Patents Assigned to Denso Wave Incorporated
  • System and method for reading an information code
    Patent number: 11138483
    Abstract: In a system, mobile terminal and a reader are communicable with each other. In the mobile terminal, a terminal tilt state is detected by a detecting unit as a terminal environmental state, an information code is generated such that the detected terminal environmental state and predetermined information are recorded in the information code, and the generated information code is displayed on the screen of a display unit. In the reader, a reading surface tilt state corresponding to the terminal environmental state is detected by a detecting unit as a reading surface environmental state. When the reader reads the information code and the detected reading surface environmental state and the detected terminal environmental state show the same environmental state, the read predetermined information is used by a control unit to perform processing based on the predetermined information.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: October 5, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventors: Ryo Ozawa, Kenichi Yoshida
  • INFORMATION CODE READING SYSTEM, INFORMATION CODE READER, AND INFORMATION CODE
    Publication number: 20210303810
    Abstract: There is provided an information code in which first cells have lightness that is intermediate between lightness of second cells and lightness of a predetermined marginal area. The first cells and the second cells are configured to have a difference in lightness therebetween sufficiently smaller than a difference in lightness between the first cells and the predetermined marginal area, in a predetermined area occupying at least a part of the code area. There is also provided an information code reader in which colors of an image of the information code captured by an imaging unit are corrected such that the difference in lightness between the first and second cells increases. Using the corrected image, decoding processing is performed to decode the information code.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Wataru SUGIYAMA
  • Functional safety module for industrial devices
    Patent number: 11131981
    Abstract: The present disclosure provides a functional safety module for industrial devices, the functional safety module being connected between the industrial devices to manage safety according to a state of the industrial devices. The functional safety module may include a first controller and a second controller each configured to execute a common predetermined operation command including operation commands. The first controller is configured to output digital signals, and sequentially convert the digital signals into analog voltages. The second controller is configured to receive the analog voltages, sequentially converts the analog voltages, and outputs the digital signals, and determine whether the first controller is normal.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: September 28, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventor: Masayasu Yoshigi
  • Input and output apparatus provided with microcomputer powered from DC-DC converter and configured to operate on clock signal
    Patent number: 11106234
    Abstract: An input/output apparatus for a PLC includes at least first and second sub-systems. In each sub-system, a DC-DC converter controls a voltage of an external power supply to a target voltage by switching a PWM signal, and a microcomputer is driven by a clock signal. In the microcomputer, a PWM signal generating unit generates the PWM signal and a frequency analyzing unit samples an inputted voltage at a cycle shorter than a cycle of the PWM signal, and analyzes the frequency of the inputted voltage. The frequency analyzing unit acquires a frequency of the PWM signal from the frequency of the inputted voltage, calculates a frequency of the clock signal, and outputs an abnormality-notifying signal when the frequency of the clock signal falls outside a prescribed range. An output voltage of the DC-DC converter of the first sub-system is inputted to the frequency analyzing unit of the second sub-system.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: August 31, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventor: Takashi Hanai
  • Method for estimating water content, and estimation device
    Patent number: 11092336
    Abstract: In a method for estimating water content of exhaust gas, a first gas concentration at a first position in an exhaust passage, a second gas concentration at a second position downstream of the first position, and a gas temperature at the second position are obtained. A saturated water vapor at the gas temperature is calculated as a water content at the second position. By using the water content at the second position and the second gas concentration, an excess air amount of a fuel-air mixture supplied to a combustion apparatus is calculated based on a chemical reaction formula of combustion of the mixture. By using the excess air amount and the first gas concentration, a water content at the first position is estimated.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: August 17, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventor: Yotaro Murakami
  • TAG MEASUREMENT ENVIRONMENT EVALUATION DEVICE
    Publication number: 20210248902
    Abstract: A tag measurement environment evaluation device includes a processor and a memory storing a program. The program is configured to, when executed by the processor, cause the processor to determine a moving tag evaluation value of each of a plurality of wireless tags based on a radio wave transmitted from each of the wireless tags and received by a tag reader configured to communicate with each of the wireless tags, and determine whether a measurement environment is suitable for a moving tag detection based on the moving tag evaluation values.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 12, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Masayuki OGAWA
  • CONTROL DEVICE FOR INDUSTRIAL MACHINES
    Publication number: 20210231748
    Abstract: A control device for industrial machines includes a plurality of signal input-output circuits configured such that pulse widths of pulse signals output from the signal input-output circuits are different from each other. The control device detects a fault when a pulse signal output from one of the signal input-output circuits has a pulse width different from the pulse width set to the one of the signal input-output circuits.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Takeru MORISHITA
  • Device for detecting positional relationship among objects
    Patent number: 11049279
    Abstract: Information codes each having a predetermined size, in which specific information for specifying the type of item is recorded, are provided by using shelf boards at positions where the respective types of the items are displayed on a display shelf. When two or more information codes whose specific information is read are included in one captured image captured by an imaging unit while no detected code is stored in the storage unit, the relative positional relationship among the two or more information codes is detected based on the sizes of the information codes. Further, when the captured image is determined as a partially undetected state, in which an undetected code is included together with at least one detected code, the relative positional relationship of the undetected code relative to the detected code is detected based on the size of the reference code.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 29, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventors: Takuya Yoda, Tsu Ryo
  • AIR CONDITIONING CONTROLLER FOR CONTROLLING AN AIR CONDITIONER
    Publication number: 20210184672
    Abstract: An air conditioning controller for controlling an air conditioner by an operation of an operator. The air conditioning controller is convenience to the operator to carry. The air conditioning controller includes a controller unit having an operating part by which the operator operates the air conditioner, a holder holding the controller unit at a predetermined position, and an electrical switch for switching an electrical power supply line between a first position that the controller unit positions outside of the holder and that the electric power from an internal battery is supplied to a controlling part of the controller unit and a second position that the controller unit positions in the holder and that the electric power from an electrical power source is supplied to the controlling part of the controller unit.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Yuya MORITA
  • ROBOT OPERATION TERMINAL
    Publication number: 20210182368
    Abstract: A robot operation terminal includes multiple application programs. The robot operation terminal is connected to a controller that controls a robot, and the robot operation terminal receives an input operation carried out by an operator to operate or set the robot. In each of application programs, a necessity of an inbuilt login is set to confirm an operation authority of the operator.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventors: Mizuki NAKAMURA, Hirota TOUMA, Tomoya YAMAMOTO
  • SUPPORTING APPARATUS FOR PROGRAMING A ROBOT OPERATION
    Publication number: 20210178586
    Abstract: A supporting apparatus for programing a robot operation has a display by which an operator sees a movement trajectory corresponding to a movement of the robot and by which the operator is supported to provide a program including moving order and non-moving order. The supporting apparatus for programing has a first operating portion describing a target position of each of the moving orders superimposed with the movement trajectory by using a first code, and a second operating portion describing a number of the non-moving orders operated at the target position by using a second code.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 17, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventors: Anna MATSUDO, Toshitaka SUZUKI, Yuto MITSUMA
  • AIR CONDITIONING CONTROLLER FOR CONTROLLING AN AIR CONDITIONER
    Publication number: 20210180813
    Abstract: The object of the present disclosure is to provide the air conditioning controller which is convenience to reset the malfunction of the touch panel. An air conditioning controller has a display displaying a graphical information, a touch panel positioned on the display and on which an operator touches for controlling an air conditioning unit, a touch IC for detecting a change of a static electricity occurred on the touch panel when the operator manipulates the touch panel, and a controlling part sending a commanding order to the air conditioning unit by receiving a signal detected by the touch IC. The controlling part determines whether an IC resetting condition is set by using the operator's manipulation manipulating the touch panel and resets the touch IC when the IC resetting condition is detected while an operation of the air conditioning controller is kept.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventors: Shunya AOKI, Yuya MORITA
  • CALIBRATION OPERATION SUPPORT DEVICE FOR INDUSTRIAL CAMERA
    Publication number: 20210176394
    Abstract: A calibration operation support device is applied to a system including an industrial camera and a display device displaying a predetermined image that is an image of a predetermined area being captured by the industrial camera, and includes a processing device configured to perform a calibration of the industrial camera based on captured images that are obtained by capturing a calibration pattern by the industrial camera. The processing device is further configured to instruct the display device to display positions of the calibration patterns in the captured images acquired as images to be used for the calibration in a manner superimposed on the predetermined image.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 10, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventors: Keiji OKUHARA, Tsuyoshi UEYAMA
  • Apparatus for detecting tag movements and wireless tag reader
    Patent number: 11030424
    Abstract: A configuration which can easily discriminate a moving wireless (radio) tag from a stationary wireless (radio) tag. The configuration uses an antenna to measure phases of response waves received from a wireless tag. Based on the measurements, the configuration measures changes in distance from the wireless tag to the antenna and detects travel of the wireless tag. Based on the measurements, the configuration measures changes in velocity of the wireless tag relative to the antenna. A wireless tag having a rate of changes in signs of the velocity, of not less than a predetermined value in the measured velocity changes, is detected as being a stationary tag.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 8, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventors: Masayuki Ogawa, Kohei Enomoto, Yusuke Masuda
  • TOUCH PANEL EQUIPMENT FOR AIR CONDITIONING
    Publication number: 20210165530
    Abstract: A touch panel equipment for air conditioning has a plurality of electrodes arranged in two-dimensional matrix, a touch sensing IC for scanning capacitance of the electrodes, and a touch panel controller for deciding a touch position from the capacitance sensed by said touch sensing IC. The touch panel controller resets the touch sensing IC when the capacitance of the electrodes located in a check area is not changed during predetermined threshold timings, and does not reset the touch sensing IC when the capacitance of the electrodes located in the check area is changed within the threshold timings. As the touch panel controller resets the touch sensing IC due to the change of the capacitance value of the electrodes located in the check area, the resetting operation is operated automatically so that the touch panel equipment could avoid the user's external work.
    Type: Application
    Filed: September 25, 2020
    Publication date: June 3, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventors: Shunya AOKI, Yuya MORITA, Toru HATTORI
  • CONTROLLING APPARATUS FOR INDUSTRIAL PRODUCTS
    Publication number: 20210157291
    Abstract: The controlling apparatus for an industrial product of this disclosure has a couple of microcomputers each of which has a CPU and a memory and each of which runs the same controlling program as well as the same diagnostic program sequence parallelly and simultaneously. After the CPU of the microcomputer writes the calculated result of the diagnostic program sequence in the predetermined area of the storing area for monitoring value, such CPU send the same calculated result to the other one of the microcomputers (receiving microcomputer). The CPU of the receiving microcomputer makes a diagnosis for finding whether or not the received result is identical with its own calculated result.
    Type: Application
    Filed: September 1, 2020
    Publication date: May 27, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Riho UCHIZAWA
  • Speed detection apparatus of rotational shaft in robot arm
    Patent number: 11018557
    Abstract: An speed detection apparatus of a rotational shaft in a robot arm that is applied to a drive mechanism is provided. The speed detection apparatus includes: first and second rotation sensors that are disposed on a side of a rotational shaft of the robot arm and outputs first and second rotational position signals with a phase difference of 90 degrees; first and second differentiators that differentiate the first and second rotational position signals; and a speed calculator that obtains a rotational speed of the robot arm by calculating a sum of squares of a first differential signal and a second differential signal.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 25, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventor: Kenji Nagamatsu
  • Optical information reader
    Patent number: 11010573
    Abstract: An optical information reader includes a reflective member that reflects illumination light emitted from an illuminant toward a reading surface, and an image former ensured to present an imaging target held over the reading surface within an imaging region of an imager. The imaging region includes a first imaging region defined between the image former and the reading surface, and a second imaging region defined between the reading surface and the reflective member so as to be continuous to the first imaging region when light is internally reflected on the reading surface inside the housing. The reflective member is arranged outside the first imaging region, while the illuminant, the imager and the image former are arranged outside the second imaging region. The illuminant emits illumination light toward a reflecting surface of the reflective member in the second imaging region.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: May 18, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventors: Ryosuke Araki, Kyosuke Ikeda
  • Authentication system
    Patent number: 10997811
    Abstract: An authentication system includes a portable terminal carried by a user, a controller that authenticates the portable terminal, and a human detection portion that is configured to detect a person existing within a predetermined detection range. The portable terminal includes a terminal-side communication portion that communicates with the controller and transmits an authentication request signal, which requests authentication of the portable terminal. The controller performs a normal-time notification process that notifies a message in which the portable terminal is authenticated, in response to that a predetermined operation is performed on an operation area after the portable terminal has been authenticated in a authentication process.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 4, 2021
    Assignee: DENSO WAVE INCORPORATED
    Inventor: Seiji Murakami
  • IMAGING DEVICE PROVIDED WITH EVENT-BASED CAMERA
    Publication number: 20210120186
    Abstract: An imaging device in which an autofocus function can be performed without using brightness information is provided. In an imaging device according to one aspect, a density of points obtained by plotting two-dimensional point data of a plurality of event data as points on a plane, the event data outputted from an imaging element in a predetermined period in a state in which a focal point of a light receiving lens is adjusted by an adjustment mechanism, is calculated as a point density. When the point density is calculated, a control unit drives and controls the adjustment mechanism based on comparison results between the point density currently calculated and the point density last calculated to thereby adjust the focal point toward the in-focus position. In another aspect, an imaging device having an autofocus function can be provided without using event data.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 22, 2021
    Applicant: DENSO WAVE INCORPORATED
    Inventor: Yusuke MITANI