发明名称 Method and apparatus for telephone line multiplex channeling of toll-quality voice and digital information
摘要 A method and apparatus for telephone line multiplex channeling of toll-quality voice and modem-encoded digital data from telecommunication devices (FAX, computers, displays, printers, etc.) involving variably sample-compression of digitally converted voice signals within successive time frames, and filling the resulting unoccupied time within each such frame with the modem-encoded digital data, and preferably with guard band signals separating the voice and modem-encoded digital data within each frame.
申请公布号 US5136586(A) 申请公布日期 1992.08.04
申请号 US19890444836 申请日期 1989.12.04
申请人 ACADEMY OF APPLIED SCIENCE 发明人 GREENBLATT, RICHARD D.
分类号 H04J3/16;H04M11/06 主分类号 H04J3/16
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