The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2000
Filed:
Feb. 20, 1998
Myeong-hwan Lee, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A method and circuit in a digital recording/reproducing apparatus are provided for adaptively processing symbol timing recovery and equalization for an input signal including known signal sequence. The adaptive signal processing method includes the steps of sampling the input signal according to a sampling clock and outputting sampled data, detecting whether the sampled data is a known signal sequence and detecting a track mode from the detected known signal sequence according to a predetermined track pattern. The sampled data is equalized according to a predetermined equalization coefficient to generate equalized data. The equalization coefficient is renewed using an error between a prestored reference signal according to the track pattern and the equalized data. Next, the sampling clock for compensating for the error is generated during the remaining known signal sequence period directly after the track mode is detected, the equalization coefficient is renewed using an error between determined data and the equalized data, and the sampling clock is generated 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 digital recording/reproducing apparatus.