Abstract: A multidrop network system includes N network devices. The N network devices include a master device and multiple slave devices, and each network device has an identification code as its own identification in the multidrop network system. The N network devices have N identification codes and obtain transmission opportunities in turn according to the N identification codes in each round of data transmission. Each network device performs a count operation to generate a current count value, and when the identification code of a network device is the same as the current count value, this network device obtains a transmission opportunity. After a device obtains the transmission opportunity, it determines whether a cut-in signal from another network device is observed in a front duration of a predetermined time slot, and then determines whether to abandon/defer the right to start transmitting in the remaining duration of the predetermined time slot.

Abstract: A computer-implemented method is disclosed for speeding up database access of electronic design automation (EDA) tool which utilizes a database manager for file access. The EDA tool accesses a plurality of design files, and each of the plurality of design files is associated with one of a plurality of design units for an integrated circuit (IC). The plurality of design files are encapsulated into an archive file which comprises a plurality of data units, wherein each of the data units corresponds to a design file. A request to access a design file will be redirected to access the archive file. The design file is then accessed by accessing the corresponding data unit in the archive file.

Abstract: A computer-implemented method is disclosed for speeding up database access of electronic design automation (EDA) tool which utilizes a database manager for file access. The EDA tool accesses a plurality of design files, and each of the plurality of design files is associated with one of a plurality of design units for an integrated circuit (IC). The plurality of design files are encapsulated into an archive file which comprises a plurality of data units, wherein each of the data units corresponds to a design file. A request to access a design file will be redirected to access the archive file. The design file is then accessed by accessing the corresponding data unit in the archive file.