Transmission system of a packet signal in an integrated...

Details Transmission system of a packet signal in an integrated... Transmission system of a packet signal in an integrated...

H - Electricity

04

L

344/28

H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1314320

Abstract of the Disclosure: For integration of ISDN system and LAN system, a flexible frame format is provided which comprises a frame identifier (FID) field, an address (ADDRESS) field, an data (DATA) field, and a frame check sequrnce (FCS) field. In a transmitting portion in the integrated system, a desired one of an ISDN data unit and an LAN data unit, an address information of a destination address DA and a source address SA, the FID indicating a type of the data unit, and the FCS are inserted in the data field, the address field, the FID field and the FCS field, respectively, to form a packet signal which is transmitted therefrom. In the receiving portion for the packet signal in the integrated system, the type of the data unit is discriminated from the FID and the address information in the packet signal, and the packet signal is processed at a corresponding one of ISDN data and LAN data processor. The use of the frame format enables to form the integrated network system in various forms. The frame format allows modification by addition of any control field. Therefore, the frame format is also used in an integrated LAN system of different type LAN systems.

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