Abstract:
본 개시는 비디오 부호화시 복수 유닛들 사이의 처리 순서를 지정하고, 지정된 처리 순서에 따라 비디오를 복호화하기 위한 방법 및 장치에 관한 것이다. 이를 위한 비디오 신호 부호화 방법은, 부호화 대상 블록을 복수의 서브 블록들로 분할하는 단계, 상기 부호화 대상 블록에 포함된 서브 블록들의 처리 순서를 결정하는 단계, 및 상기 서브 블록들의 처리 순서에 대한 정보를 엔트로피 복호화하는 단계를 포함한다.
Abstract:
PURPOSE: A converged passive optical network (CPON) for a time division multiple access-passive optical network (TDMA-PON) service based on an orthogonal frequency division multiple access-passive optical network (OFDMA-PON) is provided to enable various protocols of TDMA-PON services to be received at the same time through a single OFDMA-PON. CONSTITUTION: A converged PON is a combination of a TDMA-PON and an OFDMA-PON. An optical line terminal (OLT) (201) of the CPON comprises an OLT interface unit (202), a subcarrier queue transmission unit (203), an OFDM frame processing unit (204), and an OFDM modem (205). The OLT interface unit is matched with an OLT of the TDMA-PON corresponding to each of a plurality of services of the TDMA-PON. The subcarrier queue transmission unit processes a subcarrier queue corresponding to each of the plurality of services. The OFDM frame processing unit processes an OFDM frame corresponding to each of the plurality of services. The OFDM modem transmits and receives the OFDM frame. [Reference numerals] (202) OLT interface unit; (203) Subcarrier queue transmission unit; (204) OFDM frame processing unit; (205) OFDM modem; (210) Lower subcarrier queue queue processing unit; (211) Upper subcarrier queue queue processing unit; (212) Frame parser unit; (213) First frame conversion unit; (214) Second frame conversion unit; (215) Subcarrier information processing unit; (216) Modulation/decoding unit; (217) Parallel-series conversion unit; (218) Digital-analog conversion unit; (219) Photoelectric conversion unit