PURPOSE: To let various warning instructions to be accurately recognized by using an audio device which produces voice by language.
CONSTITUTION: An exposure warning signal generating circuit II such as of high luminance, optimum and low luminances, etc., a logic conversion circuit III for selection of magnetic heads according to respective warning signals, an endless tape driving circuit IV and a recording and reproducing circuit V are incorporated to a battery check circuit I. Then, when a battery check button is pushed, a switch 11 closes and if the electromotive force of a battery 10 has decreased, the output of the logic conversion circuit III becomes "1" only at D' and the endless tape start signal is inputted to a differentiating circuit 40, which in turn starts a motor 55 to turn an endless tape 60, then through the ON of an analog switch A SW4, the audio signal of the fourth channel of the reproducing magnetic head 65 is reproduced as the voice language of "BATTERY NONE" from a speaker SP. For warning of the presence or not of a self-OR film, and high and low warning of luminance, the A' thru C', E' of the outputs of the logic conversion circuit IV change.
HARIGAYA ISAO
UCHIYAMA TAKASHI
| JPS4835383B1 | 1973-10-27 |