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To: John Walliker who wrote (53595)9/16/2000 1:47:57 PM
From: Dan3  Respond to of 93625
 
Re: There were no memories available with on-chip registers to control the delay of an output latch. Were there?

There were no memories available with a lot of characteristics at one time. Like using electricity or running at 3 to 3.5 volts, or made in a given color. None of those aspects of design have been deemed patentable by anyone.

The courts will have to decide what constitutes an obvious application of prior art, and what doesn't.

Regards,

Dan



To: John Walliker who wrote (53595)9/18/2000 8:47:22 PM
From: Bilow  Respond to of 93625
 
Hi John Walliker; Probably the earliest DRAM with programmable registers was VRAM. It had quite a few, some having to do with access latency (on the serial side), and it predated 1990. There was also synchronous SRAM selling before 1990, and it had some features that presaged synchronous DRAM. That said, I agree that on-chip registers to control the delay of an output latch were not used before 1990. But there was no use for them before that time.

-- Carl

P.S. What's going on here? I disappear for 2 days, and 380 posts show up!