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:
May. 28, 2019
Filed:
Jan. 16, 2017
Ntt Electronics Corporation, Yokohama-shi, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Yasuharu Onuma, Kanagawa, JP;
Masahiro Tachibana, Kanagawa, JP;
Etsushi Yamazaki, Kanagawa, JP;
Kazuhito Takei, Kanagawa, JP;
Yuki Yoshida, Kanagawa, JP;
Masayuki Ikeda, Kanagawa, JP;
Yoshiaki Kisaka, Kanagawa, JP;
Masahito Tomizawa, Kanagawa, JP;
NTT ELECTRONICS CORPORATION, Yokohama-Shi, Kanagawa, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
An FIR filter convolutes sampled data obtained by sampling a reception signal with tap coefficients. A phase difference detector detects a phase difference between a synchronization timing of a signal waveform estimated from an output signal of the FIR filter and a sampling timing of the output signal. A tap coefficient adjuster adjusts the tap coefficients so as to reduce the phase difference detected by the phase difference detector and causes the sampling timing of the output signal of the FIR filter to track the synchronization timing.