Gunther Schneegass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoermann Funkwerk Koelleda GmbH
Original Assignee
Hoermann Funkwerk Koelleda GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoermann Funkwerk Koelleda GmbH filed Critical Hoermann Funkwerk Koelleda GmbH
Publication of EP1400999A1 publication Critical patent/EP1400999A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/048—Inductive or infrared coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/038—Anti-vandalism

Definitions

  • the invention relates to a membrane keyboard consisting of a composite of several superimposed foils, suitable for entering commands electronically device to be controlled.
  • Membrane keyboards are known per se from the prior art. They consist of a film composite of several films stacked on top of one another, for example a cover or decorative film on the surface, one or more electrically conductive Switching foils or a switching comb, which has contacts that are at finger pressure be short-circuited to a button formed in the decorative film and thereby a Trigger switching function and one or more spacer foils, which are used for reinforcement serve the film composite.
  • the button function can be used with tactile feedback or without tactile feedback be trained.
  • tactile feedback the Printed switching comb is short-circuited, for switches with tactile feedback the contact is actuated, for example, via an additional snap disk.
  • electroluminescent light sources or light-emitting diodes in the membrane keyboard built-in, for example to provide information about the operating status of a device to which the membrane keyboard is assigned.
  • the object of the invention is to develop a membrane keyboard of the type described above so that an even more efficient Control of a coupled device, in particular a device that has a transmitting / receiving device is possible.
  • a membrane keyboard of the type described above has an intermediate two of the foils embedded antenna on.
  • the antenna can preferably be used as a microwave antenna be carried out, in particular as an "F” or “patch” antenna, as described in Kin-Lu Wong: “Compact And Broadband Microstrip Antenna”, published by Wiley Europe London, 2001.
  • the antenna embedded in the membrane keyboard can advantageously be connected via connecting lines be connected to a transceiver, which is part of the to be controlled Device.
  • connection lines are provided, for example on a narrow side of the membrane keyboard lead into contacts from where the coupling to the device or the Transmitting / receiving device can be made.
  • a conductive one can advantageously be used Base plate of the membrane keyboard or a conductive foil of the membrane keyboard serve.
  • Such a keyboard can be used, for example, as a front film for a terminal or another Be assigned to the operator panel and be used to enter commands. You can also Luminescent diodes in the keyboard to display certain operating states of the assigned Device. Furthermore, the keyboard can also be used with electroluminescent foils be equipped to create a night design.
  • Antennas of all currently known planar shapes can be used in particular the "F” and "Patch” antennas, as described in the book Kin-Lu Wong: “Compact And Broadband Microstrip Antennas”; published by Wiley Europe London, 2001 are.
  • the feed (the "connection") is advantageously carried out in the form of technology the membrane keypads known “Tails”, which are used for feeding the microwave antennas can be changed in the embodiment of a microstripline and with the HF-technically favorable adjustments (e.g. base resistance) can be.
  • the membrane keypads known “Tails” which are used for feeding the microwave antennas can be changed in the embodiment of a microstripline and with the HF-technically favorable adjustments (e.g. base resistance) can be.
  • the antenna connected transmitter / receiver device executed on a flexible circuit board his.
  • This circuit board provided with the transmitting / receiving device is then preferred embedded between two of the foils next to the antenna and via cable routes connected to the device to be controlled.
  • the antenna and the transceiver can be placed so close together within the membrane keyboard that none long microwave or RF lines are necessary and thus transmission losses be kept low. Specially adapted microwave or HF-compatible connectors are not required.
  • the transceiver can be mounted on the surface with flat, on the flexible circuit board to be arranged components.
  • This technology is known to the person skilled in the art as “SMD” (surface mounted devices) technology and therefore need not be explained in more detail here.
EP03019634A 2002-09-17 2003-09-05 Folientastatur Withdrawn EP1400999A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002144083 DE10244083A1 (de) 2002-09-17 2002-09-17 Folientastatur
DE10244083 2002-09-17

Publications (1)

Publication Number Publication Date
EP1400999A1 true EP1400999A1 (de) 2004-03-24

Family

ID=31896288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03019634A Withdrawn EP1400999A1 (de) 2002-09-17 2003-09-05 Folientastatur

Country Status (2)

Country Link
EP (1) EP1400999A1 (da)
DE (1) DE10244083A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514587A (zh) * 2016-01-28 2016-04-20 重庆邮电大学 板载PCB倒F天线的2.4GHz射频通信模块

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057546A1 (de) * 2006-12-06 2008-01-31 Siemens Ag Bedieneinheit zur Bedienung einer Werkzeugmaschine, Produktionsmaschine und/oder eines Roboters
DE102014105918A1 (de) * 2014-04-28 2015-10-29 Phoenix Contact Gmbh & Co. Kg Energieversorgungsgerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112597U1 (da) * 1991-10-10 1992-06-11 Buch Elektronik Gmbh, 3257 Springe, De
EP0701296A1 (en) * 1994-08-18 1996-03-13 Plessey Semiconductors Limited Slot antenna
US6138050A (en) * 1997-09-17 2000-10-24 Logitech, Inc. Antenna system and apparatus for radio-frequency wireless keyboard
US20020047804A1 (en) * 2000-10-09 2002-04-25 Indra Ghosh Patch antenna for the microwave range
US20030080944A1 (en) * 2001-10-25 2003-05-01 Nobuyuki Takahashi Wireless keyboard

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112597U1 (da) * 1991-10-10 1992-06-11 Buch Elektronik Gmbh, 3257 Springe, De
EP0701296A1 (en) * 1994-08-18 1996-03-13 Plessey Semiconductors Limited Slot antenna
US6138050A (en) * 1997-09-17 2000-10-24 Logitech, Inc. Antenna system and apparatus for radio-frequency wireless keyboard
US20020047804A1 (en) * 2000-10-09 2002-04-25 Indra Ghosh Patch antenna for the microwave range
US20030080944A1 (en) * 2001-10-25 2003-05-01 Nobuyuki Takahashi Wireless keyboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514587A (zh) * 2016-01-28 2016-04-20 重庆邮电大学 板载PCB倒F天线的2.4GHz射频通信模块

Also Published As

Publication number Publication date
DE10244083A1 (de) 2004-03-25

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