作者: Jerome H. Lemelson
DOI:
关键词: ALARM 、 Signal 、 Transmission (telecommunications) 、 Set (abstract data type) 、 Time zone 、 Real-time computing 、 Engineering 、 Supersonic speed
摘要: A timepiece is set by transmission of a time related signal which received the and converted into digital form. The circuit developing signals representing displayed stepped more rapidly than normal simultaneously compared with until they compare at rapid stepping abruptly terminated resumed. carrier may be any supersonic frequency. Setting enabled only after operating check switch. above technique employed to produce an alarm requested serve as memory or wake-up aid, for example.