Memory cassette

Abstract

Abstract PURPOSE: To enable to confirm visually the condition of sure coupling with ECR for the memory cassette, by illuminating the light emitting element. CONSTITUTION: When the casher memory cassette 4 is coupled with the interface 123 with ECR, the light emitting element 410 such as photo diode located at an observable position from external is coupled with the collector of the transistor Tr 123-7 via the LED activating line 409 and terminals. Further, in normal condition, that is, when the address signal having the specific code in the coincidence detection circuit 123-1 is not fed, Tr 123-7 is conductive, the element 410 of the cassette 4 surely coupled with the interface 123 is activated and illuminated, displaying visually the sure coupling. Next, when the address signal having the specific code with the circuit 123-1 is fed, the inverting signal of the output signal of the oscillator 123-6 is caused from the NAND gate 123-5, turning periodically on or off, thereby enabling to flicker the element 410 COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Koichi Hamano
• 👤 Takao Morimoto
• 👤 Junko Watanabe
• 👤 Kaoru Ono
• 👤 Norio Yagi

Bibliographic Details