US4729017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic display method and apparatus therefor
Assignee: Canon Inc
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Filing: 1986-02-25
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Granted: 1988-03-01
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Expires: 2006-02-25
Abstract
Abstract A lattice plate is arranged in front of and in a spaced relation from an image display screen. An image to be displayed is divided into pixels each of which is modulated to a grid having a grid interval determined by far-near information carried by the pixel. When a viewer views the screen through the lattice plate, he/she can view a steroscopic image.
Inventors
- 👤 Kazuo Sayanagi
- 👤 Hisashi Nakatsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:13
CPC Classifications
H; H04; H04N; H04N13/00; H04N13/30; H04N13/302; H04N13/31; H04N13/305
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A stereoscopic display apparatus comprising: image display means for displaying an image, wherein said image display means includes output means for dividing an image to be displayed into a plurality of pixels and converting each of the pixels into fine area grids having a grid interval being variable in accordance with distance information of the pixel, and for outputting the converted pixel to the image display screen; and a lattice plate arranged in front of and in a spaced relation from said image display screen, said lattice plate having a plurality of lattices.
Claim 2
Dependent Claim
93 words
A stereoscopic display apparatus comprising: image display means for displaying an image, wherein said image display means includes output means for dividing an image to be displayed into a plurality of pixels and converting each of the pixels into fine area grids having a grid interval being variable in accordance with distance information of the pixel, and for outputting the converted pixel to the image display screen; and a lattice plate arranged in front of and in a spaced relation from said image display screen, said lattice plate having a plurality of lattices.
Claim 3
Dependent Claim
24 words
A stereoscopic display apparatus according to claim 1, wherein said lattice plate has a plurality of lattices, said lattice having a predetermined lattice interval.
Claim 4
Dependent Claim
25 words
A stereoscopic disply apparatus according to claim 2 wherein a lattice interval of said lattice plate is larger than the grid interval of the pixel.
Claim 5
Dependent Claim
24 words
A stereoscopic display apparatus according to claim 1, further comprising storage means for storing pixel data including pattern information for representing the grid interval.
Claim 6
Dependent Claim
25 words
A stereoscopic display apparatus according to claim 4, wherein said output means converts each pixel into fine area grids in accordance with said pattern information.
Claim 7
Dependent Claim
68 words
A stereoscopic display method comprising the steps of: arranging a lattice plate having a plurality of lattices, in front of and in a spaced relation from an image display screen; dividing an image to be displayed into a plurality of pixels; and converting each pixel into grids having a grid interval determined by distance information of the pixel and outputting the converted pixel to the image display screen.
Claim 8
Dependent Claim
68 words
A stereoscopic display method comprising the steps of: arranging a lattice plate having a plurality of lattices, in front of and in a spaced relation from an image display screen; dividing an image to be displayed into a plurality of pixels; and converting each pixel into grids having a grid interval determined by distance information of the pixel and outputting the converted pixel to the image display screen.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |