01025nam a2200217 c 4500001001500000005001500015008004100030040001900071041001300090049003200103052002200135056001400157082001900171100003600190245024200226260003600468300002900504502008900533653015600622963002900778KDM199410232  19941203114625941107s1993    ulka       BD 000   kor    a011001c0110010 akorbeng0 lEM1083228lEM1083229c2fDP01a569.91b홍549ㅇ  a569.91230 a621.3804132191 a홍진우,d1959-0KAC20130634010a음량정격에 기초한 디지탈 전화기의 통화품질 설계 및 측정에 관한 연구=x(A)study on the designs and measurements of the transmission qualities for digital telephone systems based on loudness ratings/d홍진우  a서울:b광운대학교,c1993  ax,139장:b삽도;c26cm1 a학위논문(박사) --b광운대학교 대학원:c전자계산기공학과,d1993  a음량정격a디지탈a전화기a통화품질aDESIGNSaMEASUREMENTSaTRANSMISSIONaQUALITIESaDIGITALaTELEPHONEaSYSTEMSaBASEDaLOUDNESSaRATINGS  a전자계산기공학과