Patents by Inventor Kazunari Aoyama
Kazunari Aoyama 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: 9857411Abstract: An electronic device including a printed circuit board has a degradation detection circuit that detects degradation of the printed circuit board at a plurality of different degradation levels, and a warning output unit that outputs a warning in accordance with the degradation level detected by the degradation detection circuit.Type: GrantFiled: February 3, 2015Date of Patent: January 2, 2018Assignee: FANUC CorporationInventors: Kazunari Aoyama, Kunitaka Komaki, Yasumichi Sakoda
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Patent number: 9753688Abstract: Provided is a motor control system of a numerical controller that can instruct a plurality of motors and display data on a display device by means of a single serial bus. An amplifier which controls the motor drives the motor based on a motor command received from the numerical controller via the serial bus. The display device display data on a screen based on display data received from the numerical controller via the serial bus.Type: GrantFiled: August 12, 2014Date of Patent: September 5, 2017Assignee: FANUC CorporationInventors: Kazunari Aoyama, Kunitaka Komaki
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Publication number: 20150219713Abstract: An electronic device including a printed circuit board has a degradation detection circuit that detects degradation of the printed circuit board at a plurality of different degradation levels, and a warning output unit that outputs a warning in accordance with the degradation level detected by the degradation detection circuit.Type: ApplicationFiled: February 3, 2015Publication date: August 6, 2015Inventors: Kazunari AOYAMA, Kunitaka KOMAKI, Yasumichi SAKODA
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Publication number: 20150077031Abstract: A numerical control device including a numerical controller, a robot controller, a servo control module and an I/O control module connected to the numerical controller and the robot controller, and an amplifier connecting bus connecting the servo control module and a servo amplifier, and an I/O device connecting bus connecting an I/O control module and an I/O interface device. The machine-tool-side and robot-side servo amplifiers are daisy-chained and the machine-tool-side and robot-side I/O interface devices are daisy-chained.Type: ApplicationFiled: September 11, 2014Publication date: March 19, 2015Applicant: FANUC CORPORATIONInventors: Naoki Sugitani, Kazunari Aoyama
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Publication number: 20150054839Abstract: Provided is a motor control system of a numerical controller that can instruct a plurality of motors and display data on a display device by means of a single serial bus. An amplifier which controls the motor drives the motor based on a motor command received from the numerical controller via the serial bus. The display device display data on a screen based on display data received from the numerical controller via the serial bus.Type: ApplicationFiled: August 12, 2014Publication date: February 26, 2015Inventors: Kazunari AOYAMA, Kunitaka KOMAKI
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Publication number: 20140316565Abstract: A numerical controller includes a numerical control unit for executing a numerical control program, a robot control unit for executing a robot program, a multicore processor having a plurality of cores, and a peripheral control LSI. The numerical control unit is assigned to one of the cores of the multicore processor and the robot control unit is assigned to one of the others. The multicore processor is connected to an internal bus of the numerical controller via the peripheral control LSI.Type: ApplicationFiled: April 16, 2014Publication date: October 23, 2014Applicant: FANUC CorporationInventor: Kazunari AOYAMA
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Publication number: 20140042950Abstract: A numerical controller includes a multicore processor, an integrated peripheral control LSI, a motor control section and an amplifier interface section. The multicore processor has two cores. One is assigned as a numerical control section processor core, and the other is assigned as a programmable machine controller section processor core. The motor control section is composed of a motor control section processor and a peripheral control LSI.Type: ApplicationFiled: July 31, 2013Publication date: February 13, 2014Applicant: FANUC CorporationInventors: Kazunari AOYAMA, Kunitaka KOMAKI
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Patent number: 8055812Abstract: An amplifier (unit) linked via a daisy type serial bus sends a transmission start signal SC and then sends the local data DATAn. If data from an amplifier at the downstream side is not received before transmission of the local data DATAn is completed, the delimit of the data from each amplifier is changed by adding an idle time data TIDD.Type: GrantFiled: November 19, 2007Date of Patent: November 8, 2011Assignee: Fanuc LtdInventors: Kazunari Aoyama, Kunitaka Komaki, Yasuharu Aizawa
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Patent number: 8054028Abstract: A table containing correspondence between “n” and “m” is set in a control circuit of a servo control system so that the current command data in the m-th (m=1, 2, 3 . . . ) current command register is assigned to the n-th (n=1, 2, 3 . . . ) servo amplifier. When data is specified in this table to satisfy “n=m”, the current command data in the n-th current command register is passed to the n-th servo amplifier. When “m=1” is set for “n=1” and “m=1” is set for “n=2” in this table, the current command data stored in the first current command register is passed to the first and second servo amplifiers.Type: GrantFiled: November 13, 2008Date of Patent: November 8, 2011Assignee: FANUC LtdInventors: Kazunari Aoyama, Kunitaka Komaki, Yasuharu Aizawa
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Patent number: 7839110Abstract: A motor control system includes a first-type amplifier that receives a PWM instruction, a second-type amplifier that receives a positional instruction, a numerical control device, and a serial bus. The numerical control device includes a first processor that calculates a positional instruction of a motor, a DSP that calculates a PWM instruction of the first-type amplifier from the positional instruction, and a serial bus control circuit that outputs the PWM instruction of the first-type amplifier and the positional instruction of the second-type amplifier to the serial bus. The first-type amplifier generates a drive current signal of a motor directly from the received PWM instruction. The second-type amplifier includes a third processor that calculates a PWM instruction from the received positional instruction.Type: GrantFiled: March 4, 2008Date of Patent: November 23, 2010Assignee: Fanuc LtdInventors: Kazunari Aoyama, Kunitaka Komaki, Yasuharu Aizawa
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Patent number: 7653768Abstract: A data transfer method for connecting a master unit on an upstream side and a plurality of slave units on an downstream side in series with serial bus by a daisy chain system and transferring data having an appended error check code or error correction code between a data transmitter and a data receiver, the data transfer method including: transferring the data flowing in the serial bus in the slave unit from the data transmitter to the data receiver without performing an error check or error correction; performing an error check of the data in a circuit provided in the slave unit aside from a circuit in which the data flow; and informing a result of the error check to the master unit individually by the slave unit, which has performed the error check of the data.Type: GrantFiled: August 23, 2007Date of Patent: January 26, 2010Assignee: Fanuc LtdInventors: Kazunari Aoyama, Kunitaka Komaki, Masahiro Miura
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Publication number: 20090195206Abstract: A table containing correspondence between “n” and “m” is set in a control circuit of a servo control system so that the current command data in the m-th (m=1, 2, 3 . . . ) current command register is assigned to the n-th (n=1, 2, 3 . . . ) servo amplifier. When data is specified in this table to satisfy “n=m”, the current command data in the n-th current command register is passed to the n-th servo amplifier. When “m=1” is set for “n=1” and “m=1” is set for “n=2” in this table, the current command data stored in the first current command register is passed to the first and second servo amplifiers.Type: ApplicationFiled: November 13, 2008Publication date: August 6, 2009Applicant: FANUC LTDInventors: Kazunari AOYAMA, Kunitaka KOMAKI, Yasuharu AIZAWA
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Patent number: 7525263Abstract: A master unit and a plurality of slave units are connected by way of a communication path. The master unit sends to the slave units timing signals generated by its own cycle signal generator by way of a communication path. The slave units determine the cycle difference and the phase difference between a timing signal generated by its own cycle signal generator and the timing signal sent from the master unit and, in accordance therewith, determine a cycle adjustment amount. The cycle signal generators of the slave units adjust the timing signal cycle based on the cycle adjustment amount.Type: GrantFiled: February 7, 2007Date of Patent: April 28, 2009Assignee: Fanuc LtdInventors: Kazunari Aoyama, Minoru Nakamura, Takaaki Komatsu
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Patent number: 7519113Abstract: Noise detection is performed by using the output of the phase comparator that the PLL comprises. The phase comparator outputs a signal that is based on the phase difference between the output of the voltage controlled oscillator and the reference signal. The phase difference reflects the effect of noise on the PLL and, in addition to the characteristics of the noise itself, such as the wave height value of the noise and the frequency component thereof, reflects the tolerance of the PLL to noise, whereby the level of risk that the system can actually be caused to malfunction can be judged.Type: GrantFiled: January 19, 2005Date of Patent: April 14, 2009Assignee: Fanuc LtdInventors: Kazunari Aoyama, Minoru Nakamura, Masahiro Miura
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Patent number: 7432674Abstract: A transmission path delay is set in a shift setting register. A slave unit generates a PRE_ITP signal in response to a timing signal (ITP signal) issued by a master unit. The phase difference between this PRE_ITP signal and the ITP signal unique to the slave unit is loaded into a period modification counter. A timer corrects a reference value, outputs position/speed control period signals (SYN signals) and counts down the period modification counter with these SYN signals until the period modification counter reaches zero. Furthermore, the ITP signal unique to the slave unit is outputted every time a predetermined number of the SYN signals are outputted.Type: GrantFiled: March 3, 2006Date of Patent: October 7, 2008Assignee: Fanuc Ltd.Inventors: Kazunari Aoyama, Kunitaka Komaki, Minoru Nakamura, Takaaki Komatsu
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Publication number: 20080238351Abstract: A motor control system in which one numerical control device controls a first-type amplifier without a DSP and a second-type amplifier with a DSP, and the cost of which has been reduced by reducing the number of interface circuits (serial bus control circuits) to be provided in the numerical control device has been disclosed.Type: ApplicationFiled: March 4, 2008Publication date: October 2, 2008Applicant: FANUC LTDInventors: Kazunari AOYAMA, Kunitaka KOMAKI, Yasuharu AIZAWA
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Patent number: 7428686Abstract: A controller has a plurality of modules connected to each other via buses. On the transmitter side of each module, detection/correction code generation circuit for address/command and detection/correction code generation circuits for each kind of data are switched over according to information to be transmitted by a transmitter selection circuit, and then the data is transmitted with ECC code attached. On the receiver side, a receiver selection circuit selectively switches over an error detection/correction circuit for address/command and error detection/correction circuits for each kind of data to detect and correct errors.Type: GrantFiled: December 4, 2003Date of Patent: September 23, 2008Assignee: Fanuc LtdInventors: Kazunari Aoyama, Minoru Nakamura, Yutaka Sakai
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Publication number: 20080123723Abstract: An amplifier (unit) linked via a daisy type serial bus sends a transmission start signal SC and then sends the local data DATAn. If data from an amplifier at the downstream side is not received before transmission of the local data DATAn is completed, the delimit of the data from each amplifier is changed by adding an idle time data TIDD.Type: ApplicationFiled: November 19, 2007Publication date: May 29, 2008Applicant: FANUC LTDInventors: Kazunari Aoyama, Kunitaka Komaki, Yasuharu Aizawa
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Publication number: 20080052417Abstract: A data transfer method for connecting a master unit on an upstream side and a plurality of slave units on an downstream side in series with serial bus by a daisy chain system and transferring data having an appended error check code or error correction code between a data transmitter and a data receiver, the data transfer method including: transferring the data flowing in the serial bus in the slave unit from the data transmitter to the data receiver without performing an error check or error correction; performing an error check of the data in a circuit provided in the slave unit aside from a circuit in which the data flow; and informing a result of the error check to the master unit individually by the slave unit, which has performed the error check of the data.Type: ApplicationFiled: August 23, 2007Publication date: February 28, 2008Applicant: FANUC LTDInventors: Kazunari AOYAMA, Kunitaka KOMAKI, Masahiro MIURA
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Publication number: 20080013279Abstract: A heat sink including a base and a plurality of upright heat-radiating projections provided on the base. The heat-radiating projections include a first projection having a first rigidity, and a second projection having at least a second rigidity partially lower than the first rigidity. The second projection is located along an outer periphery of an array or configuration of the plurality of heat-radiating projections on the base.Type: ApplicationFiled: June 26, 2007Publication date: January 17, 2008Applicant: FANUC LTDInventors: Kazunari AOYAMA, Minoru NAKAMURA, Masahiro MIURA