Communication device having an image transmission function
AssigneeMinolta Co., Ltd.
InventorsHiromu Mukai, Hitoshi Hagimori, Minoru Kuwana, Tsutomu Honda, Kazuhiko Ishimaru, Hideki Nagata
Life of this patent
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Abstract
A communication device having an image transmission function such as a video phone or a camera-equipped cellular phone. The image transmission function is capable of capturing an object image using an optimal size.
Claims15
A communication device having an image transmission function, the device comprising:
- a lens unit with a variable focal length used for capturing images;
- a magnification setting unit to set the magnification used during image capture by the lens unit to a predetermined value when power is turned ON;
- and
- a lens driving unit to determine an initial focal length based on the image capture magnification set by the magnification setting unit, and to drive the lens unit based on the initial focal length.
A communication device having an image transmission function, the device comprising:
- a lens unit having a variable focal length used for capturing the image of an object;
- a distance measuring unit to measure the distance from the object and to generate distance information;
- and
- a lens driving unit to determine the optimal focal length for capturing the image of the object using a predetermined image capture magnification based on the distance information and to drive the lens unit to match the optimal focal length.
A communication device having an image transmission function, the device comprising:
- a lens unit having a variable focal length used for capturing the image of an object;
- an image processing unit to perform image processing of the image obtained through image capture of the object and to determine the magnification adjustment amount required for image capture of the object using a predetermined image capture magnification;
- and
- a lens driving unit to drive the lens unit based on the magnification adjustment amount.
An image receiving unit for use with a communication device, comprising:
- a lens unit with a variable focal length used for capturing images;
- and
- an imaging element receiving the images from the lens unit and generating imaging data for transmission to another communication device.
A communication device for transmitting image data, comprising:
- a receiver receiving images from another communication device;
- operation switches enabling a user to operate the communication device;
- display unit to display images received by the communication device;
- and
- a camera to capture images from the communication device.
Dependencies are inferred from the claim text.