Invention Grant
- Patent Title: Digital television receiver
- Patent Title (中): 数字电视接收机
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Application No.: US11436217Application Date: 2006-05-18
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Publication No.: US07787059B2Publication Date: 2010-08-31
- Inventor: Beom-Kon Kim , Zhidkov Sergey
- Applicant: Beom-Kon Kim , Zhidkov Sergey
- Applicant Address: KR Suwon-Si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-Si
- Agency: F. Chau & Associates, LLC
- Main IPC: H04N5/54
- IPC: H04N5/54

Abstract:
A ATSC compliant digital television (DTV) receiver including an image rejection filter, an interpolator, a numerically controlled oscillator (NCO), a matched filter unit, a frequency converter, and a DC remover. The image rejection filter removes (filters out) an unwanted image signal and an adjacent channel's interference signal from a first intermediate frequency (IF) signal sampled at a first sampling frequency. The interpolator resamples (at a second sampling frequency) a signal output from the image rejection filter and compensates for a predetermined symbol timing offset in response to a first control signal, thereby outputting a second IF signal. The NCO down converts the second IF signal and simultaneously compensates for a predetermined carrier offset in response to a second control signal, thereby outputting a first complex signal. The matched filter unit receives the first complex signal and filters the first complex signal, thereby outputting a second complex signal. The frequency converter generates a third complex signal having a double side band from the second complex signal output from the matched filter unit. The DC remover removes (filters out) a pilot signal from a DC signal included in the third complex signal output from the frequency converter.
Public/Granted literature
- US20070268408A1 Digital television receiver Public/Granted day:2007-11-22
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