Patents by Inventor Nobuhiko Shinoda

Nobuhiko Shinoda 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: 4261659
    Abstract: In the view-finder of a camera having a TTL type light meter connected to an integrating-type analog-to-digital converter through a repeatedly operated electronic switch, there are positioned fifteen light emitting diodes upon selection of an exposure value by the converter, to illuminate a corresponding indicium on a scale of 15 exposure values, such as shutter times. Since a photo-cell exposed to scene light is also positioned in the view-finder, when the brightness of a scene to be photographed is lowered to such an extent that the influence of light from the energized diode on the photo-cell is not negligible, then the decoder for the diode arrangement is controlled to defer initiation of actuation of the one of the diodes which presents the display of an exposure value derived in the preceding cycle of light metering operation pending transition from the light integrating to the analog-to-digital converting step in the following cycle.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: April 14, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiko Shinoda, Nobuaki Sakurada, Hiroyasu Murakami, Tadashi Ito
  • Patent number: 4244006
    Abstract: A device for controlling a television camera of a type, wherein a control quantity of the television camera is converted to an electrical signal and stored in a memory circuit, and, at the time of reproduction, the television camera is controlled to a desired mode on the basis of the electrical quantity stored in the memory circuit.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: January 6, 1981
    Assignees: Nippon Hoso Kyokai, Canon Kabushiki Kaisha
    Inventors: Sigeyosi Kitahara, Isamu Okada, Shigeru Jumonji, Takayuki Nemoto, Shigeru Yoshimura, Tsunenori Soma, Nobuhiko Shinoda
  • Patent number: 4191458
    Abstract: In the disclosed photographic display circuit, a counter counts pulses from a pulse generator and the exposure information to be entered is stepped while the content of the counter and that of the light measuring circuit are used to obtain an exposure value. When the data is being entered only the entered data is displayed. After entry, the resulting exposure data is displayed.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: March 4, 1980
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaharu Kawamura, Nobuaki Sakurada, Nobuhiko Shinoda, Fumio Ito, Hiroyashu Murakami, Tadashi Ito
  • Patent number: 4175842
    Abstract: The present invention relates to an exposure control system for a camera with both priority modes in which the photographic information of either the shutter time or the aperture value and the photographic information including the measured value of the brightness of the object to be photographed are processed so as to obtain a proper exposure value. The system is characterized in that either an optional shutter time or an optional aperture value is set by a common set means, for example, a dial in such a manner that the output of the set means is put in the operation means so as to control the exposure amount. Further, the condition showing whether the value set by the common set means is the aperture value or the shutter value is clearly indicated.
    Type: Grant
    Filed: January 4, 1978
    Date of Patent: November 27, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Tadashi Ito, Nobuhiko Shinoda, Fumio Ito, Hiroyashu Murakami, Masaharu Kawamura
  • Patent number: 4175848
    Abstract: An apparatus for providing a digital display representative of photographic information which is visible in the viewfinder of a camera. Since the photographic information is comprised of a number of factors, a number of symbols or signs are displayed in association with the digital display so that the photographer can identify multidigit numbers displayed. The structure of the digital display is simplified by using an arrangement of connections between display and display driver which allows for further reduction in size of the camera.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: November 27, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyashu Murakami, Tadashi Ito, Fumio Ito, Nobuaki Sakurada, Masaharu Kawamura, Nobuhiko Shinoda
  • Patent number: 4167332
    Abstract: The present invention relates to an integrated circuit body suited to be applied for a TTL single reflex camera, by arranging at least two of the three circuit parts, namely the indication circuit part presenting an indication function, the light sensing circuit part presenting a light sensing function and the control-operation circuit part.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: September 11, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Nobuhiko Shinoda, Tadashi Ito, Yukio Mashimo, Fumio Ito
  • Patent number: 4167312
    Abstract: A camera exposure control circuit performs exposure control and a series of photographic functions digitally by means of digital operation process circuits and a sequence control circuit. In the sequence control circuit a random logic circuit is used to control the camera in an efficient way and to minimize the number of the components of the camera itself.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: September 11, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiko Shinoda, Nobuaki Sakurada, Masaharu Kawamura, Tadashi Ito, Hiroyashu Murakami, Fumio Ito
  • Patent number: 4163935
    Abstract: An apparatus for checking the voltage of a power source battery in a photographic camera is disclosed. In simple form, this apparatus comprises first and second series circuits connected in parallel with each other to the battery, the first one of which has a luminous diode and a resistor, and the second one of which has two luminous diodes and a resistor, the characteristics of the luminous diodes and resistors being so selected that, when the actual voltage is dropped from a predetermined level, a difference between the brightnesses of the luminous diodes of the first and second circuits results to apprise the camera operator of the drop in battery voltage.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: August 7, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Yukio Mashimo, Tadashi Ito, Fumio Ito, Nobuhiko Shinoda
  • Patent number: 4162839
    Abstract: In the camera disclosed, depending upon whether the shutter preference or aperture preference mode is selected, a computer establishes a computed value on the basis of a preset value and other ambient conditions. A number of separate comparators compare the respective values to a single reference wave form and turn off respective gates when the analog voltages achieve predetermined relationships to the reference wave form. The gates passed pulses from a common source from the beginning of the reference wave form until the respective gates are shut off. The values are thus digitized and displayed within the camera.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: July 31, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukio Mashimo, Nobuaki Sakurada, Tadashi Ito, Fumio Ito, Nobuhiko Shinoda, Hiroyashu Murakami
  • Patent number: 4149795
    Abstract: A digital information transmitting and displaying system for a photographic camera in which a plurality of electric signals bearing respective digits, or symbols or combinations thereof constituting a photographic information, such as an exposure value, are transmitted in sequence through a common channel from a camera control circuit device to a digital read-out device arranged to be visible in the view finder of the camera.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: April 17, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Yukio Mashimo, Nobuhiko Shinoda, Tadashi Ito, Fumio Ito
  • Patent number: 4145129
    Abstract: A photographic information display apparatus for a camera provided with at least three display chips. The second chip has a number of segments less than the first chip while the segments of the third display chip are connected to a driving signal transfer line of an encoder which is not connected to the segments of the second chip. This arrangement dispenses with another driving signal transfer line for the third display chip.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: March 20, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaharu Kawamura, Nobuaki Sakurada, Nobuhiko Shinoda, Hiroyasu Murakami, Tadashi Ito
  • Patent number: 4134660
    Abstract: A self timer of a camera in particular a self timer for digitally controlling self timing has an indicating element responsive to pulses from a standard pulse generator to be energized intermittently and a control means for varying the period of energization and deenergization of the indicating element after a predetermined time interval. Thus, it being made possible for the photographer to know the expiration time of the self timer.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: January 16, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Tadashi Ito, Hiroyasu Murakami, Masayoshi Yamamichi, Masayuki Suzuki, Nobuhiko Shinoda
  • Patent number: 4134654
    Abstract: A printed circuit unit for a camera, comprisingA photo-sensing means to measure brightness of an object,An integrated exposure operation circuit means to conduct exposure operation based on the photo-sensing output from said photo-sensing means and other exposure factors for determining a proper exposure value (an exposure time value or an exposure aperture value),An electro-optical display means to digitally display in an optical manner the exposure value (the exposure time value and/or the exposure aperture value) within a field of view finder of the camera, andA flexible printed circuit sheet having electrically conductive paths to electrically connect said photo-sensing means and said display means to said exposure operation circuit means,And in said printed circuit unit, said photo-sensing means, said display means and said integrated exposure operation circuit means are mounted on said flexible printed circuit sheet, and an opening is formed at a part of said printed circuit sheet to allow the image lig
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: January 16, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyashu Murakami, Tadashi Ito, Fumio Ito, Nobuaki Sakurada, Masaharu Kawamura, Nobuhiko Shinoda
  • Patent number: 4125832
    Abstract: A conversion system for a camera of a type controlled through computation of digital information. The system converts a coded digital value into a digital value of another coding. The code which comprises a gray code representing an integer part of the value and a code pattern representing a decimal part of the value is converted in such a manner that: The integer part is converted into a binary code while the decimal part is converted into a code to which a weight of 1/2, 1/4 or 1/8 is applied. With such a method of conversion employed, values set at 1/3 increment or decrement steps such as ASA film sensitivity values are readily converted into binary codes to facilitate the computing operation of the camera.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: November 14, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiko Shinoda, Nobuaki Sakurada, Tadashi Ito, Masayoshi Yamamichi, Hiroyasu Murakami, Masayuki Suzuki
  • Patent number: 4123782
    Abstract: A device for controlling a television camera of a type, wherein a control quantity of the television camera is converted to an electrical signal and stored in a memory circuit, and, at the time of reproduction, the television camera is controlled to a desired mode on the basis of the electrical quantity stored in the memory circuit.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: October 31, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sigeyosi Kitahara, Isamu Okada, Shigeru Jumonji, Takayuki Nemoto, Shigeru Yoshimura, Tsunenori Soma, Nobuhiko Shinoda
  • Patent number: 4118713
    Abstract: At the side of the camera body, switches for treating the totally opened F value information of the photographic lens as coded digital information of a certain determined number of bits are connected to the digital exposure operation circuit. At the side of each of the photographic lens which is made interchangeable for the camera body, a signal pin is arranged for indicating the totally opened F value proper to the photographic lens as coded digital information of the above mentioned determined number of bits in such a manner that at the time of mounting the photographic lens on the camera body, the switches at the side of the camera body are closed in selected combination in accordance with the totally opened F value of the lens. Accordingly the totally opened F value of the photographic lens is put into the digital exposure operation circuit.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: October 3, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyashu Murakami, Tadashi Ito, Fumio Ito, Nobuaki Sakurada, Masaharu Kawamura, Nobuhiko Shinoda
  • Patent number: 4106033
    Abstract: A camera having a digital exposure control device which converts photographing informations into digital amounts and computes them according to the Appex system, and in which the Appex value of the photographing conditions supplied by the above computing operation is converted into practical indications such as numerical references.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: August 8, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichi Nakamoto, Nobuaki Sakurada, Tadashi Ito, Fumio Ito, Nobuhiko Shinoda
  • Patent number: 4103308
    Abstract: A plural number of switches which are selectively opened and closed comprise a first switch corresponding with the weight "2/3" in APEX value and a second switch corresponding with the weight "1/3" in APEX value while a n bit register comprises a first bit with the weight "1/2" in APEX value, a second bit with the weight "1/4" in APEX value and a third bit with the weight "1/8" in APEX value. The closing signal of the first switch is put in the first bit, the closing signal of the second switch in the second bit and the closing signal of the third switch in the third bit so as to carry out the approximate conversion of the data.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: July 25, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Sakurada, Masaharu Kawamura, Nobuhiko Shinoda, Tadashi Ito, Hiroyashu Murakami, Fumio Ito
  • Patent number: 4103307
    Abstract: An automatic exposure control device to convert the analogue value of an object to be photographed, to digital value for controlling appropriate exposure value using said digital value. The device has a photo-sensing means to sense the light from the object digitally, a photographing information setting means to digitally set various photographing information such as film sensitivity, diaphragm aperture value, shutter speed, etc.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: July 25, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiko Shinoda, Tadashi Ito, Soichi Nakamoto, Fumio Ito
  • Patent number: 4092652
    Abstract: The analog signal corresponding to the brightness of the object to be photographed is converted into a digital signal by means of an A-D converter while a shutter control means adjust the shutter mechanism in accordance with the digital signal stored in the A-D converter whereby at the same time, a digital information indicating circuit indicates digitally the digital signal stored in the A-D converter. Hereby, the digital information indicating circuit is connected with the timing pulse forming circuit in such a manner that the indication circuit repeats the indication by means of the timing pulse forming circuit with a period allowing the photographer to visually recognize the digital information of the indicating circuit.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: May 30, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadashi Ito, Fumio Ito, Yukio Mashimo, Nobuaki Sakurado, Nobuhiko Shinoda