WO1998040844B1 - User input device for a computer system - Google Patents

User input device for a computer system

Info

Publication number
WO1998040844B1
WO1998040844B1 PCT/US1998/004903 US9804903W WO9840844B1 WO 1998040844 B1 WO1998040844 B1 WO 1998040844B1 US 9804903 W US9804903 W US 9804903W WO 9840844 B1 WO9840844 B1 WO 9840844B1
Authority
WO
WIPO (PCT)
Prior art keywords
light
waveguides
input device
recited
waveguide
Prior art date
Application number
PCT/US1998/004903
Other languages
French (fr)
Other versions
WO1998040844A1 (en
Filing date
Publication date
Priority claimed from US08/818,774 external-priority patent/US5914709A/en
Application filed filed Critical
Priority to JP53981898A priority Critical patent/JP4122065B2/en
Priority to EP98909160A priority patent/EP0965098B1/en
Priority to AT98909160T priority patent/ATE218227T1/en
Priority to KR10-1999-7008342A priority patent/KR100514156B1/en
Priority to CA002283169A priority patent/CA2283169C/en
Priority to AU67010/98A priority patent/AU742483B2/en
Priority to DE69805610T priority patent/DE69805610T2/en
Publication of WO1998040844A1 publication Critical patent/WO1998040844A1/en
Publication of WO1998040844B1 publication Critical patent/WO1998040844B1/en
Priority to HK01100240A priority patent/HK1029422A1/en

Links

Abstract

A user input device for an electronic device is disclosed. The user input device provides positional information using a grid of light. The grid of light is produced from a light source and waveguides. The grid of light is also received and processed using waveguides and a light detector. Optionally, optics may be used to enhance the operation of the user input device. The user input device is particularly suited for use as a user input device for a computer system or the like.

Claims

AMENDED CLAIMS
[received by the International Bureau on 9 September 1998 (09.09.98); original claims 1, 10, 12, 25 and 26 amended; original claims 17 and 18 cancelled; new claims 27-31 added; remaining claims unchanged (4 pages)]
1. An apparatus, comprising: a light source; a multichannel non-fiber transmission waveguide portion optically coupled to receive light from said light source, said transmission waveguide portion including a plurality of light transmission waveguides that produce a first set of light beams by guiding the light received from said light source so that said first set of light beams emanate from said light transmission waveguides in a first direction; a multichannel non-fiber reception waveguide portion spaced apart from said transmission waveguide in the first direction, said reception waveguide portion including a plurality of light reception waveguides for receiving said first set of light beams emanating from said light transmission waveguides; and a light detector optically coupled to said reception waveguide portion to receive the light from the light reception waveguides of said reception waveguide portion, said light detector measures light intensity of the light from the light reception waveguides of said reception waveguide portion.
2. An apparatus as recited in claim 1, wherein said apparatus is an input device for an electronic device.
3. An apparatus as recited in claim 2, wherein between said transmission waveguide portion and said reception waveguide portion an input area is produced.
4. An apparatus as recited in claim 3 , wherein a user can provide input to the electronic device by interacting with the input area with a finger or a stylus.
5. An apparatus as recited in claim 1, wherein the light transmission waveguides and the light reception waveguides have a rectagular cross-section.
6. An apparatus as recited in claim 3, wherein said apparatus is a user input apparatus for a computer system by interacting with the input area.
7. An apparatus as recited in claim 1, wherein said light detector is an integrated circuit having a light sensing area optically coupled to said reception waveguide portion to receive the light from the light reception waveguides of said reception waveguide portion.
8. An apparatus as recited in claim 1, wherein said apparatus further comprises:
21 lenses optically positioned proximate to said transmission waveguide portion to collimate said first set of light beams emanating from the light transmission waveguides towards the corresponding light reception waveguides of said reception waveguide portion.
9 An apparatus as recited in claim 1, wherein the light transmission waveguides and the light reception waveguides are lithographically defined waveguides.
10. An apparatus as recited in claim 9, wherein the light transmission waveguides and the light reception waveguides have a rectangular cross-section.
11. An apparatus as recited in claim 8, wherein said apparatus is an input device for providing user input to a computer system, and wherein said light detector is an integrated circuit having a light sensing area optically coupled to said reception waveguide portion to receive the light from the light channels of said reception waveguide.
12. An input device for an electronic device, comprising: at least one light source; a light detector to detect light intensity at a plurality of light detecting elements; and a lithographically defined waveguide structure including a plurality of waveguides, wherein said light source couples light into a first set of the waveguides of said waveguide structure, said first set of waveguides directs the light coupling into the waveguides to produce a grid of light beams from the light coupling into the waveguides, the grid of light beams traverse an input area and arc then directed to said light detector by a second set of the waveguides of said waveguide structure.
13. An input device as recited in claim 12, wherein said lithographically defined waveguide structure is a dielectric material, and wherein the first set of waveguides send beams of light across the input area towards corresponding waveguides of the second set of waveguides.
1 . An input device as recited in claim 13, wherein said input device further comprises: lenses optically positioned proximate to said waveguide structure to collimate the light beams emanating from the first set of waveguides.
15. An input device as recited in claim 12, wherein said input device further comprises: lenses optically positioned proximate to said waveguide structure to collimate the light beams emanating from the first set of waveguides.
22
16. An input device as recited in claim 15, wherein said lenses are micro lenses formed in a strip of material that is placed proximate to a light exit side of the first set of waveguides where the light beams emanate.
1 . An input device as recited in claim 12, wherein said input device provides user input to a computer system, and wherein said light detector is an integrated circuit having a light sensing area optically coupled to said reception waveguide portion to receive the light from the light channels of said reception waveguide.
20. An input device as recited in claim 19, wherein the light sensing area of the integrated circuit includes a plurality of photosensitive cells.
21. An input device as recited in claim 12, wherein said waveguide structure includes a plurality of sections.
22. An input device as recited in claim 22, wherein, a first of the waveguide sections produces horizontal light beams, a second of the waveguide sections produces vertical light beams, a third of the waveguide sections disposed opposite to the first of the waveguide sections across the input area receives the horizontal fight beams from the first of the waveguide sections, and a fourth of the waveguide sections disposed opposite to the third of the waveguide sections across the input area receives the vertical light beams from the second of the waveguide sections.
23. An input device as recited in claim 12, wherein said waveguide structure is a unitary structure.
24. An input device as recited in claim 12, wherein the electronic device is a computer system having a display device, the display device includes a screen area and a peripheral portion, and wherein said input device is affixed to the peripheral portion of the display device, with the input area of said input device being placed over the screen area of the display device.
25. A method for deteπniiiing a user's input with respect to an input device, said method comprising: (a) providing a source of light;
(b) producing a plurality of parallel light beams by guiding light from the source of light through a plurality of paths of a multichannel non-fiber transmission waveguide;
(c) simultaneously directing the parallel light beams across an input area of the input device, the input area being positioned with respect to the input device;
23 (d) simultaneously receiving certain of the parallel light beams after having crossed the input area;
(e) deteiTTjuning light intensity for each of the parallel light beams received; and
(f) determining whether there is a user's input with respect to the input area based on the deteπnincd light intensity values.
26. A method as recited in claim 25, wherein said method determines a position of the user's input with respect to the input device, and wherein said method further comprises:
(g) deteπmning a position of the user's input with respect to the input device based on the determined light intensity values.
27. An apparatus as recited in any of claims 1-10, wherein said transmission waveguide portion is formed of a dielectric material, and said reception waveguide is formed of a dielectric material.
28. An input device as recited in claims 12 or 15-24, wherein said input device further comprises: lenses optically positioned proximate to said waveguide structure to collimate the light beams emanating from the first set of waveguides.
29. An input device as recited in any of claims 12-16, 19-24 or 28, wherein said lithographically defined waveguide structure is a dielectric structure.
30. An input device as recited in claims 12-16, 1 -24 or 28, wherein the first set of waveguides redirect the light coupling into the waveguides such that the grid of light beams produced are directed in a substantially different direction than the direction in which the light coupled into the first set of waveguides.
31. An input device as recited in any of claims 12-16, 19-24 or 28, wherein said lithographically defined waveguide structure is a dielectric structure.
24
PCT/US1998/004903 1997-03-14 1998-03-12 User input device for a computer system WO1998040844A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP53981898A JP4122065B2 (en) 1997-03-14 1998-03-12 User input device for computer system
EP98909160A EP0965098B1 (en) 1997-03-14 1998-03-12 User input device for a computer system
AT98909160T ATE218227T1 (en) 1997-03-14 1998-03-12 INPUT DEVICE FOR A COMPUTER SYSTEM
KR10-1999-7008342A KR100514156B1 (en) 1997-03-14 1998-03-12 User input device for a computer system
CA002283169A CA2283169C (en) 1997-03-14 1998-03-12 User input device for a computer system
AU67010/98A AU742483B2 (en) 1997-03-14 1998-03-12 User input device for a computer system
DE69805610T DE69805610T2 (en) 1997-03-14 1998-03-12 INPUT DEVICE FOR A COMPUTER SYSTEM
HK01100240A HK1029422A1 (en) 1997-03-14 2001-01-10 User input device for a computer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/818,774 1997-03-14
US08/818,774 US5914709A (en) 1997-03-14 1997-03-14 User input device for a computer system

Publications (2)

Publication Number Publication Date
WO1998040844A1 WO1998040844A1 (en) 1998-09-17
WO1998040844B1 true WO1998040844B1 (en) 1998-10-22

Family

ID=25226380

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/004903 WO1998040844A1 (en) 1997-03-14 1998-03-12 User input device for a computer system

Country Status (11)

Country Link
US (3) US5914709A (en)
EP (1) EP0965098B1 (en)
JP (1) JP4122065B2 (en)
KR (1) KR100514156B1 (en)
CN (1) CN1211756C (en)
AT (1) ATE218227T1 (en)
AU (1) AU742483B2 (en)
CA (1) CA2283169C (en)
DE (1) DE69805610T2 (en)
HK (1) HK1029422A1 (en)
WO (1) WO1998040844A1 (en)

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