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Technology Stocks : Rambus (RMBS) - Eagle or Penguin -- Ignore unavailable to you. Want to Upgrade?

To: John Walliker who wrote (75268)	7/7/2001 1:27:10 PM
From: Bilow	Respond to of 93625

Hi John Walliker; Re "This is a special case where a stuck bit will always result in a predictable pattern - the same bit position will be affected in each of the four 18-bit groups." (In reference to using 8-bits to correct possible 4 stuck bits in a 72-bit word.) First, you should just go and read the documents straight from Rambus. You will find that they did not implement your scheme. Maybe you should patent it, but I suggest you find a way to do the coding first, LOL. Second, If the driver is busted, you can't assume that it is "stuck". It could be driving noise. This is more common than you'd think, since if the driver's input ends up undriven and at high impedance, it's likely to pick up impossible to predict noise. We've all seen digital systems do this. The output current could be low, so that only some ones arrive at the driver. In short, digital systems are capable of creating errors far more complicated than "stuck", LOL!!! There is no way that you can cover these cases without having the denumeration I presented, and that's why Rambus didn't try it. -- Carl