Patents by Inventor Eisaku Tatsumi
Eisaku Tatsumi 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: 6014132Abstract: An electronic device for entering information comprises a CPU for controlling the entire electronic device, information entry means for obtaining information at a predetermined time interval, and control means for controlling the CPU and the information input means such that, in a first mode in which no information is entered, the predetermined time interval is maintained in preparation for sudden entry of information and an operating clock frequency of the CPU is kept at a low frequency, and in a second mode in which information is entered, the predetermined time interval is maintained and the operating clock frequency of the CPU is kept at a high frequency.Type: GrantFiled: December 23, 1993Date of Patent: January 11, 2000Assignee: Canon Kabushiki KaishaInventors: Kazutoshi Shimada, Eisaku Tatsumi, Noriyuki Suzuki
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Patent number: 5991440Abstract: The present invention relates to a character input apparatus and method which pairs the title of a heading to the region where a character is inputted and determines the character group which can be inputted into the region corresponding to the heading as input candidate characters. When a character is inputted in the region, the heading in that region is discriminated and the characters are recognized referring to the input candidate character group corresponding to the title of the heading.Type: GrantFiled: March 10, 1995Date of Patent: November 23, 1999Assignee: Canon Kabushiki KaishaInventors: Kazuhiro Matsubayashi, Shinnosuke Taniishi, Eisaku Tatsumi, Shigeki Mori, Atsushi Tanaka
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Patent number: 5982928Abstract: A system consisting of a plurality of terminals connected through communication is sometimes used to acquire information input from the terminals to a host terminal and edit/arrange the information in the host terminal when information is exchanged by inputting handwritten characters from the terminals. In this case, the host terminal must recognize the handwritten characters and thereafter process the characters to arrange the handwritten character information. Each terminal can perform character recognition by a unique character recognizing method. The terminals also individually prepare dictionaries for recognition. The host terminal returns the acquired handwritten character information to the terminals and causes the terminals to perform character recognition. Alternatively, the host terminal concentratively manages the character recognizing methods and dictionaries of all the terminals and performs character recognition.Type: GrantFiled: June 19, 1995Date of Patent: November 9, 1999Assignee: Canon Kabushiki KaishaInventors: Kazutoshi Shimada, Eisaku Tatsumi, Shigeki Mori, Kasuhiro Matsubayashi, Shinichi Sunakawa, Takashi Harada, Katsuhiko Nagasaki, Ryoji Fukuda
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Patent number: 5974191Abstract: An image containing characters and lines, which is inputted by a scanner or the like, is binarized and stored in a memory. A thickening process is repeatedly applied on groups of significant bits stored in the memory, until a predetermined condition is fulfilled. After this process, the thickened image is thinned at least a greater number of times than the number of times the thickening process is repeated in order to eliminate lines. As a result, characters are determined to exist at areas where groups composed of remaining significant dots exist, then characters are separated from the input image based on the areas of groups composed of the remaining significant dots.Type: GrantFiled: October 14, 1997Date of Patent: October 26, 1999Assignee: Canon Kabushiki KaishaInventors: Takashi Harada, Kazutoshi Shimada, Eisaku Tatsumi, Shigeki Mori, Kazuhiro Matsubayashi, Shinichi Sunakawa, Katsuhiko Nagasaki
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Patent number: 5936619Abstract: An input-output integrated type electronic apparatus is arranged to enable the orientation of a displayed picture to be changed according to the orientation of the apparatus in a used state, whereby the facility with which the apparatus is used is improved. To change the display orientation, the content of a displayed picture is changed on the basis of a detected orientation of the apparatus.Type: GrantFiled: June 25, 1996Date of Patent: August 10, 1999Assignee: Canon Kabushiki KaishaInventors: Katsuhiko Nagasaki, Kazutoshi Shimada, Eisaku Tatsumi, Noriyuki Suzuki, Shinichi Sunakawa
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Patent number: 5828568Abstract: An information processing apparatus, which operates in a multi-task mode, calculates a total consumption power of devices used by each task, and assigns higher execution priority to a task which uses a device with the largest consumption power, thereby shortening the execution time of the device with the largest consumption power, and suppressing the total consumption power of the apparatus. When a device is started upon switching of tasks, if the total consumption power exceeds the allowable power of the apparatus by a power consumed upon restarting of the device, the task is set in a waiting state until operations of other devices are completed, the consumption power is lowered, and it is ready to use the device by the task.Type: GrantFiled: September 18, 1997Date of Patent: October 27, 1998Assignee: Canon Kabushiki KaishaInventors: Shinichi Sunakawa, Kazutoshi Shimada, Eisaku Tatsumi, Shigeki Mori, Kazuhiro Matsubayashi, Takashi Harada, Katsuhiko Nagasaki, Ryoji Fukuda
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Patent number: 5814972Abstract: An electronic apparatus comprising a plurality of loads, which are separately driven by a plurality of batteries, further comprises a switching device which automatically changes a system of connection between the batteries and the loads in accordance with the conditions of the electronic apparatus. Such conditions of the electronic apparatus include the remaining capacities of the batteries, load changes in the loads, and temperature changes in the electronic apparatus. An electronic apparatus provided with a system clock generating device and a peak load device comprises a system clock controller which suspends the supply of a system clock or divides the system clock while a peak voltage is being generated. A drive controller changes the connection between the first and second batteries in accordance with detected remaining capacities of the first and second batteries.Type: GrantFiled: April 24, 1997Date of Patent: September 29, 1998Assignee: Canon Kabushiki KaishaInventors: Kazutoshi Shimada, Eisaku Tatsumi, Shinichi Sunakawa, Katsuhiko Nagasaki
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Patent number: 5781662Abstract: Handwritten/input stroke data is compared with a gesture dictionary. If the data coincides with a specific gesture, it is checked whether the gesture is completed, and the stroke data is stored. After the meaning of the gesture command is analyzed by using the gesture dictionary, an image stroke data group which does not coincide with any gesture, and an icon group replacing stroke data which coincides with a gesture appears on the display screen. In this state, when the user taps icons having functions as gestures he/she wants to execute, the corresponding gesture commands are executed.Type: GrantFiled: June 7, 1995Date of Patent: July 14, 1998Assignee: Canon Kabushiki KaishaInventors: Shigeki Mori, Kazutoshi Shimada, Eisaku Tatsumi, Kazuhiro Matsubayashi, Shinichi Sunakawa, Takashi Harada, Katsuhiko Nagasaki, Ryoji Fukuda
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Patent number: 5657459Abstract: An information apparatus comprises a main apparatus and a subsidiary apparatus which are separable. The main and subsidiary apparatuses has electrical connectors which are connected substantially automatically when the two apparatuses are attached. The connectors are provided with covers which are movable in association with the attaching procedure. Thereby, the connectors can be kept clean and free from dust contamination or breakage, and the reliability of the information apparatus can be enhanced.Type: GrantFiled: September 10, 1993Date of Patent: August 12, 1997Assignee: Canon Kabushiki KaishaInventors: Ryozo Yanagisawa, Kazutoshi Shimada, Eisaku Tatsumi, Atsushi Tanaka, Noriyuki Suzuki, Yuichiro Yoshimura, Kiyoshi Kaneko, Katsuyuki Kobayashi, Shinichi Sunakawa, Katsuhiko Nagasaki, Masaki Tokioka
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Patent number: 5644339Abstract: An electronic information apparatus for receiving information input in a plurality of formats and receiving a particular category of information capable of being registered in at least two corresponding formats includes a coordinate input apparatus for inputting information containing the particular category of information and a discriminator, for identifying one of the formats, associated with the particular category of information, a detector for detecting the discriminator, an extractor for extracting the particular category of information associated with the discriminator from the input information, and a memory for registering the extracted particular category of information in the format identified by the discriminator detected by the detector and for registering the particular category of information in another corresponding format.Type: GrantFiled: January 9, 1995Date of Patent: July 1, 1997Assignee: Canon Kabushiki KaishaInventors: Shigeki Mori, Eisaku Tatsumi, Atsushi Tanaka, Kazuhiro Matsubayashi
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Patent number: 5644653Abstract: A hand-held computer with an input pen capable of handwriting recognition. Characters are inputted by a user's manual operation with the input pen on a transparent coordinate input plate in front of a display screen. The computer discriminates pen-input characteristic of the user, and selects a character-recognition dictionary based on the discrimination result.Type: GrantFiled: April 26, 1994Date of Patent: July 1, 1997Assignee: Canon Kabushiki KaishaInventors: Shinichi Sunakawa, Kazutoshi Shimada, Eisaku Tatsumi, Noriyuki Suzuki, Katsuhiko Nagasaki
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Patent number: 5600228Abstract: A power managing apparatus in an electronic apparatus using a battery comprises a residual power quantity detector for detecting a residual quantity of the battery; a time setter for setting a time; a judging unit for judging whether the electronic apparatus can be driven until the set time or not on the basis of the detected residual quantity of the battery; and an alarm display for notifying the result of the judgment. The set time is an operable time of the electronic apparatus or an operable time obtained from the next charging time or can be input by a pen.Type: GrantFiled: July 27, 1994Date of Patent: February 4, 1997Assignee: Canon Kabushiki KaishaInventors: Kazuhiro Matsubayashi, Kazutoshi Shimada, Eisaku Tatsumi, Shigeki Mori, Shinichi Sunakawa, Takashi Harada, Katsuhiko Nagasaki
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Patent number: 5598150Abstract: A parent node transmits a third specific message to child nodes as a broadcast message if a first specific message indicating the start of the child node collides with another message so that normal receiving cannot be performed. Then, the parent node sequentially transmits second specific messages to each child node and then receives responses to recognize the states of the children nodes. The parent node transmits a specific message indicating a realization of a sleeping state as a broadcast message to the children nodes, followed by transmitting a specific message when data to be transmitted from the child node has been generated. The parent node cancels the sleeping state when it receives the specific message.Type: GrantFiled: May 28, 1993Date of Patent: January 28, 1997Assignee: Canon Kabushiki KaishaInventors: Noriyuki Suzuki, Kazutoshi Shimada, Eisaku Tatsumi, Shinichi Sunakawa, Katsuhiko Nagasaki
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Patent number: 5526161Abstract: A communication apparatus transmits a test message in one direction by the transmitting unit having narrow directivity capable of changing the transmitting direction, and an indication message which indicates that the test message is being transmitted by a transmitting unit having non directivity. Accordingly, the indication message is transmitted at least to the communicating party's apparatus. Subsequently, the transmitting direction of the test message is sequentially changed, and a similar process is performed. When the communicating party's apparatus detects a reception of the indication message, information indicating a level of the test message is transmitted to the transmitting apparatus as a response. The communication apparatus at the transmitting side detects the direction where the communicating party exists by receiving the information indicating the level. Hereinafter, the information communication is performed to adjust the transmitting unit of narrow directivity to the determined direction.Type: GrantFiled: June 20, 1994Date of Patent: June 11, 1996Assignee: Canon Kabushiki KaishaInventors: Noriyuki Suzuki, Kazutoshi Shimada, Eisaku Tatsumi, Shinichi Sunakawa, Katsuhiko Nagasaki
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Patent number: 5517608Abstract: A communication apparatus which can communicate by a proper light intensity and can prevent excessive electric power consumption without providing light intensity measuring means on the reception side is provided. There are also provided communication apparatus and method, in which after a CPU issued a first message, a light emission intensity of an infrared LED is changed by the CPU so as to become the optimum state in accordance with the presence or absence of the response of a second message that is performed in response to the first message.Type: GrantFiled: August 18, 1994Date of Patent: May 14, 1996Assignee: Canon Kabushiki KaishaInventors: Noriyuki Suzuki, Kazutoshi Shimada, Eisaku Tatsumi, Shinichi Sunakawa, Katsuhiko Nagasaki
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Patent number: 5003614Abstract: An image processing system has an image processing function for use in, particularly, a word processor, a copying machine, or a facsimile apparatus. This apparatus includes an image reader to read and input image information; a keyboard to input character information; a recognizing unit for recognizing the character information in the image information inputted by the image reader; and an image processor for performing the editing of characters on the basis of the result by the recognizing unit. The character information includes lines of character strings, paragraphs in document information, spaces between words, spaces between characters, hyphens, or positions of words. The image processor means performs the image editing processes such as right alignment, deletion, rewriting, insertion, search, and the like with respect to the character information recognized by the recognizing unit.Type: GrantFiled: September 15, 1989Date of Patent: March 26, 1991Assignee: Canon Kabushiki KaishaInventors: Yuzuru Tanaka, Eisaku Tatsumi, Hiroshi Tanioka, Yoshinori Kato