| 摘要 |
<p>A method and apparatus for adapting an information carrying signal ( 25, 26 ) is described. The method involves the controllable introducing of sub-pulses ( 17, 18, 19 and 20 ) to the data pulses of an information carrying signal ( 25 ) which effectively allows the controllable removal of energy from the information carrying signal ( 25 ). The method and apparatus can be readily employed within a transmitter ( 2 ) of a communication system so as to overcome signal impairment effects within the system or to act as a frequency bandpass filter. The invention has particular application as an equalisation element in the field of fibre optic communications networks so as to counteract dispersion and other complex signal impairments</p> |
