发明名称 Downsized facsimile machine using semiconductor DAA
摘要 A facsimile machine having a semiconductor DAA provided in a line I/F part performing facsimile data communication with a network includes a tone signal reception part in the form of a semiconductor device. The tone signal reception part is provided in the semiconductor DAA and receives a tone signal with high impedance through a path different from a path for receiving the facsimile data. The tone signal is supplied from the network or a downstream device.
申请公布号 US7139104(B2) 申请公布日期 2006.11.21
申请号 US20020212540 申请日期 2002.08.05
申请人 RICOH COMPANY, LTD. 发明人 OKABE SHOUJI
分类号 H04N1/00;H04N1/32;H04M1/00;H04M11/00;H04M11/06;H04N1/327 主分类号 H04N1/00
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