Invention Grant
- Patent Title: Communication management apparatus, communication node, and communication system, and data communication method
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Application No.: US13334863Application Date: 2011-12-22
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Publication No.: US09350626B2Publication Date: 2016-05-24
- Inventor: Masato Nakamura , Tatsumi Yabusaki , Tomitsugu Sugimoto
- Applicant: Masato Nakamura , Tatsumi Yabusaki , Tomitsugu Sugimoto
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI ELECTRIC CORP.
- Current Assignee: MITSUBISHI ELECTRIC CORP.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Agent Richard C. Turner
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04L12/42 ; H04L12/417 ; H04L12/433 ; H04L12/403 ; H04L12/24

Abstract:
The communication management apparatus includes a network-presence-check processing unit that performs network presence check processing for generating network presence information, a token-circulation-order determining unit that determines token circulation order using the network presence information, a setup processing unit that notifies each of communication nodes in the network of token circulation destination information, a token-frame processing unit that, after transmission of a data frame by a data-frame-communication processing unit, transmits, based on the token circulation order, a token frame including information concerning a transmission right acquiring apparatus that acquires a transmission right next and determines whether the transmission right acquiring apparatus of the transmission right acquiring apparatus information of the received token frame is the own apparatus, and the data-frame-communication processing unit that performs transmission and reception processing for a data frame for acquiring the transmission right.
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