US4998283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen device
Assignee: Panasonic Holdings Corp
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Filing: 1990-07-17
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Granted: 1991-03-05
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Expires: 2010-07-17
Abstract
Abstract A screen device suited to use in a projection type display device for a high-definition television set. The screen device includes a screen on which television images are projected, and a screen frame to which this screen is attached at the central section thereof. Incorporated into this screen frame are speakers which are used as the front speakers of a sound reproduction system of the type which is commonly known as the 3-1 type 4-channel system.
Inventors
- 👤 Tsutomu Nishida
- 👤 Kazumi Kawashima
- 👤 Kazuyasu Yamamoto
- 👤 Naoki Shintani
- 👤 Naoji Okumura
- 👤 Yasuaki Sakanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:00
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/565; H04N5/64; H04N5/642
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
223 words
A screen apparatus, comprising: a screen onto which images are to be projected, said screen being divided into three vertical sections, respectively left side, center and right side sections; a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part; a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter, at least one front-left channel flat-type woofer having a diaphragm, a front-center channel flat-type woofer having a diaphragm and a front-right channel flat-type woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper or lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, said left side section of said screen being integrally incorporated with said diaphragm of said front-left channel woofer, said center section of said screen being integrally incorporated with said diaphragm of said front-center channel flat-type woofer and said right side section of said screen being integrally incorporated with said diaphragm of said front-right channel flat-type woofer.
Claim 2
Dependent Claim
223 words
A screen apparatus, comprising: a screen onto which images are to be projected, said screen being divided into three vertical sections, respectively left side, center and right side sections; a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part; a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter, at least one front-left channel flat-type woofer having a diaphragm, a front-center channel flat-type woofer having a diaphragm and a front-right channel flat-type woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper or lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, said left side section of said screen being integrally incorporated with said diaphragm of said front-left channel woofer, said center section of said screen being integrally incorporated with said diaphragm of said front-center channel flat-type woofer and said right side section of said screen being integrally incorporated with said diaphragm of said front-right channel flat-type woofer.
Claim 3
Dependent Claim
144 words
A screen apparatus, comprising: a screen onto which images are to be projected; a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part; a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter and at least one woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper and lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, and said screen being integrally incorporated with said diaphragm of said woofer.
Claim 4
Dependent Claim
144 words
A screen apparatus, comprising: a screen onto which images are to be projected; a screen frame surrounding and supporting said screen so as to allow said screen to oscillate independently of said screen frame, said screen frame having a left side part, center upper and lower parts, and a right side part; a group of speakers including at least one front-left channel tweeter, at least one front-center channel tweeter, at least one front-right channel tweeter and at least one woofer having a diaphragm, said front-left channel tweeter being incorporated in said left side part of said screen frame, said front-center channel tweeter being incorporated in one of said center upper and lower parts of said screen frame, said front-right channel tweeter being incorporated in said right side part of said screen frame, and said screen being integrally incorporated with said diaphragm of said woofer.
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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) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |