A cigarette identifier system comprising an infrared emitter and an infrared detector located across an opening of a cigarette receiver, wherein the sensor registers changes in the transmission of the infrared beam across the opening so as to detect the differences in transmissivity of dense and less dense and portions of an inserted cigarette.
申请公布号
US5967148(A)
申请公布日期
1999.10.19
申请号
US19970951259
申请日期
1997.10.16
申请人
PHILIP MORRIS INCORPORATED
发明人
HARRIS, CHARLES W.;NUNNALLY, H. NEAL;RIPLEY, ROBERT L.;SANO, MASATO;SMITH, BARRY S.
