JPS6446344A - Group broadcast communication system - Google Patents

Group broadcast communication system

Info

Publication number
JPS6446344A
JPS6446344A JP20279287A JP20279287A JPS6446344A JP S6446344 A JPS6446344 A JP S6446344A JP 20279287 A JP20279287 A JP 20279287A JP 20279287 A JP20279287 A JP 20279287A JP S6446344 A JPS6446344 A JP S6446344A
Authority
JP
Japan
Prior art keywords
group
communication control
address
packet
control equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP20279287A
Other languages
Japanese (ja)
Inventor
Masayuki Koyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP20279287A priority Critical patent/JPS6446344A/en
Publication of JPS6446344A publication Critical patent/JPS6446344A/en
Pending legal-status Critical Current

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  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To perform the multi-address calling of only a second group without changing the constitution of a communication control equipment, by deleting a packet when abnormal results are generated in the inspection of frame check sequence of communication control equipments in first and second groups, and performing the multi-address calling in a specific group. CONSTITUTION:The communication control equipment 1 in the first group receives the multi-address packet of the second group having the same multi-address as a conventional one similarly as the multiple packet of the first group, however, when no coincidence between the computed result of a frame check sequence inspection circuit (FCS1CHK)10 and an expected value is obtained, the content of a reception buffer 7 is deleted. In another communication control equipment 2 in the first group, the content of the reception buffer is deleted. Meanwhile, the transmission/reception part 18 of the communication control equipment 3 in the second group receiving the multiple address packet outputs multiple address reception signal 21, and a selection circuit 17 selects the output of an FCS2CHK12. The multiple address packet of the second group is received since the coincidence between the computed result of the FCS2CHK12 and the expected value can be obtained. Another communication control equipment 4 in the second group can receive the multi-address packet similarly.
JP20279287A 1987-08-14 1987-08-14 Group broadcast communication system Pending JPS6446344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20279287A JPS6446344A (en) 1987-08-14 1987-08-14 Group broadcast communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20279287A JPS6446344A (en) 1987-08-14 1987-08-14 Group broadcast communication system

Publications (1)

Publication Number Publication Date
JPS6446344A true JPS6446344A (en) 1989-02-20

Family

ID=16463270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20279287A Pending JPS6446344A (en) 1987-08-14 1987-08-14 Group broadcast communication system

Country Status (1)

Country Link
JP (1) JPS6446344A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63185906A (en) * 1986-11-24 1988-08-01 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー Herbicidal sulfonamides
JP2003092570A (en) * 2002-07-22 2003-03-28 Toshiba Corp Communication control device and communication control method
US8105270B2 (en) 2002-09-06 2012-01-31 Massachusetts Institute Of Technology Measuring properties of an anatomical body

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63185906A (en) * 1986-11-24 1988-08-01 イー・アイ・デユポン・デ・ニモアス・アンド・カンパニー Herbicidal sulfonamides
JP2003092570A (en) * 2002-07-22 2003-03-28 Toshiba Corp Communication control device and communication control method
US8105270B2 (en) 2002-09-06 2012-01-31 Massachusetts Institute Of Technology Measuring properties of an anatomical body

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