| 摘要 |
<p>An adaptive signal processing method and circuit for use in a digital recording/reproducing apparatus. The method recovers symbol timing from a signal obtained by equalizing an input signal including a known signal sequence, using an adaptive signal processing method comprising the steps of sampling (102) the input signal according to a sampling clock and outputting sampled data, detecting (106) whether the sampled data is the known signal sequence and detecting a track mode from the detected known signal sequence according to a predetermined track pattern, equalizing (104) the sampled data according to a predetermined equalization coefficient and outputting an equalized data, determining (110) the equalized data and outputting a determined data, and renewing (112,114) the equalization coefficient using an error between a prestored reference signal according to the track pattern and the equalized data, generating (116) the sampling clock for compensating for the error during the remaining known signal sequence period directly after the track mode is detected, renewing (112,114) the equalization coefficient using an error between the determined data and the equalized data, and generating (116) the sampling clock for compensating for the error during a period except the known signal sequence period. Therefore, adaptive signal processing such as timing recovery or equalization is performed using the known signal sequence like an ITI sector, thereby improving the performance of the DVCR. <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE></p> |
