EP0534976A4 - Combination laptop and pad computer - Google Patents

Combination laptop and pad computer

Info

Publication number
EP0534976A4
EP0534976A4 EP19910904106 EP91904106A EP0534976A4 EP 0534976 A4 EP0534976 A4 EP 0534976A4 EP 19910904106 EP19910904106 EP 19910904106 EP 91904106 A EP91904106 A EP 91904106A EP 0534976 A4 EP0534976 A4 EP 0534976A4
Authority
EP
European Patent Office
Prior art keywords
housing
display
display means
computer
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Withdrawn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
EP19910904106
Other languages
English (en)
Other versions
EP0534976A1 (fr
Inventor
Jeffrey C. Hawkins
John J. Daly
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.)
AST Research Inc
Original Assignee
Grid Systems Corp
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 Grid Systems Corp filed Critical Grid Systems Corp
Publication of EP0534976A1 publication Critical patent/EP0534976A1/fr
Publication of EP0534976A4 publication Critical patent/EP0534976A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1679—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1632—External expansion units, e.g. docking stations

Definitions

  • This invention relates to the field of personal computers and, more particularly, to the field of portable computers, sometimes termed "laptop” computers.
  • Truly portable computers are known which are relatively small, light in weight and convenient to carry and use in transit. Such computers are small enough to be comfortably placed on one's lap, hence the term "laptop” computer.
  • Computers of this type are usually provided with a down-sized version of a standard personal computer keyboard, a display, a portable power supply (e.g., rechargeable batteries) and various interface connections for enabling the computer to be electrically coupled to other devices, such as input/output devices (disk drives, printers, and the like) and communication links (e.g., telephone lines).
  • input/output devices disk drives, printers, and the like
  • communication links e.g., telephone lines
  • the display is typically pivotally mounted to the computer housing at a point intermediate the front and rear margins so as to be maneuverable between a closed position in which the viewing surface of the display covers the keyboard and acts as a shield, and an opened position in which the keyboard is exposed and the viewing surface of the display is arranged at a viewing angle.
  • a representative portable computer having the above . components and configuration is disclosed in U.S. Patent No. 4,571,546 issued February 18, 1986 for "Portable Computer", the disclosure of which is hereby incorporated by reference.
  • a relatively new type of portable computer introduced by the Assignee of this application is smaller and lighter than a typical laptop computer and features a display operable by a conductive pointed stylus which is employed by a user in much the same manner as a pen or pencil on a pad: hence the term
  • pad computer This pad computer is meant to be employed like a pen and tablet in the field, and is devoid of any keyboard.
  • the pad computer is, however, provided with a connector for enabling an auxiliary keyboard to be connected to the pad computer in order to add keyboard capability to the pad computer.
  • the major mode of use envisioned in the pad computer encompasses the use of the stylus to permit hand entry of information into the computer via the display.
  • the invention comprises a portable computer which combines the standard keyboard capability of a laptop computer with the stylus data entry capability of a pad computer, but which is substantially the same size and weight as the pad computer.
  • the invention comprises a portable computer having a housing, a keyboard carried by the housing, and display means having a viewing surface and an opposing surface, the display means being coupled to the housing and moveable between a closed position in which the opposing surface of the display means covers the keyboard and an opened position in which the keyboard is uncovered and the display means is positioned rearwardly of the keyboard with the viewing surface arranged at a convenient viewing angle.
  • the invention can be used as a pad computer by entering information via a stylus applied directly to the display, while in the open position the portable computer can be used as either a standard laptop computer using the exposed keyboard for information entry or as a combination laptop and pad computer.
  • a stylus receptacle is provided in a mask region adjacent the viewing region of the display means, so that the stylus can be removably held in the receptacle.
  • a latching means for removably securing the display means to the housing.
  • the latching means is located approximately mid-way between a front portion and a rear portion of the computer housing.
  • the latching means comprises a pair of retractable latch members and corresponding slotted walls, with each latch member/slotted wall pair being located adjacent a different one of the opposing side margins of the computer housing.
  • each latch member is retractably carried by the display means, and each slotted wall comprises a portion of the computer housing.
  • the display means is pivotally mounted to the computer housing by means of a four bar hinge mechanism which includes first and second forward hinge members and a rear hinge means.
  • the forward hinge members pivotally couple the display means to the housing at hinge points positioned adjacent opposed housing side margins extending between the front and rear of the housing.
  • Each of the first and second forward hinge members are preferably coupled to the associated side of the display means adjacent a forward corner thereof; and the first and second forward hinge members are also each coupled to the housing side margins at a pivot point conveniently located between the front portion of the housing and the rear edge of the keyboard.
  • Each side margin of the housing is provided with a slotted wall for receiving the corresponding one of the hinge members.
  • the opposing surface of the display means is hinged to the housing by means of the rear hinge means which is coupled at the top edge thereof to the opposing surface of the display means and which is also coupled at the bottom edge thereof to the housing at a position rearwardly of the keyboard.
  • the housing is further provided with a rear wall portion with a recess formed therein for removably accommodating a power pack having a shape conformable with the recess.
  • the power pack includes a receptacle area for accommodating a battery power source, and also a battery charging circuit so that the batteries may be recharged with the power pack attached to the computer housing.
  • An auxiliary stylus mounting mechanism is provided along the rear top margin of the housing for removably attaching the stylus to the computer when the display means is in the closed position or the stylus is not needed.
  • the invention provides a light weight portable computer which is capable of functioning in either a laptop mode, a pad mode or a combination of the two.
  • the mounting mechanism for the display conveniently enables the display to cover the keyboard when use of the keyboard is not required, and to quickly uncover the keyboard and arrange the display in a convenient viewing angle when the computer is to be used on a desk top or other support surface.
  • FIG. 1 is a perspective view showing the invention with the display covering the keyboard
  • Fig. 2 is a perspective view of the preferred embodiment of the invention showing the display in the open position in which the keyboard is exposed;
  • Fig. 3 is a schematic side view illustrating the display articulation between the closed and open positions
  • Fig. 4 is an enlarged view partially broken away illustrating the right front hinge
  • Fig. 5 is a top plan view partially broken away illustrating the layout of some of the components internal to the computer housing;
  • Fig. 6 is a right side view partially in section showing some internal components of the embodiment of Fig. 1;
  • Fig. 7 is a sectional view taken along lines 7-7 of Fig. 2 illustrating one of the stylus receptacles in the mask adjacent the viewing surface of the display; and
  • Fig. 8 is a sectional view taken along lines 8-8 of
  • FIG. 1 showing the right latch engaged.
  • Figs. 1 and 2 illustrate the preferred embodiment of the invention in the closed and open positions, respectively.
  • the invention includes a housing generally designated with reference numeral 10 having a front portion 11, a rear portion 12, and side margins 13, 14.
  • a keyboard 15 is arranged in the forward portion of housing 10 and extends approximately mid ⁇ way toward the rear portion 12 of the housing 10.
  • a display generally designated with reference numeral 20 is pivotally mounted to the housing 10 in such a manner that the viewing surface 21 of the display 20 is exposed in both the closed position illustrated in Fig. 1 and the open position illustrated in Fig. 2.
  • Display 20 uses anLCD display with a transparent conductive screen overlay of the type disclosed in commonly assigned co-pending U.S. Patent Application Serial No. 07/365,147, filed June 12, 1989 for "HAND HELD COMPUTER", the disclosure of which is hereby incorporated by reference.
  • the display 21 is charged with a voltage gradient which alternates along the X and Y axes of the display as described in U.S. Patent No. 4,371,746, the disclosure of which is hereby incorporated by reference.
  • the display may be used either for conventional display purposes (i.e., for displaying information entered via keyboard 15, computational results and user prompts or other information) , or as an interactive data entry display tablet or pad.
  • a conductive stylus 30 is employed much like a pen or pencil by the user.
  • the tip of the stylus touches the conductive screen overlay of the display 20
  • the stylus transmits the magnitude of the voltage of the overlay at that point to an overlay controller within the computer by means of a conductive lead 31 which plugs into a jack 32 located in the rear of the housing.
  • a representative stylus 30 is disclosed in commonly assigned U.S. Patent No.
  • a pair of stylus clips 34, 35 are positioned to the rear of the top wall of housing 10 for removably affixing the stylus 30 to the housing for storage and carrying.
  • additional provision is made for removably affixing the stylus to the display 20.
  • stylus receptacles are formed into the mask border portion 23 of the display 20 at any convenient location thereof. As illustrated in Fig.
  • two such receptacles are formed: a first receptacle 25 located in the lower right hand corner and a second receptacle 26 located in the lower left hand corner.
  • a first receptacle 25 located in the lower right hand corner
  • a second receptacle 26 located in the lower left hand corner.
  • One suitable shape for the receptacle 26 is illustrated in Fig. 7.
  • the display 20 is pivotally mounted to the housing 10 by means of a pair of forward hinges 40 and a rear hinge plate 41 forming a four bar hinge mechanism.
  • each hinge 40 is pivotally attached at one end to the forward portion of the display side wall to form a first pivot 43.
  • the other end of the hinge 40 is pivotally attached to the housing 10 adjacent the side margin in a region conveniently located between the front and rear edge of the keyboard 15. In the preferred embodiment, this pivot 44 is approximately mid ⁇ way between the front and rear edge of the keyboard 15.
  • the rear hinge plate 41 is attached to the rear surface 27 of the display 20 (see Fig. 3) and also to the housing 10 near the rear portion 12.
  • the rear hinge plate is preferably fabricated from a relatively stiff material which can be readily fastened at pivot points to the rear surface of the display 20 and the housing 10 in a durable fashion.
  • the rear hinge plate 41 must accommodate the flexible electrical conductors (not illustrated) needed to electrically couple the display 20 to the computer elements within the housing 10. This may accomplished by a dual wall construction for rear hinge plate 41, so that the conductors are contained within an essentially flat envelope; or the conductors may be adhered to one of the two surfaces of the rear hinge plate 41, as desired.
  • the rear hinge plate 41 may comprise a wire frame or other equivalent mechanism for providing the hinge connection between the display 20 and the housing 10 as illustrated.
  • the hinge 40 when the display 20 is in the closed position, the hinge 40 is arranged in the full line position illustrated, with the majority of the hinge 40 being located in a recess 45 formed in the rear surface 27 of the display 20 along the side margins thereof near the forward edge.
  • the hinge 40 follows a motion path as illustrated in the sequential phantom and broken line views until the display achieves the tilted position illustrated in double phantom lines.
  • the display viewing surface 21 is inclined at an angle convenient to the user, and the hinge 40 is positioned within a recess 47 (see Fig. 2) and formed in the top wall of housing 10 adjacent the side margins.
  • the rear hinge plate 41 assists in providing lateral stability to the display 20 and also provides two axes of rotation parallel to the width of the display 20 and the housing 10.
  • the display 20 may be readily moved between the fully closed and fully open positions by simple manipulation of the display along the side margins thereof.
  • a pair of latch mechanisms generally designated with reference numeral 50 are provided at approximately the mid-point of the side margins of display 20.
  • a latching member 51 is rearwardly biased by means of spring 52 towards an engaged position in which the hook end 53 of the latch member 51 is engaged with the undersurface 55 of the top wall of housing 10 inside the rear edge of the hinge recess 47. In this position, the display 20 is securely latched so that the keyboard 15 remains covered by the opposing surface of display 20.
  • housing 10 also contains various hardware components of the computer.
  • a main logic board 71 positioned rearwardly of the keyboard 15 is contained within housing 10 and provides both mechanical support and electrical connection for various integrated circuits and connectors mounted on the board 71.
  • main logic board 71 supports a connector 73 for a memory card 74 on the top surface thereof and an additional memory card on the bottom surface (not shown) .
  • main logic board 71 supports a main on/off switch 76 accessible from the underside of the housing 10, and a stand-by switch 78.
  • modem unit 81 having a pair of telephone type connector sockets 82, 83 which are accessible through suitably shaped apertures in the side wall of housing 10.
  • a display backlight inverter circuit 84 is positioned within housing 10 adjacent the main logic board 71.
  • a pair of stylus jacks 32 are mounted to the housing along the rear portion of the left and right margins 13, 14 and are used to electrically couple the conductive stylus 30 to the circuitry on the main logic board 71.
  • An auxiliary keyboard jack 85, and a serial port connector 86 are mounted in the housing along the rear wall 12.
  • Housing 10 is provided with a power pack recess 90 along the rear wall as shown in Fig. 1 for accommodating a power pack 95.
  • Power pack 95 has a closed receptacle area for removably carrying a plurality internally located of DC batteries (not shown) used to power the computer in the field.
  • Power pack 95 is also provided with a conventional battery charging circuit 96 at the left end and internally thereof with a detachable power connector cord 97, so that the batteries can be charged while still in the receptacle.
  • a pair of power contacts 98, 99 are arranged as shown to provide electrical connection between the batteries in power pack 95 and the power input terminals (not illustrated) in housing 10.
  • the bottom wall 17 of housing 10 curves outwardly starting at approximately the mid-point thereof (just rearwardly of the keyboard 15) .
  • This curved portion 18 also provides an inclined angle to the plane of the housing 10 when the computer is placed on a desk top or other flat working surface to more closely approximate the feel of a conventional laptop computer or desk top personal computer. This inclined angle also facilitates use of the computer in the pad mode.
  • the entire computer has overall dimensions of a width of 11.5 in., a housing depth of 8.85 in., and a maximum thickness measured at the rear of 1.40 in.
  • the display has a depth of 8.15 in., a thickness of .45 in. at the rear half and .62 in. at the front half.
  • the thickness of the housing 10 in the front region is .39 in. Total weight of the computer is approximately four lbs.
  • the invention can be used as either a pad computer in combination with the stylus 30, or as a laptop computer by using the keyboard 15, or as a combination of both.
  • the stylus 30 When used as a pad computer, the stylus 30 is plugged into either one of the two jacks 32, the display 20 is normally in the closed position illustrated in Fig. 1, and the computer is held like a pad by the user.
  • the stylus When the invention is used as a laptop computer with keyboard entry only, the stylus can be placed in the clips 34, 35 formed in the rear of the top wall portion of the housing 10.
  • the stylus 30 can be temporarily placed in the receptacles 25 or 26 to free both hands of the user to manipulate the keyboard 15.

Abstract

L'invention se rapporte à un ordinateur portatif léger du type bloc-notes pouvant être utilisé avec ou sans clavier. Un tel ordinateur comprend un écran (20) monté sur un boîtier principal (10) de façon à pouvoir se déplacer entre une position fermée et une position ouverte. Dans la position fermée, un clavier (15) est recouvert par la face inférieure de l'écran (20) et la surface (21) de visualisation de l'écran reste visible, de façon à ce que l'ordinateur puisse être utilisé comme un bloc-notes au moyen d'un stylet conducteur (30) servant à l'entrée des données et des instructions. Dans la position ouverte, le clavier (15) est découvert, de façon à ce que l'ordinateur puisse être utilisé sur les genoux ou sur une table, ou en mode combiné incluant le mode 'bloc-notes'. L'écran (20) est monté sur le boîtier (10) à l'aide d'un mécanisme à quadrilatère articulé, et une paire de verrous (50) est placée approximativement à mi-chemin entre les parties avant et arrière du boîtier le long des marges latérales, de façon à assujettir l'écran en position fermée, pour permettre son rangement, son transport ou son utilisation en mode 'bloc-notes'. Un chargeur d'alimentation amovible, qui se fixe à l'arrière du boîtier, porte les piles ainsi qu'un circuit de chargement destiné à alimenter les éléments de l'ordinateur contenus dans le boîtier.
EP19910904106 1990-05-04 1991-01-28 Combination laptop and pad computer Withdrawn EP0534976A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51903190A 1990-05-04 1990-05-04
US519031 1990-05-04

Publications (2)

Publication Number Publication Date
EP0534976A1 EP0534976A1 (fr) 1993-04-07
EP0534976A4 true EP0534976A4 (en) 1993-06-16

Family

ID=24066483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910904106 Withdrawn EP0534976A4 (en) 1990-05-04 1991-01-28 Combination laptop and pad computer

Country Status (4)

Country Link
EP (1) EP0534976A4 (fr)
JP (1) JPH05508490A (fr)
AU (1) AU7243691A (fr)
WO (1) WO1991017493A1 (fr)

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IT1259329B (it) * 1992-03-12 1996-03-12 Olivetti & Co Spa Calcolatore portatile con coperchio
JP3077378B2 (ja) * 1992-04-09 2000-08-14 ソニー株式会社 タブレット入力装置の入力ペン収納機構
IT1261532B (it) * 1993-03-29 1996-05-23 Olivetti & Co Spa Calcolatore elettronico portatile con unita' a disco rimovibile
US5375076A (en) * 1993-09-10 1994-12-20 Compaq Computer Corporation Combined notepad and notebook computer
US6870730B2 (en) 1995-09-26 2005-03-22 Psion-Computers Plc Computer with a pen or touch sensitive display
GB9519556D0 (en) * 1995-09-26 1995-11-29 Psion Plc Casing for computing equipment
US6129430A (en) * 1999-06-03 2000-10-10 Inventec Corp. Stylus removal mechanism
USD869457S1 (en) * 2018-05-03 2019-12-10 Compal Electronics, Inc. Notebook computer with camera module
USD869458S1 (en) * 2018-05-03 2019-12-10 Compal Electronics, Inc. Notebook computer with camera module

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EP0149762A1 (fr) * 1983-11-30 1985-07-31 International Standard Electric Corporation Terminal de bureau
US4718740A (en) * 1986-10-28 1988-01-12 Allied Corporation Housing and stowage mechanism for terminal keyboard and display panel

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JPS57191436A (en) * 1981-05-19 1982-11-25 Automob Antipollut & Saf Res Center Air-fuel ratio control device
US4785564A (en) * 1982-12-20 1988-11-22 Motorola Inc. Electronic notepad
US4949079A (en) * 1985-04-19 1990-08-14 Hugh Loebner Brightpen/pad graphic device for computer inputs and the like
US4839837A (en) * 1986-06-04 1989-06-13 Chang Bo E Three layered laptop computer
JPS6343223U (fr) * 1986-09-04 1988-03-23
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US4830328A (en) * 1987-04-24 1989-05-16 Honeywell Inc. Portable computer system and stand for use therewith
US4851812A (en) * 1988-06-07 1989-07-25 Basics Corporation Portable data system
US4978949A (en) * 1989-03-06 1990-12-18 Dynabook Technologies Corporation Locking mechanism and support legs for removable display assembly

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Publication number Priority date Publication date Assignee Title
EP0149762A1 (fr) * 1983-11-30 1985-07-31 International Standard Electric Corporation Terminal de bureau
US4718740A (en) * 1986-10-28 1988-01-12 Allied Corporation Housing and stowage mechanism for terminal keyboard and display panel

Non-Patent Citations (1)

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Title
See also references of WO9117493A1 *

Also Published As

Publication number Publication date
EP0534976A1 (fr) 1993-04-07
WO1991017493A1 (fr) 1991-11-14
AU7243691A (en) 1991-11-27
JPH05508490A (ja) 1993-11-25

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