发明名称 |
Radioactive decay based stable time or frequency reference signal source |
摘要 |
A signal source for use as a frequency source or time keeping signal source includes a radioactive emission source generating a substantially periodic signal corresponding to a radioactive material's disintegration rate. A radioactive emission detector generates a radioactive emission detection signal and, to stabilize the detected periodic signal, a dead time controlling attenuator blanks or shuts off the radioactive emission detection signal for a selected dead time interval in response to each detected radioactive emission (i.e., a detected signal pulse or signal component) generated by the source. The dead time controlling attenuator output provides a long-term and short-term a stable periodic signal.
|
申请公布号 |
US7476865(B2) |
申请公布日期 |
2009.01.13 |
申请号 |
US20060431506 |
申请日期 |
2006.05.11 |
申请人 |
CORNELL RESEARCH FOUNDATION, INC. |
发明人 |
LAL AMIT;LI HUI;GUO HANG;RADHAKRISHNAN SHANKAR |
分类号 |
G04F5/14;G06F1/04 |
主分类号 |
G04F5/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|