Title:
DIGITAL RE-SAMPLING APPARATUS USING FRACTIONAL DELAY GENERATOR
Document Type and Number:
WIPO Patent Application WO/2012/050267
Kind Code:
A1
Abstract:
Disclosed herein is a digital re-sampling apparatus. The digital re-sampling apparatus includes a sample buffer, a sample buffer control unit, a filter bank, a first delay bank, a fractional delay constant table, a combiner bank, and a second delay bank. The sample buffer temporarily stores an input sample in synchronization with an input sampling frequency. The sample buffer control unit controls writing and reading operations. The filter bank includes a number of digital filters equal to the number of stages, and filters the input sample. The first delay bank differentially delays a filter output value. The fractional delay constant table stores information about re-sampling time. The combiner bank includes a number of adders and multipliers, performs an operation, and outputs a re-sampled value. The second delay bank causes a delay so that output of each combiner can be synchronized with each output of the fractional delay constant table.
Inventors:
JOUNG JINSOUP (KR)
HA KYEONGMIN (KR)
LEE JOOHYEONG (KR)
HA KYEONGMIN (KR)
LEE JOOHYEONG (KR)
Application Number:
PCT/KR2010/009582
Publication Date:
April 19, 2012
Filing Date:
December 30, 2010
Export Citation:
Assignee:
INNOWIRELESS CO LTD (KR)
JOUNG JINSOUP (KR)
HA KYEONGMIN (KR)
LEE JOOHYEONG (KR)
JOUNG JINSOUP (KR)
HA KYEONGMIN (KR)
LEE JOOHYEONG (KR)
International Classes:
H03H17/02; H03H17/00
Foreign References:
| JP2009094763A | 2009-04-30 |
Other References:
J.Y.KIM ET AL.: "Arbitrary scaling of images using an M-channel DFT filter ban k with optimized adaptive interpolation kernels", IEICE ELECTRONICS EXPRESS, vol. 4, no. 21, November 2007 (2007-11-01), pages 665 - 671
J.Y.KIM ET AL.: "Design of a new DFT filter bank with modified sampling kernel s and its application to arbitrary image scaling", IEICE ELECTRONICS EXPRESS, vol. 6, no. 2, January 2009 (2009-01-01), pages 58 - 64
J.Y.KIM ET AL.: "Design of a new DFT filter bank with modified sampling kernel s and its application to arbitrary image scaling", IEICE ELECTRONICS EXPRESS, vol. 6, no. 2, January 2009 (2009-01-01), pages 58 - 64
Attorney, Agent or Firm:
DARAE IP FIRM (647-9 Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)
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