Patent ID: 6175742
Filing Date: 2001-01-16
Classification: H04N

Abstract:
An image transmission apparatus comprising:a first unit having a facsimile function;a second unit receiving a facsimile signal from a calling party's facsimile machine through a telephone line, said second unit operating in a radio transmission mode and a facsimile mode, the radio transmission mode being to transmit the received facsimile signal together with an operation procedure signal to said first unit using a radio signal and also to transmit to the calling party's facsimile machine through the telephone line an operation procedure signal sent via a radio signal from said first unit to said second unit for establishing facsimile communication between the calling party's facsimile machine and said first unit, the facsimile mode being to establish facsimile communication with the calling party's facsimile machine instead of said first unit;field strength detecting means for detecting a level of field strength of the radio signal transmitted from said first unit to said second unit; andswitching means for switching between the radio transmission mode and the facsimile mode of said second unit according to the level of the field strength detected by said field strength detecting means, said switching means controlling said second unit so as to operate in the facsimile mode in communication with the calling party's facsimile machine when the detected level of the field strength becomes smaller than a preselected level,wherein said second unit includes a memory for storing therein the facsimile signal in the facsimile mode, said second unit transmitting the facsimile signal stored in the memory to said first unit after completion of the facsimile communication with the calling party's facsimile machine in the facsimile mode when the field strength detected by said field strength detecting means exceeds the preselected level, andsaid second unit has printing means for printing out the facsimile signal received in the facsimile mode.