Patents Represented by Attorney, Agent or Law Firm Dike Bronstein Roberts & Cushman, IP Group, Edwards &
Angell LLP
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Patent number: 6577357Abstract: In the display device (10), at least one of a scanning line (2) and a signal line (3) is a multi-layer wiring including first and second conductive layers (3a, 3b), and the multi-layer wiring (3) includes a low-stacked region (3′) where the second conductive layer (3b) is not formed.Type: GrantFiled: March 28, 2001Date of Patent: June 10, 2003Assignee: Sharp Kabushiki KaishaInventor: Kazutoshi Kida
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Patent number: 6566917Abstract: A sampling circuit includes a first sample hold means having a sample hold switch whose one terminal receives an input signal and a sample hold capacitor whose one terminal is connected to the other terminal of the sample hold switch, an amplifier circuit whose input terminal is connected to the other terminal of the sample hold switch and a horizontal selection switch whose one terminal is connected to an output terminal of the amplifier circuit and the other terminal of which is connected to a horizontal signal line. The output terminal of the amplifier circuit is connected to one terminal of a conduction control switch, and a first constant current load is connected to the other terminal of the conduction control switch. The conduction control switch is turned on when the sample hold switch is on and the horizontal selection switch is off.Type: GrantFiled: September 20, 2001Date of Patent: May 20, 2003Assignee: Sharp Kabushiki KaishaInventor: Takashi Watanabe
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Patent number: 6567199Abstract: A digital optical transmission apparatus includes a modulation portion for modulating data to be transmitted in an ASK modulation method, and an E/O modulation portion for converting an electrical signal output from the modulation portion into an optical signal having a base band component with a constant DC level. DC-biased or FSK-biased may be employed as a method of making constant the DC level of the base band component.Type: GrantFiled: January 14, 1999Date of Patent: May 20, 2003Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Nakaoka, Hiroshi Uno, Yoshihiro Ohtani
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Patent number: 6535191Abstract: A liquid crystal display device of the present invention includes: a main substrate having a main electrode; a counter substrate having a counter electrode; a liquid crystal material interposed between the main substrate and the counter substrate; and a control section for controlling a response start time of the liquid crystal material by a potential difference between a main electrode voltage that is applied to the main electrode during one frame and a counter electrode voltage that changes in a substantially continuous manner during the one frame, and for changing a transmissivity of the liquid crystal display device based on a magnitude of the main electrode voltage.Type: GrantFiled: March 13, 2000Date of Patent: March 18, 2003Assignee: Sharp Kabushiki KaishaInventor: Koichi Miyachi
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Patent number: 6515774Abstract: A document-image reading device that can analyze a speed fluctuation state of a scanner when scanning an image in the feed direction by separately extracting speed fluctuation components by reading a change in density of reference scale lines and, on the basis of the analysis result, prevents the occurrence of an image blur that may be resulting from unstable factors of a driving mechanism.Type: GrantFiled: May 16, 2002Date of Patent: February 4, 2003Assignee: Sharp Kabushiki KaishaInventors: Takao Horiuchi, Shigeru Watase, Jun Morimoto
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Patent number: 6507415Abstract: An image processing device includes a scanner, which reads a plurality of images and inputs them as multivalue digital image data; a matching data producing section which, based on the inputted multivalue image data, produces matching data for joining the respective inputted images; a post-processing section, which binarizes the image data of each image inputted by the scanner; a joining section, which synthesizes the respective inputted images into a single image by joining the binary data produced by the post-processing section, which corresponds to the image data of the respective inputted images, on the basis of the matching data produced by the matching data producing section; and a printer for outputting the image joined by the joining section. Thus an image processing device can be provided which is capable of joining any type of image, whether from written characters, halftone dot, or photographic originals, and of performing this joining processing at high speed.Type: GrantFiled: October 29, 1998Date of Patent: January 14, 2003Assignee: Sharp Kabushiki KaishaInventors: Masanori Toyoda, Akihiko Iwasaki, Atsushi Narukawa, Yoshiyuki Nakai, Masakiyo Okuda, Takeshi Murakami, Takashi Nishimachi
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Patent number: 6497240Abstract: To provide an ultrasonic cleaning device (1) that ensures stable operation of a vibrating element for generating ultrasonic without a complex structure and distribution of a great quantity of a cleaning liquid and (2) that is capable of cleaning upper and lower surfaces of a cleaning target easily, an ultrasonic cleaning section of the device is provided with an upper cleaning-liquid-supply nozzle and a lower cleaning-liquid-supply nozzle for projection of ultrasonic. The upper cleaning-liquid-supply nozzle supplies an upper surface cleaning liquid to an upper surface of a glass substrate. The lower cleaning-liquid-supply nozzle supplies the lower surface cleaning liquid to a lower surface of the substrate in a form of shower to which ultrasonic has been projected.Type: GrantFiled: April 21, 2000Date of Patent: December 24, 2002Assignee: Sharp Kabushiki KaishaInventors: Kazuki Kobayashi, Toshiaki Muratani, Hiroto Yoshioka
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Patent number: 6498713Abstract: A low-voltage, low-inductance device for storing electrical charge in a snubber circuit and a method of minimizing inductance in the snubber circuit using the device, wherein the device includes a plurality of extended electrodes, in parallel or series, that are joined to a positive conductor terminal at one end spray and at a negative conductor terminal at the other end spray so that end sprays of adjacent extended electrodes are alternately joined to the positive and negative conductor terminals. Accordingly, current flowing though adjacent extended electrodes is of substantially equal intensity but different in direction. As a result, inductance produced effectively cancels out that of adjacent extended electrodes.Type: GrantFiled: March 16, 2001Date of Patent: December 24, 2002Assignee: SatCon Technology CorporationInventors: Phillip A. Sanger, Lyon Mandelcorn, Leban E. Lesster, Frank A. Lindberg
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Patent number: 6488170Abstract: A container and a lid for closing it are disclosed. The container has an open end, a closed end and a peripheral sidewall therebetween. The peripheral sidewall has a rolled rim at the edge thereof adjacent the open end of the container. The lid has a dome-shaped structure. A peripheral rim curl is provided for locking the lid to the rolled rim of the container to close the open end. The lid also has a central region and a plurality of arched struts extending radially between the central region and the peripheral rim curl. At least one tabular hinged drinking region is provided in the lid. The tabular hinged drinking region is structured and arranged to be depressed into the container, thereby providing at least one flow-through opening in the tabular hinged drinking region of the lid. Preferably, the depressed tabular hinged drinking region is self-locking.Type: GrantFiled: November 17, 2000Date of Patent: December 3, 2002Assignee: Tim Johnson Design, Inc.Inventor: Timothy C. Johnson
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Patent number: 6481902Abstract: A light transmission device includes an optical fiber cable having a plug and a holder having a plug insertion hole into which the plug of the optical fiber cable is inserted, wherein an engaging projection is provided on an outer surface of the plug, an engaging groove corresponding with the projection is provided on a wall of the plug insertion hole, and a shutter for closing the plug insertion hole is provided, the shutter being opened and closed in the inside of the plug insertion hole by turning about a pivot extending substantially vertically or parallel to a line composed of an optional point in the groove and a point on a wall of the plug insertion hole rightly opposite to the optional point.Type: GrantFiled: February 23, 2001Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Takashi Takaoka, Mitsuhisa Ikuta
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Patent number: 6483598Abstract: An image processing portion for conducting the specified processing of an image to be reproduced by an image forming portion based on the processed image data is constructed as a single control portion. Consequently, the development of a variety of digital copying machines requires preparation of specially designated control boards according to levels of the products. This makes machines expensive and requires users to pay a considerable initial cost.Type: GrantFiled: July 26, 2001Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Atsushi Narukawa, Fuminori Miyoshi, Kenichi Maeda, Hidenori Ohnishi
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Patent number: 6476786Abstract: There is provided a liquid crystal display device capable of displaying every frame an image that is not influenced by the previous frame at all by removing an afterimage attributed to a change in dielectric constant at the time of response of liquid crystals. A scanning line GL1 is made to have a voltage of +15 V so as to turn on first and third TFT elements 1 and 3 constructed of an n-type MOS transistor and turn off a second TFT element 2 constructed of a p-type MOS transistor. A signal voltage Vs is applied to a memory capacitance Cm via the first TFT element 1, charging the memory capacitance Cm up to the signal. voltage Vs. Simultaneously with this operation, electric charges of a pixel capacitance Cp are discharged via the third TFT element 3. The other scanning lines GL2, GL3, . . .Type: GrantFiled: June 15, 2000Date of Patent: November 5, 2002Assignee: Sharp Kabushiki KaishaInventor: Koichi Miyachi
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Patent number: 6477282Abstract: The image forming device according to the present invention performs resolution conversion processing or scaling processing of a binary image and outputs a processed image. The present image forming device is provided with an edge detecting section, which, during resolution conversion or scaling of the binary image, detects edges of the image and detects lengths and shapes of the edges, and with an interpolated/skipped line producing section, which performs resolution conversion processing or scaling processing based on the lengths and shapes of edges detected by the edge detecting section.Type: GrantFiled: December 16, 1998Date of Patent: November 5, 2002Assignee: Sharp Kabushiki KaishaInventors: Masaaki Ohtsuki, Mitsuru Tokuyama, Mihoko Tanimura, Masatsugu Nakamura
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Patent number: 6472761Abstract: An object of the present invention is to provide a solid-state image pickup apparatus capable of reducing man-hours for bonding, improving bonding quality, and being readily integrated into peripheral devices, and a manufacturing method thereof. The solid-state image pickup apparatus of the present invention includes a transparent substrate having a projecting electrode connection electrode terminal, and a solid-state image pickup device in which each first projecting electrode corresponding to the projecting electrode connection electrode terminal is formed on each electric signal I/O terminal, the transparent substrate and the solid-state image pickup device being bonded by face-down packaging. The projecting electrode connection electrode terminal and each first projecting electrode are connected by ultrasonic bonding. On electrode terminals of the transparent substrate are respectively formed second projecting electrodes.Type: GrantFiled: January 22, 2001Date of Patent: October 29, 2002Assignee: Sharp Kabushiki KaishaInventor: Masao Nakamura
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Patent number: 6469292Abstract: A photodetector includes a photoelectric conversion layer for performing an insulator-metal transition by receiving light, and a pair of electrodes provided opposite to each other in contact with the photoelectric conversion layer, between which a voltage is applied. In the photodetector, the pair of electrodes are arranged on the photoelectric conversion layer such that a region of the photoelectric conversion layer which performs the insulator-metal transition and a region to which the voltage is applied through the pair of electrodes are substantially coincident with each other.Type: GrantFiled: April 25, 2000Date of Patent: October 22, 2002Assignee: Sharp Kabushiki KaishaInventors: Yasushi Ogimoto, Kenji Nakanishi, Kunio Kojima
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Patent number: 6466242Abstract: An information processing apparatus having a schedule management function includes a display section for displaying temporal axes of at least two different cities on a schedule display screen in accordance with a time difference therebetween; a pointing section for pointing to each of the temporal axes of the different cities displayed by the display section; and an input section for inputting a time and a city of the temporal axis, which are pointed to by the pointing section, as a schedule.Type: GrantFiled: April 16, 1999Date of Patent: October 15, 2002Assignee: Sharp Kabuhsiki KaishaInventors: Akihiro Kumata, Kiyoshi Suzuki
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Patent number: 6456667Abstract: A method of coding a signal for digital optical communication using a symbol formed of N slots [s1, s2, s3, . . . sN], wherein si is either 0 or 1 where i is an integer and l≦i ≦N is provided. The method includes the steps of determining a plurality of symbols which satisfy the following expression, wherein k is an arbitrary positive integer, and p1, q1, p2, q2, . . . , pk and qk are integers which satisfy 1≦p1<q1, 1≦p2<q2, . . . , 1≦pk<qk, and p1/q1<p2/q2<. . .Type: GrantFiled: February 14, 2001Date of Patent: September 24, 2002Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Ohtani, Hiroshi Uno, Yutaka Ikeda
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Patent number: 6456359Abstract: A PBS for guiding light from a light source to a DMD as light modulating means as well as for guiding light modulated by the DMD to photographic paper is provided on an optical path between the light source and the DMD. The DMD is arranged so that light from the PBS perpendicularly enters itself, and is equipped with a plurality of micromirrors which swing in accordance with image data. This arrangement allows optical components to be disposed so that an angle of incidence of light with respect to the DMD is 0°, thereby enabling tight layout of the light source section. In other words, there is no need to spread the optical components around the light modulating means like in the conventional cases where an angle of incidence with respect to the light modulating means is more or less required.Type: GrantFiled: August 2, 1999Date of Patent: September 24, 2002Assignee: Noritsu Koki Co, LTDInventors: Hidetoshi Nishikawa, Kazuya Tsukamoto
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Patent number: 6452651Abstract: The invention provides a liquid crystal display having high reliability, which is excellent in terms of optical characteristics, heat resistance, and shock resistance, wherein a liquid crystal display consisting of a cholesteric liquid crystal, a chiral nematic liquid crystal or a liquid crystal 1 layer, being a combination thereof, which is roughly pillar-like and polygonal in section or has a roughly pillar-like form enclosed by a closed curve, and divided by said polymer network into areas whose minimum diameter measured by vernier calipers is 5 &mgr;m and whose maximum diameter measured by vernier calipers is 100 &mgr;m, is obtained by polymer networks 4 formed by polymerization of monomer, so that sufficient reflection can be obtained from the liquid crystal 1 without being optical scattering.Type: GrantFiled: September 14, 2000Date of Patent: September 17, 2002Assignee: Nanox CorporationInventors: Manabu Takami, Masaki Kitaoka, Ayumi Sasaki, Tomio Wada
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Patent number: 6453132Abstract: Icons (displayed in the pictorial outline display area and in the finished output style display area) for displaying the conditions in accordance with the input of conditions through setting keys(keys displayed in setting key display area) integrally display multiple number of conditions input through setting keys in a multiple number of setting frames. A condition pictorially represented corresponding to the setting key arranged in the input-active setting frame is made visually distinguishable from that pictorially represented corresponding to the setting key arranged in an input-inactive setting frame.Type: GrantFiled: March 21, 2001Date of Patent: September 17, 2002Assignee: Sharp Kabushiki KaishaInventor: Kaoru Ishikura