发明名称 FACSIMILE SIGNAL MODIFICATION REDUCING THE INFORMATION CHANNEL BAND-WIDTH
摘要 Shortening the marking pulses (non-background) by an amount equal to the shortest pulse which the system is intended to pass improves the performance of the three level, band-width reducing system described in the application entitled "Facsimile Signal Modification Reducing the Information Channel Band-Width" filed on Dec. 21, 1967 and bearing Ser. No. 701,511 now U.S. Pat. No. 3,588,330.
申请公布号 US3651251(A) 申请公布日期 1972.03.21
申请号 USD3651251 申请日期 1970.05.01
申请人 INTERNATIONAL SCANATRON SYSTEMS CORP. 发明人 JOHN H. CLARK
分类号 H04N1/413;(IPC1-7):H04N7/10 主分类号 H04N1/413
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