Abstract:
An image-reading apparatus includes a light dividing unit that divides irradiated light so that a part of the light having a first wavelength is diffracted, and a part of the light having a second wavelength is transmitted; a first light measuring unit that measures an intensity of light entering into a first measuring area, and outputs first measurement information indicating the measured intensity; a second light measuring unit that measures an intensity of light entering into a second measuring area, and outputs second measurement information indicating the measured intensity; an image-forming unit that forms an image of a subject for reading in the first measurement area, and that forms a virtual image in the second measurement area using light diffracted by the light dividing unit; and a generation unit that corrects the first measurement information on the basis of the second measurement information.
Abstract:
An optical reader which reads image information on an original document by moving to the original document includes an illumination unit having at least one light source arranged on a substrate and illuminating the original document, a plurality of mirrors reflecting reflection light from the original document, a focusing lens focusing the reflection light from the original document reflected by the mirrors, and a photoelectric conversion element arranged in a focusing position of the focusing lens, a normal direction of an emission surface of the light source and a normal direction of a light-receiving surface of the photoelectric conversion element are the same direction, an original document reading position is set near an end portion of the optical reader in the normal direction.
Abstract:
An erecting equal-magnification lens array plate includes: a first lens array plate provided with a plurality of first lenses arranged on a first surface and a plurality of second lenses arranged on a second surface opposite to the first surface; and a second lens array plate provided with a plurality of third lenses arranged on a third surface and a plurality of fourth lenses arranged on a fourth surface opposite to the third surface. The first and second lens array plates form a stack such that the second surface and the third surface face each other. The erecting equal-magnification lens array plate receives light from a linear light source facing the first surface and forms an erect equal-magnification image of the linear light source on an image plane facing the fourth surface. An annular slope is formed around each second lens and each third lens.
Abstract:
A method of transferring communication between communication channels of differing bandwidth comprises establishing data communications on a first channel having a first bandwidth, establishing data communications on a second channel in response to a trigger indicating changes in the data to be communicated, wherein the second channel has a bandwidth providing resources different from the first bandwidth of the first channel. The method further comprises responding to the discontinuation of an in-progress mixed-media call that transmits data using a first and second media by initiating a second call not supporting the second media.
Abstract:
A scan bar for scanning a media sheet in an image scanning device and a method for scanning the media sheet in the image scanning device are disclosed. The scan bar comprises a sensor arrangement and a lens arrangement. The sensor arrangement comprises a first sensor region and a second sensor region. Light reflected from the media sheet is focused by the lens arrangement onto the sensor arrangement. Each of the first sensor region and the second sensor region is capable of generating image data corresponding to the media sheet from the focused light received from the lens arrangement for scanning the media sheet. The image data generated by the first sensor region is of relatively higher resolution than image data generated by the second sensor region.
Abstract:
The present invention relates to a method for encoding a signal of a wireless communication system, the method comprising dividing a current frame of the signal into a plurality of GOBs (Groups of Blocks) each having a certain size, determining whether a current GOB to be encoded of the plurality of GOBs is a first GOB of the current frame, calculating a control parameter value of the current GOB according to whether the current GOB is the first GOB of the current frame, controlling an encoding bit rate of the current GOB according to the control parameter value, and encoding the current GOB. Preferably, a hybrid method wherein an inter-frame GOB update method and an intra-frame GOB update method is used, so that a bit rate change between frames is reduced and data transmission of a channel is efficiently made to therefore provide a user with optimum image quality.
Abstract:
An image reader A1 according to the present invention comprises a pair of light source devices 3, a light guide member 4, a first and a second reflectors 7A and 7B, a plurality of light receiving elements 5, and a case 1. The image reader A1 further includes a first fitting contrivance 71 for positioning the first reflector 7A relative to the case 1 by inserting the first reflector 7A into the case 1 in the insertion direction z, a second fitting contrivance 72 for positioning the light guide member 4 relative to the case 1 by inserting the light guide member 4 into the case 1 in the insertion direction z, and a third fitting contrivance 73 for positioning the second reflector 7B relative to the case 1 by inserting the second reflector 7B into the case 1 in the insertion direction z.
Abstract:
To present a moving picture processing device having a user interface very easy to use when selecting part of moving pictures from multiple moving pictures. The moving picture processing device comprises a moving picture display unit for displaying whole or part of plural stored moving pictures sequentially, an input accepting unit for accepting an input for display of moving picture, a moving picture menu compiling unit for compiling a menu of moving pictures displayed when the input accepting unit accepts the input, and a menu display unit for displaying a menu of moving pictures compiled by the moving picture menu compiling unit.
Abstract:
A structure of a line lighting device permits a rod-like light guide to be attached to a case without rubbing against the case. An end portion of the rod-like light guide provided with a pin is inserted into an opening in a case main body and pushed down, thus making the pin engage with a recess in the case main body. At this time, a distal end of the rod-like light guide is inserted, to some extent, into an opening in a light emitting unit fixing portion. Subsequently, the rod-like light guide is pushed down and pivoted around the pin so as to be completely contained within the case main body. In this state, the distal end of the rod-like light guide is fitted into the opening and the end face of the rod-like light guide is flush with the outer side face of the light emitting unit fixing portion.
Abstract:
A contact image sensor module for scanning a document includes a light source, a photosensing array and a lens assembly. The light source emits a light beam to the document, thereby generating an optical signal. The photosensing array is used for converting the optical signal into an electronic signal. The lens assembly is used for focusing the optical signal reflected from the document and imaging the optical signal onto the photosensing array. The photosensing array includes a first photosensing element with a first width and a second photosensing element with a second width. The first width is greater than the second width.