Patents by Inventor Nobuo Fukushima
Nobuo Fukushima 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: 5903303Abstract: To realize a multi-eye image pickup apparatus which can perform proper exposure for each of a plurality of image pickup devices, the multi-eye image pickup apparatus having a plurality of image pickup devices is arranged to have an exposure amount controlling device provided for each of the image pickup devices, for controlling an exposure amount, and a control unit for determining an exposure amount of each exposure amount controlling device, based on photometric values of pickup images obtained by the plurality of image pickup devices or based on photometric values of split images obtained by splitting each of the pickup images into a plurality of zones.Type: GrantFiled: March 12, 1997Date of Patent: May 11, 1999Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Shigeki Okauchi, Masayoshi Sekine, Tatsushi Katayama
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Patent number: 5805300Abstract: An image processing apparatus having a solid state image sensor for inputting an optical image thereto and converting the image into an electrical signal; an image memory having a general-purpose DRAM formed by at least one chip and required to control the refresh operation from the outside of the memory chip; a timing signal generator for generating timing of read from the solid state image sensor; a transfer/storage control device for horizontally reading data from the solid state image sensor synchronously with the horizontal read timing signal generated from the timing signal generator, transferring the read data and storing the data in the DRAM; a first refresh signal generator for refreshing the DRAM at predetermined time intervals when no data is read from the solid state image sensor; and a second refresh signal generator for refreshing the DRAM a predetermined number of times during the dormant period of the horizontal read timing signal.Type: GrantFiled: June 5, 1995Date of Patent: September 8, 1998Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5726820Abstract: Apparatus for reproducing or erasing video signals recorded on a recording medium includes a first circuit for reproducing an identification signal recorded on the recording medium which indicates a sequence of recording of the video signals on the recording medium. A second circuit reproduces or erases a plurality of image signals which correspond to a plurality of pictures in a sequence corresponding to the identification signal reproduced by the first circuit.Type: GrantFiled: November 12, 1996Date of Patent: March 10, 1998Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5699108Abstract: In a stereoscopic image pick-up mode and an aspect ratio change/panoramic image pick-up mode by a multi-eye image pick-up apparatus, information is displayed such that a photographer can intuitively grasp various image pick-up conditions.A multi-eye image pick-up apparatus having a plurality of image pick-up optical systems includes an operation processing portion for receiving signals of position information obtained by an encoder and a rotational angle encoder provided to each image pick-up optical system, and a slide mechanism to calculate the image pick-up conditions and the display position of a figure representing the image pick-up state to be displayed in a finder, and a finder screen image producing portion for producing, from a calculation result, a video signal to be displayed in the finder.Type: GrantFiled: March 29, 1996Date of Patent: December 16, 1997Assignee: Canon Kabushiki KaishaInventors: Tatsushi Katayama, Nobuo Fukushima, Masayoshi Sekine
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Patent number: 5694166Abstract: A video camera comprises a solid state image pickup device, a pulse generator to supply a transfer pulse to read out signals of the solid state image pickup device, A/D converters to convert the signals read out from the solid state image pickup device into the digital signals, and a dynamic RAM which operates in the high speed page mode to store the digital signals. The video camera has a reading circuit in which the time which is required to read out at least one line of the solid state image pickup device is shorter than the maximum permission time to write into the same RAS address in the high speed page mode and the period of the transfer pulse is integer times as long as the period of the original oscillation clock of the pulse generator.Type: GrantFiled: June 15, 1994Date of Patent: December 2, 1997Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5642458Abstract: An information signal processing apparatus for processing an information signal is arranged to temporarily store information data inputted thereinto and move, after a predetermined amount of information data is stored, a moving element of a recording medium into which the information data is to be recorded, so that it is possible to stably execute continuous recording of the information signal by means of a simple arrangement with a small power consumption.Type: GrantFiled: July 13, 1994Date of Patent: June 24, 1997Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Yoichi Yamagishi
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Patent number: 5576840Abstract: A recording apparatus is arranged to detect the kind of recording medium used for recording data, and to selectively make, according to the result of detection, either a first display indicative of the absolute value of a remaining recordable capacity of the recording medium or a second display indicative of the ratio of the remaining recordable capacity to a full recordable capacity of the recording medium.Type: GrantFiled: March 23, 1994Date of Patent: November 19, 1996Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5570245Abstract: A data erasing device erasing designated data includes designating circuitry for designating one of two groups in a storage medium. The two groups comprise a first group including an upper block preceding a designated block, and a second group including a lower block following the designated block. Erasing circuitry is provided for erasing data recorded in blocks which are included in the designated group. Preferably, a designated block is one track in a recording disk, and the tracks above and/or below the designated track are erased.Type: GrantFiled: June 6, 1995Date of Patent: October 29, 1996Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5523857Abstract: An image signal recording apparatus includes a first storage device arranged to receive image data and to temporarily store the image data inputted, and a second storage device which has a moving part arranged to record on a recording medium the image data temporarily stored at the first storage device. The apparatus is arranged such that, in moving the moving part of the second storage device after receipt of an instruction for starting to input the image data, the timing of starting the movement of the moving part of the second storage device is controlled according to the state of a power supply or a type of power supply which supplies electric power to portions of the apparatus. The apparatus thus can be simply arranged to be capable of continuously and stably recording image data by consuming only a small amount of electric energy.Type: GrantFiled: May 1, 1995Date of Patent: June 4, 1996Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5459508Abstract: An image processing apparatus having a solid state image sensor for inputting an optical image thereto and converting the image into an electrical signal; an image memory having a general-purpose DRAM formed by at least one chip and required to control the refresh operation from the outside of the memory chip; a timing signal generator for generating timing of read from the solid state image sensor; a transfer/storage control device for horizontally reading data from the solid state image sensor synchronously with the horizontal read timing signal generated from the timing signal generator, transferring the read data and storing the data in the DRAM; a first refresh signal generator for refreshing the DRAM at predetermined time intervals when no data is read from the solid state image sensor; and a second refresh signal generator for refreshing the DRAM a predetermined number of times during the dormant period of the horizontal read timing signal.Type: GrantFiled: December 22, 1993Date of Patent: October 17, 1995Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5426536Abstract: A synchronizing signal generating device of the invention is a device for generating a plurality of kinds of synchronizing signals conformed to two different systems from each other, wherein two kinds of reference signals of different frequencies from each other are caused to generate, and by dividing each of them in frequency at the same frequency division ratio, of the plurality of kinds of synchronizing signals, at least one kind of synchronizing signal conformed to each system can be obtained by a very simple arrangement.Type: GrantFiled: September 13, 1994Date of Patent: June 20, 1995Assignee: Canon Kabushiki KaishaInventors: Yuji Sakaegi, Nobuo Fukushima
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Patent number: 5359422Abstract: A display device having a plurality of display modes may be used with a recording apparatus which records received image information on a recording medium. An information display is provided for displaying data. Exposure correction circuitry corrects an exposure characteristic of the received image and provides exposure correction information in response to a setting operation. Circuitry is provided for generating an identification code to be recorded on the recording medium together with the image information. Control circuitry is provided having a first display mode for causing the display to display the correction information from the exposure correction circuitry when the exposure correction information has been set, and a second display mode for causing the display to display the identification code generated by the generating circuitry instead of the correction information when the exposure correction information has not been set.Type: GrantFiled: November 8, 1993Date of Patent: October 25, 1994Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5345532Abstract: A rotation drive device for driving a rotator is disclosed, comprising an electric motor for driving the rotator, a phase detecting circuit for detecting the phase of rotation of the rotator, a reference signal source for forming a reference signal of a constant period, a phase control circuit for controlling the motor in such a manner that the phase difference between the output of the reference signal source and the output of the phase detecting circuit becomes a constant value, a detecting circuit for detecting a fact that the reading-out of the phase difference is not completed in the time interval between the successive two outputs of the phase detecting circuit, a control circuit for varying the number of cycles of phase difference computing operation of the phase control circuit depending on the time interval between the successive two outputs of the phase detecting circuit, another detecting circuit for detecting a fact that the phase detecting circuit has produced no output in one period of the referType: GrantFiled: September 14, 1993Date of Patent: September 6, 1994Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5317404Abstract: A film adaptor, to be used in combination with a still video camera, for recording an image from a conventional photographic film using the still video camera. The film adaptor has a recording button and an erasing button. By depressing the recording button, the image on the film is recorded by the still video camera and is reproduced immediately thereafter, for confirmation of the recorded image. If the image is considered unnecessary, the erasing button is depressed while the recording button remains depressed, whereupon the recorded image is erased. The film image recording operation is therefore conducted in a simple manner.Type: GrantFiled: September 30, 1991Date of Patent: May 31, 1994Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Osamu Takeda, Ryoji Kubo
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Patent number: 5305106Abstract: An image signal reproducing apparatus includes a synchronizing signal generator which is configured so as to count the number of clocks of a generated clock signal, generate various kinds of timing signals in accordance with the result of count, compare the phase of the generated timing signal with the phase of an input synchronizing signal, and control a period to count the number of clocks of the clock signal in accordance with the result of comparison. It becomes thereby possible to form various kinds of correct timing signals even if the input synchronizing signal reproduced from a recording medium is deteriorated.Type: GrantFiled: September 20, 1990Date of Patent: April 19, 1994Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Shigeo Yamagata, Makoto Ise
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Patent number: 5235429Abstract: The display apparatus has a band-pass filter for limiting an input video signal to a bandwidth equal to or narrower than half of a frequency band which is calculated from the number of display elements along the horizontal direction of a screen. Further a computing circuit computes vertical interpolation video data in order to correct for the difference between the number of display elements along the vertical direction and the number of scanning lines along the vertical direction of the input video signal. Even if various kinds of video signals are input, the display apparatus displays images corresponding to the video signals, by controlling the brightness of display elements arranged in a matrix form.Type: GrantFiled: February 24, 1992Date of Patent: August 10, 1993Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5227927Abstract: A recording and/or reproducing apparatus arranged to permit an interchange of record bearing media and selection between recording and reproducing modes of operation on the medium comprises look-up device for looking up the presence or absence of an existing record in each recording or reproducing position on the record bearing medium loaded on the apparatus, and control unit arranged to control the look-up device to cause it to perform a look-up action in response to opening of a lid for replacement of the record bearing medium and to cut off the power supply upon completion of the look-up action. The control unit thus lowers electric energy consumption and saves electric energy from being wasted by the look-up action.Type: GrantFiled: October 26, 1992Date of Patent: July 13, 1993Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Shinji Sakai, Osamu Takeda, Masahiro Takei, Yasutomo Suzuki, Tadashi Okino, Shigeru Jinnai
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Patent number: 5218452Abstract: An electronic still-picture camera device having a first setting circuit for selectively setting one of a frame-record mode and a field-record mode, a second setting circuit for selectively setting one of a first continuous photographing mode and a second, higher speed, continuous photographing mode, and a control circuit for selecting the field-record mode regardless of the first setting circuit when the second continuous photographing mode has been selected by said second setting circuit. Preferably, there is also an imaging system operative in one of a mechanical shutter mode and an electronic shutter mode. The control circuit causes the imaging system to be operative in the electronic shutter mode when the second continuous photographing mode has been selected.Type: GrantFiled: June 29, 1989Date of Patent: June 8, 1993Assignee: Canon Kabushiki KaishaInventors: Makoto Kondo, Nobuo Fukushima
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Patent number: 5150219Abstract: An electronic camera for recording an image of an object on a recording medium using a head and an imaging device. The camera has an electronic shutter pulse generation circuit for electronically reading out a signal stored in the imaging device within a short time. The camera also has a head moving mechanism for moving the head relative to the medium, where the time required for moving the head to the next tract after recording is arranged to be within a period equal to an n multiple (n is an integer) of a vertical synchronizing period of a video synchronizing signal.Type: GrantFiled: October 23, 1989Date of Patent: September 22, 1992Assignee: Canon Kabushiki KaishaInventor: Nobuo Fukushima
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Patent number: 5144503Abstract: A recording apparatus arranged to shift a recording head in a given direction relative to a record bearing medium and to perform recording in each shifted position. In positioning the recording head, the presence or absence of a record in each recording track on the medium is detected by checking them one after another in a direction reverse to the given direction from a given position. Then, the head is positioned at the first of consecutive blank recording tracks by positioning the head at a point determined by shifting the head to a given extent in the given direction from a position where the presence of a record is first detected among others by the checking operation.Type: GrantFiled: October 2, 1991Date of Patent: September 1, 1992Assignee: Canon Kabushiki KaishaInventors: Nobuo Fukushima, Masaya Maeda, Nobuo Tezuka