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:
Oct. 09, 2007
Filed:
Mar. 19, 2003
Jun-young Jeong, Kyunggi-do, KR;
Dong-hee Han, Kyunggi-do, KR;
Jun-Young Jeong, Kyunggi-do, KR;
Dong-Hee Han, Kyunggi-do, KR;
Abstract
A digital subscriber line (DSL) receiver includes a discrete multitone (DMT) receiver circuit operative to receive a DSL signal and to generate signal samples corresponding to respective frequency division multiplexed tones of the DSL signal. The receiver further includes a synchronization circuit operative to determine phase information for a crosstalk source indication signal, e.g., an integrated services digital network (ISDN) timing reference indication signal, carried by one of the plurality of frequency-division multiplexed tones from the signal samples generated by the DMT receiver circuit and to determine frame timing for the DSL signal responsive to the determined phase information. The DMT receiver circuit may include a buffer operative to receive and store samples of the DSL signal, and a fast Fourier transformer (EFT) operative to generate the signal samples for the respective ones of the plurality of frequency-division multiplexed tones from the stored samples of the DSL signal. The synchronization circuit may be operative to control transfer of stored samples of the DSL signal from the buffer to the FFT responsive to the determined phase information.