Disk record reproducer

Abstract

Abstract PURPOSE:To eliminate misoperations and to assure an all-clear function, by clearing the contents of all channels of a memory with a simultaneous operation of both a memory reed key (switch) and a clear key (switch). CONSTITUTION:When a memory reed switch 311 is operated alone, a memory display control signal is supplied to a memory display control circuit 315 within a control circuit 201 to read out the preset contents. With an independent operation of a clear switch 312, a display clear control signal is supplied to a display clear control circuit 320 of the circuit 201 to release a display mode for read-out of memory channels. Thus a normal address display mode is obtained. When both switches 311 and 312 are simultaneously operated, a memory all- clear control signal is supplied to a memory all-clear circuit 325 of the circuit 201. Thus the contents preset to each channel of the memory are all cleared.

Inventors

• 👤 Shunji Ishibashi
• 👤 石橋　俊二
• 👤 Hirohisa Nishiwaki
• 👤 西脇　博久

Bibliographic Details