A method for transmitting a signal with a signal transmission rate selected from a plurality of signal transmission rates applicable to a facsimile transmission system. The distortion amount of a distortion measurement signal transmitted from a transmitting equipment is measured at a receiving equipment...http://www.google.es/patents/US4630126?utm_source=gb-gplus-sharePatente US4630126 - Method of signal transmission with selected signal transmission rate
Method of signal transmission with selected signal transmission rate
