To discriminate a film cassette with voice recording related to a film cassette by providing a means capable of acting in accordance with the actuation of a voice recorder for recording the voice in the middle of image pickup sequence and changing a mark in order to show that voice is recorded in relation to film in the cassette.
When a cassette is inserted in a cassette receiving chamber 72, it slides along a sensing arm 74 until it reaches a hook-like end 75. Since a tab 20 is folded to turn backward, a tab aperture is vacant and the end 75 enters the aperture and is engaged so as to hold the cassette. The cassette is continuously inserted by pulling the arm 74 downward until a lower end 86 is engaged with a switch arm 80b. Then, switch contact parts 80a and 80b for transmitting a signal showing that the cassette is a voice film cassette are closed. An output line 87 is connected to an indicator lamp in order to show the state of the cassette.
ROWAN STEPHEN JOHN
PATTON DAVID L
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