WO1998039842B1 - Wrist-pendant wireless optical keyboard - Google Patents
Wrist-pendant wireless optical keyboardInfo
- Publication number
- WO1998039842B1 WO1998039842B1 PCT/US1998/004480 US9804480W WO9839842B1 WO 1998039842 B1 WO1998039842 B1 WO 1998039842B1 US 9804480 W US9804480 W US 9804480W WO 9839842 B1 WO9839842 B1 WO 9839842B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- another
- optical
- predetermined input
- human digit
- wrist
- 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.)
- Ceased
Links
Abstract
A method and apparatus is provided for sensing, encoding and transmitting electronic keyboard data, pointing device control signals and voice input. The apparatus includes a wireless device (11) appended, for example, to each wrist of the operator. The wireless device (11) utilizes an optical reflectance matrix detecting key closures, an inertial motion sensor encoding pointing device commands and sound acquisition circuit, all of whose signals are optionally multiplexed and broadcast at, for example, radio frequency or wireless to a local base station (13) connected to the computer-based host system (14). The optical reflectance matrix includes a plurality of infrared LED's (16) or other light sources sequentially illuminating columns in a plane below the palm of the user's hand, from which reflections from the user's fingers are detected along rows with a plurality of sensors such as phototransistors (17). The optical plane is penetrated by the user's extended fingers (or other obstructions), in an 'air typing' action. Hand motion is sensed with two dimensional accelerometers and encoded to generate a pointing device control signal. Acoustic signals are optionally acquired in an on-board audio system which also provides sound feedback transmitted for the base station (13) for two-way voice communications and to confirm input.
Claims
AMENDED CLAIMS
[received by the International Bureau on 2 October 1998 (02.10.98); original claim 18 amended; new claims 19-22 added; remaining claims unchanged (2 pages)]
16. A system according to claim 15, further comprising another system removably connectable to another wrist of the user having at least another human digit, wherein said system is used to access the at least one predetermined input accessible to the at least one human digit, and said another system is used to access at least another predetermined input accessible to the at least another human digit.
17. A system according to claim 15, further comprising another system removably connectable to another wrist of the user having at least another human digit, wherein said system is used to access the at least one predetermined input accessible to the at least one human digit, and said another system is used to access at least another predetermined input accessible to the at least another human digit, wherein said system and said another system are communicable with each other, and wherein at least one of said system is optionally accessible to the at least another predetermined input, and said another system is optionally accessible to the at least one predetermined input, via a shift operation.
18. The method of claims 9 or 10, wherein said reflecting step (b) further comprises the step of reflecting the plurality of second light beams via the at least one intersection between the at least one of the first light beams and the at least one human digit in a second direction via optical beam redirection.
19. The method of claims 9 or 10, further comprising the step of arranging at least one of the plurality of optical sources and the plurality of optical detectors in an array geometry in a form of a hand, the array geometry comprising a fan shape aligning with carpal bones in the hand.
20. The method of claims 9 or 10, wherein the plurality of optical sources and the plurality of optical detectors are at least one of retractable and collapsible.
22
21. The method of claims 9 or 10, wherein the plurality of optical sources and the plurality of optical detectors comprise narrow beamwidth optical emitters and detectors, respectively.
22. The method of claims 1, 9 or 10, further comprising the step of detecting at least one of hand motion and tilt in three dimensional space of the wrist device by determining real-time acceleration vectors using an array of accelerometers to free the fingers for typing and mouse key, alphanumeric key or function key closure while moving a cursor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU64516/98A AU6451698A (en) | 1997-03-06 | 1998-03-06 | Wrist-pendant wireless optical keyboard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4050297P | 1997-03-06 | 1997-03-06 | |
| US60/040,502 | 1997-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998039842A1 WO1998039842A1 (en) | 1998-09-11 |
| WO1998039842B1 true WO1998039842B1 (en) | 1998-12-23 |
Family
ID=21911310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1998/004480 Ceased WO1998039842A1 (en) | 1997-03-06 | 1998-03-06 | Wrist-pendant wireless optical keyboard |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6097374A (en) |
| AU (1) | AU6451698A (en) |
| WO (1) | WO1998039842A1 (en) |
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-
1998
- 1998-03-06 WO PCT/US1998/004480 patent/WO1998039842A1/en not_active Ceased
- 1998-03-06 AU AU64516/98A patent/AU6451698A/en not_active Abandoned
- 1998-03-06 US US09/035,983 patent/US6097374A/en not_active Expired - Lifetime
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