Patent US6522351B1 successfully refreshed from Google Patents.
US6522351B1
Expired / Lapsed
US
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Stereoscopic image display apparatus using a single projector
Assignee: Samsung Electronics Co Ltd
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Filing: 1996-12-02
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Granted: 2003-02-18
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Expires: 2016-12-02
Abstract
Abstract A stereoscopic image display apparatus displays a stereoscopic image using only a single projector. The apparatus includes a photography section for sensing a left image and a right image of an object and converting the left and right images into respective first and second television signals. The first and second television signals are received by a receiving section which then provides the signals to a double-scanning section. The double-scanning section scans the left and right image signals received from the receiving section at a doubled horizontal scan frequency to produce a left double-scanned image signal and a right double-scanned image signal. A multiplexing section then alternately selects the left and right double-scanned image signals at a switching speed of the doubled horizontal frequency to thereby produce a single, multiplexed double-scanned image signal. A projection type display section projects the multiplexed double-scanned image signal onto a single display screen.
Inventors
- 👤 Joon-soo Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:52
CPC Classifications
H; H04; H04N; H04N13/00; H04N13/10; H04N13/106; H04N13/139; H04N13/161; H04N13/194; H04N13/20; H04N13/204; H04N13/239; H04N13/30; H04N13/363
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A stereoscopic image display apparatus comprising: a receiver receiving first and second television signals and producing left and right image signals therefrom, respectively; double-scanning means for repeatedly scanning twice each line of said left and right image signals, provided from said receiver, at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said doubled horizontal frequency and producing a single multiplexed double-scanned image signal; and display means for projecting said multiplexed double-scanned image signal onto a single display screen.
Claim 2
Dependent Claim
103 words
A stereoscopic image display apparatus comprising: a receiver receiving first and second television signals and producing left and right image signals therefrom, respectively; double-scanning means for repeatedly scanning twice each line of said left and right image signals, provided from said receiver, at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said doubled horizontal frequency and producing a single multiplexed double-scanned image signal; and display means for projecting said multiplexed double-scanned image signal onto a single display screen.
Claim 3
Dependent Claim
117 words
A stereoscopic image display apparatus comprising: double-scanning means for repeatedly scanning twice each line of left and right image signals, provided from first and second cameras, at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said doubled horizontal frequency, and producing a single multiplexed double-scanned image signal; transmitting means for transmitting said multiplexed double-scanned image signal as a television signal; receiving means for receiving said television signal and providing a demodulated multiplexed double-scanned image signal; and a display means for projecting said demodulated multiplexed double-scanned image signal onto a single display screen.
Claim 4
Dependent Claim
117 words
A stereoscopic image display apparatus comprising: double-scanning means for repeatedly scanning twice each line of left and right image signals, provided from first and second cameras, at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said doubled horizontal frequency, and producing a single multiplexed double-scanned image signal; transmitting means for transmitting said multiplexed double-scanned image signal as a television signal; receiving means for receiving said television signal and providing a demodulated multiplexed double-scanned image signal; and a display means for projecting said demodulated multiplexed double-scanned image signal onto a single display screen.
Claim 5
Dependent Claim
83 words
A stereoscopic image display apparatus comprising: double-scanning means for repeatedly scanning twice each line of an input left and right image signals at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said double horizontal frequency and producing a single multiplexed doubled-scanned image signal; and display means for projecting said multiplexed double-scanned image signal onto a single display screen.
Claim 6
Dependent Claim
83 words
A stereoscopic image display apparatus comprising: double-scanning means for repeatedly scanning twice each line of an input left and right image signals at a doubled horizontal frequency of said image signals to produce left and right double-scanned image signals; multiplexing means for alternately selecting said left and right double-scanned image signals at a switching speed of said double horizontal frequency and producing a single multiplexed doubled-scanned image signal; and display means for projecting said multiplexed double-scanned image signal onto a single 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) | 2006-02-17 | 2006-08-19 | 2007-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-17 | 2010-08-19 | 2011-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-17 | 2014-08-19 | 2015-02-18 | $7700.00 | Window Closed / Lapsed |