Industrial Technology Research Institute

Tsinghua University

Po-Tsun Chen

Chien-Chung Chen

Arnold Chang-Mou Yang

Muh-Rong Yang

Yun-Yen Chen

Ho-Chi Hwang

The present invention provides a method for enhancing optoelectronic properties of polymers that contain conjugated moieties in their molecular structures (hereby denoted as 'conjugated polymers'), to be used in lighting, photovoltaics, other various optoelectronic devices and applications. The method of the present invention includes preparing a conjugated polymer layer or multiple conjugated polymer layers and imprinting the conjugated polymer layer or layers through the application of a mold or multiple molds.

Method for enhancing optoelectronic properties of conjugated polymers

The present invention provides an apparatus and method for code group identification and frame synchronization for cell searching used in wide-band DS-CDMA cellular systems. This method characterizes each secondary synchronization code sequence (SSCS) with a corresponding theoretical frequency sequence, which represents the occurrence times of CS to CS in a corresponding SSCS. Thus, 64 secondary synchronization code sequences corresponding to 64 code groups defined in DS-CDMA systems also corresponds to 64 theoretical frequency sequences. By characterizing the SSCS transmitted by a base station, a real frequency sequence can be generated. Comparing the real frequency sequence with the 64 theoretical frequency sequences, one can determine one or two candidate code groups, which may be employed by the base station. Finally, one can compare the SSCS transmitted by the base station with all the possible SSCSs corresponding to the candidate code groups to determine a specific code group and a frame boundary for the base station.

Method and apparatus for code group identification and frame synchronization in DS/CDMA systems

Growing community of inventors

Hsinchu, Taiwan

Po-Tsun Chen