Nikon Corporation

Nippon Kogaku K.k.

Tetsuya Yamamoto

Masakazu Sekiguchi

Tomoyuki Matsuyama

Masahiro Nei

Masamitsu Yanagihara

Isao Totsuka

Satoshi Hagiwara

Norihiko Takatsu

Keita Kimura

Masahiro Suzuki

Hirotake Nozaki

Nobuhiro Fujinawa

Satoshi Ejima

Jun Akabane

Tadashi Ohta

Isao Takahashi

Yoshio Nara

To determine the state of a subject person with a simple structure, an image determining device includes: an imaging unit that captures an image from a first direction, the image including the subject person; a first detector that detects size information from the image, the size information being about the subject person in the first direction; a second detector that detects position-related information, the position-related information being different from the information detected by the first detector; and a determining unit that determines the state of the subject person, based on a result of the detection performed by the first detector and a result of the detection performed by the second detector.

Image determining device to determine the state of a subject

To appropriately guide a subject person while protecting a privacy of the subject person despite use of an captured image of the subject person, a guidance system includes: an image capturing unit capable of capturing an image containing a subject person from a first direction; a detection unit that detects a size of an image of the subject person from the image captured by the image capturing unit; and a guidance unit that provides guidance for the subject person based on a detection result of the detection unit.

Guidance system, detection device, and position assessment device

A data communication apparatus comprises a storage unit that stores network connection information required for establishing a connection via a network with an external device, a light emission element that emits light, a light emission control unit that converts the network connection information into an optical signal and emits the optical signal from the light emission element by controlling an operation of the light emission element based upon the network connection information stored in the storage unit, and a reception unit that receives data transmitted from the external device via the network.

Data communication apparatus, electronic camera, and data communication system

A projector includes: an image creation unit that projects image information upon a screen, comprising a plurality of picture elements that create an image pattern corresponding to the image information; and an illumination unit in which light emitting members are disposed upon a vertical plane with respect to an optical axis which passes through a center of the image creation unit, at equal distances from the optical axis and moreover in different locations.

Projector

In an electronic still camera having a solid-state image pickup device and a mechanical shutter, the interval from the start of charge accumulation to the start of charge readout for odd and even fields may be different, resulting in flicker or line crawl effects. To overcome this problem, the intervals are made the same by detecting the level of a reference signal synchronized with the operation of the shutter, determining whether the levels are the same when the shutter is opened and when the shutter is closed, and, if they are not the same, preventing the application of transfer gate signals to the image pickup device for a predetermined period.

Electronic still camera

An electronic still camera comprises a photoelectric converting device for converting light from an object into an electrical signal; an amplifying-recording device for amplifying the electrical signal and for recording the amplified signal on a recording medium; a selecting device for selecting one of plural amplification gains so that the amplifying-recording device amplifies the electrical signal on the basis of the selected amplification gain; an exposure time in accordance with the selected amplification gain and the luminance of an object to be photographed; and a determining device for determining a longest permissible exposure time, irrespective of the luminance of the object, in accordance with the selected amplification gain. If the calculated exposure time is longer than the longest permissible exposure time, an alarm is given and/or the calculated exposure time is reduced.

An electric still camera is provided with a device for varying the gain of an image signal amplifying circuit in response to the excess or deficiency of the amount of light from a flash unit, before the image signal is recorded.

Electronic still camera system with automatic gain control of image

An electronic still camera includes a photo-taking lens, color temperature detector for detecting the color temperature of the outside of the camera including an object, an image pickup for accumulating therein charges according to the incident light from the object passed through the photo-taking lens, a regulator for regulating the picture signal from the image pickup on the basis of the output of the color temperature detector, a recorder means for recording the picture signal passed through the regulator on a recording medium, a device for producing a luminance signal from the output of the color temperature detector, and a computer for calculating the charge accumulating time of the image pickup for the light from the photo-taking lens on the basis of the luminance signal.

Exposure control device in an electronic still camera

A visual display device in a video instrument capable of alternatively setting the frame mode and the field mode comprises display means having a display area, means for driving the display means by a first display mode in which a plurality of patterns are displayed while being distributed at a predetermined density in the display area and a second display mode in which a plurality of patterns are displayed while being distributed at a density lower than the predetermined density in the display area, and means for selecting the first display mode when the frame mode is set, and selecting the second display mode when the field mode is set.

Display device in a video instrument

A solid state image pick-up device in which a light-receiving portion of MOS diode structure for accumulating therein charges corresponding to the intensity of light is formed on a substrate includes discharging means for discharging the accumulated charges into the substrate, and control means for controlling the discharging means in accordance with the exposure time of the solid state image pick-up device.

Growing community of inventors

Hasuda, Japan

Tetsuya Yamamoto