US 11,888,755 B2
Multidrop network system
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 Jul. 19, 2022, as Appl. No. 17/867,713.
Claims priority of application No. 110127183 (TW), filed on Jul. 23, 2021.
Prior Publication US 2023/0021997 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 47/62 (2022.01); H04L 12/413 (2006.01)
CPC H04L 47/6225 (2013.01) [H04L 12/413 (2013.01)] 17 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 at least one identification code as an identification in the multidrop network system, M transmission-permissible devices of the N network devices earning transmission opportunities in turn in each round of data transmission of the multidrop network system, each of the M transmission-permissible devices performing a count operation to generate a current count value, when the current count value reaching a first extreme value, the current count value is reset to a second extreme value, and the first extreme value and the second extreme value jointly define a count range of the current count value, wherein:
the M transmission-permissible devices include the master device and one of the (N−1) slave device(s);
the N is an integer greater than one, and the M is an integer greater than one but not greater than the N;
the first extreme value and the second extreme value are an upper limit and a lower limit of the count range respectively, or are the lower limit and the upper limit of the count range respectively;
a total number of the identification codes of the M transmission-permissible devices is not fewer than the N, and a difference between the first extreme value and the second extreme value is not fewer than the N;
when the identification code of a transmission-permissible device among the M transmission-permissible devices is the same as the current count value, the transmission-permissible device earns a transmission opportunity; and
during an Xth round of data transmission of the multidrop network system, a Kth device of the M transmission-permissible devices has multiple identification codes and earns multiple transmission opportunities, in which the total number of the identification codes of the M transmission-permissible devices is greater than the M, the K is a positive integer not greater than the M, and the X is a positive integer.