公开(公告)号：US09288095B1

公开(公告)日：2016-03-15

申请号：US14597228

申请日：2015-01-15

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Chun Feng ,  Yung-Hua Hung ,  Yuan-Hsin Chuang ,  Chung-Hsien Hsieh

IPC: H04K1/10 ,  H04L27/26

CPC classification number: H04L27/2666 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675 ,  H04N5/50 ,  H04N21/4382

Abstract: A signal receiving system, a band detection method for a multi-carrier signal and a demodulating apparatus thereof. Each carrier of the multi-carrier signal has a plurality of symbols respectively corresponding to a plurality of time. The band detection method includes: defining a scan area range according to a full band range of the multi-carrier signal; obtaining a reference symbol corresponding to each of the symbols according to time and frequency offset values in the scan area range; performing an operation on each of the symbols and corresponding reference symbol to obtain calibration information of each carrier of the multi-carrier signal; tuning the full band range of the multi-carrier signal according to the calibration information thereof.

Abstract translation: 信号接收系统，多载波信号的频带检测方法及其解调装置。 多载波信号的每个载波具有分别对应于多个时间的多个符号。 频带检测方法包括：根据多载波信号的全频带范围定义扫描区域范围; 根据扫描区域范围内的时间和频率偏移值获得与每个符号对应的参考符号; 对每个符号和对应的参考符号执行操作以获得多载波信号的每个载波的校准信息; 根据其校准信息调整多载波信号的全频带范围。

公开(公告)号：US20160072606A1

公开(公告)日：2016-03-10

申请号：US14534179

申请日：2014-11-06

Applicant: Novatek Microelectronics Corp.

Inventor： Yuan-Hsin Chuang ,  Chung-Hsien Hsieh

IPC: H04J11/00 ,  H04W24/08

CPC classification number: H04L27/2607 ,  H04L27/2666 ,  H04W24/08

Abstract: A device and a method for detecting a guard interval (GI) of an orthogonal frequency division multiplexing (OFDM) signal are provided. The device includes a signal transforming unit and a GI determining unit. The signal transforming unit receives the OFDM signal and sets a predetermination GI to provide a first frequency-domain symbol and a second frequency-domain symbol. The GI determining unit receives the predetermination GI, the first frequency-domain symbol and the second frequency-domain symbol to determine a phase difference between the first frequency-domain symbol and the second frequency-domain symbol and determines the GI of the OFDM signal according to the phase difference.

Abstract translation: 提供了用于检测正交频分复用（OFDM）信号的保护间隔（GI）的装置和方法。 该装置包括信号变换单元和GI确定单元。 信号变换单元接收OFDM信号并设置预定GI以提供第一频域符号和第二频域符号。 GI确定单元接收预定GI，第一频域符号和第二频域符号，以确定第一频域符号和第二频域符号之间的相位差，并根据 到相位差。