Patent
Variable reflectance cover
David M. Payne
- 16 Jul 2001
12
TL;DR: A variable reflectance cover for a scanning system as mentioned in this paper comprises a backing moveable through a plurality of positions, which varies the reflectance of the cover, and magnetic louvers are provided for changing the reflectivity of the covers.
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Abstract: A variable reflectance cover for a scanning system. The cover comprises a backing moveable through a plurality of positions. Moving the backing through the plurality of positions varies the reflectance of the cover. In one embodiment, the backing is an endless rotatable belt. In a second embodiment, the backing is a removable panel having a first side with a first reflectance and a second side with a second reflectance. In yet a third embodiment, the backing includes polarizers placed adjacent to a reflective panel. Rotating one polarizer relative to another varies the reflectance of the cover. In another embodiment, magnetic louvers are provided for changing the reflectivity of the cover.
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Citations
Patent
Image sensor unit and image reader
Shuuichi Shimoda
- 28 Dec 2011
TL;DR: In this paper, a banknote is read from a rod lens array with white reference plates placed at opposite ends of a rod array and cover respective areas external to an image region across the banknote.
37
Patent
Image sensor unit and image reading apparatus
Shuuichi Shimoda,Tomoyuki Horiguchi,Hidemasa Yoshida,Akifumi Fujiwara,Hidehisa Takahashi +4 more
- 09 Aug 2012
TL;DR: In this paper, a light guide has an incident surface on which the light emitted by the light emitting module is incident, a reflection surface that reflects the light having entered the light guide through the incident surface, and an emission surface from which the reflected by the reflection surface is emitted toward the bill.
33
Patent
Image reading unit and image reading apparatus having the same
Atsushi Miyahara
- 30 Mar 2005
TL;DR: An image reading unit which is capable of optimally reading images from both reflective originals and transparent originals is described in this article. But the work is limited to the case of a single rod array, where the first rod lens array collects reflected light from a reflective original.
15
Patent
Structures and methods thereof for scanner with two CCD arrays
Jin-Chun Yang,Harn-Jou Yeh +1 more
- 22 Sep 2006
TL;DR: In this paper, the structure and methods for a scanner with two CCD arrays, which respectively capture two independent object images in one scan action, are provided. Three functions: image recovery, double resolution, and high dynamic range can be achieved for the transparent media and the reflective media.
13
Patent
Image sensor unit and image reading apparatus using the same
Mitsuyoshi Kisara,Hideo Kiyota,Shuuichi Shimoda,Hidemasa Yoshida,Hidehisa Takahashi +4 more
- 13 Sep 2013
TL;DR: An image sensor unit includes a light source, a light guide, a rod lens array, and a sensor substrate as discussed by the authors, where positioning sections are provided on an opposite side of the light emitting surface of the source and at a part of the frame which is disposed at the opposite side.
9
References
Patent
Vertically oriented window document scanner
Brian David Griffin
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TL;DR: In this article, a two-dimensional scanner with a cabinet housing having a vertically inclined angled side with a rectangular transparent window for a twodemensional scanning means is presented, where a document support stationed by the window's external lower edge prevents a document from sliding off the window.
29
Patent
Platen cover for a digital document scanner with electrically switchable reflectance modes
Ned J. Seachman,Leon C. Williams +1 more
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TL;DR: In this paper, a system and method digitally scans a document using a high reflectance mode and a low reflectance modes is presented. But, the system is not suitable for high-resolution images.
26
Patent
Exposure control system
Samir Basu,Gerald J. Maguire +1 more
- 28 Oct 1974
TL;DR: An automatic exposure system for a copying machine which includes a scanning optical system having a prescan period, comprising a lamp illumination control to receive light reflected from an original document to be copied, a lamp lighting control circuit and a synchronizing circuit, is described in this article.
24
Patent
Removable bicolored platen covers for image capture devices
David L. Salgado
- 22 Nov 1999
TL;DR: In this paper, a platen cover has a plurality of retractable platen covers that can be exposed, such as matte, gloss, reflective and the like, which can be used to improve the quality of an image capture device.
13
Patent
Method and apparatus for securing a flatbed scanner carriage
Gilpin Kenneth J
- 12 Apr 2001
TL;DR: In this paper, a system and method for securing a moveable scanner device within a scanning system comprises a housing having a transparent platen provided thereon, and a scanner device is operatively associated with the housing and is moveable along a displacement path.
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