Industrial Technology Research Institute

Chih Hung Hsu

Yu-Min Lin

Maria C Yuang

Shi-Wei Lee

Ju-Lin Shih

Yu Ping Yu

Shih-Hsuan Lin

Jenn Kaie Lain

Ching Lung Chang

A parallel-to-serial conversion method for IBMA in a Reed Solomon decoder is used for obtaining discrepancies in IBMA iterations, thereby acquiring an error location polynomial and an error value polynomial. Syndrome sequences for the calculation of discrepancies in IBMA iterations have a fixed length. The number of syndromes is t+1, where t is the largest number of symbols that can be corrected of the error location polynomial. The feature that syndrome sequences have the same length is based on the fact that the discrepancies are not affected if the coefficients of polynomial orders of the error location polynomial are zero.

Reed solomon decoder and IBMA method and parallel-to-serial conversion method thereof

Disclosed is a distributed controlled passive optical network system and bandwidth control method thereof. The system comprises an optical line terminal (OLT), plural optical network units (ONUs) and a splitter with combiner. Each ONU has a first Tx/Rx for respectively transmitting and receiving data packets on an upstream data channel and a downstream data channel, and a second Tx/Rx for transmitting and receiving control signals/commands on a control channel. Upstream data of each ONU is carried by the upstream data channel and sent to the OLT through the splitter with combiner. Downstream data of the OLT is carried by the downstream data channel and sent to corresponding ONUs through the splitter with combiner. With the control signals/commands carried by the control channel, the required information of network status among the ONUs is provided.

Distributed controlled passive optical network system and bandwidth control method thereof

Growing community of inventors

Taichung County, Taiwan

Chih Hung Hsu