WO1999030271A1 - Computer control apparatus - Google Patents

Computer control apparatus Download PDF

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Publication number
WO1999030271A1
WO1999030271A1 PCT/NL1997/000666 NL9700666W WO9930271A1 WO 1999030271 A1 WO1999030271 A1 WO 1999030271A1 NL 9700666 W NL9700666 W NL 9700666W WO 9930271 A1 WO9930271 A1 WO 9930271A1
Authority
WO
WIPO (PCT)
Prior art keywords
spherical body
person
control apparatus
computer control
output signal
Prior art date
Application number
PCT/NL1997/000666
Other languages
French (fr)
Inventor
Ingrid Pelt
Original Assignee
LEGUÉ, Raymond, Pierre
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 LEGUÉ, Raymond, Pierre filed Critical LEGUÉ, Raymond, Pierre
Priority to AU54173/98A priority Critical patent/AU5417398A/en
Priority to PCT/NL1997/000666 priority patent/WO1999030271A1/en
Publication of WO1999030271A1 publication Critical patent/WO1999030271A1/en

Links

Classifications

    • 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
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0334—Foot operated pointing devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/01—Indexing scheme relating to G06F3/01
    • G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment

Definitions

  • the invention relates to a computer control apparatus in accordance with the preamble of claim 1.
  • a computer control apparatus of the above-mentioned type is known in practice.
  • the known apparatus is designed to be placed on a work surface next to a monitor which is connected to a computer, the spherical body being designed to be rotated by the fingers and/or palm of a hand in order to supply a corresponding output signal to a computer which is connected to the control apparatus.
  • the output signal supplied to the computer by the control apparatus is used in particular to move one or more objects, such as a cursor, over the display screen of the monitor by means of associated programs in the computer.
  • the known computer control apparatus has the drawback that in a number of situations the movement of the one or more objects over the screen is carried out by means of movements of the spherical body which are performed by means of the hand and may be unnatural in such situations.
  • One such situation is, for example, that in which a user of the computer arrangement is navigating his/her way through a virtual world, in which case it is unnatural for the user to "walk" through the virtual world by using his/her hands.
  • a similar situation is that in which the virtual world is displayed on a wall-mounted screen or on screens which are arranged in front of the eyes of the user in a helmet to be worn by the user.
  • the object of the invention is to eliminate the drawbacks of the known control apparatus . This object is achieved according to the invention by means of the computer control apparatus according to claim 1.
  • the user is able to navigate his/her way through, for example, a virtual world in a more natural way by using at least one of his/her feet.
  • the movements which a user makes in order to rotate the spherical body can be observed more easily by spectators and, in the present case, can be clearly related to the consequences of these movements, for example, by movements of one or more objects on a wall-mounted screen.
  • Fig.l shows a first embodiment of a computer control apparatus according to the invention, partially cut away for the purpose of illustration
  • Fig.2 shows a second embodiment of a computer control apparatus according to the invention
  • Fig 3 shows a third embodiment of a computer control apparatus according to the invention.
  • Fig.4 shows a fourth embodiment of a computer control apparatus according to the invention.
  • the computer control apparatus shown in Fig. 1 comprises a housing 10, preferably with a substantially flat upper wall or side 11 which is sufficiently strong to allow a person 12 to stand on it.
  • the housing 10 On the upper side 11, the housing 10 has an opening 13, through which an upper part of a spherical body 14 projects upwards.
  • the spherical body 14 may be solid or hollow, and is at any rate sufficiently strong to allow the person 12 to stand on it.
  • the spherical body 14 is supported on support means which allow rotation of the spherical body 14 in every direction and which may be designed in various ways.
  • the support means are indicated by way of illustration by means of balls 15, which themselves may in turn be supported by roller means (not shown) inside the housing 10.
  • sensor means which are indicated diagrammatically in Fig. 1 by means of electromechanical transducers I ⁇ and an electronic circuit 17 which is connected thereto.
  • the electronic circuit 17 can be connected to a computer (not shown) via a cable 18.
  • the transducers 17 supply signals which are dependent on the rotation to the circuit 17, which supplies a corresponding output signal (or a plurality of output signals) to the computer via the cable 18.
  • the computer is able to follow the rotation of the spherical body 14 and a program running inside the computer can react accordingly, for example by moving one or more objects on a display screen.
  • the spherical body 14 In order to be able to move the spherical body 14 by means of a foot, the spherical body 14 has a diameter of at least 20 cm. Preferably, however, the spherical body 14 has a greater diameter, so that a person 12 can stand on it with both feet and can perform a walking motion thereon. If a suitable computer program and display means are used, the person 12 standing on the spherical body 14 can then navigate his/her way through a virtual world in a relatively natural manner.
  • brake means are preferably arranged against the spherical body
  • a friction member 19 which is arranged on a support structure 20.
  • the friction member 19 is, for example, a piece of rubber and the support structure 20 is preferably suitable for pushing the friction member to a greater or lesser extent against the spherical body 14 , in order in this way to adjust the frictional force exerted by the friction member 19.
  • the frictional force can be made uniform for persons 12 of different weights. Since it can be difficult for the person 12 standing on the spherical body 14 to keep his/her balance, support members, such as the poles 21, may be attached to the housing 10, and the person 12 can hold onto these support members.
  • support members such as the poles 21, may be attached to the housing 10, and the person 12 can hold onto these support members.
  • These means may comprise a belt or harness 22 to be worn by the person 12 and rigid or flexible means, such as cords 23, which are attached to the belt or harness and are also attached to a stationary point (not shown) above the person 12.
  • Walking on the spherical body 14 can be facilitated by producing the body 14, or at least an outer layer thereof, from elastic material in such a manner that when the person 12 stands on it the upper side of the body 14 is flattened suitably.
  • the embodiment of the computer control apparatus as shown in Fig. 2 differs from the embodiment of Fig. 1 in that in the embodiment of Fig. 2 the holding poles 21 are connected to one another by means of an optionally bent intermediate bar 24, and in that a seat structure 25 with a saddle 26 is attached to the housing 10.
  • the seat structure 25 has adjustment means 27 for adjusting the height of the saddle 26.
  • FIG. 3 differs from the embodiments of Figs. 1 and 2 in that the person 12 is supported by a support structure, such as the strap structure 28, which is suspended, for example by means of cords 29 from stationary points (not shown) and parts 30 of which can be placed beneath the armpits of the person 12.
  • a support structure such as the strap structure 28, which is suspended, for example by means of cords 29 from stationary points (not shown) and parts 30 of which can be placed beneath the armpits of the person 12.
  • a seat structure 32 is attached to the housing 10, the seat structure having a saddle 33 on which the person 12 can sit and having side arms 34 on which the person 12 can support him/herself by means of his/her own arms or which the person 12 can hold onto with his/her hands.
  • This seat structure 32 preferably also has means 35 for adjusting the height of the saddle 33 and, in this case, the side arms 34.
  • the support structures 21, 24, 28 and 32 may be provided with electrical switch means (not shown) which can be operated by the person 12 standing on the spherical body 14 by means of at least one hand and which may also be connected, for example via the circuit 17 and the cable 18, to the computer.
  • electrical switch means not shown
  • the person 12 has extra means available for supplying control signals to the computer in order to allow the computer program functioning to perform one or more defined actions depending on the actuation of the switch means.
  • sensor means are provided which detect a vertical force exerted by the spherical body 14 on the support means and which supply the computer with an output signal which is dependent on this force, via an electronic circuit, such as the circuit 17.
  • the sensor means may be arranged in one of the locations of the support members 15, such as 15a.
  • the output signal can change simultaneously with the vertical force or only if the vertical force passes above or below a defined threshold, in particular if the ball causes a vertical acceleration which is above a specific threshold.
  • This feature can be used to supply a switch signal for controlling the computer, for example if a game candidate standing on the spherical body performs a sufficiently strong jump.
  • the computer control apparatus is suitable for various applications, in which it is possible for the user to perform and feel a walking motion in a reasonably natural manner in order in so doing to allow corresponding actions to be performed by the computer program functioning in a reasonably natural manner.
  • the apparatus can be used by a game candidate, in which case the spectators can observe a clear relationship between rotational movements of the spherical body 14 performed by the candidate and events caused by the program in reaction to these movements.
  • the said extra switch means which can be actuated manually by the user 12 can be used, for example, by designers of buildings or interiors and by game candidates in order to place or move objects, which may be virtual objects or mathematical symbols (lines, circles, etc.) in a virtual world.

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)
  • User Interface Of Digital Computer (AREA)

Abstract

Computer control apparatus with a spherical control body (14) which is suitable for supporting a person (12) and, in so doing, can be rotated by the person (12), sensor means (16, 17) sensing a rotation of the spherical body (14) and supplying a corresponding output signal to a computer. Brake means (19, 20) are provided in order to counteract the rotation of the spherical body (14), so that the person (12) performing a walking movement on the spherical body (14) is provided with a feeling which is similar to that experienced when walking normally on stationary ground.

Description

Short title: Computer control apparatus.
The invention relates to a computer control apparatus in accordance with the preamble of claim 1.
A computer control apparatus of the above-mentioned type is known in practice. The known apparatus is designed to be placed on a work surface next to a monitor which is connected to a computer, the spherical body being designed to be rotated by the fingers and/or palm of a hand in order to supply a corresponding output signal to a computer which is connected to the control apparatus. The output signal supplied to the computer by the control apparatus is used in particular to move one or more objects, such as a cursor, over the display screen of the monitor by means of associated programs in the computer.
The known computer control apparatus has the drawback that in a number of situations the movement of the one or more objects over the screen is carried out by means of movements of the spherical body which are performed by means of the hand and may be unnatural in such situations. One such situation is, for example, that in which a user of the computer arrangement is navigating his/her way through a virtual world, in which case it is unnatural for the user to "walk" through the virtual world by using his/her hands. A similar situation is that in which the virtual world is displayed on a wall-mounted screen or on screens which are arranged in front of the eyes of the user in a helmet to be worn by the user. The unnaturalness of this situation primarily stems from the fact that the coordination ability of a man when walking has no relation to movements performed by means of a hand. An additional problem is that the speed at which the user "walks" through the virtual world and the turns which he/she makes in the virtual world are much quicker or more abrupt, respectively, than is the case in reality. The quick and abrupt movements in the virtual world can easily occur accidentally, because the- fingers are much more mobile than the legs of the person. Another drawback of the known control apparatus is that it is not very suitable for use by a candidate in a game with spectators .
The object of the invention is to eliminate the drawbacks of the known control apparatus . This object is achieved according to the invention by means of the computer control apparatus according to claim 1.
As a result, the user is able to navigate his/her way through, for example, a virtual world in a more natural way by using at least one of his/her feet. Furthermore, the movements which a user makes in order to rotate the spherical body can be observed more easily by spectators and, in the present case, can be clearly related to the consequences of these movements, for example, by movements of one or more objects on a wall-mounted screen.
These and other characteristics and advantages of the invention will become clear from the explanation given below with reference to the drawings, in which:
Fig.l shows a first embodiment of a computer control apparatus according to the invention, partially cut away for the purpose of illustration;
Fig.2 shows a second embodiment of a computer control apparatus according to the invention;
Fig 3 shows a third embodiment of a computer control apparatus according to the invention; and
Fig.4 shows a fourth embodiment of a computer control apparatus according to the invention.
The computer control apparatus shown in Fig. 1 comprises a housing 10, preferably with a substantially flat upper wall or side 11 which is sufficiently strong to allow a person 12 to stand on it. On the upper side 11, the housing 10 has an opening 13, through which an upper part of a spherical body 14 projects upwards. The spherical body 14 may be solid or hollow, and is at any rate sufficiently strong to allow the person 12 to stand on it.
The spherical body 14 is supported on support means which allow rotation of the spherical body 14 in every direction and which may be designed in various ways. In Fig. 1, the support means are indicated by way of illustration by means of balls 15, which themselves may in turn be supported by roller means (not shown) inside the housing 10. In the housing 10 there are arranged sensor means which are indicated diagrammatically in Fig. 1 by means of electromechanical transducers Iβ and an electronic circuit 17 which is connected thereto. The electronic circuit 17 can be connected to a computer (not shown) via a cable 18.
If the person 12 standing on the spherical body 14 rotates the spherical body 14 by means of at least one foot, the transducers 17 supply signals which are dependent on the rotation to the circuit 17, which supplies a corresponding output signal (or a plurality of output signals) to the computer via the cable 18. As a result, the computer is able to follow the rotation of the spherical body 14 and a program running inside the computer can react accordingly, for example by moving one or more objects on a display screen.
In order to be able to move the spherical body 14 by means of a foot, the spherical body 14 has a diameter of at least 20 cm. Preferably, however, the spherical body 14 has a greater diameter, so that a person 12 can stand on it with both feet and can perform a walking motion thereon. If a suitable computer program and display means are used, the person 12 standing on the spherical body 14 can then navigate his/her way through a virtual world in a relatively natural manner.
Preferably, in order to make the walking motion of the person 12 on the spherical body 14 more natural , brake means are preferably arranged against the spherical body
14, which brake means are represented in Fig. 1 by a friction member 19, which is arranged on a support structure 20. The friction member 19 is, for example, a piece of rubber and the support structure 20 is preferably suitable for pushing the friction member to a greater or lesser extent against the spherical body 14 , in order in this way to adjust the frictional force exerted by the friction member 19. As a result, the frictional force can be made uniform for persons 12 of different weights. Since it can be difficult for the person 12 standing on the spherical body 14 to keep his/her balance, support members, such as the poles 21, may be attached to the housing 10, and the person 12 can hold onto these support members. In addition, or as an alternative, it is possible to provide means which prevent the person 12 from falling. These means may comprise a belt or harness 22 to be worn by the person 12 and rigid or flexible means, such as cords 23, which are attached to the belt or harness and are also attached to a stationary point (not shown) above the person 12.
Walking on the spherical body 14 can be facilitated by producing the body 14, or at least an outer layer thereof, from elastic material in such a manner that when the person 12 stands on it the upper side of the body 14 is flattened suitably.
The embodiment of the computer control apparatus as shown in Fig. 2 differs from the embodiment of Fig. 1 in that in the embodiment of Fig. 2 the holding poles 21 are connected to one another by means of an optionally bent intermediate bar 24, and in that a seat structure 25 with a saddle 26 is attached to the housing 10. Preferably, the seat structure 25 has adjustment means 27 for adjusting the height of the saddle 26. As a result, the person 12 sitting on the saddle 26 can rotate the spherical body 14 relatively easily.
The embodiment shown in Fig. 3 differs from the embodiments of Figs. 1 and 2 in that the person 12 is supported by a support structure, such as the strap structure 28, which is suspended, for example by means of cords 29 from stationary points (not shown) and parts 30 of which can be placed beneath the armpits of the person 12.
The embodiment of Fig. 4 differs from the preceding embodiment in that a seat structure 32 is attached to the housing 10, the seat structure having a saddle 33 on which the person 12 can sit and having side arms 34 on which the person 12 can support him/herself by means of his/her own arms or which the person 12 can hold onto with his/her hands. This seat structure 32 preferably also has means 35 for adjusting the height of the saddle 33 and, in this case, the side arms 34.
The support structures 21, 24, 28 and 32 may be provided with electrical switch means (not shown) which can be operated by the person 12 standing on the spherical body 14 by means of at least one hand and which may also be connected, for example via the circuit 17 and the cable 18, to the computer. As a result, the person 12 has extra means available for supplying control signals to the computer in order to allow the computer program functioning to perform one or more defined actions depending on the actuation of the switch means.
Preferably, sensor means are provided which detect a vertical force exerted by the spherical body 14 on the support means and which supply the computer with an output signal which is dependent on this force, via an electronic circuit, such as the circuit 17. The sensor means may be arranged in one of the locations of the support members 15, such as 15a. Depending on the application for which the control apparatus is used, the output signal can change simultaneously with the vertical force or only if the vertical force passes above or below a defined threshold, in particular if the ball causes a vertical acceleration which is above a specific threshold. This feature can be used to supply a switch signal for controlling the computer, for example if a game candidate standing on the spherical body performs a sufficiently strong jump.
The computer control apparatus according to the invention is suitable for various applications, in which it is possible for the user to perform and feel a walking motion in a reasonably natural manner in order in so doing to allow corresponding actions to be performed by the computer program functioning in a reasonably natural manner. Furthermore, the apparatus can be used by a game candidate, in which case the spectators can observe a clear relationship between rotational movements of the spherical body 14 performed by the candidate and events caused by the program in reaction to these movements. The said extra switch means which can be actuated manually by the user 12 can be used, for example, by designers of buildings or interiors and by game candidates in order to place or move objects, which may be virtual objects or mathematical symbols (lines, circles, etc.) in a virtual world.

Claims

1. Computer control apparatus, comprising a housing (10) with an upper wall (11) with an opening (13) , a spherical body (14) , first support means (15) , which are arranged in the housing (10) and which are suitable for supporting the spherical body (14) in such a manner that part of the spherical body (14) projects outside the housing (10) through the opening (13) and the spherical body (14) can rotate, and sensor means (16, 17) which sense a rotation of the spherical body (14) and which supply an output signal which corresponds to the rotation to a computer, characterized in that the spherical body (14) has a diameter which is greater than 20 centimeters, the spherical body (14) and the first support means (15) are suitable for supporting a person (12) on the spherical body (14) , and the surface of the spherical body (14) is suitable to be rotated by a foot of the person (12) .
2. Computer control apparatus according to claim 1, characterized in that the spherical body (14) has a diameter which is suitable for allowing the person (12) to stand on it on both his/her feet.
3. Computer control device according to claim 1 or 2 , characterized by resistance means (19, 20) which act on the spherical body (14) in order to provide resistance to rotation of the spherical body (14) .
4. Computer control apparatus according to one of the preceding claims, characterized in that the upper wall (11) has, next to the opening (13) , a substantially flat outer side which is suitable for the person (12) to stand on.
5. Computer control apparatus according to one of the preceding claims, characterized by suspension means (22,
23; 28, 29) which are arranged above the upper wall (11) of the housing (10) and which are suitable for supporting the person (12) standing on the spherical body (14) .
6. Computer control apparatus according to claim 5 , characterized in that the ΓÇó support means comprise securing means which are suitable for supporting the person (12) standing on the spherical body (14) .
7. Computer control apparatus according to claim 6 , characterized in that the securing means comprise belt means (22) for belting in the person (12) and connection means (23) which are arranged between the belt means and a fastening point above the person (12) .
8. Computer control apparatus according to claim 6, characterized in that the securing means comprise a structure (28) which at least partially encloses, and is able to support, the person (12) standing on the spherical body (14) , and connection means (29) which are arranged between the structure (28) and a fastening point above the person (12) .
9. Computer control apparatus according to claim 8 , characterized in that electrical switch means, which can be actuated by the hand of the person (12) and supply an output signal dependant on their actuation, are arranged on the structure (28) .
10. Computer control apparatus according to one of the preceding claims, characterized by second support means (21, 24, 27, 32), which are arranged immovably with respect to the housing (10) and which are suitable for being held by the hands of the person (12) standing on the spherical body (14) .
11. Computer control apparatus according to claim 10, characterized in that the second support means comprise a saddle (26, 33) , which is suitable for the person (12) to sit on and for allowing the person (12) to rotate the spherical body (14) using at least one foot.
12. Computer control apparatus according to claim 10, characterized in that electrical switch means, which can be actuated by the hand of the person (12) and which supply an output signal dependant on their actuation, are arranged on the second support means (21, 24, 27, 32).
13. Computer control apparatus according to one of the preceding claims, characterized in that the support means comprise a pressure sensor (15a) , which is connected to an electric circuit (17) for supplying an output signal which is dependant on a vertical force exerted by the spherical" body (14) or the pressure sensor (15a) .
14. Computer control apparatus according to claim 13, characterized in that the output signal may have two levels, of which one level is generated if the spherical body (14) exerts a vertical impact load above a specific threshold on the pressure sensor (15a) and of which otherwise the other level is generated.
15. Computer control apparatus according to a preceding claim, characterized in that the spherical body (14) can be elastically compressed in such a manner that its upper side becomes flattened when a person (12) stands on it.
PCT/NL1997/000666 1997-12-05 1997-12-05 Computer control apparatus WO1999030271A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU54173/98A AU5417398A (en) 1997-12-05 1997-12-05 Computer control apparatus
PCT/NL1997/000666 WO1999030271A1 (en) 1997-12-05 1997-12-05 Computer control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL1997/000666 WO1999030271A1 (en) 1997-12-05 1997-12-05 Computer control apparatus

Publications (1)

Publication Number Publication Date
WO1999030271A1 true WO1999030271A1 (en) 1999-06-17

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ID=19866221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1997/000666 WO1999030271A1 (en) 1997-12-05 1997-12-05 Computer control apparatus

Country Status (2)

Country Link
AU (1) AU5417398A (en)
WO (1) WO1999030271A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077604A2 (en) * 1999-06-10 2000-12-21 Rainer Beuthner Rehabilitation device
NL1027286C2 (en) * 2004-10-18 2006-04-19 Commanditaire Vennootschap Bin Device for controlling a computer.
US9914003B2 (en) 2013-03-05 2018-03-13 Alterg, Inc. Monocolumn unweighting systems
US10265565B2 (en) 2013-03-14 2019-04-23 Alterg, Inc. Support frame and related unweighting system
US10342461B2 (en) 2007-10-15 2019-07-09 Alterg, Inc. Method of gait evaluation and training with differential pressure system
US10493309B2 (en) 2013-03-14 2019-12-03 Alterg, Inc. Cantilevered unweighting systems
US11806564B2 (en) 2013-03-14 2023-11-07 Alterg, Inc. Method of gait evaluation and training with differential pressure system
US11957954B2 (en) 2017-10-18 2024-04-16 Alterg, Inc. Gait data collection and analytics system and methods for operating unweighting training systems

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DE3440218A1 (en) * 1984-11-03 1986-05-07 Michael 8340 Pfarrkirchen Eckleder Walking aid
US4861021A (en) * 1987-11-18 1989-08-29 Safe/Stress, Inc. Safety harness on/off switch assembly for treadmills
DE4107085A1 (en) * 1990-03-07 1991-10-02 Alps Electric Co Ltd Co-ordinate input unit for CRT screen - uses integrated switch system for resolution change and selection purposes
DE4319795A1 (en) * 1993-06-15 1994-01-13 Jochen Dr Guelker Computer pointing device with tactile feedback response - uses resistance change by electromagnetic attraction to mouse pad and button reaction
DE4445861A1 (en) * 1994-12-22 1996-06-27 Johannes Lemburg Electronic computer foot input system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440218A1 (en) * 1984-11-03 1986-05-07 Michael 8340 Pfarrkirchen Eckleder Walking aid
US4861021A (en) * 1987-11-18 1989-08-29 Safe/Stress, Inc. Safety harness on/off switch assembly for treadmills
DE4107085A1 (en) * 1990-03-07 1991-10-02 Alps Electric Co Ltd Co-ordinate input unit for CRT screen - uses integrated switch system for resolution change and selection purposes
DE4319795A1 (en) * 1993-06-15 1994-01-13 Jochen Dr Guelker Computer pointing device with tactile feedback response - uses resistance change by electromagnetic attraction to mouse pad and button reaction
DE4445861A1 (en) * 1994-12-22 1996-06-27 Johannes Lemburg Electronic computer foot input system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077604A2 (en) * 1999-06-10 2000-12-21 Rainer Beuthner Rehabilitation device
WO2000077604A3 (en) * 1999-06-10 2001-08-02 Rainer Beuthner Rehabilitation device
NL1027286C2 (en) * 2004-10-18 2006-04-19 Commanditaire Vennootschap Bin Device for controlling a computer.
WO2006043806A1 (en) * 2004-10-18 2006-04-27 De Commanditaire Vennootschap Bin 2004 Device for controlling a computer
US10342461B2 (en) 2007-10-15 2019-07-09 Alterg, Inc. Method of gait evaluation and training with differential pressure system
US9914003B2 (en) 2013-03-05 2018-03-13 Alterg, Inc. Monocolumn unweighting systems
US10265565B2 (en) 2013-03-14 2019-04-23 Alterg, Inc. Support frame and related unweighting system
US10493309B2 (en) 2013-03-14 2019-12-03 Alterg, Inc. Cantilevered unweighting systems
US11806564B2 (en) 2013-03-14 2023-11-07 Alterg, Inc. Method of gait evaluation and training with differential pressure system
US11957954B2 (en) 2017-10-18 2024-04-16 Alterg, Inc. Gait data collection and analytics system and methods for operating unweighting training systems

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Publication number Publication date
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