Patents by Inventor Yoshio Wakatsuki
Yoshio Wakatsuki 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: 5513347Abstract: A data transfer system for transferring a transfer frame including a plurality of character codes representing a numeral of numerical data to be transferred, error detection data including a parity code for the character codes and a predetermined transfer control code to a controller on a receiver side from a controller on a sender side. In the controller on the sender side, a parity code obtained for the character codes is divided into a plurality of bit groups, a predetermined code which does not coincide with the predetermined transfer control code is affixed to each divided bit group to form divided parity data having a specific number of bits, and the transfer frame is constituted with these plural divided parity data as the error detection data. In the controller on the receiver side, the original parity code is restored from a plurality of divided parity data in the received transfer frame and is used.Type: GrantFiled: November 1, 1994Date of Patent: April 30, 1996Assignee: Man Design Co., Ltd.Inventors: Yoshio Wakatsuki, Toshiharu Okuyama, Hajime Takeuchi, Misao Shimizu, Giichiro Shimizu
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Patent number: 5278551Abstract: A meter at each user's house has a bar-coded user number shown thereon, and has a display section for displaying a reading. A data input terminal unit has a bar code reader for reading the user number and a keyboard for manually inputting a present reading. A data recording controller has a meter reading data file having a present reading for each user number. The data input terminal unit radio-transmits a read user number to the data recording controller and radio-receives a previous reading, corresponding to the user number, from said data recording controller. The data input terminal unit computes the amount used from this previous reading and the present reading manually input, and causes a printer to print meter reading data including this used amount on a reading slip while radio-transmitting it to the data recording controller.Type: GrantFiled: April 6, 1993Date of Patent: January 11, 1994Assignee: Nitto Kohki Co., Ltd.Inventors: Yoshio Wakatsuki, Toshiharu Okuyama, Hajime Takeuchi, Giichiro Shimizu, Misao Shimizu
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Patent number: 5065003Abstract: A casing of a portable data input/transmission apparatus has an end portion, the size of which is determined such that the end portion can be held by one hand. A pen-scanner type bar code reader for reading a bar code is attached to one end of the casing in the longitudinal direction. A keyboard for enabling at least numerical data to be input is attached near the other end of the casing in the longitudinal direction. A transmitter/receiver is stored within the casing, the transmitter/receiver being designed to output wirelessly to an external data processing apparatus code data read by the bar code reader and at least numerical data input from the keyboard. A pair of antenna-containing grooves are formed in a pair of facing side surfaces extending in the longitudinal direction of the casing, such that the grooves extend in the longitudinal direction of the casing to said other end of the casing.Type: GrantFiled: March 12, 1990Date of Patent: November 12, 1991Assignee: Nitto Kohki Co., Ltd.Inventors: Yoshio Wakatsuki, Toshiharu Okuyama, Hajime Takeuchi, Giichiro Shimizu, Misao Shimizu
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Patent number: 5023438Abstract: A portable data input apparatus comprises an elongated casing. A pen-scanner type bar code reader reads a bar code provided according to the kind of a commodity, and outputs a corresponding code data unit. A keyboard is designed to input at least a numerical data unit representative of the amount of the commodity. A display device displays the code data unit and the numerical data unit. A display mode changing circuit is designed to invert the image of the data units displayed on the display device in the vertical direction and the horizontal direction, in response to a detection signal, which is output when the code data and numerical data are inversely displayed.Type: GrantFiled: November 24, 1989Date of Patent: June 11, 1991Assignee: Nitto Kohki Co., Ltd.Inventors: Yoshio Wakatsuki, Toshiharu Okuyama, Hajime Takeuchi, Giichiro Shimizu, Misao Shimizu
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Patent number: 5008665Abstract: A measuring device having a transmitter includes a measuring device section, a data processing unit, a transmitter, and a casing. The measuring device section converts measuring data into a digital value and outputs it. The data processing unit arranges the measurement data obtained in the measuring device section in a transmission data string having a predetermined format and outputs it. The transmitter transmits the transmission data, which is output from the data processing unit, by radio transmission. The transmitter is housed in the casing, which is attached to a portion near an operation section of the measuring device section, together with the data processing unit. An antenna output terminal of the transmitter is connected to the casing or a conductor portion near the casing.Type: GrantFiled: August 20, 1990Date of Patent: April 16, 1991Assignee: Man Design Co. Ltd.Inventors: Yoshio Wakatsuki, Toshiharu Okuyama, Hajime Takeuchi, Misao Shimizu, Giichiro Shimizu
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Patent number: 4973957Abstract: A host apparatus collects the physical or chemical quantities of articles, which have been measured by a plurality of measuring devices, for example, vernier calipers. Each calipers has a caliper unit as a measuring means, a dip-switch, a CPU, a RAM, and a transmitter. The caliper unit has an analog-to-digital (A/D) converter. The dip-switch is operated, thus setting an ID number of the device, before the device is used. The ID number is stored into the RAM. When the transmission button of the device is pushed, the CPU edits the digital value supplied from A/D converter and the ID number stored in the RAM, thereby forming a serial-data message. This message is transmitted by a transmitter, in the form of a radio message. The host apparatus has a receiver and a host computer. The receiver received the serial-data messages transmitted from the measuring devices.Type: GrantFiled: May 2, 1989Date of Patent: November 27, 1990Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Misao Shimizu, Hajime Takeuchi, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4924482Abstract: The analog data representing a value measured of a product by means of a measuring device such as a vernier calipers is converted into digital data by an analog-to-digital converter. A CPU incorporates the digital data into a data message. The CPU is driven by a clock signal output from a quartz crystal oscillator. A first frequency divider divides the clock signal, thus generating a signal of a first frequency, and a second frequency divider divides the clock signal, thereby generating a signal of a second frequency. During the duration of each digital data signal at the "0" (low) level, the CPU generates a signal at the "low" or "high" level, in accordance with the signal generated by the first frequency divider. Similarly, during the duration of each digital data signal at the "1" (high) level, the CPU generates a signal at the "low" or "high" level, in accordance with the signal generated by the second frequency divider. The signals generated by the CPU are supplied to a transmitter.Type: GrantFiled: April 28, 1989Date of Patent: May 8, 1990Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Misao Shimizu, Hajime Takeuchi, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4914609Abstract: An oscillator outputs an oscillator frequency corresponding to a moving distance of a probe. A counter counts the oscillator frequency of the oscillator. A computer calculates the moving distance. A display unit displays the moving distance computed by the computer. A voltage booster and a voltage stabilizing circuit are connected between the oscillator and a battery. The driving voltage from the battery is supplied to the oscillator through the voltage booster and the voltage stabilizing circuit, and is supplied to the counter, computer and the display unit without passing through the voltage booster and the voltage stabilizing circuit in order to reduce the power dissipation.Type: GrantFiled: July 25, 1988Date of Patent: April 3, 1990Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4914610Abstract: When a probe of a displacement measuring apparatus is moved, a core member connected to the probe is also moved through coils of an oscillator. A movement distance of the probe is calculated in accordance with a change in an oscillation frequency generated in correpondence with the movement of the core member. If strict displacement measuring is to be performed, the non-linear relationship between the moving distance of the core member and the change in the oscillation frequency must be taken into account, i.e., the relationship therebetween is measured in linear manner, the movement distance is calculated and then secondary curvature correction is performed to correct for the linear measurement. Therefore, measurement precision of the displacement measuring apparatus can be greatly improved as compared to that of a conventional displacement measuring apparatus.Type: GrantFiled: July 25, 1988Date of Patent: April 3, 1990Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4910753Abstract: An FSK shift keying device includes a detector for detecting a transmission frame consisting of a preamble, data, and a postamble, a time constant circuit charged in response to a voltage signal detected by the detector for generating a time constant, a charging voltage being determined in accordance with the time constant set in correspondence with a duration of high level in the preamble of the transmission frame, a reference voltage generator for generating a reference voltage signal having an amplitude value which is 1/2 an amplitude value of the voltage signal from the detector, and further generating a comparison reference voltage signal obtained by subtracting the reference voltage from the charging voltage, and a comparator for comparing the comparison reference voltage signal with the voltage signal input from the detector.Type: GrantFiled: August 22, 1988Date of Patent: March 20, 1990Assignee: Man Design Co., Ltd.Inventors: Yoshio Wakatsuki, Hajime Takeuchi, Giichiro Shimizu
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Patent number: 4897857Abstract: An FSK shift keying device includes a detector for detecting a transmission frame consisting of a preamble, data, and a postamble, a leading edge detector for detecting a leading edge of a voltage signal detected by the detector, a microprocessor for receiving a detection signal output from the leading edge detector as an interrupt signal, and resetting and restarting a timer, the timer for counting a time lapse in accordance with a clock signal from a clock generator, a sample and hold circuit for holding the voltage signal output from the detector when the time lapse counted by the timer reaches a duration of the preamble, a reference voltage generator for generating a reference voltage signal having an amplitude value which is 1/2 an amplitude value of the voltage signal from the detector, and a comparator for comparing the reference voltage signal with the voltage signal from the sample and hold circuit.Type: GrantFiled: August 22, 1988Date of Patent: January 30, 1990Assignee: Man Design Co., Ltd.Inventors: Yoshio Wakatsuki, Hajime Takeuchi, Giichiro Shimizu
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Patent number: 4896110Abstract: In a length measuring apparatus, a measurement probe includes a core and is movable in an axial direction of the probe. First to third coils are arranged in an order in a moving area of the core in accordance with the movement of the probe. In the B-phase, the first and second coils are primary and the second and third coils are secondary. In the A-phase, the second and third coils are primary and the first and second coils are secondary. CPU first sets a switch in the B-phase and then in the A-phase. A moving amount of the core is calculated from secondary voltage data in both the B-phase and the A-phase.Type: GrantFiled: July 25, 1988Date of Patent: January 23, 1990Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4872124Abstract: At the start of measurement by a length measuring device, a calibration coil in which the temperature characteristics are known, is connected to an oscillator. The oscillation frequency of the oscillator at this time is counted by a counter and is given to microcomputer. Microcomputer obtains temperature information corresponding to counted numbers with reference to a table of counted numbers versus temperature information which has already stored temperature information corresponding to a plurality of counted numbers and stores the obtained temperature information in a data storage area. In measurement mode, measured values subjected to temperature compensation are obtained according to the temperature information stored in the data storage area.Type: GrantFiled: July 25, 1988Date of Patent: October 3, 1989Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Toshiharu Okuyama, Yoshio Wakatsuki
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Patent number: 4852264Abstract: An oscillator oscillates at a frequency determined by the distance moved by a probe. The probe in contact with an object under measurement, moves according to the displacement of the object. A controller computes the distance moved by the probe from a reference position at predetermined time intervals by using the shift of the oscillating frequency of the oscillator. The controller further decides if the computed distances are within a predetermined range. If the computed distances moved are within that range, the controller supplies the computed distance moved to a transmitter, which in turn wirelessly transmits the distance. When the computed distance moved is outside the predetermined range, the controller does not output the distance moved to the transmitter, nor does it supply the distance moved every four computations of the distance moved.Type: GrantFiled: July 25, 1988Date of Patent: August 1, 1989Assignee: Man Design Co., Ltd.Inventors: Giichiro Shimizu, Toshiharu Okuyama, Yoshio Wakatsuki