Hand-held scanning head having auditory beeper with a changeable beeping rate
摘要
An auditory beeper mounted in a hand-held scanning head of an electro-optical system for reading light-reflective indicia signals a user that the indicium has been found and is ready to be read by generating a series of sounds or beeps whose rate of beeping changes upon finding the indicium.
申请公布号
US6000617(A)
申请公布日期
1999.12.14
申请号
US19970926163
申请日期
1997.09.09
申请人
SYMBOL TECHNOLOGIES, INC.
发明人
SWARTZ, JEROME;SHEPARD, HOWARD M.;BARKAN, ERIC F.;ADELSON, ALEXANDER M.;KRICHEVER, MARK J.;METLITSKY, BORIS;BARKAN, EDWARD