| 摘要 |
PCT No. PCT/DE93/00968 Sec. 371 Date Jun. 12, 1995 Sec. 102(e) Date Jun. 12, 1995 PCT Filed Oct. 12, 1993 PCT Pub. No. WO94/10760 PCT Pub. Date May 11, 1994An echo compensation device, having a digital transverse filter, for an information transmission system is described, as well as a 4/2-wire interface having at least one such device. Accordingly, a scale value device is provided which respectively evaluates the value of the input signal and also the values of the time-delayed signals of the transverse filter and establishes a scale value as a function thereof. Furthermore, a device is provided for scaling all the signal values with the associated scale value before these are weighted with the respectively assigned filter coefficients. After addition of the weighted scaled signal values has been performed, the value of the output signal is descaled with the same scale value with which the signal values had previously been scaled. |
