Electronic watch

Abstract

An electronic watch having a time counter circuit for developing a count representative of present time, a second time counter circuit for developing a count representative of time, and a chronograph counter circuit for developing a count representative of elapsed time. A predetermined time is stored in a memory circuit and the contents of the second time counter and the memory circuit are compared by a coincidence detecting circuit. When coincidence occurs a sound generating circuit is enabled for developing sound pulses to represent coincidence. A display visually displays time, and a display switching circuit switches between the present time counter, the memory circuit and the chronograph counter for applying the contents of a selected one thereof in order to visually display present time, the predetermined time and a time interval determined by the chronograph counter. A control circuit is effective for controlling the display switching circuit and operating the watch in different modes. The watch further includes an encoder for developing signals encoded in Morse code, and a sound signal generator for developing audio signals encoded in Morse code. A second switching circuit receives the output of the display switching circuit and, in response to control signals, applies the display switching circuit output to the encoder.