Patents by Inventor Katsunobu Kimura
Katsunobu Kimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8427588Abstract: A TV receiver transmits video data from its tuner unit to its monitor unit via wireless transmission by using a channel shared with radar. When the tuner unit receives a program to be viewed, a recorder/player starts recording of the received program. When wireless transmission of the received program cannot be started on time at the program start time because of detecting an unused channel for wireless transmission, or when a radar wave in the shared channel is detected after starting wireless transmission and then wireless data transmission is interrupted, the recorder/player plays back on a time-shift basis the program recorded on the recording medium, and the program data played back is transmitted to the monitor unit. The TV receiver is capable of preventing the user from missing a program that he wants to view even when wireless data transmission is interrupted.Type: GrantFiled: April 23, 2009Date of Patent: April 23, 2013Assignee: Hitachi, Ltd.Inventor: Katsunobu Kimura
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Patent number: 8421788Abstract: It is an object of the present invention to provide an image display apparatus which enables cost reduction while being free from electromagnetic interference problems. A power supply circuit comprises, on a single circuit board, an AC inlet to which a power cord is connected from an external AC power supply, a filter circuit to which an inductance element is connected to suppress leakage of electromagnetic waves to the outside of the image display apparatus, and a switch which switches on/off an AC output supplied from the filter circuit. The circuit board of the power supply circuit is entirely covered by electromagnetic shielding means to shield electromagnetic waves. The electromagnetic shielding means is composed of, for example, a first shielding section which surrounds the lateral side of the circuit board and a second shielding section which covers the upper side of the circuit board. The second shielding section is formed of a part of the flat section of a rear cover of the image display apparatus.Type: GrantFiled: November 27, 2006Date of Patent: April 16, 2013Assignee: Hitachi, Ltd.Inventors: Hidenao Kubota, Yuzo Nishinaka, Yuki Iwane, Yutaka Yamada, Katsunobu Kimura
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Patent number: 8290344Abstract: In a television receiver including a video recording/reproducing apparatus therein, since reduction is quick in a recording space thereof if recording the high-definition television broadcast signal as it is, even including a recording medium, such as, a HDD of large capacity, for example, video, audio and caption data are extracted within a video extract portion 3, an audio extract portion 4, a caption extract portion 5 from a MPEG2-TS (Transport Stream) signal (TS=video+audio+caption data+BML (Broadcast Markup Language)+other data), but except for the BML data. And, those data extracted are recorded in a recording/reproducing portion 7.Type: GrantFiled: December 20, 2006Date of Patent: October 16, 2012Assignee: Hitachi, Ltd.Inventors: Katsunobu Kimura, Yasushi Naito, Satoshi Takahashi, Satoshi Iimuro
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Patent number: 8223167Abstract: An RGB signal from an input terminal is supplied to a triple over-sampling/sub-pixel control processing unit and a brightness signal generating circuit in which a brightness signal is generated. A brightness edge detection/judgment unit detects an edge from this brightness signal, judges the kind of the edge, fetches a coefficient select signal corresponding to the judgment result from a memory and supplies the signal to the control processing unit. A tap coefficient corresponding to this coefficient select signal is set in the control processing unit and a triple over-sampling processing is executed for each of RGB. For edge parts, R and B sub-pixels the timings of which are displaced by ±? pixel from the input R and B sub-pixels and the pixel gravitys of which are displaced by ±? or ±? pixel in accordance with the kind of the edge are generated.Type: GrantFiled: January 23, 2008Date of Patent: July 17, 2012Assignee: Hitachi, Ltd.Inventors: Masahiro Ogino, Katsunobu Kimura, Mitsuo Nakajima, Gen Endou
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Patent number: 8111263Abstract: A video display device that allows the color temperature of the signals in white color attributes having high luminance and low chroma saturation to be corrected with high precision is provided with a color temperature correction method so as to visually obtain a desirable white color on display. In some embodiments, the signal processing circuit can include an A/D converter to convert video signals into digitalized signals, a matrix circuit to convert the digitalized signals into luminance signals and at least two color difference signals, a hue conversion circuit to obtain hue signals from the color difference signals, a hue correction circuit to correct hue signals, a chroma saturation conversion circuit to obtain chroma saturation signals from color difference signals, a chroma saturation correction circuit to correct chroma saturation signals and a color temperature correction circuit to perform the color temperature correction on the respective hue and chroma saturation signals.Type: GrantFiled: March 17, 2009Date of Patent: February 7, 2012Assignee: Hitachi, Ltd.Inventors: Katsunobu Kimura, Takaaki Matono, Haruki Takata, Takeshi Sakai, Wataru Kato
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Patent number: 8111973Abstract: The present invention provides a television apparatus that can reproduce and show a program when the program is stopped without a user performing troublesome operations even when the user is occupied with a sudden phone call or an unexpected visitor while he/she is watching television. A volume comparator starts recording of the program, which is currently being watched, by using a recording apparatus when a set volume value is lower than a threshold value or is set to a sound cancelling mode. Also, when a newly set volume value is higher than the threshold value or the sound cancelling is released, the volume comparator stops the display of the program that is currently being watched and starts reproducing display of the recorded program by returning to the recording start time point.Type: GrantFiled: December 9, 2008Date of Patent: February 7, 2012Assignee: Hitachi, Ltd.Inventors: Chiharu Ishino, Katsunobu Kimura
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Publication number: 20110285764Abstract: A video display device is provided with a backlight for projecting light onto a display panel composed of plural backlight blocks two-dimensionally arranged, for controlling the intensity of light for each of the backlight blocks by local dimming control. In the video display device, video, such as letterbox video, having a black blank portion and a video portion is displayed so as to nearly align a boundary between the video portion and the blank portion with a boundary between the backlight blocks. Also, reduced display is performed using only a portion of the backlight blocks in both horizontal and vertical directions while nearly aligning the boundary between the video portion and the blank portion with the boundary between the backlight blocks.Type: ApplicationFiled: April 22, 2011Publication date: November 24, 2011Inventors: Katsunobu KIMURA, Nobuo Masuoka
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Publication number: 20110255010Abstract: Display embodiments including arrangements wherein a waiting condition of a display apparatus includes a first waiting condition, and a second waiting condition being shorter in a starting time, from time when the operation is made for turning a power source ON until time when the image is displayed on a display portion, and smaller in a power consumption, comparing to those of the first waiting condition. A controller portion changes the waiting condition of the display apparatus into the second waiting condition, when a sensor detects the presence of a human being while under the first waiting condition, and changes the waiting condition of the display apparatus into the first waiting condition, when no operation is made for turning a power source ON, for a predetermined time period, after changing the waiting condition into the second waiting condition.Type: ApplicationFiled: June 15, 2011Publication date: October 20, 2011Inventors: Takeshi SAKAI, Katsunobu Kimura
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Patent number: 7990480Abstract: Within a broadcast receiving apparatus, mounting therein two (2) pieces of tuner units, each being receivable at least three (3) kinds of broadcasting signals, and being receivable plural numbers of broadcasting signals, simultaneously, the tuner units, each capable to receive an analog terrestrial broadcasting signal, digital BS/CS broadcasting signals, and a digital terrestrial broadcasting signal, are mounted within a housing 11 of the broadcast receiving apparatus 10, wherein a main tuner 110 and a sub-tuner 120 are mounted on both surfaces of a substrate 100, directing upper and lower surfaces thereof into the same direction, and distributors 130 and 140 for distributing antenna inputs are attached between input terminals 111, 112, 121 and 122 of those tuner units, bridging over both surfaces of the substrate, and thereby providing a technology for mounting or packaging the tuner units, with achieving small-sizing and thin-sizing thereof.Type: GrantFiled: November 27, 2006Date of Patent: August 2, 2011Assignee: Hitachi, Ltd.Inventors: Yasushi Naito, Katsunobu Kimura, Katsunori Mochizuki
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Patent number: 7916214Abstract: A picture display technique carries out an adjustment of image quality of an inputted picture signal in response to a type of the inputted picture signal, e.g., a type of a first picture signal into which a second picture signal, having fewer scanning lines than that of the first picture signal, is converted, and an original type of the first picture signal, and then displays a picture of an adjusted picture signal on a display device. Further, the adjustment of the picture quality may include at least one of hue correction of the inputted picture signal in a certain hue range and chroma correction of the inputted picture signal in a certain chroma range. The adjustment of the picture quality may also include a contour correction of the inputted picture signal.Type: GrantFiled: June 1, 2006Date of Patent: March 29, 2011Assignee: Hitachi, Ltd.Inventors: Katsunobu Kimura, Mitsuo Nakajima, Yoshiaki Mizuhashi, Haruki Takata, Masaaki Matsukawa
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Publication number: 20100231807Abstract: A display apparatus, including: a display portion to display an image based upon a digital broadcasting signal received by a receiving portion; a main control portion to control each portion within the display apparatus; and a sub-control portion to control a supply of electronic power within the display apparatus, responsive to a signal wherein a waiting condition of the display apparatus in which an image is not displayed after stopping a supply of the electronic power to the display portion, is controlled by the sub-control portion, to be placeable into either of a first or second waiting condition, the first waiting condition is smaller in consumption of electronic power and the sub-control portion and the main control portion are controlled not to be set in operation, under the first waiting condition, while both are controlled to be set in operation, under the second waiting condition.Type: ApplicationFiled: May 27, 2010Publication date: September 16, 2010Inventors: Takeshi Sakai, Katsunobu Kimura
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Patent number: 7730507Abstract: For providing a broadcast receiving apparatus and a method for staring thereof, suppressing electric power consumption therein, under waiting condition, irrespective of mounting a constituent part requiring a long time for starting up, according to the present invention, within a broadcast receiving apparatus, detection is made, always, upon an approach of a human being, by means of a human sensor 40 and a sub-CPU 60, under the condition that a power plug 75 is inserted into a commercial electric power source, so as to control supply of electric power form a main electric power source unit to each of portions of that apparatus. Thus, prior to startup of that apparatus through a main switch 22 and a remote controller 30, a constituent portion (i.e.Type: GrantFiled: May 14, 2007Date of Patent: June 1, 2010Assignee: Hitachi, Ltd.Inventors: Takeshi Sakai, Katsunobu Kimura
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Publication number: 20100060801Abstract: A TV receiver transmits video data from its tuner unit to its monitor unit via wireless transmission by using a channel shared with radar. When the tuner unit receives a program to be viewed, a recorder/player starts recording of the received program. When wireless transmission of the received program cannot be started on time at the program start time because of detecting an unused channel for wireless transmission, or when a radar wave in the shared channel is detected after starting wireless transmission and then wireless data transmission is interrupted, the recorder/player plays back on a time-shift basis the program recorded on the recording medium, and the program data played back is transmitted to the monitor unit. The TV receiver is capable of preventing the user from missing a program that he wants to view even when wireless data transmission is interrupted.Type: ApplicationFiled: April 23, 2009Publication date: March 11, 2010Applicant: Hitachi, LtdInventor: Katsunobu KIMURA
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Publication number: 20090244107Abstract: A video display device that allows the color temperature of the signals in white color attributes having high luminance and low chroma saturation to be corrected with high precision is provided with a color temperature correction method so as to visually obtain a desirable white color on display. In some embodiments, the signal processing circuit can include an A/D converter to convert video signals into digitalized signals, a matrix circuit to convert the digitalized signals into luminance signals and at least two color difference signals, a hue conversion circuit to obtain hue signals from the color difference signals, a hue correction circuit to correct hue signals, a chroma saturation conversion circuit to obtain chroma saturation signals from color difference signals, a chroma saturation correction circuit to correct chroma saturation signals and a color temperature correction circuit to perform the color temperature correction on the respective hue and chroma saturation signals.Type: ApplicationFiled: March 17, 2009Publication date: October 1, 2009Applicant: Hitachi, Ltd.Inventors: Katsunobu Kimura, Takaaki Matono, Haruki Takata, Takeshi Sakai, Wataru Kato
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Publication number: 20090153442Abstract: According to the invention, by forming at least every two frames having video contents corresponding to each frame of a video signal, for example, a frame rate of movie contents whose frame rate is equal to 24 Hz is converted into 48 Hz. A plurality of subfields (SFs) corresponding to each frame of the conversion signal are divided into first and second division SF groups. Each division SF group is further classified into an upper SF group on the large weight side and a lower SF group on the small weight side. The weights of the upper SF groups are made symmetrical between the first and second division SF groups. The weight of each SF belonging to the lower SF group in the first division SF is set to be larger than that in the second division SF.Type: ApplicationFiled: October 2, 2008Publication date: June 18, 2009Applicant: Hitachi, Ltd.Inventors: Katsunobu KIMURA, Takaaki Nishiseto, Yuichiro Kimura, Kiyoshi Takata, Hideaki Ohki
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Publication number: 20090148135Abstract: The present invention provides a television apparatus that can reproduce and show a program when the program is stopped without a user performing troublesome operations even when the user is occupied with a sudden phone call or an unexpected visitor while he/she is watching television. A volume comparator starts recording of the program, which is currently being watched, by using a recording apparatus when a set volume value is lower than a threshold value or is set to a sound cancelling mode. Also, when a newly set volume value is higher than the threshold value or the sound cancelling is released, the volume comparator stops the display of the program that is currently being watched and starts reproducing display of the recorded program by returning to the recording start time point.Type: ApplicationFiled: December 9, 2008Publication date: June 11, 2009Applicant: Hitachi, Ltd.Inventors: Chiharu Ishino, Katsunobu Kimura
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Patent number: 7512321Abstract: A device enabling simultaneous recording and playback allows commercials to retain their advertisement function even if the commercials are skipped over during a playback process. By digital watermarking, CM-substitute data is embedded in program data among video signals broadcasted from a broadcast station. CM-substitute data is to present information such as a particular sponsor name and commodity name on display. The video recording/playback device includes a randomly accessible storage unit and has a simultaneous recording/playback capability. If commercial video is skipped over and is not rendered by playback, the CM-substitute information is superimposed on the rendered video of the program associated with the commercial. Thus, the commercial advertisement function can be retained.Type: GrantFiled: June 25, 2003Date of Patent: March 31, 2009Assignee: Hitachi, Ltd.Inventors: Yasutaka Tsuru, Mitsuo Nakajima, Yoshiaki Mizuhashi, Katsunobu Kimura, Masaaki Matsukawa
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Publication number: 20090002550Abstract: An image display apparatus, which converts a video signal in a first video signal format into a video signal in a second video signal format causing an increase in dynamic range, and displays the video signal in the second video format, includes a video signal conversion circuit configured to receive the video signal in the first video signal format and to produce the video signal in the second video signal format, a drive circuit configured to drive an image display panel according to the video signal in the second video signal format, and a signal processing module including signal processing circuits configured to perform signal processing necessary to drive the drive circuit, wherein the video signal conversion circuit is situated inside the signal processing module.Type: ApplicationFiled: January 31, 2008Publication date: January 1, 2009Applicant: Hitachi, Ltd.Inventors: Yuichiro Kimura, Yutaka Chiaki, Katsunobu Kimura, Hideaki Ohki, Masaya Tajima, Kiyoshi Takata
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Patent number: 7430021Abstract: A picture quality correction circuit is provided which performs contour correction by grasping features of an input video signal accurately. The correction circuit has a filter circuit for extracting contour components in an inputted video signal, a contour component nonlinear processor for changing amplitudes of the contour components extracted by the filter circuit, an adder for adding outputs of the contour component nonlinear processor and the input video signal, a histogram detection circuit for detecting a histogram of the contour components extracted by the filter circuit, and a control circuit for controlling contour emphasis quantities for the contour component nonlinear processor in accordance with the results of detection by the histogram detection circuit.Type: GrantFiled: February 22, 2005Date of Patent: September 30, 2008Assignee: Hitachi, Ltd.Inventors: Masahiro Nako, Yasutaka Tsuru, Ryo Hasegawa, Katsunobu Kimura, Hiroshi Aoki
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Publication number: 20080181312Abstract: For providing television receiver apparatus and a video displaying method for that, i.e., suppressing deterioration of picture quality when conducting a frame-rate conversion on a video signal while piling up an OSD picture thereon, within the television receiver apparatus, picture quality correction is made on an input video signal including the moving picture therein. After inserting the OSD picture within an OSD inserter (OSD processor) unit 8, a frame-rate conversion is conducted within a frame-rate converter unit 9.Type: ApplicationFiled: December 18, 2007Publication date: July 31, 2008Applicant: Hitachi Ltd.Inventor: Katsunobu Kimura