Abstract: A recording and reproducing apparatus wherein an externally input voice stating an alarm time such as month, day and time, together with an associated message, is converted into voice data for storage in a voice data memory. Only that portion of the voice indicating the alarm time is recognized by a voice alarm time recognition circuit and is also stored in an alarm time data memory as an alarm time. When the alarm time is reached, the corresponding voice data stored in the voice data memory is read out and audibly reproduced so as to sound the alarm time and the associated message.

Abstract: An electronic key apparatus wherein an encrypted code for unlocking an electronic lock is stored in an encrypted code storage register. A password is stored in a password storage register. The same password as that stored in the password storage register, is input via a switch. The password input by the switch is compared with the password stored in the password storage register, by a coincidence detection circuit. When a coincidence is detected, the encrypted code stored in the encrypted code storage register is transmitted to the electronic lock, by a transmitter.

Abstract: In a recording/reproducing apparatus, voice message information is encoded into voice message data by an encoder, and keyed in data information is converted into synthesizing speech data by a speech synthesizing circuit. Both the voice message data and the synthesized speech data are separately stored in a semiconductor memory. The speech data is independently read out from the semiconductor memory.

Abstract: An electronic wristwatch with a printer has a printing head which is arranged inside a wristwatch case with a recording paper loading portion and which performs printing on the recording paper. The printing head is moved by an operation member, and a displacement thereof is detected by a detecting portion. A print control circuit controls printing of the printing head in accordance with a speed corresponding to the displacement detected by the detecting portion.

Abstract: A time display device includes a memory, in which a plurality of successive time data items are memorized. With the operation of an external manual switch, two or more time data items among those memorized in the memory are read out and supplied to an optical display unit. Two or more time data items are simultaneously displayed in the optical display unit.