csboyer

6 ms·

1.
by csboyer 6y ago
For DSSS demod, my guess is a 20 tap match filter designed from a resampled RRC filtered barker sequence. Haven’t looked at the VHDL, but that’s how I’d do it.
2.
by csboyer 6y ago
No one who really knows can say due to NDAs. We just know rough order of magnitude price. I can see $30 million for 5nm. With material costs approaching $20 to $30 a chip for mobile SoCs, you need quite a high sales price and volume for the
3.
by csboyer 6y ago
Paying for the masks is the big upfront cost - into the $5 to $10s of millions depending on the process node.
4.
by csboyer 6y ago
Due to the frequency division/time division duplexing nature of 3GPP protocols, a mesh network is very challenging and non-trival. The 5G standardization has some study items on multi-hop networks, but that is a ways out and I’m not su
5.
by csboyer 6y ago
Knowing people in both the legal and software world, law is a tough profession with old world business expectations. Almost everything is “last minute” due to either court deadlines or your client dropping everything on you because somethin
6.
by csboyer 6y ago
The pointer variable does not contain the type - it only stores the address. Sizeof will return whatever the machine address width is. The type is implicitly stored as the pointers type. Casting a pointer can change a piece of memory to be
7.
by csboyer 6y ago
As far as I know, pregnancy suppresses the immune response in order to keep the body from attacking the baby itself. That’s why doctors recommend pregnant women not to eat under cooked eggs, sushi and other high risk food items. Flu shots a
8.
by csboyer 6y ago
Not at a FAANG company but I will ask stuff that might show up as “easy” on leet code. Examples: run length encoding problem or a bit extracting/setting question. I want to see if the candidate can formulate a simple state machine and
9.
by csboyer 6y ago
I’m sure Apple’s government relations attorney was involved in some way and helped keep the project siloed. There was likely some contract, but is buried now.
10.
by csboyer 6y ago
Aloha and slotted aloha are still fundamental to most wireless communication networks. Most prevalent is today’s cellular networks. An aloha like algorithm is used by your phone to initially bootstrap and connect to the network, and to acce
11.
by csboyer 6y ago
It seems that they outsourced almost everything to different companies rather than taking expertise in house. SpaceX seems to be doing everything themselves. Amazon seems to be doing a lot but will likely outsource launching of the birds. W
12.
by csboyer 7y ago
The last 10 years of life gets incredible expensive unless you children who want to be full time caregivers... $30K per year + social security likely will not cut it. $30K today will maybe just cover the in home assistance in a medium to lo
13.
by csboyer 7y ago
Even without ARM, I can see them using AMBA or AXI for the bus because there is so much existing IP out there built to that interface.
14.
by csboyer 7y ago
Copper mountain has some decent VNAs given the price point.
15.
by csboyer 7y ago
Too lazy to break out the stats, but a fair comparison would be international undergrad and grad as opposed to the aggregate. Harvard is actually a large graduate school that happens to teach some undergrads. Berkeley's main purpose is
16.
by csboyer 7y ago
In the cited statistics, they may be conflating energy production/refining with consumption. In Europe, the Benelux region has much higher consumption then their neighbors. A bit surprising given similar weather, their love for bicycle