Patents by Inventor Ryuichi Shiohara

Ryuichi Shiohara 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).

  • Patent number: 9924095
    Abstract: An image capturing device includes an image capturing unit capturing an image at a timing based on a first frame rate and outputs data corresponding to the image after a first period, an image data generation unit generating image data based on the output data and outputting the image data after a second period, a display unit displaying a display image based on the image data after the second period and at a timing based on a second frame rate, and a mode selecting unit selecting a first or second mode. The first mode prioritizes reduction in a display delay time. The second mode prioritizes image quality of the display image over reduction in the display delay time. A total period of the first and second periods is less than or equal to a first vertical synchronization period based on the first frame rate when the first mode is selected.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: March 20, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Patent number: 9918078
    Abstract: A method of measuring a display delay time includes a step where a display pattern displayed on a first display including i (i is a natural number greater than 2) display elements is switched to a display pattern other than the display pattern at every elapse of a pattern continuation time, and j (j is a natural number, 1<j<i) display elements brought into a first display state is switched at every elapse, a step where an image of the display pattern on the first display is captured, a step where the captured image is displayed on a second display, and a step where the display delay time from capturing the image on the first display to displaying the image on the second display is measured based on a difference between the display pattern on the first display and the display pattern on the second display.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: March 13, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Ryuichi Shiohara, Tatsuya Ichikawa
  • Publication number: 20180041729
    Abstract: An image-capturing device includes an image-capturing section, an image-data-generation section, a display section, and a timing generator. The image-capturing section is configured and arranged to capture an image of a subject at a timing on the basis of a vertical synchronization signal inputted and generate image-capture data corresponding to a frame. The image-data-generation section is configured and arranged to generate image data on the basis of the image-capture data corresponding to the frame. The display section is configured and arranged to display the image data. The timing generator is configured and arranged to output the vertical synchronization signal. The timing generator outputs the vertical synchronization signal at a variable timing in accordance with a generating condition of the image data corresponding to the frame. The image-capturing section generates the image-capture data corresponding to another frame at the timing on the basis of the vertical synchronization signal.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 8, 2018
    Inventor: Ryuichi SHIOHARA
  • Patent number: 9886893
    Abstract: A short delay time from imaging of an imaging element to displaying on a view finder is realized using a simple circuit configuration. An EVF controller includes a serial I/F that receives a command including the number of valid lines of one frame, a counter that counts the number of lines of which an image signal becomes valid, a data input unit that inputs a valid image signal based on a data enable signal, a data output unit that outputs the input valid image signal to an EVF, and a timing generation unit that compares a count value of the counter with the number of valid lines, detects an end of the input of the valid image signal in the frame based on a comparison result, and then starts a process for preparation for a next frame.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: February 6, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Publication number: 20170366777
    Abstract: An imaging device includes an image sensor that performs imaging operations at intervals of a predetermined sensor cycle, an image data generator that generates image data based on output data from the image sensor, and a display that displays an image represented by the image data within a second display scanning period whose length is shorter than a first display scanning period corresponding to a display cycle that is N times the sensor cycle (N being an integer larger than or equal to “2”) by a margin period.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 21, 2017
    Inventor: Ryuichi SHIOHARA
  • Patent number: 9848131
    Abstract: An imaging display device includes a lens unit, an imaging unit that outputs an imaging signal obtained by imaging, an image signal generating unit that generates an image signal by performing image processing in accordance with optical properties of the lens unit, a display unit that displays an image based on the image signal, and a timing control unit that controls the phase difference from the frame start of the imaging signal to the frame start of the image signal so as to be changed in accordance with a predetermined time required for the image processing.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 19, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Publication number: 20170353668
    Abstract: A display-data processor includes a first buffer, a display data generator, a second buffer, a timing signal generator, and a display data output circuit. The first buffer stores image data corresponding to an Nth line of a display. The display data generator generates display data corresponding to the Nth line of the display based on the image data. The second buffer stores the display data corresponding to the Nth line of the display. The timing signal generator outputs a horizontal synchronization signal corresponding to the Nth line of the display after the display data had been generated. The display data output circuit outputs the display data corresponding to the Nth line of the display within a horizontal synchronization period prescribed by the horizontal synchronization signal corresponding to the Nth line of the display after the horizontal synchronization signal corresponding to the Nth line of the display had been outputted. The horizontal synchronization period is variable.
    Type: Application
    Filed: August 8, 2017
    Publication date: December 7, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170347090
    Abstract: A method of measuring a display delay time includes a step where a display pattern displayed on a first display including i (i is a natural number greater than 2) display elements is switched to a display pattern other than the display pattern at every elapse of a pattern continuation time, and j (j is a natural number, 1<j<i) display elements brought into a first display state is switched at every elapse, a step where an image of the display pattern on the first display is captured, a step where the captured image is displayed on a second display, and a step where the display delay time from capturing the image on the first display to displaying the image on the second display is measured based on a difference between the display pattern on the first display and the display pattern on the second display.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Ryuichi SHIOHARA, Tatsuya ICHIKAWA
  • Patent number: 9813650
    Abstract: An image-capturing device includes an image-capturing section, an image-data-generation section, a display section, and a timing generator. The image-capturing section is configured and arranged to capture an image of a subject at a timing on the basis of a vertical synchronization signal inputted and generate image-capture data corresponding to a frame. The image-data-generation section is configured and arranged to generate image data on the basis of the image-capture data corresponding to the frame. The display section is configured and arranged to display the image data. The timing generator is configured and arranged to output the vertical synchronization signal. The timing generator outputs the vertical synchronization signal at a variable timing in accordance with a generating condition of the image data corresponding to the frame. The image-capturing section generates the image-capture data corresponding to another frame at the timing on the basis of the vertical synchronization signal.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: November 7, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Patent number: 9787925
    Abstract: An imaging device including an image sensor; an image data generation portion that generates image data on the basis of output data from the image sensor; a display portion that displays the image data within a display scanning period in a display cycle that is N times the sensor cycle (N>=2); and a display control portion that, when a partial image constituting the image and corresponding to a predetermined one of the lines forming the image has become ready for display on the basis of partial image data constituting the image data and representing the partial image, performs control of causing the display portion to start display of partial images constituting the image and corresponding to one frame, at a rate of once every N iterations of the imaging operation by the image sensor.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: October 10, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Patent number: 9769470
    Abstract: A method of measuring a display delay includes a first step where a first display device performs a switching operation of switching a display pattern displayed on a display unit of the first display device, a second step where a first camera captures a first image and displays the first image in a live view mode, a third step where a second camera captures a second image containing the first image and records at least the first image contained in the captured second image while being correlated with information indicative of an imaging time when the second image is captured, and a fourth step where a display delay time of the first camera from the imaging of the first image to the display of the first image is deduced from the time indicated by the display pattern contained in the first image and the information indicative of the imaging time.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: September 19, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Ryuichi Shiohara, Tatsuya Ichikawa
  • Publication number: 20170264791
    Abstract: A photographing apparatus includes a first timing signal generator that generates a first timing signal, a second timing signal generator that generates a second timing signal, a phase difference control unit that controls so that a phase difference between the first timing signal and the second timing signal is a predetermined phase difference, a sensor that is driven based on the first timing signal, an image processing unit that generates an image to be displayed by a line unit based on an output of the sensor, a display unit that is driven based on the second timing signal and displays an image by a line unit after an image processing by the image processing unit, and an error information acquisition unit that acquires information indicating a presence or absence of an error in which a line image to be displayed is not generated in the image processing unit.
    Type: Application
    Filed: February 14, 2017
    Publication date: September 14, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170264860
    Abstract: An imaging display apparatus includes an imaging unit that images a subject at a first frame rate and outputs an imaging signal, an image processing portion that generates an image signal based on the imaging signal, a VRAM that stores the image signal, and a display unit that performs displaying based on the image signal at a second frame rate which is equal to or greater than N (N is a natural number equal to or greater than 2) times the first frame rate. The VRAM stores the image signals for one frame to be displayed by the display unit. The display unit performs displaying N times based on the image signals for one frame.
    Type: Application
    Filed: August 6, 2015
    Publication date: September 14, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170264849
    Abstract: A photographing apparatus includes an oscillator, a first timing signal generator that generates a first timing signal based on an output signal of the oscillator, a second timing signal generator that generates a second timing signal based on the output signal of the oscillator, a phase difference control unit that is controlled so that a phase difference between the first timing signal and the second timing signal is a predetermined phase difference based on the output signal of the oscillator, a sensor that is driven based on the first timing signal, an image processing unit that generates an image to be displayed based on an output of the sensor, and a display unit that is driven based on the second timing signal and displays an image captured on the sensor.
    Type: Application
    Filed: February 14, 2017
    Publication date: September 14, 2017
    Inventor: Ryuichi SHIOHARA
  • Patent number: 9756252
    Abstract: An image device is adapted to control an image-capturing section and a display section. The image-capturing section captures an image of a subject and generate image-capture data in synchronization with a first vertical synchronization signal. The display section displays an image on the basis of image data in synchronization with a second vertical synchronization signal. The image device includes an image-data-generation section configured to generate the image data on the basis of the image-capture data, and a timing generator configured to output the first vertical synchronization signal and the second vertical synchronization signal. The second vertical synchronization signal is outputted after a predetermined period from a timing at which the first vertical synchronization signal is outputted. The predetermined period is shorter than a period of one cycle of the first vertical synchronization signal and variable.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 5, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Publication number: 20170237882
    Abstract: An imaging device that includes an imaging unit included K imaging elements, a display unit included K display areas, an image signal generation unit that generates partial image signals based on imaging signals output from the imaging unit, and outputs image signals to the display unit, and a timing control unit that outputs a timing when the image processing generation unit outputs the image signal based on display output line information and image processing line information, and the image processing generation unit outputs an image signal indicating an image to be displayed in a display target line in a case where the display output line information and the image processing line information indicate the display target line.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 17, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170225621
    Abstract: A vehicle imaging device for displaying an image of the outside of a vehicle on a display unit used in the vehicle includes an imaging unit that is attached to the vehicle, images of the outside of the vehicle, and outputs an imaging signal; an image signal generation unit that performs a generation process of generating an image signal indicating an image to be displayed in each line of the display unit based on the imaging signal, and outputs the image signal to the display unit; and a timing control unit that controls a timing when the image signal generation unit outputs the image signal to the display unit.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 10, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170223298
    Abstract: An imaging apparatus includes an imaging unit that captures an image of a subject and outputs imaging signals; an image signal generation unit that generates image signals indicative of images to be displayed in respective lines of a display unit based on the imaging signals, and outputs the generated image signals to the display unit; and a timing control unit that controls timings, in which the image signal generation unit outputs the image signals, based on an output completion signals indicative of lines corresponding to the image signals, which are completely output from the image signal generation unit to the display unit, and write completion signals indicative of lines corresponding to the image signals which are generated by the image signal generation unit.
    Type: Application
    Filed: July 30, 2015
    Publication date: August 3, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170187958
    Abstract: An image capturing device includes an image capturing unit capturing an image at a timing based on a first frame rate and outputs data corresponding to the image after a first period, an image data generation unit generating image data based on the output data and outputting the image data after a second period, a display unit displaying a display image based on the image data after the second period and at a timing based on a second frame rate, and a mode selecting unit selecting a first or second mode. The first mode prioritizes reduction in a display delay time. The second mode prioritizes image quality of the display image over reduction in the display delay time. A total period of the first and second periods is less than or equal to a first vertical synchronization period based on the first frame rate when the first mode is selected.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Inventor: Ryuichi SHIOHARA
  • Publication number: 20170163898
    Abstract: An imaging-displaying apparatus includes an imaging unit outputting an imaging signal; an image processing unit generating an image signal based on the imaging signal, and writing the signal in a VRAM; an image signal output unit outputting the image signal from the VRAM, and outputting the signal to the display unit; and a timing control unit generating an imaging vertical synchronizing signal for driving the imaging unit, generating a display vertical synchronizing signal obtained by delaying the imaging vertical synchronizing signal at least by a predetermined time which is necessary for a generation of an image signal, and supplying the signal to the display unit, and controlling an image signal output unit so that the image signal is read from the VRAM by being delayed by a phase difference between the imaging vertical synchronizing signal and the display vertical synchronizing signal, after outputting the imaging signal from the imaging unit.
    Type: Application
    Filed: July 16, 2015
    Publication date: June 8, 2017
    Applicant: SEIKO ESPON CORPORATION
    Inventor: Ryuichi SHIOHARA