US4947261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable image input device
Assignee: Sharp Corp
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Filing: 1988-07-07
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Granted: 1990-08-07
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Expires: 2008-07-07
Abstract
Abstract An image input device of a portable type includes a light source for reading an original document, a photo-electric converting element for converting reflected light from the original document into an electrical signal, a memory function section having a solid state memory element for storing the output of the photo-electric converting element, an output port for allowing external connections, and operating keys for operating the image input device. Furthermore, the image input device may include a diffraction grating for diffracting the reflected light to form an image on the photo-electric converting element and interchangeable lenses having different focal lengths for achieving various magnifications.
Inventors
- 👤 Toshio Ishikawa
- 👤 Yukio Kurata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/03; H04N1/031; H04N1/0315; H04N1/0313; H04N1/04; H04N1/0402; H04N1/0408; H04N1/042; H04N1/0435; H04N1/0455; H04N1/10; H04N1/107; H04N1/1075; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N1/1935; H04N2201/00; H04N2201/0008; H04N2201/0034; H04N2201/0048; H04N2201/0077; H04N2201/024; H04N2201/02493
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
140 words
An image input device of a portable type, comprising: a light source for emitting light onto an information medium; image forming optical means for collecting said light emitted by said light source when reflected from said information medium and directing said light reflected from said information medium; photo-electric converting means for developing an image signal representative of an image on said information medium as reflected by said light and directed by said image forming optical means; a memory function section having a solid state memory element for storing said image signal from said photo-electric converting means; an output port for removably connecting external devices with said memory function section; and operating keys for operating said image input device; said image forming optical means having a portion for receiving interchangeable lenses by removably attaching and detaching said lenses to said portion.
Claim 2
Dependent Claim
140 words
An image input device of a portable type, comprising: a light source for emitting light onto an information medium; image forming optical means for collecting said light emitted by said light source when reflected from said information medium and directing said light reflected from said information medium; photo-electric converting means for developing an image signal representative of an image on said information medium as reflected by said light and directed by said image forming optical means; a memory function section having a solid state memory element for storing said image signal from said photo-electric converting means; an output port for removably connecting external devices with said memory function section; and operating keys for operating said image input device; said image forming optical means having a portion for receiving interchangeable lenses by removably attaching and detaching said lenses to said portion.
Claim 3
Dependent Claim
17 words
An image input device as claimed in claim 1, wherein said light source comprises a semiconductor laser.
Claim 4
Dependent Claim
17 words
An image input device as claimed in claim 1, wherein said photo-electric converting means comprises a CCD.
Claim 5
Dependent Claim
39 words
An image input device as claimed in claim 1, wherein said image forming optical means comprises at least one image forming lens for converging said light reflected from said information medium and a diffraction grating for directing said light.
Claim 6
Dependent Claim
31 words
An image input device as claimed in claim 1, wherein said memory function section comprises connecting means for removably attaching and detaching said exchangeable memory means with said photo-electric converging means.
Claim 7
Dependent Claim
80 words
An image input device of a portable type, comprising: a light source for emitting light onto an original document; photo-electric converting means for developing an electrical signal representative of an image on said original document as reflected by said light from said original document; exchangeable memory means for storing said electrical signal from said photo-electric converting means; an output port for removably connecting an external device with said exchangeable memory means; and operating keys for operating said image input device.
Claim 8
Dependent Claim
80 words
An image input device of a portable type, comprising: a light source for emitting light onto an original document; photo-electric converting means for developing an electrical signal representative of an image on said original document as reflected by said light from said original document; exchangeable memory means for storing said electrical signal from said photo-electric converting means; an output port for removably connecting an external device with said exchangeable memory means; and operating keys for operating said image input device.
Claim 9
Dependent Claim
26 words
An image input device as claimed in claim 6, wherein said exchangeable memory means comprises a RAM, memory refresh means, a CPU, and a power source.
Claim 10
Dependent Claim
31 words
An image input device as claimed in claim 7, wherein said electrical signal is converted to a digital signal by said CPU and said digital signal is stored in said RAM.
Claim 11
Dependent Claim
30 words
An image input device as claimed in claim 6, wherein said exchangeable memory means comprises connecting means for attaching and detaching said exchangeable memory means with said photo-electric converting means.
Claim 12
Dependent Claim
102 words
An image input device of a portable type, comprising: a light source for emitting light towards an information medium; image forming optical means for converging said light onto said information medium and directing said light reflected from said information medium; photo-electric converting means for developing an image signal representative of an image on said information medium as reflected by said light from said image forming optical means; exchangeable memory means for storing said image signal from said photo-electric converting means; an output port for removably connecting external devices with said exchangeable memory means; and operating keys for operating said image input device.
Claim 13
Dependent Claim
102 words
An image input device of a portable type, comprising: a light source for emitting light towards an information medium; image forming optical means for converging said light onto said information medium and directing said light reflected from said information medium; photo-electric converting means for developing an image signal representative of an image on said information medium as reflected by said light from said image forming optical means; exchangeable memory means for storing said image signal from said photo-electric converting means; an output port for removably connecting external devices with said exchangeable memory means; and operating keys for operating said image input device.
Claim 14
Dependent Claim
22 words
An image input device as claimed in claim 10, wherein said image forming optical means comprises diffraction grating means and a lens.
Claim 15
Dependent Claim
17 words
An image input device as claimed in claim 10, wherein said light source comprises a semiconductor laser.
Claim 16
Dependent Claim
28 words
An image input device as claimed in claim 11, wherein said light source, said photo-electric converting means and said diffraction grating means are hermetically sealed in a unit.
Claim 17
Dependent Claim
27 words
An image input device as claimed in claim 13, wherein said unit further comprises connecting means for removably attaching and detaching said unit with said exchangeable means.
References Cited (Backward Citations)
US4314283A
Cited
US4489351A
Cited
US4538060A
Cited
US4731668A
Cited
US4722065A
Cited
JPS60218179A
Cited
US4602293A
Cited
US4701804A
Cited
US4716291A
Cited
US4707747A
Cited
US4742369A
Cited
JPS61224082A
Cited
JPS61224081A
Cited
JPS61262887A
Cited
US4739159A
Cited
JPS625292A
Cited
US4785357A
Cited
US4868676A
Cited
US4704519A
Cited
US4816661A
Cited
US4792859A
Cited
US4802014A
Cited
US4866258A
Cited
US4827347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |