Recent submissions

Comment · 10 months ago
You would prefer the inventor to be basically ensured of financial destruction and disincentivized in the first place, sounds great for society.
Comment · 11 months ago
Personally, I don't really see the value proposition in being able to load and serve you ads faster, compared to a browser with a proper ad blocker.
Comment · 7 years ago
None of these advantages invent you a novel radio technology that is competitive with 5G yet unencumbered by existing patents. Designing a modem to spec is the easy part.
Comment · 7 years ago
Comment · 7 years ago
When I was in China we saw this on many straight stretches of roads. Just watching.
Comment · 7 years ago
Yeah, its not like the sitting president introduced 25% steel tariffs and 10% aluminum tariffs or anything.
Comment · 7 years ago
You can draw a small amount of current from the logic signal in high state and store it in a small amount of capacitance, a low enough power device would be able to operate off of it. There is a class of sensors which use and interface called 1-wire which is ground and signal/power (2 pins).

You don't need a very accurate clock (quartz) for ~100 Mhz SPI. A ring oscillator is just a chain of inverters. If you want to match the bus frequency accurately you can train a PLL against the signal clock.

Not sure what the point is about the pullup, to flip the bit you need only to overpower the output buffers of the other chip.

Cramming it all in a 0402 would be a stretch but I could see it being possible with the right resources. Having only 2 pins would be pretty useless if you can't snoop the address though. And modern NOR devices on a motherboard is almost certainly using the high speed 4 pin serial interface rather than standard SPI.

Comment · 8 years ago
Scratch the logs, subpoena email records of Pai and direct reports.
Comment · 8 years ago
What do you do with 8MB when the OS is 512MB+? Adding NOR Flash is normally pretty simple -- No bad blocks and a standard SPI interfaces most embedded devices have controllers for. The high end controllers can typically map NOR flash directly into the system address space.
Comment · 8 years ago
Raw NAND is highly preferable to SD or USB drives. You can at least have wear leveling in the OS/FS. SD/USB are bad because most have dumb controllers and just rewrite a page when it changes. Raw NAND is also consistent and meets datasheet specs, whereas SD you never know what you are getting.
Comment · 8 years ago
Except most M0 cores will have 1 or 2 cycle internal flash memory reads, and this has slow external flash.
Comment · 8 years ago
> The number of electrons in a flash memory cell is in two digits.

I had worked on one of the last TLC NAND designs before the transition to 3D. You could only afford to leak 1 electron per year to meet the data retention spec... TLC did not make it market on that process/node.

Comment · 8 years ago
Tampering with evidence, which includes destroying evidence is also a crime. IANAL so I'm not sure at what point a phone becomes evidence, i.e. once there is a indictment, once there is a warrant, t=0, etc. John Carmack got in trouble for deleting emails in that IP case if I recall. A better privacy feature might be that the phone stores no history.
Comment · 8 years ago
If I had to estimate "common and noticeable" sightings based on our old office near twitter and my experiences:

Homelessness -- multiple per block

Excrement -- every other block

Public drug use (non pot) -- every other day

Public urination -- once per week

Public defecation -- once per month

I was assaulted at the street corner near our office once in the 1.5 years we were there.

My guess is that the homeless population is just too large to manage any reasonable degree of cleanliness.

Comment · 8 years ago
I doubt his experiences were primarily in the city -- absolutely no mention of homelessness, human excrement, or hypodermic needles, incredible!

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