Patents by Inventor Yuichiro Yoshimura
Yuichiro Yoshimura 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: 5500492Abstract: Disclosed is a coordinate input apparatus for detecting an input vibration from a vibration pen by a vibration sensor provided on a vibration transmitting plate to measure a vibration transmission time to the vibration pen to detect the input coordinates of the vibration pen on the vibration transmitting plate on the basis of the measurement result. The vibration pen is made wireless by incorporating all mechanisms required to generate the vibration. A drive timing for vibration input from the vibration pen and used as a measurement origin of the vibration transmission time is transmitted to a main body for performing the coordinate detection processing by bringing the vibration pen in temporary contact with the main body.Type: GrantFiled: October 24, 1994Date of Patent: March 19, 1996Assignee: Canon Kabushiki KaishaInventors: Katsuyuki Kobayashi, Shinnosuke Taniishi, Atsushi Tanaka, Yuichiro Yoshimura, Kiyoshi Kaneko, Ryozo Yanagisawa, Masaki Tokioka
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Patent number: 5491305Abstract: A vibration transmission plate for inputting coodinates has a two-layer structure with an input layer for inputting vibration and a vibration transmission layer for transmitting the vibration. By using a member having a flexural modulus of elasticity of 180.0-720.0 kgf/mm.sup.2 as the input layer, accuracy in detecting the input position of the vibration can be improved. By forming a member made of glass fibers, which can restrict the direction of the transmission of the vibration between the input layer and the vibration transmission layer as an intermediate layer, the accuracy can also be improved.Type: GrantFiled: January 15, 1993Date of Patent: February 13, 1996Assignee: Canon Kabushiki KaishaInventors: Tatsuro Kawakami, Yuichiro Yoshimura, Katsuyuki Kobayashi
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Patent number: 5484967Abstract: Some components of a vibration input to an input guarantee region on a vibration transmission plate directly reach a vibration sensor, but some other components are reflected by the end portion of the vibration transmission plate, and then reach the vibration sensor. A vibration suppressor is attached to a peripheral edge of the vibration transmission plate, and is located along the path of the vibration reflected by the end portion of the vibration transmission plate to the vibration sensor. Since the vibration sensor is attached to a corner portion of the vibration transmission plate where no vibration suppressor is attached, a decrease in coordinate detection precision caused by reflected waves can be suppressed, and a compact apparatus can be realized.Type: GrantFiled: September 30, 1993Date of Patent: January 16, 1996Assignee: Canon Kabushiki KaishaInventors: Ryozo Yanagisawa, Atsushi Tanaka, Yuichiro Yoshimura, Kiyoshi Kaneko, Katsuyuki Kobayashi, Masaki Tokioka
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Patent number: 5438872Abstract: An apparatus for measuring a thickness of plate material includes a plate material whose thickness is to be measured, a vibration pen to generate a plate wave by applying a vibration to the plate material, a vibration sensor which is disposed at an arbitrary position on the plate material and detects the plate wave which has propagated on the plate material, an extracting circuit to extract different frequency components of the plate wave detected by the vibration sensor, a timer to measure arrival times to the vibration sensor of the signals of the different frequency components extracted by the extracting circuit, and a controller to obtain a thickness of the plate material on the basis of the arrival times measured by the timer and the frequency components corresponding thereto. The extracting circuit is a band pass filter.Type: GrantFiled: June 18, 1992Date of Patent: August 8, 1995Assignee: Canon Kabushiki KaishaInventors: Katsuyuki Kobayashi, Atsushi Tanaka, Yuichiro Yoshimura, Kiyoshi Kaneko, Masaki Tokioka
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Patent number: 5420804Abstract: A coordinate position correcting apparatus includes a setting device for setting in advance a coordinate to be input into a vibration input device, a correction coefficient calculator for calculating a correction coefficient as a ratio of the coordinate set by the setting device to a coordinate output by calculation, and a coordinate corrector for correcting the coordinate output by calculation on the basis of the correction coefficient calculated by the correction coefficient calculator.Type: GrantFiled: September 2, 1992Date of Patent: May 30, 1995Assignee: Canon Kabushiki KaishaInventors: Atsushi Tanaka, Shinnosuke Taniishi, Yuichiro Yoshimura, Kiyoshi Kaneko, Ryozo Yanagisawa, Katsuyuki Kobayashi, Masaki Tokioka
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Patent number: 5362930Abstract: A coordinate input apparatus according to the present invention eliminates distortion caused by interference of a asymmetrical plate wave with an asymmetrical plate wave from the vibrations which are detected after they have been propagated in a vibration transmitting member and performs a highly accurate position coordinate detection. The vibrations of a pen which is brought into contact with the vibration transmitting member are detected by sensors provided on both the front and rear surfaces of the vibration transmitting member to determine a coordinate of a position where the vibrating pen has been brought into contact. At that time, the vibration sensors mounted on the front and rear of the vibration transmitting member in an opposed relation detect vibrations on the two surfaces of the transmitting member. The signals which are detected by each pair of front and rear sensors represent vibrations in which the asymmetrical plate waves having the same phase and the 180.degree.Type: GrantFiled: June 29, 1992Date of Patent: November 8, 1994Assignee: Canon Kabushiki KaishaInventors: Yuichiro Yoshimura, Atsushi Tanaka, Kiyoshi Kaneko, Katsuyuki Kobayashi, Masaki Tokioka
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Patent number: 5352856Abstract: A coordinates input apparatus for detecting coordinate values of an arbitrary point by indicating the arbitrary point on a vibration transmission plate by a vibration input pen for generating a vibration, comprises: a plurality of sensors, arranged at predetermined positions in the vibration transmission plate, for detecting the vibration generated by the indication by the vibration input pen, for converting the vibration into electric signals, and for outputting; a measuring circuit to measure delay times from a time point when the arbitrary point has been indicated by the vibration input pen until time points when the electric signals are detected; an obtaining circuit to obtain origin correction data from a plurality of points on the vibration transmission plate; a memory to store the origin correction data; and a processor for reading out the origin correction data from the memory, for correcting the coordinate values on the basis of the delay times measured by the measuring circuit and the origin correctType: GrantFiled: October 21, 1991Date of Patent: October 4, 1994Assignee: Canon Kabushiki KaishaInventors: Atsushi Tanaka, Shinnoskue Taniishi, Yuichiro Yoshimura, Kiyoshi Kaneko, Ryozo Yanagisawa, Katsuyuki Kobayashi, Takeshi Kamono
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Patent number: 5253187Abstract: A coordinate input apparatus in which a vibration which was input by a vibration input pen is detected by vibration sensors attached to a vibration propagating plate such as a transparent glass plate or the like and the coordinates of the position of the pen on the plate are detected.Type: GrantFiled: February 19, 1992Date of Patent: October 12, 1993Assignee: Canon Kabushiki KaishaInventors: Kiyoshi Kaneko, Katsuyuki Kobayashi, Takeshi Kamono, Ryozo Yanagisawa, Shinnosuke Taniishi, Yuichiro Yoshimura, Atsushi Tanaka
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Patent number: 5177472Abstract: A vibrating input pen used for a coordinate input apparatus for detecting a coordinate of an input position of a vibration by detecting the vibration input from the vibrating input pen to a vibration transmitting plate includes a vibration generating element for generating a vibration and a horn member forming a pen point of the vibrating input pen for transmitting the vibration generated from the vibration generating element. A positioning member positions the vibration generating element in relation to the horn member so that the direction of vibration of the vibration generating element coincides with the direction of vibration of the horn member and the axis of the vibration generating element coincides with the axis of the horn member.Type: GrantFiled: December 21, 1990Date of Patent: January 5, 1993Assignee: Canon Kabushiki KaishaInventors: Shinnosuke Taniishi, Ryozo Yanagisawa, Katsuyuki Kobayashi, Yuichiro Yoshimura, Kiyoshi Kaneko, Takeshi Kamono, Atsushi Tanaka
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Patent number: 5142106Abstract: In a coordinates input apparatus in which a vibration input from a vibration pen is detected by a plurality of vibration sensors attached to a transparent vibration propagating plate such as an acrylic or glass plate and the coordinate position of the vibration pen is detected from the vibration propagation times until the vibration sensors, the sensors and the vibration proof material are arranged in a manner such that a distance between the attaching boundary surface of the vibration proof material attached to the peripheral portion of the vibration propagating plate and the center of each sensor which is attached to the input side than the attaching boundary surface of the vibration proof material lies within a range from 0.5 time to a value less than 1.0 time as large as the diameter of the sensor, preferably, within a range from 1.0 mm to a value less than 2.0 mm.Type: GrantFiled: July 16, 1991Date of Patent: August 25, 1992Assignee: Canon Kabushiki KaishaInventors: Yuichiro Yoshimura, Shinnosuke Taniishi, Katsuyuki Kobayashi, Ryozo Yanagisawa, Kiyoshi Kaneko, Takeshi Kamono, Atsushi Tanaka
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Patent number: 5097415Abstract: A coordinates input apparatus for detecting coordinates of an instructed position from a vibration progagation time on a vibration propagation plate is provided. This apparatus comprises; a vibration pen to generate a vibration; a vibration propagation plate with which the vibration pen is come into contact and which transmits the vibration; a sensor which is arranged in contact relation with the vibration propagation plate and detects the vibration; a vibration-proof material attached to the periphery of the vibration propagation plate so as to have a width of 1/2 of a wavelength of the elastic wave of the vibration; and an operation controller to calculate the contact position of the vibration pen on the vibration propagation plate from the detection time when the vibration was detected by the sensor. The sensor detects the surface wave of the vibration-proof material.Type: GrantFiled: November 29, 1990Date of Patent: March 17, 1992Assignee: Canon Kabushiki KaishaInventors: Yuichiro Yoshimura, Atsushi Tanaka, Kiyoshi Kaneko
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Patent number: 5097102Abstract: A coordinate input apparatus for detecting a vibration transmitted from a vibration input pen by a plurality of vibration sensors arranged on a vibration transmission member, and for determining coordinates of the vibration input pen from vibration propagation times required between the position of the vibration input pen to the positions of the vibration sensors, includes a vibration-isolating member formed in a peripheral portion of the vibration transmission member. The vibration-isolating member has a multi-layered structure consisting of a plurality of vibration-isolating layers formed so that a layer nearer to the vibration transmission plate has a lower acoustic impedance than that of a layer farther from the vibration transmission plate.Type: GrantFiled: December 21, 1990Date of Patent: March 17, 1992Assignee: Canon Kabushiki KaishaInventors: Yuichiro Yoshimura, Ryozo Yanagisawa, Katsuyuki Kobayashi, Kiyoshi Kaneko, Atsushi Tanaka, Shinnosuke Taniishi, Takeshi Kamono
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Patent number: 5070325Abstract: A coordinate input apparatus includes a vibration pen, a vibration transmission plate, a plurality of vibration detecting units, a calculating unit, a memory unit, and a control unit. The calculating unit calculates vibration transmission times from a point designated by the vibration pen to the vibration detecting units, and calculates coordinate values of the designated point of the vibration pen. The memory unit stores the vibration transmission times from a first designated point of the vibration pen on the vibration transmission plate to the vibration detecting units and coordinate values of the first designated point.Type: GrantFiled: March 16, 1989Date of Patent: December 3, 1991Assignee: Canon Kabushiki KaishaInventors: Atsushi Tanaka, Kiyoshi Kaneko, Yuichiro Yoshimura, Noriyuki Suzuki, Katsuyuki Kobayashi, Shigeki Mori, Shinnosuke Taniishi
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Patent number: 5019865Abstract: In an image processing apparatus having a designator for designating an area of a document image and a processor for carrying out a predetermined process to the designated area when the document image is input, the document image area designator has a document table at an image input unit, made of a transparent and vibration-transmitting plate, and a coordinate input device for detecting coordinates of a vibration input point by detecting vibration applied to the document table, by vibration sensors arranged in the document table.Type: GrantFiled: December 18, 1989Date of Patent: May 28, 1991Assignee: Canon Kabushiki KaishaInventors: Atsushi Tanaka, Kiyoshi Kaneko, Yuichiro Yoshimura
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Patent number: 4931965Abstract: A coordinates input apparatus, for example, a digitizer, has a vibration propagation medium such as a transparent glass plate for allowing a vibration to propagate therethrough; an input pen for applying vibration to the vibration propagation medium; a vibration detector for detecting vibration applied by the input pen; an envelope output device for producing an envelope signal representing the envelope of the vibration detected by the vibration detector; a differentiator for conducting a differentiation of the envelope signal produced by the envelope output device so as to determine the peak; a controller adapted for determining, as the time of arrival of the vibration, a zero-cross point of the vibration that is located in the vicinity of a zero-cross point of the signal from the differentiator; and a computing device for computing the distance between the input pen and the vibration detector from the time determined by the controller.Type: GrantFiled: June 29, 1987Date of Patent: June 5, 1990Assignee: Canon Kabushiki KaishaInventors: Kiyoshi Kaneko, Atsushi Tanaka, Yuichiro Yoshimura, Katsuyuki Kobayashi, Shinnosuke Taniishi
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Patent number: 4886943Abstract: There is provided a coordinates input apparatus for detecting the coordinates of a point indicated by an instruction pen on a vibration transmitting plate made of a transparent tablet on the basis of the vibration transmission times on this plate.Type: GrantFiled: January 23, 1989Date of Patent: December 12, 1989Assignee: Canon Kabushiki KaishaInventors: Noriyuki Suzuki, Atsushi Tanaka, Kiyoshi Kaneko, Yuichiro Yoshimura, Shinnosuke Taniishi, Katsuyuki Kobayashi, Shigeki Mori