System and method for providing a keyboard type interface for a computing device

• US 8,245,158 B1
• Filed: 03/10/2003
• Issued: 08/14/2012
• Est. Priority Date: 03/11/2002
• Status: Active Grant

• Current Assignee: Brad Schrick
• Original Assignee: Brad Schrick
• Inventors: Schrick, Brad
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): BECKER, SHASHI KAMALA
• Application Number:
  US10/385,818
• Time in Patent Office: 3,445 Days
• Field of Search: 345/864, 715/864, 715/710, 715/764, 715/768, 715/780
• US Class Current: 715/864
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1666 Arrangements for reducing the size of the integrated keyboard for transport, e.g. foldable keyboards, keyboards with collapsible keys G06F1/1664 takes precedence
• CPC Class Codes: G06F 3/04895 Guidance during keyboard input operation, e.g. prompting

Abstract

A system and method for providing an interface for an electronic or computing device. In one embodiment, the invention includes a keyboard positioned adjacent to the posterior side of the computing device in such a way that the user can operate the device in an easy and convenient manner, while at the same time maximizing the amount of available display space to the user viewing the anterior side of the device. In this embodiment the user operates the keyboard while it is hidden from view behind the display. The invention also provides several mechanisms that allow the user to become familiar with this approach to operating the device, some of which are applicable to the improvement of standard keyboards for many common purposes and uses. These mechanisms include, but are not limited to, appropriately spaced keys, chorded keyboards, tactile feedback mechanisms, and key indication, selection and verification methods.

Claims

1. A key sensing interface for one of a laptop computer, personal digital assistant, or other electronic device, comprising:

a display located on the laptop computer, personal digital assistant, or other electronic device, and wherein the display is viewable to a user of the device, for use in displaying a document having characters in a regular format;

a keyboard or keypad, which includes a plurality of discrete keys, and wherein the keyboard or keypad is positioned relative to the display so that it can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

a sensing mechanism, which includes a separate sensor associated with each of the plurality of discrete keys, for determining which of the plurality of discrete keys on the keyboard or keypad the user is currently selecting and is about to enter as characters within the document;

a feedback mechanism for communicating feedback to the user, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively denoting, as a succession of interim displayed, ghosted, or other differently formatted characters, a preview of that character indicated by a key or plurality of keys currently selected by the user, including,

while the user is selecting from the plurality of discrete keys to enter characters within the document,

displaying a preview of the character indicated by the current selection of key or plurality of keys, at a current location in the document as displayed on the display, as an interim displayed, ghosted, or other differently formatted character, and without requiring the user to look at the keyboard;

a verification mechanism allowing the user to confirm their key selection; and

a key input mechanism recognizing the confirmation as a valid key stroke or input, wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position switch, and wherein the verification mechanism includes,

while the user is typing in the document,

allowing the user to depress the key or plurality of keys more fully,

from a first non-depressed position to a second partially-depressed position wherein the character is previewed as the interim displayed, ghosted, or other differently formatted character at the current location in the document as displayed on the display, and

then to a third fully-depressed position, wherein that same interim displayed, ghosted, or other differently formatted character is then entered into the current location in the document in its regular format, as the valid key stroke or input.

2. The interface of claim 1 wherein each of the plurality of discrete keys on the keyboard or keypad include as the separate sensor a touch-sensitive portion of the key, and wherein said determining is based either on the user'"'"'s finger pressure on the discrete key to be selected, or on a proximity detection of the user'"'"'s fingers relative to the discrete key.

3. The interface of claim 1 wherein said feedback includes an audible notification to the user of the key to be selected, or another form of audible notification related to that key.

4. The interface of claim 1 wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position key, and wherein said verification mechanism includes one of allowing the user to make a determination by depressing the key more fully from the second partially-depressed position to the third fully-depressed position.

9. The key sensing interface of claim 1 wherein the keyboard or keypad is a chorded keyboard having a reduced number of keys, wherein each character is generated by simultaneously selecting various combinations of keys, and wherein the system determines which combination of keys the user is about to select and displays the character associated with the combination of keys, on the portion of the display, to allow the user to confirm their selection by further depressing or applying additional pressure to the same combination of keys.

19. The interface of claim 1 wherein the interface is used to edit documents, and wherein in the second or partially-depressed position the character is previewed as an interim displayed or ghosted character in a document, but not yet entered into the document, and wherein in the third or fully-depressed position that same displayed character is then entered into that place in the document.

23. The interface of claim 1 wherein the keypad is distributed over two or more faces or sides of the laptop computer, personal digital assistant, or other electronic device, including a number of keys on the front of the device and another number of keys on the rear of the device, which keys can all be accessed when the device is held in the hands of the user.

5. A method of assisting a user to interact with one of a laptop computer, personal digital assistant, or electronic device, comprising the steps of:

displaying a display located on the laptop computer, personal digital assistant, or other electronic device so that the display is viewable to a user of the device, for use in displaying a document having characters in a regular format;

monitoring a keyboard or keypad, wherein the keyboard or keypad includes a plurality of discrete keys, and wherein the keyboard or keypad is positioned relative to the display so that it can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

determining, using a separate sensor associated with each discrete key, which of the plurality of discrete keys on the keyboard or keypad the user is about to select;

communicating feedback to the user, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively denoting, as a succession of interim displayed, ghosted, or other differently formatted characters, a preview of a character indicated by a key or plurality of keys currently selected by the user, including displaying the character indicated by the key or plurality of keys within a current location in the document as displayed on the display, and without requiring the user to look at the keyboard;

allowing the user to confirm their key selection and recognizing the confirmation as a valid key stroke or input,

wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position switch, and

wherein the step of allowing the user to confirm their key selection includes, while the user is typing in the document

allowing the user to depress the key or plurality of keys more fully from a first non-depressed position to a second partially-depressed position wherein the character is previewed as the interim displayed, ghosted, or other differently formatted character within the current location in the document as displayed on the display, and

then to a third fully-depressed position, wherein that same interim displayed, ghosted, or other differently formatted character is then entered into the current location in the document in its regular format, as the valid key stroke or input wherein that same displayed character is then entered into the current location in the document as the valid key stroke or input.

6. The method of claim 5 wherein each of the plurality of discrete keys on the keyboard or keypad include as the separate sensor a touch-sensitive portion of the key, and wherein said determining is based either on the user'"'"'s finger pressure on the discrete key to be selected, or on a proximity detection of the user'"'"'s fingers relative to the discrete key.

7. The method of claim 5 wherein said feedback includes an audible notification to the user of the key to be selected, or another form of audible notification related to that key.

8. The method of claim 5 wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position key, and wherein said verification mechanism includes one of allowing the user to make a determination by depressing the key more fully from the second partially-depressed position to the third fully-depressed position.

10. The method of claim 5 wherein the keyboard or keypad is a chorded keyboard having a reduced number of keys, wherein each character is generated by simultaneously selecting various combinations of keys, and wherein the system determines which combination of keys the user is about to select and displays the character associated with the combination of keys, on the portion of the display, to allow the user to confirm their selection by further depressing or applying additional pressure to the same combination of keys.

20. The method of claim 5 wherein method is used to edit documents, and wherein in the second or partially-depressed position the character is previewed as an interim displayed or ghosted character in a document, but not yet entered into the document, and wherein in the third or fully-depressed position that same displayed character is then entered into that place in the document.

24. The method of claim 5 wherein the keypad is distributed over two or more faces or sides of the laptop computer, personal digital assistant, or other electronic device, including a number of keys on the front of the device and another number of keys on the rear of the device, which keys can all be accessed when the device is held in the hands of the user.

11. A system for providing an electronic device with a keypad and a displayed key feedback, comprising:

an electronic device including a display viewable to a user of the electronic device, for use in displaying a document having characters in a regular format;

a keypad positioned relative to the display and including a plurality of discrete keys so that it can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

a sensor for determining which key or plurality of keys on the keypad the user is currently selecting and is about to enter as characters within the document, including a separate sensor associated with each discrete key;

a feedback logic for communicating a feedback, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively denoting, as a succession of interim displayed, ghosted, or other differently formatted characters, a preview of that character indicated by a key or plurality of keys currently selected by the user, including displaying that character associated with the key or plurality of keys within a current location in the document as displayed on the display; and

a verification logic for receiving a confirmation from the user as to the key displayed on the portion of the display, and recognizing the confirmation as a valid key input, while the user is typing in the document,

wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position switch, and wherein the verification mechanism includes

allowing the user to depress the key or plurality of keys more fully

from a first non-depressed position to a second partially-depressed position wherein a character is previewed as the interim displayed, ghosted, or other differently formatted character within the current location in the document as displayed on the display and

then to a third fully-depressed position wherein that same interim displayed, ghosted, or other differently formatted character is then entered into the current location in the document as the valid key input.

12. The system of claim 11 wherein the electronic device is a computer and the keypad is a computer keyboard located all or partially on the back of the computer.

13. The system of claim 11 wherein each of the plurality of keys on the keypad includes a touch sensitive surface, and wherein each of the plurality of keys can also be depressed, and wherein the system uses the touch sensitive surface to determine which key on the keypad the user is about to select and provide the feedback, and then receives confirmation from the user when the key is depressed.

14. The system of claim 11 wherein the keypad is a chorded keyboard having a reduced number of keys, wherein each character is generated by simultaneously selecting various combinations of keys, and wherein the system determines which combination of keys the user is about to select and displays an image associated with the combination of keys, on the portion of the display, to allow the user to confirm their selection by further depressing or applying additional pressure to the same combination of keys.

15. A method for providing an electronic device with a keypad and a displayed key feedback, comprising the steps of:

displaying on an electronic device a display viewable to a user of the electronic device, for use in displaying a document having characters in a regular format;

receiving user input from a keypad positioned relative to the display and including a plurality of discrete keys so that it can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

determining, using a separate sensor associated with each discrete key, which key or plurality of keys on the keypad the user is currently selecting and is about to enter as characters within the document;

communicating a feedback, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively denoting, as a succession of interim displayed, ghosted, or other differently formatted characters, a preview of that character indicated by a key or plurality of keys currently selected by the user, including displaying that character associated with the key or plurality of keys within a current location in the document as displayed on the display; and

receiving a confirmation from the user as to the key displayed on the portion of the display, and recognizing the confirmation as a valid key input, while the user is typing in the document,

wherein each of the plurality of discrete keys on the keyboard or keypad includes as the separate sensor a multi-position switch, and wherein the verification mechanism includes

allowing the user to depress the key or plurality of keys more fully

from a first non-depressed position to a second partially-depressed position wherein a character is previewed as the interim displayed, ghosted, or other differently formatted character within the current location in the document as displayed on the display, and

then to a third fully-depressed position wherein that same interim displayed, ghosted, or other differently formatted character is then entered into the current location in the document as the valid key input.

16. The method of claim 15 wherein the electronic device is a computer and the keypad is a computer keyboard located all or partially on the back of the computer.

17. The method of claim 15 wherein each of the plurality of keys on the keypad includes a touch sensitive surface, and wherein each of the plurality of keys can also be depressed, and wherein the system uses the touch sensitive surface to determine which key on the keypad the user is about to select and provide the feedback, and then receives confirmation from the user when the key is depressed.

18. The method of claim 15 wherein the keypad is a chorded keyboard having a reduced number of keys, wherein each character is generated by simultaneously selecting various combinations of keys, and wherein the system determines which combination of keys the user is about to select and displays an image associated with the combination of keys, on the portion of the display, to allow the user to confirm their selection by further depressing or applying additional pressure to the same combination of keys.

21. A system for providing an electronic device with a keypad and a displayed key feedback, comprising:

an electronic device which includes a display viewable to a user of the electronic device for use in displaying and editing a document having characters in a regular format;

a keypad positioned relative to the display and including a plurality of discrete keys so that the keypad can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

a touch sensitive sensor for determining which key or plurality of keys on the keypad the user is currently selecting and is about to enter as characters within the document, including a separate sensor associated with each discrete key;

a feedback logic for communicating feedback about a character indicated by the key or plurality of keys selected or about to be selected, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively displaying the character as a succession of interim displayed, ghosted or other differently formatted character within a current location in the displayed document, but not yet entered into the document; and

a verification logic for receiving a confirmation from the user as to the interim displayed or ghosted character within the current location in the displayed document, including

while the user is selecting from the plurality of discrete keys to enter characters within the document,

allowing the user to depress or further select the key or plurality of keys,

displaying a preview of the character indicated by the current selection of key or plurality of keys, within a current location in the document as displayed on the display, as an interim displayed, ghosted, or other differently formatted character, and without requiring the user to look at the keyboard,

recognizing the confirmation as a valid key input, and

then entering the same displayed character into that current location in the document, in its regular format, as the valid key stroke or input.

22. A method for providing an electronic device with a keypad and a displayed key feedback, comprising the steps of:

displaying on an electronic device a display viewable to a user of the electronic device for use in displaying and editing a document having characters in a regular format;

receiving user input from a keypad positioned relative to the display and including a plurality of discrete keys so that the keypad can be operated by the user while at least some of its plurality of discrete keys are all or partially hidden from the user'"'"'s view;

determining, using a separate touch sensitive sensor associated with each discrete key, which key or plurality of keys on the keypad the user is currently selecting and is about to enter as characters within the document;

communicating a feedback about a character indicated by the key or plurality of keys selected or about to be selected, while the user is using the plurality of discrete keys to select and enter characters within the document, by successively displaying the character as a succession of interim displayed, ghosted or other differently formatted character within a current location in the displayed document, but not yet entered into the document;

receiving a confirmation from the user as to the interim displayed or ghosted character within the current location in the displayed document, including

while the user is selecting from the plurality of discrete keys to enter characters within the document,

allowing the user to depress or further select the key or plurality of keys;

displaying a preview of the character indicated by the current selection of key or plurality of keys, within a current location in the document as displayed on the display, as an interim displayed, ghosted, or other differently formatted character, and without requiring the user to look at the keyboard; and

recognizing the confirmation as a valid key input, and

then entering the same displayed character into that current location in the document, in its regular format, as the valid key stroke or input.