Patents Assigned to Sharp
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Publication number: 20080198393Abstract: In the case where an output value of a document reading section for at least any of R, G and B is out of a range between a first reference value and a second reference value due to a change in an output value of a reading device caused by an electrical noise, a change of supply voltage, etc. when a document is being read, a second color conversion table is created in accordance with the above change by expanding ranges in a first color conversion table, which ranges are around predetermined first and second reference values and included in regions of RGB color system associated respectively with predetermined tone values of Y, M and C. Using the second color conversion table thus obtained, a color conversion is carried out from the RGB color system into the YMC color system.Type: ApplicationFiled: February 14, 2008Publication date: August 21, 2008Applicant: SHARP KABUSHIKI KAISHAInventors: Michiko Fujiwara, Tomoe Matsuoka, Takashi Usui
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Publication number: 20080197990Abstract: An onboard display device in accordance with the present invention includes a display section (11) attached to an instrument panel of a vehicle. The section (11) has a second display area (11b) and a first display area (11a). The second display area (11b) shows at least the speed as vehicle condition images indicating the conditions of the vehicle. The first display area (11a) shows a navigation image and other secondary images. The display section (11) measures greater in width than in height with an aspect ratio of 7:3 or greater. The aspect ratio is the width/height ratio of a display area. The onboard display device allows for a visibility-improved simultaneous display of the secondary image, such as a navigation image, and the vehicle condition image, such as a speed display, which presents information on the conditions of the vehicle.Type: ApplicationFiled: April 15, 2008Publication date: August 21, 2008Applicant: SHARP KABUSHIKI KAISHAInventors: Takeshi YAMAMOTO, Aki MIAKE, Toshiya TAKAHASHI, Megumi ITOH, Mitsukazu OKUDA, Takeshi DOI, Takeo ABE
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Publication number: 20080198172Abstract: An image processing system including a processor configured to analyze a color image to determine a set of target colors and a database including factor profiles associated with a set of stored colors. The image processing system further includes a printer controller that assigns the factor profiles to the target colors according to a color space proximity of the target colors with the stored colors. The factor profiles represent a combination of factors including a gray level and a screen angle.Type: ApplicationFiled: February 16, 2007Publication date: August 21, 2008Applicant: SHARP LABORATORIES OF AMERICA, INC.Inventor: CHING-WEI CHANG
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Publication number: 20080199076Abstract: An image processing apparatus includes: a document type automatic classification section which determines whether input image data is image data for a text document or not; a newspaper document classification section which determines whether the input image data is image data for a newspaper document or not; a segmentation process section which identifies a page-background region in the input image data; and a color correction section for, if the input image data is classified as the text document and but not the newspaper document and if a page-background removal process is to be performed to the input image data, performing a first page-background removal process to the image data, but if the input image data is classified as the text document and the newspaper document, not performing the first page-background removal process to the image data. This makes it possible to prevent deterioration of visual sharpness of the text in the document image printed on the newspaper.Type: ApplicationFiled: February 13, 2008Publication date: August 21, 2008Applicant: Sharp Kabushiki KaishaInventors: Tomoe Matsuoka, Michiko Fujiwara, Tatsuya Tanaka, Norihide Yasuoka
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Patent number: 7415170Abstract: A data processing apparatus is provided for processing an image signal obtained from a solid-state image pickup device, in which a plurality of types of color filters are discretely provided on pixels, and a pixel to be interpolated and surrounding pixels thereof have image signals. The apparatus comprises an interpolation section for generating a missing color signal in the image signal of each pixel by interpolation using at least the image signals of the surrounding pixels among the image signals of the pixel to be interpolated and the surrounding pixels thereof. The interpolation section obtains an interpolation pattern, which is similar to a pattern of data values of the pixel to be interpolated and the surrounding pixels thereof, depending on uniformity and gradient of the image signals of the pixel to be interpolated and the surrounding pixels thereof, and performs interpolation depending on the interpolation pattern.Type: GrantFiled: June 15, 2004Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Katsuji Kimura, Takuji Yoshida
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Patent number: 7415256Abstract: The RSSI circuit of the present invention includes: an IF amplifier section, which includes multiple stages of serially connected differential amplifiers for amplifying, with use of a current source IA provided as a power source for amplification, an IF signal corresponding to a received signal; an RSSI amplifier section for converting into current a voltage amplitude of an absolute value signal outputted from the differential amplifiers of the IF amplifier section, using a current source IB provided as a power source for conversion, and adding and outputting the converted current; and a current voltage conversion circuit for converting into voltage the output current from the RSSI amplifier section, and outputting the converted voltage as a measurement voltage value. The RSSI amplifier section is set so that a current value of the RSSI amplifier section is inversely proportional to absolute temperature.Type: GrantFiled: August 25, 2005Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventor: Yoshiaki Nakano
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Patent number: 7413442Abstract: A learning support system has an information processing apparatus, a portable information terminal and a learning management server which are connected through a network. The information processing apparatus includes a second memory unit for storing first learning information which includes result of learning, and the portable information terminal includes a fourth memory unit for storing second learning information which includes result of learning at the portable information terminal, and the learning management server includes a fifth memory unit for storing the first learning information transferred from the information processing apparatus and the second learning information transferred from the portable information terminal. The information processing apparatus or the portable information terminal carries out continuous learning after learning information of other party is acquired through the fifth memory unit.Type: GrantFiled: July 29, 2002Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Toshiyuki Okunishi, Naoko Shinozaki, Kazuo Nishiura, Ichiko Sata, Yoji Fukumochi, Takeshi Kutsumi
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Patent number: 7414647Abstract: A camera apparatus of the present invention comprises: an optical system for projecting image light representing an image of a wide view field area toward a prescribed direction; an imaging section for obtaining, as an image, the image light projected by the optical system; and a holding member for integrally holding the optical system and the imaging section in a state where the curved mirror and the imaging section are opposed to each other.Type: GrantFiled: February 20, 2003Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Noritoshi Kakou, Masahiro Misawa
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Patent number: 7414694Abstract: A plurality of gate driver boards are bonded to a first side of a TFT substrate, and a wiring board made of a flexible printed wiring board is bonded between the gate driver boards. Then, a wiring disposed on the wiring board provides connection between adjacent gate driver boards. In the same manner, a plurality of data driver boards are bonded to a second side of the TFT substrate, and a wiring board made of a flexible printed wiring board is bonded between the data driver boards. Then, a wiring disposed on the wiring board provides connection between adjacent data driver boards.Type: GrantFiled: December 29, 2004Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventor: Yasutake Furukoshi
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Patent number: 7415218Abstract: In an image forming apparatus that uses a charging unit to charge a photosensitive drum, forms an electrostatic latent image by carrying out image exposure according to image information, and transfers to a paper the electrostatic latent image by developing the electrostatic latent image into a visible image using a developer so that the image information is presented, an exhaust duct 33 for exhausting air that contains ozone produced within a drum unit 30, which includes a photosensitive drum 3 and a charging unit 5, and a duct 32 for taking in air, which draws in fresh air, are provided within the drum unit 30 so that ventilation of the drum unit 30 can be carried out with excellent efficiency.Type: GrantFiled: July 5, 2005Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Takashi Hori, Kuniaki Nakano, Tomohiko Fujii, Yoshie Iwakura
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Patent number: 7413939Abstract: A method of fabricating a silicon-germanium CMOS includes preparing a silicon substrate wafer; depositing an insulating layer on the silicon substrate wafer; patterning and etching the insulating layer; depositing a layer of polycrystalline germanium on the insulating layer and on at least a portion of the silicon substrate wafer; patterning and etching the polycrystalline germanium; encapsulating the polycrystalline germanium with an insulating material; rapidly thermally annealing the wafer at a temperature sufficient to melt the polycrystalline germanium; cooling the wafer to promote liquid phase epitaxy of the polycrystalline germanium, thereby forming a single crystal germanium layer; and completing the CMOS device.Type: GrantFiled: June 10, 2005Date of Patent: August 19, 2008Assignee: Sharp Laboratories of America, Inc.Inventors: Sheng Teng Hsu, Jong-Jan Lee, Jer-Shen Maa, Douglas J. Tweet
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Patent number: 7414607Abstract: In a structure in which a plurality of signals related to each other are supplied to a driving circuit in such a manner that at least one of the signals is supplied also to the other circuit, the present invention prevents change of phase relation between the plural signals due to difference in wiring load, without directly processing the signals with higher power consumption. The first and second clock signals SCK1 and SCK2 are supplied to the first data signal line driving circuit SD1, while the first clock signal SCK1 is also supplied to the second data signal line driving circuit SD2 in parallel. The wirings 1 and 2 for the respective signals are adjusted to have equal wiring load with a dummy wiring 2 provided in the wiring 2, for solving uneven wiring load caused by difference of leading manner, the dummy wiring 2 constituting an additional capacitor section 7, together with a liquid crystal layer and a counter electrode.Type: GrantFiled: December 12, 2003Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Hajime Washio, Kazuhiro Maeda, Mamoru Onda
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Patent number: 7414483Abstract: A test circuit comprises a delay circuit 11 with controllable delay, a phase comparator circuit 12 for comparing the phases between the clock signal S0 and a delay clock signal S1 delayed from the clock signal S0 by the delay circuit 11, a meas counter 13 for counting the number of outputs of the prescribed comparison result from the phase comparator circuit 12, a signal switching circuit 14 for switching an input signal to the delay circuit 11 from the clock signal S0 to a delay signal satisfying an oscillation condition where the delay signal is received from the delay circuit 11 and developing a ring oscillator, and a frequency measuring circuit 15 for measuring an oscillation frequency when the ring oscillator is developed, the delay circuit 11 includes a variable delay circuit 17 with variable delay units connected to control the delay in each variable delay units independently.Type: GrantFiled: July 5, 2006Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventor: Yukihiro Shimamoto
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Patent number: 7414225Abstract: In a cooking heater having an automatically opening/closing door, when a lock determination unit detects that transmission of a torque of a driving unit is stopped by detecting an abrupt deceleration, which suggests that an obstacle to the movement of an opening/closing door that is opening/closing is detected, an operation instructing unit operates the opening/closing door in an opposite direction. Further, in the closing operation of the opening/closing door, when an opening/closing door position calculating unit detects the position ahead of a completely closed position at which the opening/closing door is completely closed by the action of an intermediate switch during the closing operation of the opening/closing door, the operating instruction unit lowers the closing speed of the opening/closing door of the operation instruction unit to prevent such a situation that a user's finger or hand is caught in the opening/closing door.Type: GrantFiled: December 16, 2005Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Akihiro Yoshidome, Masayuki Iwamoto
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Patent number: 7414969Abstract: A system and method are provided for periodic stream admission control in an IEEE 802.11 network. The method comprises: at an access point (AP), receiving a transmit specification, including a requested bandwidth, from a quality of service station (QSTA); computing Ttemp, the time equivalent to the requested bandwidth; computing Tall, the time already allocated; and, computing Tres, the total time available. IfTtemp+Tall<Tres, then the QSTA is admitted. If Ttemp+Tall>Tres, the QSTA is not admitted. Some aspects of the method further comprise: monitoring the bandwidth of the admitted QSTA. In another aspect, the method: determines the bandwidth required by the admitted QSTA; and, modifies the bandwidth of the admitted QSTA in response to the determined QSTA requirements. In one aspect, the method: monitors channel conditions; and, modifies the bandwidth of the admitted QSTA in response to the channel conditions.Type: GrantFiled: October 15, 2003Date of Patent: August 19, 2008Assignee: Sharp Laboratories of America, Inc.Inventor: Srinivas Kandala
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Patent number: 7415214Abstract: The image forming apparatus according to the present invention detects the amount of remaining toner by using (i) the result of calculation carried out by a toner supply amount calculation section based on an accumulated rotational time measurement section in a region where the amount of remaining toner is not less than a predetermined amount and toner supply is stabilized, (ii) the result of calculation carried out by a pixel count section in a region where the amount of remaining toner gets small and the amount of toner supply gets uneven, and (iii) the result of ATC carried out by a toner density control section. As a result, it is possible to exactly detect the amount of remaining toner without providing a special remaining toner detection device.Type: GrantFiled: August 21, 2006Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Hirofumi Sakita, Hirokazu Izumi, Hideyuki Nishimura, Hisaaki Kobayashi
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Patent number: 7414666Abstract: A portable camera-phone has a strobe consisting of LEDs emitting light with a determined quantity of light emission, as an auxiliary light source for image pick-up of an object by a camera. In an image pick-up mode, the light emission quantity is adjusted repeatedly until a total exposure value matches an optimal exposure value, based on a difference between a total exposure value of an image signal output from the camera with the light emission quantity determined last time and a total exposure value when emission is OFF. Therefore, in the image pick-up mode, two reference values are used for determining the light emission quantity to have the total exposure value match the optimal exposure value, and hence the light emission quantity can be determined with high accuracy. As a result, an optimal exposure level can be obtained with high accuracy.Type: GrantFiled: July 21, 2003Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventor: Kazunari Yamaguchi
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Patent number: 7414986Abstract: A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to the time-based bandwidth allocation; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC). Then, de-energizing devices in response to the polling schedule includes disengaging transmission and receiving functions in the minimum TXOP intervals between polling events, where the minimum TXOP interval is the inter-TXOP interval minus the TXOP jitter.Type: GrantFiled: July 31, 2003Date of Patent: August 19, 2008Assignee: Sharp Laboratories of America, Inc.Inventors: Srinivas Kandala, John Kowalski, Yoshihiro Ohtani, Shugong Xu
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Publication number: 20080192269Abstract: A system for color gamut mapping includes a control color list for mapping colors between a first color space and a second color space, and also including a processor. The processor is configured to identify a projected color defined in the first color space and map the projected color to a selected color included in the control color list. The selected color is associated with the projected color according to an ocular comparison of the projected color and a printout of the selected color rendered in the second color space.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Applicant: SHARP LABORATORIES OF AMERICA, INC.Inventor: CHING-WEI CHANG
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Patent number: D575248Type: GrantFiled: February 22, 2007Date of Patent: August 19, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshito Fujii, Hiroshi Gomi