Slave Device And Slave Program

Abstract: A reception unit (221) receives, from a slave located on a downstream side, a frame addressed to a master located on an upstream side. A coupling relay unit (230) uses a received message authentication code, which is a message authentication code included in the received frame, to calculate a midway calculation result of the received message authentication code. The coupling relay unit couples, to a transmission data sequence included in the received frame, transmission data to be transmitted to the master. The coupling relay unit uses the midway calculation result to calculate a message authentication code for the transmission data sequence as coupled. A transmission unit (224) transmits, to the upstream side, a frame that includes the transmission data sequence as coupled and that includes, instead of the received message authentication code, the message authentication code calculated by use of the midway calculation result.

Patent Information

Application #

Filing Date

09 August 2021

Publication Number

33/2021

Publication Type

INA

Invention Field

COMMUNICATION

Status

Email

ipo@knspartners.com

Parent Application

Applicants

MITSUBISHI ELECTRIC CORPORATION

7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310

Inventors

1. IGAWA, Koki

c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310

Specification

Documents

Application Documents

#	Name	Date
1	202147035816-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [09-08-2021(online)].pdf	2021-08-09
2	202147035816-STATEMENT OF UNDERTAKING (FORM 3) [09-08-2021(online)].pdf	2021-08-09
3	202147035816-REQUEST FOR EXAMINATION (FORM-18) [09-08-2021(online)].pdf	2021-08-09
4	202147035816-PROOF OF RIGHT [09-08-2021(online)].pdf	2021-08-09
5	202147035816-POWER OF AUTHORITY [09-08-2021(online)].pdf	2021-08-09
6	202147035816-FORM 18 [09-08-2021(online)].pdf	2021-08-09
7	202147035816-FORM 1 [09-08-2021(online)].pdf	2021-08-09
8	202147035816-DRAWINGS [09-08-2021(online)].pdf	2021-08-09
9	202147035816-DECLARATION OF INVENTORSHIP (FORM 5) [09-08-2021(online)].pdf	2021-08-09
10	202147035816-COMPLETE SPECIFICATION [09-08-2021(online)].pdf	2021-08-09
11	202147035816-POA [24-08-2021(online)].pdf	2021-08-24
12	202147035816-MARKED COPIES OF AMENDEMENTS [24-08-2021(online)].pdf	2021-08-24
13	202147035816-FORM 13 [24-08-2021(online)].pdf	2021-08-24
14	202147035816-AMMENDED DOCUMENTS [24-08-2021(online)].pdf	2021-08-24
15	202147035816-Verified English translation [26-08-2021(online)].pdf	2021-08-26
16	202147035816.pdf	2021-10-19
17	202147035816-FORM 3 [09-02-2022(online)].pdf	2022-02-09
18	202147035816-FER.pdf	2022-03-11
19	202147035816-FORM 13 [11-04-2022(online)].pdf	2022-04-11

Search Strategy

1	newE_11-03-2022.pdf
2	FER-2022-03-11-12-38-46E_11-03-2022.pdf