Apparatuses, systems, and methods for representing user interactions with real-world input devices in a virtual space

Patent metadata

Field	Value
Publication number	US-10394342-B2
Application number	US-201715717725-A
Country	US
Kind code	B2
Filing date	Sep 27, 2017
Priority date	Sep 27, 2017
Publication date	Aug 27, 2019
Grant date	Aug 27, 2019

Abstract

A key assembly for a keyboard may include a key cap that includes a touch sensor that is communicatively coupled to a control device. When the touch sensor senses a touch event, the touch sensor may send a touch signal to the control device, and when the touch sensor senses an absence of touch, the touch sensor may send a control signal to the control device. The key assembly may further include a switch that is communicatively coupled to the control device and that is movable between a pressed position and an un-pressed position. When the switch is in the pressed position, the switch may send a closed signal to the control device, and when the switch is in the un-pressed position, the switch may send an open signal to the control device. Various other apparatuses, systems, and methods are also disclosed.

First claim

What is claimed is:

1. A key assembly for a keyboard comprising:
a key cap comprising:
a connector; and
a touch sensor that is communicatively coupled to a control device, wherein:
when the touch sensor senses a touch event, the touch sensor sends a touch signal to the control device; and
when the touch sensor senses an absence of touch, the touch sensor sends a control signal to the control device; and

a switch that is communicatively coupled to the control device and that is movable between a pressed position and an un-pressed position, the switch comprising a plunger that is movable between an extended position and a compressed position, wherein:
when the switch is in the pressed position, the plunger is in the compressed position and the switch sends a closed signal to the control device; and
when the switch is in the un-pressed position, the plunger is in the extended position and the switch sends an open signal to the control device;

wherein the control device:
receives, from the switch, a switch signal comprising at least one of:
the closed signal; or
the open signal; and

directs a head-mounted display to present, in a virtual space:
a visual representation of a fingertip; and
a visual representation of the key assembly; and

animates, when the switch signal includes the closed signal, an actuation of the visual representation of the key assembly by the visual representation of the fingertip by animating the visual representation of the fingertip moving the key assembly from the un-pressed position to the pressed position.

2. The key assembly of claim 1 , wherein the touch sensor comprises a capacitive touch sensor.

3. The key assembly of claim 1 , wherein the touch sensor is a resistive touch sensor.

4. The key assembly of claim 1 , wherein
the key cap further comprises
an interface surface that is coupled to the touch sensor.

5. The key assembly of claim 4 , wherein the interface surface defines a concave depression that is adapted to receive a fingertip of a human finger.

6. The key assembly of claim 4 , wherein the touch sensor comprises a sensing portion that at least partially covers the interface surface.

7. A virtual reality interface system comprising:
a head-mounted display;
a control device that is communicatively coupled to the head-mounted display; and
a keyboard comprising at least one key assembly that comprises:
a key cap comprising:
a connector; and
a touch sensor that is communicatively coupled to the control device,

wherein:
when the touch sensor senses a touch event, the touch sensor sends a touch signal to the control device; and
when the touch sensor senses an absence of touch, the touch sensor sends a control signal to the control device; and
a switch that is communicatively coupled to the control device and that is movable between a pressed position and an un-pressed position, the switch comprising a plunger that is movable between an extended position and a compressed position, wherein:
when the switch is in the pressed position, the plunger is in the compressed position and the switch sends a closed signal to the control device; and
when the switch is in the un-pressed position, the plunger is in the extended position and the switch sends an open signal to the control device;

wherein the control device:
receives, from the switch, a switch signal comprising at least one of:
the closed signal; or
the open signal; and

directs a head-mounted display to present, in a virtual space:
a visual representation of a fingertip; and
a visual representation of the key assembly; and

animates, when the switch signal includes the closed signal, an actuation of the visual representation of the key assembly by the visual representation of the fingertip by animating the visual representation of the fingertip moving the key assembly from the un-pressed position to the pressed position.

8. The virtual reality interface system of claim 7 , wherein the touch sensor comprises a capacitive touch sensor.

9. The virtual reality interface system of claim 7 , wherein
the key cap further comprises
an interface surface that is coupled to the touch sensor.

10. The virtual reality interface system of claim 9 , wherein the touch sensor comprises a sensing portion that at least partially covers the interface surface.

11. The virtual reality interface system of claim 9 , wherein the interface surface defines a concave depression that is adapted to receive a fingertip of a human finger.

12. The virtual reality interface system of claim 9 , wherein the control device
receives, from the touch sensor, a touch sensor signal comprising at least one of:
the touch signal; or
the control signal.

13. The virtual reality interface system of claim 12 , wherein
the visual representation of the key assembly is in the pressed position when the switch signal includes the closed signal.

14. The virtual reality interface system of claim 13 , wherein:
the visual representation of the fingertip is in contact with a visual representation of the interface surface of the key cap when the touch sensor signal includes the touch signal; and
the visual representation of the fingertip is disconnected from the visual representation of the key cap when the touch sensor signal includes the control signal.

15. The virtual reality interface system of claim 14 , wherein:
the keyboard comprises at least one additional key assembly that is communicatively coupled to the control device;
the control device receives an additional signal from the additional key assembly; and
at least one of the visual representation of the key assembly and the visual representation of the fingertip is further based on the additional signal.

16. The virtual reality interface system of claim 14 , wherein:
the keyboard further comprises a mounting surface comprising a mounting location;
the switch further comprises a mount that is coupled to the plunger and that is coupled to the mounting surface at the mounting location;
the control device receives data representative of the mounting location; and
the visual representation of the key assembly in the virtual space is further based on the data representative of the mounting location.

17. The virtual reality interface system of claim 14 , wherein:
the keyboard further comprises a physical position indicator; and
the control device determines:
a position of the physical position indicator in a physical space;
a position of the keyboard in the virtual space based on a determination of the position of the physical position indicator in the physical space; and

the visual representation of the key assembly in the virtual space is further based on a determination of the position of the keyboard in the virtual space.

18. A method comprising:
sensing a touch event via a touch sensor included in a key cap that is included in a key assembly of a virtual reality interface system;
determining, while the touch sensor senses the touch event, that a switch included in the key assembly has moved from an un-pressed position to a pressed position; and
directing, while the touch sensor senses the touch event, a head-mounted display included in the virtual reality interface system to present, in a virtual space, a visual representation of the key assembly and a visual representation of a fingertip in contact with a visual representation of an interface surface of the key cap; and
animating an actuation of the visual representation of the key assembly by the visual representa

Assignees

• Facebook Tech Llc

Inventors

• Imm Andrew Harrison
• Chew Grantland Lee Lim

Classifications

• G02B27/0176

  characterised by mechanical features · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/011

  Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00) · CPC title

• G06F3/038

  Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry · CPC title

• H01H2239/006

  Containing a capacitive switch or usable as such · CPC title