发明名称 |
Interface circuit for utilizing a facsimile machine to a PC as a scanner or printer |
摘要 |
Apparatus for interfacing a conventional facsimile machine with a PC enabling the use of the facsimile machine as a scanner or printer. A first switch assembly selectively couples the PC modem and facsimile machine either to independent telephone lines in a normal mode or to one another in a scan print mode. A manually operated switch assembly is depressed for a brief interval sufficient to activate a ringing circuit which converts DC power from a small battery source to a 20 Hz sine wave of 90 volt amplitude and applies the sine wave signal to the PC to cause the PC or facsimile to enter into a scan or print mode, respectively. The manually operable switch is then released to apply a constant current to the facsimile machine to simulate an off-hook condition. A facsimile machine start button is then operated to start the facsimile machine which scans documents provided therein and transmits the scanned data in a conventional facsimile transmission format or activate the PC to transmit a fax in conventional facsimile transmission format to utilize the facsimile machine as a printer. The PC may be equipped with a suitable software program for converting non-graphic, i.e. such as word-type information into a binary format suitable for use in word processing applications and may store the data in a memory for subsequent use. An automatic circuit may be provided to initiate a scanning or printing mode responsive to receipt of a unique number received from either the facsimile machine or the PC, thus eliminating the need for switches.
|
申请公布号 |
US2009237742(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090322908 |
申请日期 |
2009.02.09 |
申请人 |
NACHMAN BRUCE GREGORY;NACHMAN MARVIN |
发明人 |
NACHMAN BRUCE GREGORY;NACHMAN MARVIN |
分类号 |
G06F3/12;H04N1/32;H04N1/00 |
主分类号 |
G06F3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|