Patents Assigned to Hajime Industries, Ltd.
  • Patent number: 4318081
    Abstract: An object recognition or inspection system with special features is disclosed, in which an object to be inspected is photoimaged by a photo image sensing device. While forming a comparative control signal by processing the horizontal as well as vertical synchronizing signals contained in a complex video signal from the photo image sensing device, at the same time by supplying the video signal from the photo image sensing device and the reference signal from a reference signal generator, to a comparator, and by further supplying the comparative control signal to the comparator only during the period as specified by the comparative control signal, the video signal is compared with the reference signal at the comparator and an inspection start signal is generated from the comparator and then such inspection start signal is supplied to the inspection system to start the inspection of the object recognition system.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: March 2, 1982
    Assignee: Hajime Industries Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4318080
    Abstract: A data processing system is disclosed in which analog input information or data is fed to a plurality of analog memories each of which receives different input information and has different data processing characteristics and in which discrete analog signal values from the analog memories are converted into digital information.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: March 2, 1982
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4314279
    Abstract: An image processing system including a matrix array camera apparatus and an image signal processing apparatus. The camera apparatus includes a matrix arranged image sensing devices consisting of a plurality of picture elements, vertical and horizontal clock signal generators, odd and even number transfer members and a shift register. In this case, from the matrix array camera apparatus an image data of the picture elements lined horizontally from at least 2 neighboring lines is delivered.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: February 2, 1982
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4305658
    Abstract: A moving object inspection system is disclosed in which a stroboscope radiation is made on an object to be inspected, the object is picked up by a television camera, a position detection device provides a position detection signal when the object arrives at a specified position, and an object inspection apparatus is provided. In this apparatus the period including before and after the horizontal synchronizing signal from the television camera is set as an inspection intermission period during which no inspection for the object is conducted, and the stroboscope radiation is carried out at the same timing as the position detection signal when the position detection signal arrives at the same time as the vertical synchronizing signal from the television camera, or at the beginning of the inspection intermission period immediately after the position detection signal when the position detection signal arrives at any other time than with the vertical synchronizing signal.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: December 15, 1981
    Assignee: Hajime Industries Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4302773
    Abstract: A defect inspection system which inspects the defects on an object to be inspected by photosensing the inspected object with a monochrome television camera. A pair of detection circuits are provided which receive such image signal corresponding to the inspected object from the television camera and have different sensitivities so that both or only one of the pair outputs a signal in accordance with the rate of change of the image signal level with respect to time. Both of the outputs from the pair of detection circuits are supplied to a mixer circuit. In this case, the mixer circuit is so formed that it will only output a defect detection signal when only one of the above mentioned pair of detection circuits shall output a signal.
    Type: Grant
    Filed: February 14, 1980
    Date of Patent: November 24, 1981
    Assignee: Hajime Industries Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4295120
    Abstract: A screen is formed of a plurality of picture elements arranged in horizontal and vertical direction. The screen is consecutively scanned by a photo sensor while a pattern to be recognized is projected onto the screen, or is placed therein. The screen is divided into small picture frames containing at least two each horizontal and vertical neighboring picture elements which total a minimum of 2.times.2=4 picture elements. The output of the photo sensor is supplied to a delay means which is controlled so that the data of the plurality of small picture frames is obtained, and then processed for segregation by difference of type so that the peculiar data corresponding to the pattern projected or placed onto the screen is obtained.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: October 13, 1981
    Assignee: Hajime Industries Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4284353
    Abstract: A light source, a light projecting body, a plurality of optical fiber bundles and a sensor is provided. The light projecting body is provided with a central bore along which the sensor is aligned and a plurality of passages for a respective fiber bundle extending therethrough in communication with the central bore. The central bore is equal to or larger than the mouth of the bottle to be examined and the apertures terminate in connection with the central bore at a point lying in a circle on the central bore corresponding substantially to the periphery of mouth of the bottle, the longitudinal direction of the passages are substantially coincident with a tangent to their associated terminal point.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: August 18, 1981
    Assignees: Hajime Industries Ltd., Nihon Pillow Block Mfg. Co.
    Inventors: Hajime Yoshida, Takashi Aoki, Kei Nishida
  • Patent number: 4277802
    Abstract: A defect inspection system which features the inspection of an object to be inspected by optically matching the lights from a standard subject and the inspected object, whereas, an image signal is formed by a monochrome television camera based upon, and by having a plurality of detection sections which output signals corresponding to the rate of changes of the image signal with respect to time, so that although all of the above mentioned detection sections output signals when the above mentioned standard subject and the inspected object match, when the above mentioned inspected object does not match the standard subject, some of the above mentioned detection sections shall output signals while the other detection sections shall not output signals by arrangements of the sensitivities of the above mentioned plurality of detection sections, so that a defect detection signal is output whenever some of the above mentioned detection sections output no signals.
    Type: Grant
    Filed: February 14, 1980
    Date of Patent: July 7, 1981
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4259662
    Abstract: A threshold setting circuit having a detector for detecting the brightest or highest level of a screen which consists of a plurality of picture elements and a device for setting a threshold value by suitably reducing the brightest or highest level detected by the detector.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: March 31, 1981
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4246606
    Abstract: An inspection apparatus for inspecting an object is disclosed, in which an object to be inspected and/or a reference body are picked up by an image sensing device such as a television camera and an output video signal from the television camera is processed by a video signal processing circuit. In this case, a reference or calibration body is located within a visual field of the television camera and picked up by the television camera together with said reference body and/or calibration body under the irradiation of light, a signal corresponding to the calibration body included in the video signal from the television camera is detected and this detected signal is used to correct the video signal. The corrected video signal is applied to a computer to judge whether the object is same as the reference body or not.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: January 20, 1981
    Assignee: Hajime Industries Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4240107
    Abstract: A pattern information processing method is disclosed in which a video signal of an object from a television camera is divided at a plurality of different threshold levels, a clock pulse is gated with the divided video signals, the number of gated clock pulses by each of the divided video signals is counted, and a number of series is provided from the counted numbers of the clock pulses. This series is used to represent a pattern of the object.Further, a pattern information processing apparatus is disclosed which has a television camera providing a video signal of an object, devices producing plural threshold levels different from one another, circuits dividing the video signal by the plurality of different threshold levels, circuits gating a clock pulse from a clock pulse generator by the divided video signals, and counters counting the numbers of the gated clock pulses to provide a number series which represents the object.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: December 16, 1980
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4223790
    Abstract: A container inspection system is disclosed in which an ultrasonic wave pulse is impinged on an object such as a container to be detected or inspected, the ultrasonic wave pulse modulated with the inherent vibration of the object is received, the modulated ultrasonic wave pulse is converted into a corresponding electrical signal, and the electrical signal is compared with a reference signal for discriminating whether the container is good or not. This system further includes a device for segregating bad and good objects in response to the inspection result thereof.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: September 23, 1980
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4218673
    Abstract: A pattern matching method for recognizing a pattern projected on a picture screen consisting of a plurality of picture elements by scanning the screen in which the plurality of picture elements are divided into a plurality of picture element groups, each group consisting of a plurality of picture elements, a sum of informations within each of the plural picture element groups is obtained, and the total sum of the information amounts of the picture element groups are used to represent the pattern on the picture screen.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: August 19, 1980
    Assignee: Hajime Industries, Ltd.
    Inventor: Hajime Yoshida
  • Patent number: 4201977
    Abstract: An information signal processing system for use with a pattern recognition system which includes a converting device for converting information signals of an object or pattern to be recognized into electric signals including a sampling circuit for sampling the electric signal from the converting device, a circuit receiving the electric signal and producing a signal to be supplied to the sampling circuit to determine the sampling time, and a computer receiving the output signals from said sampling circuit and sequentially comparing them with reference signals stored therein. In this case, the information signal processing system includes a circuit which receives the electric signal from the converting device and produces a signal which approximates the electric signal. This approximated signal is supplied to the sampling circuit.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: May 6, 1980
    Assignee: Hajime Industries, Ltd.
    Inventor: Toshiyuki Shimizu