Invention Grant
US07079194B2 Radio frequency modulator having C/L delay compensation function, and set-top-box using the same
失效
具有C / L延迟补偿功能的射频调制器,以及使用其的机顶盒
- Patent Title: Radio frequency modulator having C/L delay compensation function, and set-top-box using the same
- Patent Title (中): 具有C / L延迟补偿功能的射频调制器,以及使用其的机顶盒
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Application No.: US10367828Application Date: 2003-02-19
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Publication No.: US07079194B2Publication Date: 2006-07-18
- Inventor: Jong Jin Lee , Sang Suk Kim , Chae Dong Go , Youn Joong Lee , Kyoung Soo Kwon
- Applicant: Jong Jin Lee , Sang Suk Kim , Chae Dong Go , Youn Joong Lee , Kyoung Soo Kwon
- Applicant Address: KR Kyungki-Do
- Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee Address: KR Kyungki-Do
- Agency: Lowe Hauptman & Berner, LLP.
- Priority: KR10-2002-0008688 20020219; KR10-2002-0024740 20020506
- Main IPC: H04N5/40
- IPC: H04N5/40

Abstract:
An RF modulator includes a C/L delay compensation function of compensating for a delay of a luminance signal with respect to a chrominance signal occurring during demodulating a video signal in a TV set. The RF modulator includes a C/L delay compensation unit delaying a luminance signal by 170 nsec and combining the delayed luminance signal with a chrominance signal to output a composite image signal having a C/l delay of −170 nsec and a frequency modulation unit modulating the video signal received from the C/L delay compensation unit into a high frequency signal of a predetermined broadcasting channel in a single module or package. The RF modulator outputs a video signal having the luminance signal delayed by 170 nsec with respect to the chrominance signal and complies with a C/L delay standard without adding any additional C/L delay compensation unit to the RF modulator.
Public/Granted literature
- US20030156228A1 Radio frequency modulator having C/L delay compensation function, and set-top-box using the same Public/Granted day:2003-08-21
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