Patent US5676442A successfully refreshed from Google Patents.
US5676442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection display apparatus
Assignee: Seiko Epson Corp
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Filing: 1996-03-27
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Granted: 1997-10-14
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Expires: 2016-03-27
Abstract
Abstract A projection display apparatus comprising a floppy disk drive device and floppy disk insertion opening in an appropriate arrangement is provided. A power supply unit, over which is disposed a floppy disk drive unit, is provided at the back of the projection display apparatus. The floppy disk drive unit is positioned offset to the left side of the projection display apparatus. A floppy disk (FD) insertion opening is positioned in a side wall at the left side of the exterior case of the projection display apparatus. An FD drive circuit board is positioned horizontally to the right of the floppy disk drive unit and slightly overlapping a drive control circuit board such that the electrical connections between the drive control circuit board and the FD drive circuit board can be made in this overlapping area. The side wall in which the floppy disk insertion opening is provided includes the operating panel in which the input/output terminals and operating switches are also disposed. This arrangement enables the floppy disk drive unit to be provided inside the projection display apparatus without using specific separate mounting members or reinforcing members therefor, and enables electrical connections between the power supply unit and control circuit board to be established via the FD drive circuit board without using separate wiring or harnesses. Operability is also improved because the floppy disk insertion opening is provided at the operating panel side.
Inventors
- 👤 Motoyuki Fujimori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:43
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3102; H04N9/3105; G; G03; G03B; G03B21/00; G03B21/14; G03B21/16; H04N9/3141; H04N9/3144
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
149 words
A projection display apparatus, comprising: an outer case; receiving means for receiving a recording medium, said receiving means including an insertion opening; recording medium drive means for retrieving information stored in a recording medium received in said receiving means and for supplying image signals corresponding to said information retrieved from said recording medium; a power supply unit; a light source lamp unit; a shield case for enclosing at least one of said power supply unit and said light source lamp unit; image projection means for forming an optical image corresponding to said image signals supplied from said recording medium drive means and for projection enlarging said optical image for display on a screen; wherein said receiving means, said recording medium drive means, and at least a portion of said image projection means are housed in said outer case; and said receiving means is securely fastened to said shield case.
Claim 2
Dependent Claim
149 words
A projection display apparatus, comprising: an outer case; receiving means for receiving a recording medium, said receiving means including an insertion opening; recording medium drive means for retrieving information stored in a recording medium received in said receiving means and for supplying image signals corresponding to said information retrieved from said recording medium; a power supply unit; a light source lamp unit; a shield case for enclosing at least one of said power supply unit and said light source lamp unit; image projection means for forming an optical image corresponding to said image signals supplied from said recording medium drive means and for projection enlarging said optical image for display on a screen; wherein said receiving means, said recording medium drive means, and at least a portion of said image projection means are housed in said outer case; and said receiving means is securely fastened to said shield case.
Claim 3
Dependent Claim
37 words
The projection display apparatus of claim 1, further comprising a group of input/output terminals arranged on a first side of said outer case; and wherein the insertion opening is positioned toward a bottom of said outer case.
Claim 4
Dependent Claim
39 words
The projection display apparatus of claim 1, further comprising a group of input/output terminals for communicating with an external device, the group of input/output terminals and said insertion opening being arranged on a first side of said outer case.
Claim 5
Dependent Claim
34 words
The projection display apparatus of claim 1, further comprising a group of operating switches arranged adjacent to said insertion opening; and wherein said insertion opening is positioned toward a top of said outer case.
Claim 6
Dependent Claim
34 words
The projection display apparatus of claim 3, further comprising a group of operating switches arranged adjacent to said insertion opening; and wherein said insertion opening is positioned toward a top of said outer case.
Claim 7
Dependent Claim
24 words
The projection display apparatus of claim 4 wherein said recording medium drive means is fixed in a position above said light source lamp unit.
Claim 8
Dependent Claim
24 words
The projection display apparatus of claim 5 wherein said recording medium drive means is fixed in a position above said light source lamp unit.
Claim 9
Dependent Claim
55 words
The projection display apparatus of claim 6, further comprising drive control means for controlling said recording medium drive means and a drive circuit board on which said drive control means is disposed; and wherein said drive circuit board is positioned adjacent to said recording medium drive means in a widthwise direction of said outer case.
Claim 10
Dependent Claim
55 words
The projection display apparatus of claim 7, further comprising drive control means for controlling said recording medium drive means and a drive circuit board on which said drive control means is disposed; and wherein said drive circuit board is positioned adjacent to said recording medium drive means in a widthwise direction of said outer case.
Claim 11
Dependent Claim
31 words
The projection display apparatus of claim 1 wherein said recording medium received by said receiving means is a floppy disk, and said recording medium drive means includes a floppy disk drive.
Claim 12
Dependent Claim
37 words
The projection display apparatus of claim 1 wherein said recording medium received by said receiving means is a PCMCIA card, said insertion opening is a PCMCIA slot, and said recording medium drive means includes a PCMCIA drive.
Claim 13
Dependent Claim
169 words
A projection display apparatus, comprising: an outer case; receiving means for receiving a recording medium, said receiving means including an insertion opening; recording medium drive means for retrieving information stored in a recording medium received in said receiving means and for supplying image signals corresponding to said information retrieved from said recording medium; a power supply unit; a light source unit; optical means for optically processing light emitted from said light source unit to form an optical image corresponding to said image signals supplied from said recording medium drive means; a shield case for enclosing at least one of said power supply unit and said light source; and projection means for projection enlarging said optical image for display on a screen; wherein said receiving means, said recording medium drive means, said shield case, said light source, said power supply unit, said optical means, and at least a portion of said projection means are housed in said outer case; and said receiving means is securely fastened to said shield case.
Claim 14
Dependent Claim
169 words
A projection display apparatus, comprising: an outer case; receiving means for receiving a recording medium, said receiving means including an insertion opening; recording medium drive means for retrieving information stored in a recording medium received in said receiving means and for supplying image signals corresponding to said information retrieved from said recording medium; a power supply unit; a light source unit; optical means for optically processing light emitted from said light source unit to form an optical image corresponding to said image signals supplied from said recording medium drive means; a shield case for enclosing at least one of said power supply unit and said light source; and projection means for projection enlarging said optical image for display on a screen; wherein said receiving means, said recording medium drive means, said shield case, said light source, said power supply unit, said optical means, and at least a portion of said projection means are housed in said outer case; and said receiving means is securely fastened to said shield case.
Claim 15
Dependent Claim
37 words
The projection display apparatus of claim 12, further comprising a group of input/output terminals arranged on a first side of said outer case; and wherein said insertion opening is positioned toward a bottom of said outer case.
Claim 16
Dependent Claim
39 words
The projection display apparatus of claim 12, further comprising a group of input/output terminals for communicating with an external device, said group of input/output terminals and said insertion opening being arranged on a first side of said outer case.
Claim 17
Dependent Claim
34 words
The projection display apparatus of claim 12, further comprising a group of operating switches arranged adjacent to said insertion opening; and wherein said insertion opening is positioned toward a top of said outer case.
Claim 18
Dependent Claim
34 words
The projection display apparatus of claim 14, further comprising a group of operating switches arranged adjacent to said insertion opening; and wherein said insertion opening is positioned toward a top of said outer case.
Claim 19
Dependent Claim
22 words
The projection display apparatus of claim 15 wherein said recording medium drive means is fixed in a position above said light source.
Claim 20
Dependent Claim
22 words
The projection display apparatus of claim 16 wherein said recording medium drive means is fixed in a position above said light source.
Claim 21
Dependent Claim
55 words
The projection display apparatus of claim 17, further comprising drive control means for controlling said recording medium drive means and a drive circuit board on which said drive control means is disposed; and wherein said drive circuit board is positioned adjacent to said recording medium drive means in a widthwise direction of said outer case.
Claim 22
Dependent Claim
54 words
The projection display apparatus of claim 18, further comprising drive control means for controlling said recording medium drive means and a drive circuit board which said drive control means is disposed; and wherein said drive circuit board is positioned adjacent to said recording medium drive means in a widthwise direction of said outer case.
Claim 23
Dependent Claim
31 words
The projection display apparatus of claim 12 wherein said recording medium received by said receiving means is a floppy disk, and said recording medium drive means includes a floppy disk drive.
Claim 24
Dependent Claim
37 words
The projection display apparatus of claim 12 wherein said recording medium received by said receiving means is a PCMCIA card, said insertion opening is a PCMCIA slot, and said recording medium drive means includes a PCMCIA drive.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-10-13 | 2001-04-14 | 2001-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-13 | 2005-04-14 | 2005-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-13 | 2009-04-14 | 2009-10-14 | $7700.00 | Window Closed / Lapsed |