DETECTION METHOD FOR FORGETTING OF LENS CAP REMOVAL AND VIDEO RECORDING APPARATUS
PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately judged taking leaking light of the lens cap into consideration without adding a special switch for detecting the opening/closing of the lens ca...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
05.02.2009
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Subjects | |
Online Access | Get full text |
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Abstract | PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately judged taking leaking light of the lens cap into consideration without adding a special switch for detecting the opening/closing of the lens cap, thereby an erroneous operation due to power disconnection is notified to user. SOLUTION: The opening/closing of the lens cap can be highly accurately detected by taking into consideration a detection result of an AGC signal and a detection result of luminance average, and useless battery consumption is suppressed by displaying warning to a user, and at the same time automatically disconnecting the power for a user who is not aware of the warning. COPYRIGHT: (C)2009,JPO&INPIT |
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AbstractList | PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately judged taking leaking light of the lens cap into consideration without adding a special switch for detecting the opening/closing of the lens cap, thereby an erroneous operation due to power disconnection is notified to user. SOLUTION: The opening/closing of the lens cap can be highly accurately detected by taking into consideration a detection result of an AGC signal and a detection result of luminance average, and useless battery consumption is suppressed by displaying warning to a user, and at the same time automatically disconnecting the power for a user who is not aware of the warning. COPYRIGHT: (C)2009,JPO&INPIT |
Author | ISHIKAWA YOSHIKI KOMURA KOJI |
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Snippet | PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately... |
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SubjectTerms | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION |
Title | DETECTION METHOD FOR FORGETTING OF LENS CAP REMOVAL AND VIDEO RECORDING APPARATUS |
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