WO1992000851A1 - Keyboard - Google Patents

Keyboard Download PDF

Info

Publication number
WO1992000851A1
WO1992000851A1 PCT/AU1991/000301 AU9100301W WO9200851A1 WO 1992000851 A1 WO1992000851 A1 WO 1992000851A1 AU 9100301 W AU9100301 W AU 9100301W WO 9200851 A1 WO9200851 A1 WO 9200851A1
Authority
WO
WIPO (PCT)
Prior art keywords
keyboard
segments
keys
hinge means
pivotable
Prior art date
Application number
PCT/AU1991/000301
Other languages
French (fr)
Inventor
Mark Goldstein
Elizabeth Goldstein
Original Assignee
Mark Goldstein
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 Mark Goldstein filed Critical Mark Goldstein
Priority to JP51196291A priority Critical patent/JP3261421B2/en
Priority to DE69127446T priority patent/DE69127446T2/en
Priority to EP91912738A priority patent/EP0538329B1/en
Priority to CA002087034A priority patent/CA2087034C/en
Publication of WO1992000851A1 publication Critical patent/WO1992000851A1/en
Priority to US08/434,109 priority patent/US5543790A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/10—Arrangements of keyboards, e.g. key button disposition
    • B41J5/105—Constructional details of keyboard frames, e.g. adjusting or fixation means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G06F3/0216—Arrangements for ergonomically adjusting the disposition of keys of a keyboard
    • 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
    • H01H13/84—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 characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/046—Casings convertible
    • H01H2223/05—Casings convertible composed of hingedly connected sections

Definitions

  • the following invention relates to keyboards, and more particularly though not exclusively to a keyboard formed in two or more mutually pivotable segments.
  • Known keyboards of the type used at a computer terminal for example, comprise a unitary board onto which a plurality of alpha numeric keys are attached. It is a disadvantage of such known keyboards that the wrists and/or arms and shoulders of an operator must be contorted into a configuration which is stressful to the user after prolonged use of the keyboard. This problem is brought about by the fact that the hands of the user must be turned outwardly by pivoting of the wrists relative to the forearms.
  • a keyboard having mounted thereon a plurality of keys, the keyboard comprising at least two segments which are mutually detachable and/or pivotable and wherein each segment of the keyboard has mounted thereon some of said keys.
  • the keyboard comprises two mutually pivotable segments which are attached to one another at a top end of the keyboard by way of a hinge means such that a bottom end of the keyboard may spread apart in a substantially horizontal plane.
  • the hinge means is adapted to allow pivoting in both horizontal and vertical planes such that said two segments of the keyboard may reside in different planes, such that the center of the keyboard is raised so as to reduce pronation and therefore decrease tension in the wrists and forearms of a user.
  • said hinge means is a ball and socket joint.
  • a support means is provided generallybelow the ball and socket joint so as to maintain the central region of the keyboard at a raised preselected level.
  • a number pad region of the keyboard is pivotable relative to one of said segments such that the number pad region may reside in a plane other than the plane of said segment to which said number pad is hinged.
  • the keyboard is divided into segments which coincide with generally accepted keyboard areas.
  • the present invention provides means by which wrists of an operator need not be contorted as they would be in use of a conventional keyboard.
  • a cable or any suitable contact means may be provided between the two segments.
  • Fig. 1 is a schematic plan view of a keyboard
  • Fig. 2 is a schematic elevational view of the keyboard of Fig. 1.
  • Segments 2 and 3 of keyboard 1 are mutually attached by means of hinge 6 which may provide one or more degrees of freedom of relative movement between segments 2 and 3.
  • Hinge 6 in the preferred embodiment is of ball and socket type construction.
  • Segment 4 of keyboard 1 which has mounted thereon numerical keys 5 is attached to segment 3 of hinge 7.
  • Hinge 7 may extend along line 8 illustrated in Fig. 1 so as to provide 1 degree of relative movement between segments 3 and 4.
  • a ball and socket type joint as employed between segments 2 and 3 may be located at either an upper or lower end of line 8 in Fig. 1.
  • segments 2 and 3 of keyboard 1 may pivot with respect to one another while each remaining in a single plane. As depicted in Fig. 2 however a center region of keyboard 1 is raised above the level of a desk on which the keyboard is supported.
  • Segments 2, 3 and 4 of keyboard 1 may be completely detached form one another to provide an additional degree of freedom of relative positioning therebetween.

Abstract

The invention relates to a keyboard (1) to be used for example at a computer terminal. The preferred embodiment comprises a keyboard (1) having mounted thereon a number of keys (5), the keyboard being formed in at least two segments (2, 3) which are mutually detachable and/or pivotable and wherein each of the segments (2, 3) of the keyboard (1) has mounted thereon some of the keys (5). The pivoting/detachable nature of the keyboard aims at reducing stress and discomfort to the user by eliminating contortion to the operators wrists. More particularly, discomfort to the user caused by pronation of the wrists and/or supination of the wrists is reduced.

Description

KEYBOARD
FIELD OF THE INVENTION
The following invention relates to keyboards, and more particularly though not exclusively to a keyboard formed in two or more mutually pivotable segments.
PRIOR ART
Known keyboards of the type used at a computer terminal for example, comprise a unitary board onto which a plurality of alpha numeric keys are attached. It is a disadvantage of such known keyboards that the wrists and/or arms and shoulders of an operator must be contorted into a configuration which is stressful to the user after prolonged use of the keyboard. This problem is brought about by the fact that the hands of the user must be turned outwardly by pivoting of the wrists relative to the forearms.
Discomfort to the user caused by pronation of the wrists is also a problem. It is desirable to reduce pronation and aim for supination of the wrists.
OBJECT OF THE INVENTION
It is the object of the present invention to overcome or
substantially ameliorate the above disadvantages.
DISCLOSURE OF THE INVENTION
There is disclosed herein a keyboard having mounted thereon a plurality of keys, the keyboard comprising at least two segments which are mutually detachable and/or pivotable and wherein each segment of the keyboard has mounted thereon some of said keys.
Typically, the keyboard comprises two mutually pivotable segments which are attached to one another at a top end of the keyboard by way of a hinge means such that a bottom end of the keyboard may spread apart in a substantially horizontal plane.
Advantageously, the hinge means is adapted to allow pivoting in both horizontal and vertical planes such that said two segments of the keyboard may reside in different planes, such that the center of the keyboard is raised so as to reduce pronation and therefore decrease tension in the wrists and forearms of a user.
Generally, said hinge means is a ball and socket joint. Advantageously, a support means is provided generallybelow the ball and socket joint so as to maintain the central region of the keyboard at a raised preselected level.
Beneficially, a number pad region of the keyboard is pivotable relative to one of said segments such that the number pad region may reside in a plane other than the plane of said segment to which said number pad is hinged.
Typically, the keyboard is divided into segments which coincide with generally accepted keyboard areas.
The present invention provides means by which wrists of an operator need not be contorted as they would be in use of a conventional keyboard.
In-order to electrically connect the keys of one segment of the keyboard to the other, a cable or any suitable contact means may be provided between the two segments.
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings, wherein:
Fig. 1 is a schematic plan view of a keyboard, and
Fig. 2 is a schematic elevational view of the keyboard of Fig. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In the accompanying drawings there is schematically depicted a keyboard generally indicated by reference numeral 1 Keyboard 1
comprises separate segments 2, 3 and 4 each having mounted thereto a plurality of keys 5.
Segments 2 and 3 of keyboard 1 are mutually attached by means of hinge 6 which may provide one or more degrees of freedom of relative movement between segments 2 and 3. Hinge 6 in the preferred embodiment is of ball and socket type construction.
Segment 4 of keyboard 1 which has mounted thereon numerical keys 5 is attached to segment 3 of hinge 7. Hinge 7 may extend along line 8 illustrated in Fig. 1 so as to provide 1 degree of relative movement between segments 3 and 4. Alternatively, a ball and socket type joint as employed between segments 2 and 3 may be located at either an upper or lower end of line 8 in Fig. 1.
It should be appreciated that segments 2 and 3 of keyboard 1 may pivot with respect to one another while each remaining in a single plane. As depicted in Fig. 2 however a center region of keyboard 1 is raised above the level of a desk on which the keyboard is supported.
Segments 2, 3 and 4 of keyboard 1 may be completely detached form one another to provide an additional degree of freedom of relative positioning therebetween.
Should an operator of the keyboard not be comfortable with a hinged apart orientation of the keyboard, it may simply be returned to a conventional configuration.

Claims

Cl ai ms :
1. A keyboard having mounted thereon a plurality of keys, the keyboard comprising at least two segments which are mutually detachable and/or pivotable and wherein each segment of the keyboard has mounted thereon some of said keys.
2. The keyboard of claim 1 comprising two mutually pivotable segments which are attached to one another at the top edge of the keyboard by way of hinge means such that a bottom edge of the keyboard may spread apart in a substantially horizontal plane.
3. The keyboard of claim 2 wherein the hinge means is adapted to allow pivoting in both horizontal and vertical planes.
4. The keyboard of claim 2 wherein said hinge means is a ball and socket joint.
5. The keyboard of claim 2 wherein a support means is provided generally below the hinge means so as to maintain a central region of the keyboard at a raised preselected level.
6. The keyboard of claim 1 wherein a number pad region of the keyboard is pivotable relative to one of said segments such that the number pad regionmay reside in a plane other than the plane of said segment to which said number pad region is hinged.
7. The keyboard of claim 1 being divided Into segments which coincide with generally accepted keyboard areas.
PCT/AU1991/000301 1990-07-10 1991-07-08 Keyboard WO1992000851A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP51196291A JP3261421B2 (en) 1990-07-10 1991-07-08 keyboard
DE69127446T DE69127446T2 (en) 1990-07-10 1991-07-08 KEYBOARD
EP91912738A EP0538329B1 (en) 1990-07-10 1991-07-08 Keyboard
CA002087034A CA2087034C (en) 1990-07-10 1991-07-08 Keyboard
US08/434,109 US5543790A (en) 1990-07-10 1995-05-03 Keyboard

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK112390 1990-07-10
AUPK1123 1990-07-10

Publications (1)

Publication Number Publication Date
WO1992000851A1 true WO1992000851A1 (en) 1992-01-23

Family

ID=3774821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1991/000301 WO1992000851A1 (en) 1990-07-10 1991-07-08 Keyboard

Country Status (9)

Country Link
US (2) US5424728A (en)
EP (1) EP0538329B1 (en)
JP (1) JP3261421B2 (en)
CA (1) CA2087034C (en)
DE (1) DE69127446T2 (en)
HK (1) HK1001722A1 (en)
NZ (1) NZ238895A (en)
SG (1) SG41943A1 (en)
WO (1) WO1992000851A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207043U1 (en) * 1992-05-25 1992-09-03 Marcinski, Dietmar, 7980 Ravensburg, De
US5574481A (en) * 1994-01-18 1996-11-12 Silitek Corporation Detachable folding keyboard device
EP0773493A2 (en) * 1995-11-09 1997-05-14 Fujitsu Takamisawa Component Limited Compact ergonomic keyboard
EP0671751A3 (en) * 1994-03-11 1998-03-25 Cherry Mikroschalter GmbH Ergonomic keyboard
US6022156A (en) * 1993-12-10 2000-02-08 Blish; Nelson A. Ergonomic keyboard
US6641316B1 (en) 1999-08-27 2003-11-04 Mark Goldstein Adjustable keyboard with adjusting and locking mechanism, and method of its use
US9678580B2 (en) 2004-03-23 2017-06-13 Keypoint Technologies (UK) Limted Human-to-computer interfaces
US9798717B2 (en) 2005-03-23 2017-10-24 Keypoint Technologies (Uk) Limited Human-to-mobile interfaces
US10365727B2 (en) 2005-03-23 2019-07-30 Keypoint Technologies (Uk) Limited Human-to-mobile interfaces
IT202100013133A1 (en) 2021-05-20 2022-11-20 Roberto Mattei HINGED RELEASE FOR ELECTRONIC KEYBOARDS AIMED AT EXPLOITING THE EDGE OF THE WORK TABLE

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG41943A1 (en) * 1990-07-10 1997-08-15 Elizabeth Goldstein Keyboard
US5660488A (en) * 1993-04-29 1997-08-26 Miller; Timothy M. Ergonomically condensed QWERTY keyboard
US5616897A (en) * 1993-06-30 1997-04-01 Weber; Michael R. Flexible keyboard
US5596480A (en) * 1994-03-28 1997-01-21 Zenith Data Systems Corporation Split rotatable keyboard
US5847697A (en) * 1995-01-31 1998-12-08 Fujitsu Limited Single-handed keyboard having keys with multiple characters and character ambiguity resolution logic
US5667319A (en) * 1995-03-17 1997-09-16 Satloff; James Simplified computer keyboard
KR0130878Y1 (en) * 1995-07-18 1998-12-15 김광호 The keyboard splitting structure of the portable computer
US5653543A (en) * 1995-07-19 1997-08-05 Hosiden Corporation Folding keyboard
KR100204945B1 (en) * 1995-10-12 1999-06-15 윤종용 Rotation control apparatus of keyboard of notebook computer
US5731808A (en) * 1996-01-11 1998-03-24 Gaither; Joseph A. Ergonomic keyboard
US6109726A (en) * 1996-03-09 2000-08-29 Lee; Yong-Duk Service station of ink-jet printer
GB2323331B (en) 1997-03-21 2000-11-22 Simon Richard Daniel Collapsible keyboard
US6046731A (en) * 1997-05-08 2000-04-04 Ericsson Inc. Method and apparatus for split keyboard control
US5841635A (en) * 1997-09-29 1998-11-24 Ericsson, Inc. Flexible printed circuit for split keyboard and method of assembly
US6088220A (en) * 1997-10-02 2000-07-11 Katz; Michael Pocket computer with full-size keyboard
US6005497A (en) * 1997-10-20 1999-12-21 Ericsson Inc. Power control latch
US6563434B1 (en) 1997-11-12 2003-05-13 Think Outside, Inc. System and method for detecting key actuation in a keyboard
US5995025A (en) * 1997-12-18 1999-11-30 Daniel I. Sternglass Folding keyboard with sliding segments for electronic products
US5982613A (en) * 1997-12-18 1999-11-09 Daniel I. Sternglass Open-surfaced receptacle in an electronic product for a removable electronic module
US6025986A (en) * 1997-12-18 2000-02-15 Daniel I. Sternglass Retractable palmrest for keyboard-equipped electronic products
US6104385A (en) * 1998-03-26 2000-08-15 Hobbs; William D. Computer keyboard
US6266234B1 (en) * 1998-06-26 2001-07-24 Micron Technology, Inc. Expandable computer keyboard
US6215419B1 (en) 1998-06-26 2001-04-10 Micron Electronics, Inc. Method for operating an expandable computer keyboard
US6734809B1 (en) * 1999-04-02 2004-05-11 Think Outside, Inc. Foldable keyboard
US6132118A (en) * 1999-04-13 2000-10-17 Grezeszak; Lori Curved mound ergonomic keyboard
AU2757501A (en) * 2000-01-03 2001-07-16 David J. Levenson Adjustable ergonomic keyboard for use with stationary palm and elements thereof
US7064879B1 (en) * 2000-04-07 2006-06-20 Microsoft Corporation Magnetically actuated microelectrochemical systems actuator
US6774888B1 (en) * 2000-06-19 2004-08-10 International Business Machines Corporation Personal digital assistant including a keyboard which also acts as a cover
US6781077B2 (en) 2000-12-14 2004-08-24 Think Outside, Inc. Keyswitch and actuator structure
US6888534B1 (en) * 2001-01-30 2005-05-03 Palmone, Inc. Segmented keyboard for portable computer system
TW501053B (en) * 2001-05-07 2002-09-01 Darfon Electronics Corp Foldable keyboard with point stick
US20030030623A1 (en) * 2001-08-10 2003-02-13 Ching-Chiang Yu Collapsible keyboard
US6632038B2 (en) * 2001-12-19 2003-10-14 Douglas Trotman Keyboard arrangement for easy acquisition of typing skills
US6781824B2 (en) * 2002-01-29 2004-08-24 Palm, Inc. Encasement for handheld computer
US20030142471A1 (en) * 2002-01-29 2003-07-31 Palm, Inc. Replaceable cover for handheld computer
US20040066373A1 (en) * 2002-10-04 2004-04-08 Michael Wu Foldable computer keyboard
US20040222979A1 (en) * 2003-05-08 2004-11-11 Knighton Mark S. Multifunction floating button
US7088339B2 (en) * 2003-05-30 2006-08-08 Mike Gresham Ergonomic input device
US7326199B2 (en) * 2003-12-22 2008-02-05 Cutera, Inc. System and method for flexible architecture for dermatologic treatments utilizing multiple light sources
US7828489B1 (en) 2005-01-27 2010-11-09 Kinesis Corporation Keyboard with a pair of pivotable keying modules
US7393151B1 (en) * 2005-08-18 2008-07-01 Miller Jr William B Portable computer keyboard
JP2007148992A (en) * 2005-11-30 2007-06-14 Casio Comput Co Ltd Electronic device
US20070159465A1 (en) * 2006-01-10 2007-07-12 Samuel Choi Span and angle adjustable keyboard for an abnormally big body size user
US8289684B2 (en) 2006-04-19 2012-10-16 Kinesis Corporation Computer keyboard
DE102007012974A1 (en) 2007-03-14 2008-09-18 Preh Keytec Gmbh POS keyboard with at least one keypad and a card reader
DE102007025637A1 (en) 2007-06-01 2008-12-04 Preh Keytec Gmbh POS keyboard made up of two movably connected modules
USD585063S1 (en) 2007-11-27 2009-01-20 Kinesis Corporation Keyboard
US8454254B2 (en) * 2007-11-28 2013-06-04 Kinesis Corporation Support accessory for split keyboard
US20100156832A1 (en) * 2008-12-19 2010-06-24 Vargas Andrea E Ergonomic keyboard and laptop
US8427428B2 (en) 2009-03-31 2013-04-23 Key Ovation Llc Adjustable ergonomic keyboard
US8902167B2 (en) 2009-03-31 2014-12-02 Key Ovation, Llc Adjustable ergonomic keyboard
US8662769B2 (en) 2011-01-10 2014-03-04 Research In Motion Limited Keyboard with rotatable portion
US8686948B2 (en) 2012-02-03 2014-04-01 Synerdyne Corporation Highly mobile keyboard in separable components
US8414207B1 (en) 2012-02-03 2013-04-09 Synerdyne Corporation Ultra-compact mobile touch-type keyboard
US8896539B2 (en) 2012-02-03 2014-11-25 Synerdyne Corporation Touch-type keyboard with character selection through finger location on multifunction keys
US8629362B1 (en) 2012-07-11 2014-01-14 Synerdyne Corporation Keyswitch using magnetic force
US9921607B2 (en) * 2013-01-08 2018-03-20 Solatido Inc Portable user input system operable in two modes
US9235270B2 (en) 2013-02-26 2016-01-12 Synerdyne Corporation Multi-touch mechanical-capacitive hybrid keyboard

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940758A (en) * 1974-09-20 1976-02-24 Margolin George D Expandable keyboard for electronic pocket calculators and the like
US3990565A (en) * 1974-08-14 1976-11-09 Warren Felton Remote control bifurcated typewriter keyboard (Universal input matrix switch)
US4378553A (en) * 1981-03-13 1983-03-29 Mccall William C Data input system using a split keyboard
WO1984000518A1 (en) * 1982-07-28 1984-02-16 Ericsson Telefon Ab L M Keyboard for terminals, typewriters and the like
US4509873A (en) * 1983-05-05 1985-04-09 Ryan W Kenneth Alphanumeric section of office machine keyboards
WO1985003035A1 (en) * 1984-01-16 1985-07-18 Roy Jeremy Lahr Splittable keyboard for word processing, typing and other information input systems
AU5903886A (en) * 1986-05-13 1987-12-01 Hodges, A.N. Adjustable keyboard

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1089689A (en) * 1913-02-13 1914-03-10 Juan G Holguin Burboa Type-writing machine.
JPS57125069A (en) * 1980-12-19 1982-08-04 Int Standard Electric Corp Key board device
WO1983000308A1 (en) * 1981-07-15 1983-02-03 Murphey, William, R. Adjustable input keyboard
US4613247A (en) * 1982-07-26 1986-09-23 Fwm Enterprises, Inc. Multiple format keyboard
US4597681A (en) * 1983-12-15 1986-07-01 Hodges Anthony N Adjustable keyboard
DE3413308A1 (en) * 1984-04-09 1984-10-31 Thomas Caric Divisible keyboard
DE3436189A1 (en) * 1984-10-03 1985-05-15 Günther Dipl.-Ing. 2800 Bremen Schultze Electric typewriter with divided keyboard
JPS61208113A (en) * 1985-03-11 1986-09-16 Toshiba Corp Keyboard
GB2189195A (en) * 1986-04-16 1987-10-21 Sun Jiun Yih Separable keyboard for computer; key with alterable liquid crystal display
WO1987006883A1 (en) * 1986-05-13 1987-11-19 Anthony Neal Hodges Adjustable keyboard
US4824268A (en) * 1987-08-27 1989-04-25 Diernisse H V Ergonomic keyboard
KR890701374A (en) * 1987-09-15 1989-12-20 팜 미첼 Keyboard system
JPH0317723A (en) * 1989-06-14 1991-01-25 Fujisoku:Kk Keyboard device
US5067834A (en) * 1989-07-07 1991-11-26 Szmanda Jeffrey P Input keyboard apparatus for information processing device and other keyboard devices
WO1991003012A1 (en) * 1989-08-18 1991-03-07 Robotron Pty. Ltd. Compact input/output apparatus
WO1991006154A1 (en) * 1989-10-20 1991-05-02 Thomas Kaiser A data processing system input device
US5073050A (en) * 1990-06-12 1991-12-17 Steffen Andrews Ergonomic keyboard apparatus
US5122786A (en) * 1990-06-27 1992-06-16 Freeman Rader Ergonomic keypads for desktop and armrest applications
SG41943A1 (en) * 1990-07-10 1997-08-15 Elizabeth Goldstein Keyboard
US5143341A (en) * 1990-07-30 1992-09-01 Juster Robert W Resilient keyboard rest and lap adapter
US5056743A (en) * 1990-08-17 1991-10-15 Zwar Kurt F Arm support system
US5160919A (en) * 1990-09-10 1992-11-03 Mohler Jack M Ergonomic keyboard
US5135190A (en) * 1990-10-23 1992-08-04 Wilson Robert W Articulating ergonomic support system
US5120117A (en) * 1991-05-24 1992-06-09 Williams Chauncey L Computer support platform
US5178477A (en) * 1991-06-06 1993-01-12 Gambaro Thomas L Ergonomic keyboard input device
US5351066A (en) * 1991-07-08 1994-09-27 Ergologic Enterprises Inc. Rotating plane keyboard
US5214428A (en) * 1991-09-18 1993-05-25 Gregory Allen Data input grid for computer
US5273250A (en) * 1991-11-18 1993-12-28 Situs, Inc. Ergonomic keyboard support device
US5137384A (en) * 1992-01-27 1992-08-11 Spencer Jeffery B Ergonomic-interface keyboard system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990565A (en) * 1974-08-14 1976-11-09 Warren Felton Remote control bifurcated typewriter keyboard (Universal input matrix switch)
US3940758A (en) * 1974-09-20 1976-02-24 Margolin George D Expandable keyboard for electronic pocket calculators and the like
US4378553A (en) * 1981-03-13 1983-03-29 Mccall William C Data input system using a split keyboard
WO1984000518A1 (en) * 1982-07-28 1984-02-16 Ericsson Telefon Ab L M Keyboard for terminals, typewriters and the like
US4509873A (en) * 1983-05-05 1985-04-09 Ryan W Kenneth Alphanumeric section of office machine keyboards
WO1985003035A1 (en) * 1984-01-16 1985-07-18 Roy Jeremy Lahr Splittable keyboard for word processing, typing and other information input systems
AU5903886A (en) * 1986-05-13 1987-12-01 Hodges, A.N. Adjustable keyboard

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207043U1 (en) * 1992-05-25 1992-09-03 Marcinski, Dietmar, 7980 Ravensburg, De
US6022156A (en) * 1993-12-10 2000-02-08 Blish; Nelson A. Ergonomic keyboard
US5574481A (en) * 1994-01-18 1996-11-12 Silitek Corporation Detachable folding keyboard device
EP0671751A3 (en) * 1994-03-11 1998-03-25 Cherry Mikroschalter GmbH Ergonomic keyboard
EP0898221A1 (en) * 1995-11-09 1999-02-24 Fujitsu Takamisawa Component Limited Compact ergonomic keyboard
US5788386A (en) * 1995-11-09 1998-08-04 Fujitsu Limited Compact ergonomic keyboard
EP0773493A3 (en) * 1995-11-09 1997-09-10 Fujitsu Takamisawa Component Compact ergonomic keyboard
EP0773493A2 (en) * 1995-11-09 1997-05-14 Fujitsu Takamisawa Component Limited Compact ergonomic keyboard
US6641316B1 (en) 1999-08-27 2003-11-04 Mark Goldstein Adjustable keyboard with adjusting and locking mechanism, and method of its use
US9678580B2 (en) 2004-03-23 2017-06-13 Keypoint Technologies (UK) Limted Human-to-computer interfaces
US9798717B2 (en) 2005-03-23 2017-10-24 Keypoint Technologies (Uk) Limited Human-to-mobile interfaces
US10365727B2 (en) 2005-03-23 2019-07-30 Keypoint Technologies (Uk) Limited Human-to-mobile interfaces
IT202100013133A1 (en) 2021-05-20 2022-11-20 Roberto Mattei HINGED RELEASE FOR ELECTRONIC KEYBOARDS AIMED AT EXPLOITING THE EDGE OF THE WORK TABLE

Also Published As

Publication number Publication date
DE69127446D1 (en) 1997-10-02
US5543790A (en) 1996-08-06
JP3261421B2 (en) 2002-03-04
EP0538329B1 (en) 1997-08-27
CA2087034A1 (en) 1992-01-11
EP0538329A4 (en) 1993-09-29
EP0538329A1 (en) 1993-04-28
US5424728A (en) 1995-06-13
JPH06508227A (en) 1994-09-14
HK1001722A1 (en) 1998-07-03
NZ238895A (en) 1993-12-23
SG41943A1 (en) 1997-08-15
DE69127446T2 (en) 1998-01-02
CA2087034C (en) 1999-09-21

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