JPS6446344A - Group broadcast communication system - Google Patents
Group broadcast communication systemInfo
- 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
Links
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.
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)
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 controller and communication controlling method |
US8105270B2 (en) | 2002-09-06 | 2012-01-31 | Massachusetts Institute Of Technology | Measuring properties of an anatomical body |
-
1987
- 1987-08-14 JP JP20279287A patent/JPS6446344A/en active Pending
Cited By (3)
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 controller and communication controlling method |
US8105270B2 (en) | 2002-09-06 | 2012-01-31 | Massachusetts Institute Of Technology | Measuring properties of an anatomical body |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2009055A6 (en) | Fast packetized data delivery for digital networks. | |
EP0621711A3 (en) | Switching system | |
GB1528584A (en) | Digital single signal line full duplex method and apparatus | |
JPS6467046A (en) | Multiplex repeating installation device for variable communication network | |
EP0382035A3 (en) | Dual dynamic priority control in a selective call system | |
JPS6446344A (en) | Group broadcast communication system | |
JPS54152903A (en) | Time-division multiple network system | |
DE3462651D1 (en) | Switching system | |
JPS6416043A (en) | Packet communication system | |
GB1473898A (en) | Data transmission systems | |
JPS55145460A (en) | Communication terminal unit and its exchange network | |
JPS5597760A (en) | Packet switching method of packet switching network | |
JPS57101450A (en) | Loop transmission system | |
JPS5599894A (en) | Connection system in-station between four wire type terminal units | |
JPS5614749A (en) | Equivalent communication system | |
JPS5735451A (en) | Interface device | |
JPS6486635A (en) | System for selecting radio channel | |
JPS5739637A (en) | Signal transmission system | |
JPS5539426A (en) | Emergency calling system for radio communication system | |
JPS57138240A (en) | Hairpin network | |
JPS5797238A (en) | Time division multidimensional connector | |
JPS5728461A (en) | Trunk test system | |
JPH03162153A (en) | Broadcast communication system | |
JPS5643864A (en) | Facsimile equipment | |
JPS6458047A (en) | Transaction processing system |