Keyboard with a touchpad layer on keys

• US 7,659,887 B2
• Filed: 10/20/2005
• Issued: 02/09/2010
• Est. Priority Date: 10/20/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Larsen, Glen C, Bathiche, Steven N
• Primary Examiner(s): Nguyen; Chanh
• Assistant Examiner(s): Mistry; Ram A
• Application Number:
  US11/254,355
• Publication Number:
  US 20070091070A1
• Time in Patent Office: 1,573 Days
• Field of Search: 345156-172, 463 34- 42, 341 21- 23
• US Class Current: 345/170
• CPC Class Codes: G06F 3/0213 Arrangements providing an integrated pointing device in a keyboard, e.g. trackball, mini-joystick for pointing devices integrated in a laptop computer G06F1/169; joysticks G05G9/047; constructional details of pointing devices G06F3/033
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: H01H 13/70 having a plurality of operating members associated with different sets of contacts, e.g. keyboard mounting together a plurality of independent switches H02B
• CPC Class Codes: H01H 2003/0293 with an integrated touch switch
• CPC Class Codes: H01H 2217/032 Feedback about selected symbol, e.g. display
• CPC Class Codes: H01H 2239/006 Containing a capacitive switch or usable as such
• CPC Class Codes: H01H 2239/03 Avoiding erroneous switching
• CPC Class Codes: H01H 2239/074 Actuation by finger touch
• CPC Class Codes: H01H 2300/024 Avoid unwanted operation

Abstract

Various embodiments are disclosed relating to a keyboard with integrated key and touchpad. In an example embodiment, a keyboard is provided that includes a plurality of keys, each key being capable of being pressed to select one or more keyboard inputs. The keyboard also includes a micro touchpad provided on an upper surface of a first key of the keys to allow pointer control by moving a finger or other object across a top surface of the micro touchpad.

Claims

1. A keyboard comprising:

a plurality of keys, each key capable of being pressed to select one or more keyboard inputs;

a micro touchpad provided on an upper surface of a first key of said keys to allow pointer or other computer control by moving a finger or other object across a top surface of the micro touchpad; and

a processor for controlling key input of the first key and touch input of the micro touchpad, the processor allowing the key input of the first key and temporarily buffering the touch input of the micro touchpad for a period of time after the first key is pressed, and the processor temporarily buffering the key input of the first key for a predetermined period of time after the touch input is detected via the micro touchpad of the first key and the first key has not been pressed, while temporarily buffering the key input of the first key due to the touch input being detected, the processor further attempts to confirm whether the key input should be disabled, if the processor does not confirm that the key input should be disabled, the processor disables the touch input and provides the buffered key input to a host processor, the host processor being different from the processor, and if the processor confirms that the key input should be disabled, the processor discards the buffered key input.

2. The keyboard of claim 1 wherein the first key is capable of traveling a distance of at least 1 mm between a pressed position and a not pressed position.

3. The keyboard of claim 1 and further comprising a keyboard controller coupled to the plurality of keys and the micro touchpad.

4. The keyboard of claim 1 and further comprising a micro touchpad provided on an upper surface of a second key of said keys to allow additional computer control by moving a finger or other object across a top surface of the micro touchpad of the second key.

5. The keyboard of claim 1 wherein the first comprises one of a G key, an H key, a J key, a F key or a space bar key.

6. The keyboard of claim 1 and further comprising a micro touchpad provided on an upper surface of a second key of said keys to allow scrolling control by moving a finger or other object across a top surface of the micro touchpad of the second key.

7. The keyboard of claim 6 wherein the first key comprises a first one of an F key, a G key, an H key, a J key or a space key and the second key comprises a second of the F key, the G key, the H key, the J key or the space bar key.

8. The keyboard of claim 6 wherein the first key comprises an H key or a J key, and the second key comprises an F key or a G key.

9. The keyboard of claim 1 and further comprising a flexible conductor coupled to the micro touchpad that is adapted to flex when the first key travel between a pressed position and a not pressed position.

10. The keyboard of claim 1 wherein the first key comprises an insulative key cover provided on at least one of an upper surface of the first key, a side surface of the first key or at least a portion of a lower surface of the first key.

11. The keyboard of claim 1, further comprising:

a macro touchpad including a touch sensor provided on an upper surface of each of the plurality of keys, the macro touchpad being adapted to allow at least large-scale pointer or other computer control by moving a finger or other object across a top surface of one or more of the plurality of keys.

12. The keyboard of claim 11, wherein:

each of the touch sensors provided on each of the plurality of keys comprises a respective micro touchpad, and

a resolution of the micro touchpad of the first key is greater than a resolution of the micro touchpads in one or more of the plurality of keys used for the macro touchpad.

13. A method of selecting touchpad input and key input, the method comprising:

determining by a processor, if a key has been pressed;

determining, by the processor, if touch activity with respect to a touchpad on an upper surface of the key is detected;

if the key has been pressed, then enabling the key input and disabling the touchpad input, with respect to the touchpad, for a period of time after the key has been pressed;

otherwise, if the key has been determined to not be pressed, then;

enabling, by the processor, the touchpad input; and

if the touch activity with respect to the touchpad is detected by the processor and the key has been determined, by the processor, not to be pressed, then performing;

buffering, by the processor, the key input temporarily;

while buffering the key input temporarily as a result of detecting the touch activity and determining that the key has not been pressed, the processor attempting to confirm that the key input should be disabled;

if the key input is not confirmed as being disabled, the processor providing the temporarily buffered key input to a host processor different from the processor; and

if the key input is confirmed as being disabled, discarding the temporarily buffered key input.

14. The method of claim 13, wherein

a resolution of the touchpad on the upper surface of the key is greater than a resolution of a touchpad in at least one other key.