| 摘要 |
PURPOSE:To transfer quickly changed time data surely, by holding data from an electronic watch for a constant time through a swich, which is interlocked with a shutter, and displaying this data optically. CONSTITUTION:When a swtich 53 is interlocked with a shutter to be closed, AND gates 55-58 which generate latch control signals are inhibited for a constant time through a monostable multivibrator 52, an inverter 54, etc., and time information applied from a time counter of an electronic watch is held in latch circuits 45-48 for a constant time. Simultaneously, an LED driving circuit 50 is activated through a monostable multivibrator 51 to display information in circuits 45-48, and an LED display material 59 is lit for a constant time, and thus a portable camera with the electronic watch is obtained where the time of display digits, whose contents are charged quickly, such as second or the like is transferred surely. |
