Title: Methods and apparatus capable of indicating elapsed time intervals
Application Number: 200610115929 Application Date: 2006.08.18
Publication Number: 1932697 Publication Date: 2007.03.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G04F13/00
Applicant(s) Name: IBM Address:
Inventor(s) Name:
Attorney & Agent: yujing lizheng
Abstract:
    A method and apparatus of defining a time interval includes providing a source of ionizing radiation that radiates emissions thereof; placing a radiation sensitive display material responsive to ionizing radiation in a close proximity relationship to the source of ionizing radiation whereby the radiated emissions of the source strike the radiation sensitive display material, thereby commencing a time interval; and, measuring changes in characteristics of the radiation sensitive display material that are indicative of the elapsed time.
Time: 13
<- Previous Patent:Head gear variable teeth series m...   |  Next Patent:Mechano-electronic timer ->