Abstract:
The circuit comprises a controller and memory which is used to control a fax, an address decoder which selects and enable the corresponding output port according to the input address, a modulator and a demodulator of fax which is selected and operated by the selection signal of the first chip, an asynchronous sender and an asynchronous receiver which interrupts when picture and text information is sent and received.
Abstract:
The format structure of control information can be discriminated from other image information or control code text information to perform effective protocol control when transmitting image information between facsimile and computer. The format is composed of an 1-byte head code [head code (a) meaning the start of control information, an 1-byte control code [control code (b) located just after the head code (a) to represent the kind of control, and a 2-byte control end code [control end code (c) .