Patents by Inventor Tatsuo Yamauchi
Tatsuo Yamauchi 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).
-
Patent number: 6456333Abstract: The object of the present invention is to provide a TV system discriminator capable of being applied to when the inputted TV signal is an analog signal or a digital signal, and capable of accurately discriminating between TV systems with small differences in line number and field number. In order to achieve the above object, the TV system discriminator of the present invention comprises a separator for extracting a synchronized signal for a TV signal inputted in accordance with one of a plurality of TV systems, a phase difference sensor for sensing a phase difference of this separated synchronized signal and a prescribed reference signal, and a phase difference displacement discriminator for discriminating a TV system corresponding to an inputted TV signal based on the direction of temporal displacement of this phase difference.Type: GrantFiled: June 3, 1999Date of Patent: September 24, 2002Assignee: Oki Electric Industry Co, Ltd.Inventors: Yuzuru Masuya, Tatsuo Yamauchi
-
Patent number: 6307594Abstract: A coded signal synchronizing device includes a first and a second signal synchronizing circuit. The first and second signal synchronizing circuits respectively feed a first and a second coded signal to a coded signal processor while synchronizing them to each other in accordance with a reference synchronizing signal. A synchronization control circuit compares the phases of frame synchronizing signals output by the decoding of the coded signals and the phase of the reference synchronizing signal. So long as a phase difference between either one of the frame synchronizing signals and the reference synchronizing signal lies in a preselected range, the synchronization control circuit reads the coded signal sequentially stored. If the phase difference is smaller than a first preselected value, the synchronization control circuit repeatedly reads an I (Intra-coded) picture two times.Type: GrantFiled: April 19, 2000Date of Patent: October 23, 2001Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 6266448Abstract: A frame memory supplies picture signals from an input terminal to a motion vector detecting circuit after delaying them by one frame period. The motion vector detecting circuit detects a motion vector based on picture signals of the present frame from the input terminal and the delayed picture signals of the previous frame which are supplied from the frame memory. A motion compensation circuit corrects picture signals inputted thereto using the detected motion vector. An inter-frame coding circuit obtains inter-frame coded signals from the picture signals of the present frame, which were subjected to the motion compensation, and those of the previous frame decoded by a decoding circuit. The coded signals are outputted from an output terminal as a coded bit stream via a mixer along with the coded motion vector.Type: GrantFiled: December 17, 1998Date of Patent: July 24, 2001Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 6072833Abstract: A motion detector and a motion area detector detect shifts of areas at which motions exist by using signals of fields before and after the field to be detected. According to shifts of the detected areas, an initial vector closest to the true motion is selected among prospective initial vectors produced at an initial vector selector or an initial vector detector by a block matching method, thereby reducing detection errors in motion vectors occurring at a time of the detection of motion vectors, and thereby improving accuracy of motion vectors, so that image distortions would reduced in an interpolating process.Type: GrantFiled: December 10, 1997Date of Patent: June 6, 2000Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 6067117Abstract: An image signal processor wherein an image is divided spatially or on a time series basis into multiple units, and is encoded on the basis of the divided unit, in order for image transform processing such as cutting, insertion, and composing thereof, to be performed upon one or multiple encoded image signals, The system includes an object detection circuit 5 (25) for detecting from the image signals a block or field unit as an object of image transform processing local decoding circuits 3, 4 (23, 34) for locally decoding only the image signals of the block or field unit detected by the object detection circuit; a processing circuit 7 (27) for processing the image signals decoded by the local decoding circuits 3, 4, (23, 24); a local encoding circuit 8 (28) for locally encoding the image signals processed by the processing circuit 7 (27); and a composing circuit 9 (29) for composing both the image signals encoded by the circuit 8 (28) and original image signals.Type: GrantFiled: March 18, 1997Date of Patent: May 23, 2000Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 5981978Abstract: A superluminiscent diode includes: a semiconductor substrate of a first conductivity type lower cladding layer of the first conductivity type is provided on the semiconductor substrate. An active layer is provided on the lower cladding layer. An upper cladding layer of a second conductivity type opposite to the first conductivity type bis provided on the active layer. A current blocking layer of the first conductivity type, buried in the upper cladding layer. The current blocking layer has a stripe-shaped groove serving as a current-injection region. The current-injection region is formed in a manner that is extends from an end face of a chip to the inside of the chip, and has a length shorter than that of the chip. The current blocking layer is made of a material having a band gap energy not greater than that of the active layer and a refractive index not smaller than that of the active layer so that light advancing in the active layer is absorbable.Type: GrantFiled: June 27, 1996Date of Patent: November 9, 1999Assignee: Rohm Co., Ltd.Inventors: Masato Mushiage, Tatsuo Yamauchi, Yukio Shakuda
-
Patent number: 5956090Abstract: A standards converter converts an input video signal having time codes from a first television standard to a second television standard. The time codes are separated from the input video signal to obtain hours, minutes, and seconds values and input frame numbers. The hours, minutes, and seconds values are stored in a memory. Output frame numbers are generated in a consecutive sequence, from a first frame number to a last frame number, starting at times that are synchronized with the start of the sequence of input frame numbers. The output frame numbers are combined with the hours, minutes, and seconds values stored in the memory to generate output time codes, which are combined with the converted video signal.Type: GrantFiled: July 23, 1997Date of Patent: September 21, 1999Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 5905551Abstract: An upper case and a lower case are fixed without using screws so that assemblage workability is improved. An electric appliance can be divided into plastic upper case, metal-plate-made lower case, and logic package having print substrates. As a result, the electric appliance is easy to make.Type: GrantFiled: December 10, 1997Date of Patent: May 18, 1999Assignee: Hitachi Telecom Technologies Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5844630Abstract: A motion detector and a motion area detector detect shifts of areas at which motions exist by using signals of fields before and after the field to be detected. According to shifts of the detected areas, an initial vector closest to the true motion is selected among prospective initial vectors produced at an initial vector selector or an initial vector detector by a block matching method, thereby reducing detection errors in motion vectors occurring at a time of the detection of motion vectors, and thereby improving accuracy of motion vectors, so that image distortions would reduced in an interpolating process.Type: GrantFiled: June 6, 1995Date of Patent: December 1, 1998Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 5838402Abstract: An upper case 1 and a lower case 2 are fixed by no screw, so that assemblage workability is improved. An electric appliance can be divided into plastic upper case 1, metal-plate-made lower case 2, and logic package 9 having print substrates. As a result, the electric appliance is easy to waste.Type: GrantFiled: August 28, 1996Date of Patent: November 17, 1998Assignee: Hitachi Telecom Technologies, Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5729302Abstract: A motion detector and a motion area detector detect shifts of areas at which motions exist by using signals of fields before and after the field to be detected. According to shifts of the detected areas, an initial vector closest to the true motion is selected among prospective initial vectors produced at an initial vector selector or an initial vector detector by a block matching method, thereby reducing detection errors in motion vectors occurring at a time of the detection of motion vectors, and thereby improving accuracy of motion vectors, so that image distortions would be reduced in an interpolating process.Type: GrantFiled: September 16, 1994Date of Patent: March 17, 1998Assignee: Oki Electric Industry Co., Ltd.Inventor: Tatsuo Yamauchi
-
Patent number: 5666409Abstract: A dealing board has a dealing board main body having a box-like structure. The box-like structure includes a top plate, bottom plate, front face plate and rear face plate. The top plate is forwardly slanted relative to the top of a desk on which the main body is mounted and has a number of openings formed therein. The dealing board further has a plurality of panel units arranged in the opening. A receiving device secured to a bent portion of the top end of the front face plate or the rear face plate forms a gap. The dealing board further has a screen plate attached to a top end of the one of the rear face plate or the front face plate which is not bent, and a fixing device is provided on the screen plate so as to be removable by set screws. The dealing board further has a card insertion slot of a reader-writer for reading and writing information on memory cards, a card take-out button placed near the card insertion slot, and a cover covering the card slot and card take-out button.Type: GrantFiled: March 27, 1995Date of Patent: September 9, 1997Assignee: Hitachi Telecom Technologies, Ltd.Inventors: Junichi Tanji, Fumiyoshi Oono, Takuya Ishida, Toshimi Akimoto, Tomonobu Watanabe, Katutoshi Yoshida, Ichiro Hoshi, Tatsuo Yamauchi, Junichiro Imai
-
Patent number: 5661793Abstract: A key unit is provided with a first print substrate on which a contact portion and a LED capable to be mounted on flat surface are mounted, a conductive contact rubber, placed on the first print substrate, having a movable contact portion which can contact with the contact portion and an open portion in which the LED is accommodated, a key button placed on the conductive contact rubber, a LED lens, placed on the edge portion of the open portion of the conductive contact rubber, which leads the light beam generated from the LED in the open portion, and a key case having a through hole into which the key button is slidably inserted and a lens insertion hole into which the LED lens is inserted. The key unit may also be provided with a chip resistor to protect the LED, which is mounted on the first print substrate at a position below a lower end face of the key case.Type: GrantFiled: September 11, 1995Date of Patent: August 26, 1997Assignee: Hitachi Telecom Technologies, Ltd.Inventors: Junichi Tanji, Fumiyoshi Oono, Takuya Ishida, Toshimi Akimoto, Tomonobu Watanabe, Katutoshi Yoshida, Ichiro Hoshi, Tatsuo Yamauchi, Junichiro Imai
-
Patent number: 5602722Abstract: An electric appliance includes a case, an accommodation portion for accommodating a liquid crystal indicator, and upper and lower protrusions respectively arranged above and below an opening provided on stepped portion not arranged on the front face portion of the accommodation portion. The liquid crystal indicator engages with the upper protrusion and mounts on the lower protrusion such that the liquid crystal indicator is positioned adjacent to the stepped portion and is visible through the opening.Type: GrantFiled: June 7, 1995Date of Patent: February 11, 1997Assignee: Hitachi Telecom Technologies, Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5594625Abstract: An upper case 1 and a lower case 2 are fixed by no screw, so that assemblage workability is improved. An electric appliance can be divided into plastic upper case 1, metal-plate-made lower case 2, and logic package 9 having print substrates. As a result, the electric appliance is easy to waste.Type: GrantFiled: June 7, 1995Date of Patent: January 14, 1997Assignee: Hitachi Telecom Technologies Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5581446Abstract: A housing structure of an electric appliance has an upper case and a lower case. The upper case is provided with a plurality of logic holding portions arranged on inner sides of left and right side face portions of the upper case. An interior one of the logic holding portions has a protrusion engagement portion which is defined by a slant face and a front face of the interior holding portion. The lower case is provided with a lower case side engagement portion which engages releasibly with the protrusion engagement portion. The lower case side engagement portion has a resilient half portion in a half support which is formed on a bottom face of the lower case and on which an extrusion portion that engages releasibly with the protrusion engagement portion and a threaded hole for a screw are formed.Type: GrantFiled: October 23, 1995Date of Patent: December 3, 1996Assignee: Hitachi Telecom Technologies Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5574304Abstract: A superluminescent diode includes a semiconductor substrate of a first conductivity type. A lower cladding layer of the first conductivity type is provided on the semiconductor substrate. An active layer is provided on the lower cladding layer. An upper cladding layer of a second conductivity type opposite to the first conductivity type is provided on the active layer. A current blocking layer of the first conductivity type is buried in the upper cladding layer. The current blocking layer has a stripe-shaped groove serving as a current-injection region. The current-injection region is formed in a manner that it extends from an end face of a chip to the inside of the chip, and has a length shorter than that of the chip. The current blocking layer is made of a material having a band gap energy not greater than that of the active layer and a refractive index not smaller than that of the active layer so that light advancing in the active layer is absorbable.Type: GrantFiled: February 24, 1995Date of Patent: November 12, 1996Assignee: Rohm Co., Ltd.Inventors: Masato Mushiage, Tatsuo Yamauchi, Yukio Shakuda
-
Patent number: 5461543Abstract: An upper case 1 and a lower case 2 are fixed by no screw, so that assemblage workability is improved. An electric appliance can be divided into plastic upper case 1, metal-plate-made lower case 2, and logic package 9 having print substrates.Type: GrantFiled: September 28, 1993Date of Patent: October 24, 1995Assignee: Hitachi Telecom Technologies Ltd.Inventors: Kazuo Sanpei, Tatsuo Yamauchi
-
Patent number: 5418850Abstract: A dealing board has a dealing board main body having a box-like structure. The box-like structure includes a top plate, bottom plate, front face plate and rear face plate. The top plate is forwardly slanted relative to the top of a desk on which the main body is mounted and has a number of openings formed therein. The dealing board further has a plurality of panel units arranged in the opening. A receiving device secured to a bent portion of the top end of the front face plate or the rear face plate forms a gap. The dealing board further has a screen plate attached to a top end of the one of the rear face plate or the front face plate which is not bent, and a fixing device is provided on the screen plate so as to be removable by set screws. The dealing board further has a card insertion slot of a reader-writer for reading and writing information on memory cards, a card take-out button placed near the card insertion slot, and a cover covering the card slot and card take-out button.Type: GrantFiled: October 20, 1993Date of Patent: May 23, 1995Assignee: Hitachi Telecom Technologies, Ltd.Inventors: Junichi Tanji, Fumiyoshi Oono, Takuya Ishida, Toshimi Akimoto, Tomonobu Watanabe, Katutoshi Yoshida, Ichiro Hoshi, Tatsuo Yamauchi, Junichiro Imai