Title :
Low-cost video decoder with 2D2L comb filter for NTSC digital TVs
Author :
Wang, Chua-Chin ; Lee, Ching-Li ; Chang, Ming-Kai
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A low-cost video decoder for NTSC signals is present in This work. The proposed NTSC video decoder design employs a 2D2L comb filter, and a DDFS-based DCO (digital control oscillator) basing upon trigonometric quadruple angle formula in a digital PLL to track and lock the demodulation clocks. The complexity of the digital video decoder, hence, is drastically reduced.
Keywords :
comb filters; decoding; demodulation; digital control; digital phase locked loops; digital television; oscillators; synchronisation; television receivers; tracking; video coding; 2D2L comb filter; DDFS-based DCO; NTSC signals; complexity reduction; demodulation clock locking; digital PLL; digital TV; digital control oscillator; low-cost video decoder; tracking; trigonometric quadruple angle formula; Clocks; Colored noise; Decoding; Demodulation; Digital control; Digital filters; Digital-controlled oscillators; Jitter; PSNR; Phase locked loops;
Conference_Titel :
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-8838-0
DOI :
10.1109/ICCE.2005.1429813
