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Aucbvax.5672 fa.info-vax utzoo!decvax!ucbvax!info-vax Wed Dec 30 11:22:10 1981 MASSbus controller for 750 >From RUBENSTEIN@HARV-10 Wed Dec 30 11:07:09 1981 The System Industries Series 9400 controller that I mentioned previously is currently available only for the 780 MASSbus (as well as 11/70 Cache Bus and all unibus). Actually, it is NOT a Massbus controller; it plugs directly into the SBI and EMULATES a massbus. Herein lies the gist of DEC's suit; does this constitute infringement of the MASSbus patent? I don't know anything of the legalities involved, but I'd bet that SI is saying that the specs are public and emulators are not infringement, etc. Anyway, the guy from SI told me that they have two 780's and a 750 out in california; one 780 for internal DP and the other two machines for development. The 750 Massbus emulator should be out in the spring. I believe it's safe to say there are no other foreign massbus controllers on the market right now.

Stew

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