Camera capable of winding and rewinding film by revolution of motor
First Claim
1. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
- noise level measuring means for measuring a noise level of the surroundings of the camera;
noise level discriminating means for discriminating whether the noise level measured by said noise level measuring means is higher or lower than a predetermined value; and
control means for controlling a revolution speed of a motor for feeding a film based on the result of the level discriminated by said noise level discriminating means.
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Accused Products
Abstract
The present invention provides a camera having a film feed mechanism comprising a microphone for sensing the surrounding noise around the camera, a noise level measuring portion for measuring the sensed noise (sound pressure), a noise level discriminator for comparing the measured noise level with a predetermined level to discriminate whether the measured noise level is higher or lower than the predetermined level, a feed mode change-over portion for changing the film feed speed to a silent mode or a normal film feed by selecting the normal film feed or the film feed whose generated noise level is low in response to the discriminated noise level, and a film feed mechanism for feeding a film in both winding and rewinding.
2 Citations
16 Claims
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1. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
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noise level measuring means for measuring a noise level of the surroundings of the camera; noise level discriminating means for discriminating whether the noise level measured by said noise level measuring means is higher or lower than a predetermined value; and control means for controlling a revolution speed of a motor for feeding a film based on the result of the level discriminated by said noise level discriminating means. - View Dependent Claims (2)
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3. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
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noise level measuring means for measuring a noise level of the surroundings of the camera; noise level discriminating means for discriminating whether the noise level measured by said noise level measuring means is higher or lower than a predetermined value; film feeding means for rewinding a film after exposure and/or rewinding a film after taking a predetermined number of photos; and changing means for changing a film feeding mode to a normal mode for feeding the film at a predetermined normal speed or a silent mode for feeding the film at a higher speed than the normal speed based on the result of the level discriminated by said noise level discriminating means. - View Dependent Claims (4, 5, 6)
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7. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
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sound pressure level measuring means, provided in a camera body, for measuring a sound pressure level of the surroundings of the camera; and motor controlling means for controlling a revolution speed of said motor in response to an output of said sound pressure level measuring means. - View Dependent Claims (8, 9, 10)
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11. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
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sound pressure level measuring means, provided in a camera body, for measuring a sound pressure level of the surroundings of the camera; and mode changing means for comparing an output of said sound pressure level measuring means with a predetermined reference level so as to set a film feeding mode in either a normal mode or a silent mode. - View Dependent Claims (12, 13)
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14. A camera being capable of winding and rewinding a film by a revolution of a motor, comprising:
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sound pressure level measuring means, provided in a camera body, for measuring a sound pressure level of the surroundings of the camera; storing means for storing a predetermined sound pressure level; mode changing means for comparing a output of said sound pressure level measuring means with a predetermined reference level so as to set a film feeding mode in either a normal mode or a silent mode; and driving means for driving said film feeding motor in response to an output of said mode changing means. - View Dependent Claims (15, 16)
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Specification