WO2005055028A2 - Unite d'entree alphanumerique - Google Patents

Unite d'entree alphanumerique Download PDF

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Publication number
WO2005055028A2
WO2005055028A2 PCT/EP2004/013808 EP2004013808W WO2005055028A2 WO 2005055028 A2 WO2005055028 A2 WO 2005055028A2 EP 2004013808 W EP2004013808 W EP 2004013808W WO 2005055028 A2 WO2005055028 A2 WO 2005055028A2
Authority
WO
WIPO (PCT)
Prior art keywords
finger
keyboard
sensor system
computer
input device
Prior art date
Application number
PCT/EP2004/013808
Other languages
German (de)
English (en)
Other versions
WO2005055028A3 (fr
Inventor
Edmund F. Nagel
Original Assignee
Rupprecht & Partner
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 Rupprecht & Partner filed Critical Rupprecht & Partner
Publication of WO2005055028A2 publication Critical patent/WO2005055028A2/fr
Publication of WO2005055028A3 publication Critical patent/WO2005055028A3/fr

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202Constructional details or processes of manufacture of the input device
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Definitions

  • the invention relates to an alphanumeric computer input device to be operated with one hand, with an integrated mouse function and with profiled, stroke-movable individual keys, the keypad of which has a high-resolution weight and position sensor system for the input finger. Furthermore, a method for operating an alphanumeric input device to be operated with one hand with integrated mouse functions and profiled, movable keys is described, the keypad of which has a high-resolution weight sensor system for pressure-variable inputs and a high-resolution position sensor system for the input finger.
  • the usual computer input devices consist of two-handed MF-102 standard keyboards, with Windows keys (MF-104) this keyboard comprises 104 keys.
  • MF-104 Windows keys
  • a separate mouse or touchpad belongs to the input periphery of a computer. Space-saving keyboards are used in notebooks and mini PCs.
  • Computer input devices that determine the weight of an input finger and convert different pressures to different characters are known. This weight-controlled input variation is used above all via resistive touch surfaces.
  • the resistive, weakly electrically conductive film is bent more or less by the finger, depending on the pressure, and thus overcomes a gap (0.1 mm to 0.3 mm) to the printed circuit board under the resistive film.
  • the film forms pressure-dependent conductive connections, which are divided into pressure levels in the computer and to which certain characters are assigned.
  • Such high-resolution weight sensor fields are smooth on the surface and consequently cannot be used for use in a PC that is suitable for blind writing.
  • a disadvantage of the one-hand-operated input devices known from the prior art is that the character input is relatively complicated if the number of characters required according to the MF standard keyboard is to be entered. Either a large number of keys (EP 0 224 600 A1) are used and / or several keys have to be pressed at the same time (see US 4,442,506 A), which slows down input, and / or a relatively large number of switching functions for different character input of the actuating elements must be provided (see EP 0 050 565 A)
  • Keyboards which contain control elements for cursor control as a touchpad and which perform different functions according to different pressure levels.
  • the resistive film is used in all possible forms.
  • the weakly electrically conductive film lies selectively on tiny spacers over a printed circuit board due to the pressure
  • the finger is pressed against the conductor tracks where it forms electrical bridges between the conductor tracks.
  • This use of the resistive film as a touchpad does not correspond to the proximity sensor according to the invention.
  • corner electrodes on the film are energized.
  • the resistive film acts as a large capacitor plate over the sewn finger a current flows from it
  • Such devices are described, for example, in US Pat. No. 5,988,902.
  • the input part for characters, commands, letters, etc. and the cursor control with the mouse buttons disadvantageously require two separate input fields with two different designs
  • DE 102 40 642 A1 describes a pressure-sensitive keyboard which generates different signals through different finger pressures.
  • the difference in pressure levels is used in this example to differentiate the repetition of entries.
  • This embodiment differentiates between two or more pressure levels.
  • the triggering of the pressure levels is coupled to a button mechanism, which switches the switching paths fixed in this way with a fixed pressure.
  • the key levels are always connected to a key stroke.
  • a variable pressure on an input finger is not recorded for the entire keyboard area as a whole, but for each key individually, with the corresponding technical effort. This eliminates the need for additional finger location, but the number of possible variables at different positions is therefore limited to the number of keys. For example, if there are twenty keys with three pressure levels each - i.e. three different stroke lengths of the keys - there are a maximum of sixty characters enter
  • DE 102 01 192 A1 describes an input device for computers with which inputs can be set on a touch-sensitive sensor strip in conjunction with a display by spatially differentiating the pressure point.
  • the sensor therefore distinguishes in particular the position of a finger on the non-profiled, smooth sensor strip.
  • the user has no mechanical feedback as to which letter or character he is tapping.
  • tactile, movable keys that are spatially distributed over the keyboard
  • the input can only be recorded via the visual impression.
  • the user can disadvantageously never take his eyes off the display, a PC application is therefore impossible
  • DE 101 29 913 A1 shows a device in which additional memory for variable keyboard assignments can be switched on or switched over by an additional control key.
  • changing the keyboard key requires separate additional memory modules and controls. It is disadvantageous not to use an existing key repeatedly, for example due to different pressure levels.
  • the processing of the signals, in their variables, disadvantageously does not take place in the existing computer, but the setup requires its own computer add-ons.
  • the object of the present invention is to provide an alphanumeric input device, in particular for a computer, which can be operated with one hand and in which a cursor control is integrated.
  • the disadvantages of the prior art are to be avoided.
  • the weight of inputting the finger at any point is determined by a weight measurement of the entire keyboard plate and in, user individually arbitrarily set by Be ⁇ weight levels in different character inputs, each self-determined weight step converted.
  • the cursor control of the mouse is integrated into the keyboard without further, visible components, in that this cursor control is carried out by means of a finger which hovers contactlessly over the keys or only weakly touches the keys.
  • the indispensable, profiled keys make it impossible to slide a finger on the keys while pressing the same ones. Therefore, a determination is made of the finger position for the cursor control Berlick ⁇ ungslos, or only lightly touching the command inputs, ungstown capacitive closer ⁇ and with planar Sen 'sorfeld under the keys.
  • two keys are provided for the left and right mouse button and for scrolling on both sides of the central, non-contact sensor field, which can be operated by normal key presses. This function is only used during the "mouse" assignment
  • the known position-determining techniques of ultrasound, infrared, and light localization do not provide the necessary requirements.
  • Ultrasound technology requires correspondingly elevated sensors in the corner radii of the sensor field, which falsify the coordinate measurement with the slightest contamination.
  • IP65 protection regulations not feasible The IP65 regulations can be met with infrared technology and lighting technology, but the same problem arises with soiling as with sound technology.
  • solar radiation can trigger incorrect inputs with these technologies
  • the resistive capacitive sensor at a limited distance from the Z-axis of the keyboard, also detects the finger position relative to the X-, Y-axis of the keyboard in a contact-free manner.
  • the capacitive proximity sensor also serves the multifunctionality of a key Through this multifunctionality of the individual keys, in particular the one-hand operability of the input device is to be produced. Capacitive input fields do not tolerate electrostatic interference.
  • the silicone keyboard attached creates an electrically non-conductive shield with the effect of a dielectric
  • the facility can take a variety of occupancies. To switch them on, a small gesture of a finger across several keys is sufficient. In the alphabet assignment and the punctuation input, the keys can be operated in two pressure levels. To enter the command, sweeping over at least two adjacent keys is sufficient, although the pressure can advantageously only be so low that the key is not even depressed.
  • FIG. 1 shows an oblique view of an exemplary embodiment with the body of the input device cut open in layers
  • FIG. 2 shows a schematic section along line A-A of FIG. 1 with a schematic representation of the computer downstream of the subject of the invention and schematic representations of input fingers on the keys;
  • Fig. 4 top view of an embodiment showing the cursor control on the screen and its surface, as well as finger paths for command input;
  • Fig. 5 is a schematic sectional view of an alternative embodiment of the present invention.
  • FIG.1 A possible embodiment of the one-handed alphanumeric input device according to the invention is shown in Fig.1. It shows an oblique view of an exemplary embodiment with the body of the input device cut open in layers.
  • a keyboard plate (1) is provided for the left or right hand of the user, which is placed on the weight sensor system (2) on the base shell (28).
  • the keyboard plate (1) has a multi-layer structure.
  • the top layer is a silicone keyboard mat (14), which has cavities (16) under the key bodies (15). This allows the buttons (15) to be depressed and the user to feel the touch stroke clearly. However, the buttons (15) themselves do not have any electrical switching contact, whatever their nature.
  • the silicone keyboard mat (14) lies directly on the printed circuit board (19).
  • the silicone keyboard (14), the resistive film (5) and the circuit board (21) are firmly connected to one another.
  • the entire control electronics (21) are located on the underside of the printed circuit board.
  • the controller (21) processes, among other things, the signals from the weight sensors (2) which lie between the edge of the printed circuit board (19) and the base shell (25). These three to four sensors (2) register each change in weight of the keyboard (1), regardless of where the weight is entered on the keyboard (1). They represent the only load-bearing, mechanical connection between the keyboard plate (1) and base shell (25).
  • FIG. 2 shows a schematic section along the line AA of FIG. 1 with a schematic representation of the computer (6) connected downstream from the subject of the invention and schematic representations of input fingers (8, 9, 10).
  • the input fingers (8, 9, 10) shown show in particular input options according to the invention. If the middle input finger (9) shows a familiar image of entering data by pressing a key (15), the finger (9) shown on the left shows a special feature of an input form.
  • the finger (8) presses slightly on the button (15), but the button is not pressed down against the resistance to which it opposes this process. Nevertheless, the weight sensors (2) record the weight that is somewhere on the keyboard plate (1), the pressure of the input finger (8, 9).
  • This input form is used for command inputs, the lightly placed finger (8) sliding on a first key (15) - for example in the upper row of keys (22) - to an adjacent key (15), for example in the middle row of keys (26 ).
  • the position electronics (3) on the upper board (21) determine the position of the finger (8) on the keyboard (1).
  • This data is recorded by the controller (21) and sent to the computer via the connection cable (26).
  • moving the finger (8) with this low contact pressure over several rows of keys (for example from 25 to 26) is used for entering commands.
  • the movement directions for entering commands (38 to 48) are adapted to the natural movement patterns of humans.
  • the position sensor system (3) on the board (21) detects the non-contact finger (10) and transmits this data via the controller (21) to the computer (12), which calculates the cursor guidance therefrom.
  • the illustration also shows impressively the fact according to the invention, according to which the keys (15) are pseudo keys.
  • FIG. 3 shows an exploded view of the computer input device to be operated with one hand with its position sensor system (3), which is designed as a capacitive analog resistive sensor field (4, 5).
  • the resistive film (4) acts as a large capacitor plate if a finger (8, 9, 10), approaches, a small current flows from the plate (4) via the finger. Where the position of the current drain is on the film (4) is determined by the current difference between the respective electrodes (5) The closer a finger (8, 9, 10) comes to an electrode (5), the higher its share of the total current flowing and vice versa - the lower the current at the removed electrode.
  • the controller (21) determines the position of a finger (8, 9, 10) from these differences in the coordinate system.
  • the silicone keyboard (14) lies over the analog resistive film (4).
  • the weight sensors (2) are soldered onto the underside of the printed circuit board (19).
  • FIG. 4 shows a top view of the exemplary embodiment, with the cursor control being shown on the screen (49, 50).
  • Some deleting input options are shown as examples.
  • the left and right, vertical row of buttons shows the switching options (31 to 37) of assignments.
  • deleting command _ entries are shown, with a representation of the deletion path (38 to 48) via the keys (15).
  • the dashed lines on the keyboard (49) and the screen (50) represent the analogy to the movement of the finger (10) above the keyboard (1) for cursor movement.
  • the input area (28, 29) of the cursor control is described in detail.
  • the arrangement of the preferred key rows (22, 23) for frequently used letters or the row of keys (24) for entering rarely used letters is also described.
  • the directions of movement are marked with reference numerals, but in total represent only about a third of the possibilities of the device according to the invention.
  • two keys lying next to or above one another, with up to two different pressure levels, are actuated with just one finger by the single finger (27) "gripping next to it" between the two buttons (15)
  • An alternative embodiment of the present invention is described with reference to FIG. 5.
  • the keyboard 58 shown schematically in cross section has a rigid, essentially rectangular keyboard base 57 with feet arranged at the four corners.
  • keyboard blocks 51 are made of a sufficiently soft material, in this exemplary embodiment of a suitable thermoplastic material.
  • a keyboard plate 52 is arranged on the keyboard brackets 51 and extends over and covers the entire keyboard base 57. Individual key elements are formed in the keyboard plate 52.
  • the keyboard plate 52 is made of a sufficiently hard material and has a rough surface. The rough surface causes acoustic vibrations when swiping over the sufficiently hard keyboard plate.
  • a capacitive proximity sensor system 56 is arranged flatly below the keyboard plate 52. Finally, in a region of the keyboard between the keyboard base 58 and the keyboard plate 52, in which no individual keys are arranged, a microphone 55 is connected, which is connected to electronics 54.
  • a microphone 55 is used instead of the weight sensor system. If necessary, multiple microphones can be used.
  • the load on a finger is no longer determined, but rather the sound, the sound strength and the sound pattern which an input finger 53 causes when it is tapped or swiped on the keyboard plate 52.
  • the electronics 54 connected downstream of the microphone differentiate between volume and a knocking noise or a scratching noise.
  • the sound recognition can be done with conventional speech recognition chips. If the electronics reports the receipt of a sound (e.g. a tap), the position sensor system takes action and measures where the finger is on the keyboard.
  • the computer calculates the input from the input data of the position of the finger, the strength of the sound (strength of tapping) and the sound pattern (touch or swipe) (related to the current key assignment).
  • the input of a scratching sound means that the finger strokes several keys. For example, these are commands.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

L'invention concerne une unité d'entrée alphanumérique, destinée notamment à un ordinateur, comprenant un clavier (1) qui présente une fonction souris intégrée ainsi que des touches individuelles (15) mobiles, servant à produire des signaux interprétables. Cette unité d'entrée alphanumérique est caractérisée en ce qu'elle présente un premier système de détection (2) servant à détecter le poids d'un doigt (8, 9) touchant le clavier (1) ou le bruit produit par ce doigt, indépendamment de sa position sur le clavier (1), ainsi qu'un deuxième système de détection (3) servant à détecter la position du doigt (8, 9, 10), indépendamment du fait que ce doigt (8, 9, 10) touche réellement ou non le clavier (1). Toutes les entrées possibles par l'intermédiaire du clavier et de la souris peuvent être réalisées à partir des signaux des deux systèmes de détection (2, 3).
PCT/EP2004/013808 2003-12-05 2004-12-04 Unite d'entree alphanumerique WO2005055028A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT19542003 2003-12-05
ATA1954/2003 2003-12-05

Publications (2)

Publication Number Publication Date
WO2005055028A2 true WO2005055028A2 (fr) 2005-06-16
WO2005055028A3 WO2005055028A3 (fr) 2006-06-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8717202B1 (en) 2013-03-14 2014-05-06 Aimpad, LLC Force sensitive input devices and methods
US9189093B2 (en) 2010-02-10 2015-11-17 Microchip Technology Germany Gmbh System and method for the generation of a signal correlated with a manual input operation
US11061482B2 (en) 2019-01-04 2021-07-13 Aimpad, LLC Force sensitive input devices and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011435A1 (fr) * 1994-10-07 1996-04-18 Synaptics, Incorporated Detecteur de positions d'objets a caracteristique de deplacement de bords et a reconnaissance de deplacement
US5525980A (en) * 1992-04-24 1996-06-11 Sextant Avionique Method and apparatus for operating a capacitive tactile keyboard
US6137427A (en) * 1994-04-05 2000-10-24 Binstead; Ronald Peter Multiple input proximity detector and touchpad system
WO2001043063A1 (fr) * 1999-12-06 2001-06-14 Soundtouch Limited. Introduction de donnees
US20020030666A1 (en) * 1999-01-25 2002-03-14 Harald Philipp Capacitive position sensor
US6492979B1 (en) * 1999-09-07 2002-12-10 Elo Touchsystems, Inc. Dual sensor touchscreen utilizing projective-capacitive and force touch sensors
WO2003067511A2 (fr) * 2002-02-06 2003-08-14 Soundtouch Limited Pave tactile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5525980A (en) * 1992-04-24 1996-06-11 Sextant Avionique Method and apparatus for operating a capacitive tactile keyboard
US6137427A (en) * 1994-04-05 2000-10-24 Binstead; Ronald Peter Multiple input proximity detector and touchpad system
WO1996011435A1 (fr) * 1994-10-07 1996-04-18 Synaptics, Incorporated Detecteur de positions d'objets a caracteristique de deplacement de bords et a reconnaissance de deplacement
US20020030666A1 (en) * 1999-01-25 2002-03-14 Harald Philipp Capacitive position sensor
US6492979B1 (en) * 1999-09-07 2002-12-10 Elo Touchsystems, Inc. Dual sensor touchscreen utilizing projective-capacitive and force touch sensors
WO2001043063A1 (fr) * 1999-12-06 2001-06-14 Soundtouch Limited. Introduction de donnees
WO2003067511A2 (fr) * 2002-02-06 2003-08-14 Soundtouch Limited Pave tactile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9189093B2 (en) 2010-02-10 2015-11-17 Microchip Technology Germany Gmbh System and method for the generation of a signal correlated with a manual input operation
DE102011010919B4 (de) 2010-02-10 2018-05-09 Microchip Technology Germany Gmbh System und Verfahren zur Generierung eines mit einer manuellen Eingabeoperation korrelierenden Signales
US8717202B1 (en) 2013-03-14 2014-05-06 Aimpad, LLC Force sensitive input devices and methods
US8922399B2 (en) 2013-03-14 2014-12-30 Aimpad, LLC Force sensitive input devices and methods
US11061482B2 (en) 2019-01-04 2021-07-13 Aimpad, LLC Force sensitive input devices and methods

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Publication number Publication date
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