US 11,943,077 B2
Multidrop network system and network device
Yung-Le Chang, Hsinchu (TW); Wen-Chih Fang, Hsinchu (TW); Deng-Shian Wang, Hsinchu (TW); and Shieh-Hsing Kuo, Hsinchu (TW)
Assigned to REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed by REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed on May 31, 2022, as Appl. No. 17/828,065.
Claims priority of application No. 110127184 (TW), filed on Jul. 23, 2021.
Prior Publication US 2023/0037027 A1, Feb. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 41/5054 (2022.01); H04L 12/40 (2006.01); H04L 12/403 (2006.01)
CPC H04L 12/4035 (2013.01) [H04L 12/40019 (2013.01); H04L 12/40084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multidrop network system comprising N network devices, the N network devices including a master device and (N−1) slave device(s), each of the N network devices having an identification code as an identification in the multidrop network system and thus the N network devices having N identification codes in total, the N network devices earning transmission opportunities in turn according to the N identification codes in each round of data transmission of the multidrop network system, and each of the N network devices performing a count operation to generate a current count value, wherein:
the N is an integer greater than or equal to two;
when the identification code of a Kth device of the N network devices is the same as the current count value, the Kth device earns a Kth-device transmission opportunity of the transmission opportunities, in which the K is a positive integer not greater than the N; and
after earning the Kth-device transmission opportunity, the Kth device makes a determination of 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 or defer a right to start transmitting in a back duration of the predetermined time slot according to the determination.