H Ding, J Fu - US Patent 11,881,158, 2024 - Google Patents
G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of …
XIE Jianfeng - US Patent App. 18/078,200, 2023 - Google Patents
G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of …