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patrickyeon

2,103 karma · joined August 21, 2010

Sure, I'd like to hear from you! Same user name, @gmail.com

Working contracts here and there, thinking about where I want to head next.

I'm an EE, previous jobs had me (alongside other tasks) designing spacecraft and supporting on-orbit operations (Open Lunar Foundation, Planet Labs), designing wideband RF receivers and writing software to help in that design (ThinkRF), and designing toy robots and the systems that helped us produce those robots (Romotive).

Sometimes, code I write makes it on to github. http://github.com/patrickyeon

submissionscomments
patrickyeon··on ISRO to launch Google satellite
Cubesats etc. are going to lead to a whole lot of new records that don't mean anything over the next bit of time. FWIW, Orb-1 was an ISS resupply, so you could argue that it didn't really deploy those satellites, just shipped them up to the ISS. However, a Dnepr launch back in June carried 37 satellites and deployed them in to orbit (11 of those belonged to my employer, Planet Labs). http://www.parabolicarc.com/2014/06/19/dnepr-launches-37-sat...

I just glanced at the PSLV wikipedia page, and it looks like it's mostly for polar orbits. That's pretty cool, as it's quite different from the ISS' 55 degree inclination orbit that the commercial resupplies can get you, and changing inclination is expensive in terms of fuel.

As a guy with vested interest in getting more satellites up in orbit, this is great news!

patrickyeon··on Ask HN: New to freelance, better to charge per hour or per project?
Per hour, with a minimum number of hours. Fixed-bid (per project) is a sucker's game, and you can sell your clients on per-hour like this:

"Some clients, not you of course, will take advantage of a fixed bid to waste everybody's time tweaking things that don't matter, or expanding the scope beyond what was originally intended or agreed upon. If I were to accept fixed-bid contracts, I'd have to heavily charge more than what I figure it will actually cost to make up for the people who will abuse the contract like that. The only way for me to be fair with you is to ask for a fair price per-hour. That way the clients who do want to waste my time can pay for it, and those that don't waste my time can save money."

patrickyeon··on Lyft for Work
Googlebot has been executing some limited amount of JS for some time. See http://googlewebmastercentral.blogspot.com/2011/11/get-post-...
patrickyeon··on Sorry, We Have No Imagery Here: When Google Earth Goes Blind
Reminds me of one of my favourite Wikipedia lists: http://en.wikipedia.org/wiki/Satellite_map_images_with_missi...

It's fun that some of the sites have useable imagery on one service but not another.

patrickyeon··on A clock that can detect tiny shifts in the flow of time itself
The heating setup is still used today. In fact, you can get integrated components called OCXOs (Oven Controlled Crystal Oscillator) that do the whole job in one small package with precision over time on the order of 1ppb. Cheaper, and less precise, are TCXOs (Temperature Compensated Crystal Oscillators) where a crystal is paired with a circuit that has an opposite dependency on temperature so that the errors tend to cancel each other out.
patrickyeon··on Ask HN: Who is hiring? (September 2014)
Sorry about that, I sure hope we're not just dropping applicants on the floor. If you email me directly with your name and position you applied for, I'll personally ask and get back to you about where you are in the process.
patrickyeon··on Ask HN: What's your best startup idea that you're not going to pursue?
Please yes. I had hopes for Lava (1) but haven't heard much about it since I first read that page. The author might still be in the space? (2)

1. http://raintown.org/lava/ 2. http://www.cs.bham.ac.uk/~singhsu/

patrickyeon··on Ask HN: Who is hiring? (September 2014)
I'm not actually in charge of the hiring, and I think remote is on a per-team/-candidate basis. We currently have at least a couple remote employees in the UK though, so if you think you'd fill out one of the postings, please do apply!
patrickyeon··on Ask HN: Who is hiring? (September 2014)
San Francisco - Planet Labs - INTERN/REMOTE/VISA all OK

At Planet Labs we create and manage a constellation of 3U cubesats (30x10x10 cm) with the goal of imaging the entire Earth, every day. As an engineer, you can touch on spacecraft design, optics, communications, image processing, operations/optimization, GIS, and a bunch more. I'm a EE and I'm currently working on groundstation hardware, but there is a lot of work to go around that will push you beyond just web development.

Come build real hardware that will then be sent to space! https://www.planet.com/join-our-team/

Feel free to reach out to me directly: patrick@ you can guess the domain.

patrickyeon··on Why Don’t Restaurants Charge for Reservations?
No, but I'd happily make a non-refundable down-payment on my meal in exchange for a reservation, especially for short notice (<48 hours) reservations. I'd much rather such a system than any of (1) restaurant won't take any reservations, (2) no reservations for the next 2 months, (3) paying for a scalped reservation, (4) and/or waiting in line.
patrickyeon··on The Strange and Curious Tale of the Last True Hermit
That doesn't even need to be future tense. The "September issue" often means the "display until September" issue for periodicals.
patrickyeon··on A texture-mapped raycaster in 128 bytes
As CountHackulus says, basically "drama". If it amuses you for some reason, you might want to check out "Jason Scott - You're Stealing It Wrong! 30 Years of Inter-Pirate Battles" from Defcon 18. http://youtu.be/QCAL_YgYiP0 The meat of the talk starts around 24min.

edit: while re-watching, I should warn you lots of foul language and some NSFW imagery

patrickyeon··on I Can’t Afford a Bachelor’s Degree, So I’m Making My Own
"Tech" means technician. Generally they do the things that need some understanding of electronics, but not full-on "Engineer" knowledge/skillset. It might be anything from assembly, test, troubleshoot, characterize, document... but not likely design, research, develop.
patrickyeon··on Doom on ZPU
The gun is not what he's talking about, just another thing named 'ZPU'. The link right after that is what he's talking about, the 32 bit open source CPU. It is designed using a Hardware Description Language that can then be loaded into a re-configurable chip to make said chip, or part of it, act as a CPU.

http://opensource.zylin.com/zpu.htm

patrickyeon··on AT&T to Buy DirecTV for $48.5 Billion
Aaand for the sake of posterity, that's actually 3Mbit. 3Kbit video doesn't really make sense.
patrickyeon··on What does GCHQ know about our devices that we don't?
There is a possibility that GCHQ knows these chips are storing data without users knowing it.

It's equally possible that GCHQ isn't sure that they aren't storing data (double negative, I know). Or that GCHQ wants to be sure nobody at the Guardian was savvy enough to sneak data on to these chips.

I'm not suggesting one or the other is more likely, I really wouldn't know. I find it more interesting that they felt the need to do this, when really the only assurance they have that the documents are destroyed is the word of the Guardian's employees. Other than someone speaking up, there's no way for anybody to actually know if there are other copies floating around.

patrickyeon··on To Get a Home in San Francisco, First Get a $200,000-a-Year Job
My understanding of property tax in SF is that it is based on the price the house was purchased at. This means that the home you've owned forever has had a predictable tax based on that price, and only new owners you sell it to will be paying the higher cost tied to higher property value.
patrickyeon··on I’m bailing on San Francisco
Except he says specifically that working too much is not the problem:

I don’t go home late. I go home at five. It’s not work/life balance that’s the issue. I’m just not psyched for the ‘life’ part.

patrickyeon··on AT&T to Buy DirecTV for $48.5 Billion
FWIW, Gamecenter has had decent feeds for me; it annoys me that the browser viewer won't play the best quality (it only does 3Kbit, 30fps I think), but the ipad app will play 60fps HD streams. Missing blackout and playoff games is the worst though.
patrickyeon··on Y Combinator Female Founders Conference LiveStream
When people start whining about events or programs like this, I like to send them off to read "When I Moved Abroad"[1], a blog post by that was like flipping a switch in my mind that suddenly made these things make so much more sense.

[1] https://blog.mozilla.org/it/2013/03/29/when-i-moved-abroad/

patrickyeon··on Arduboy: The Interactive Digital Business Card
EAGLE is the tool they know. All their files are already in EAGLE's format, and even if KiCAD can "mostly" do import, that's not quite a matter of being able to pick up your design and keep on going.

In the electronics world, tool lock-in is a very real, strong, and painful force.

patrickyeon··on Ask HN: Who is hiring? (March 2014)
You say "ON-SITE", but not where that is. "Silverlake, Los Angeles, California" in case anyone else is wondering.
patrickyeon··on A birthday present from Broadcom
That's really a surprise. Broadcom is cemented in my mind as one of the hardest companies to get even basic datasheets out of.

I know the saying is "don't look a gift horse in the mouth", but could it be that their graphics cores are not competitive in pure technical capabilities, so they've decided to compete on open-ness? I'm not really involved in that area of hardware/software.

patrickyeon··on Apple is shutting down OpenNI
Is there more information available than just that quick statement on the front page? The about page calls openNI a consortium and lists 5 founding companies [1].

[1] http://www.openni.org/organization/

patrickyeon··on Early screenshots of Twitter ('06), Facebook ('05), and Tumblr ('07)
For those wondering, the relevant line: "All time $277,447.49"

While glancing at the data though, it appears something must have shifted about 12 months ago and you're on track to make a lot less than you had up through 2012.

patrickyeon··on 3D GIFs Created with a Simple Visual Effect
After the bubbling, the people aren't any "more naked" than before. Their clothes are no longer visible, sure, but the people aren't any more exposed.
patrickyeon··on Serious Science
So do I, and I wonder if there's a more reasonable way to monetize this than youtube (assuming it's meant to make money). I'd much rather sign up for an RSS podcast than set up a cronjob to download the video and rip the audio (which would also mean no money from youtube for them).
patrickyeon··on Nvidia's G-Sync: Attempting to Revolutionize Gaming via Smoothness
Your question was answered; it has nothing to do with the case where you're "generating thousands of frames and throwing them away". What you want is a rendering engine that will perform at 60fps in the worst case. What engine devs want to write is an engine that can do better (even much much better) than 60fps in the average case, and be allowed to slip in those pathological cases. Gamers want more frames. More frames than is noticeable. They want some slack so that if something totally unrelated to the game ties up the machine, the framerate drop is not noticeable. They want to be able to double it so that they can drive a 3D display but still have the same effective framerate per eye.

Having a consistent 40fps is much worse (for a gamer) than a variable framerate that will dip down to 40fps for 1% (or 10%) of the play time. Having to limit your most complex scene to what can be guaranteed rendered at 60fps is much less appealing to a developer than making sure all the likely scenes can render at 60fps.

patrickyeon··on Yahoo Acquires Bread, Will Shut Down The URL Shortener That Earned You Money
The acquiring company gets the entire staff (or at least everyone who comes along). Assuming the company being acquired has built up a decent product, you can see the acqui-hire as a recruiting move, where you're hiring on a group that has shown they can work together, ship product, and all the members have already been vetted by somebody else. The purchase price is really just a recruiter's fee and hiring bonus bundled together.
patrickyeon··on Yahoo Acquires Bread, Will Shut Down The URL Shortener That Earned You Money
They could also just join 301Works[0], who seem to some degree affiliated with the Internet Archive and will keep on running the redirect if they are given technical control of the domain.

[0] http://archive.org/details/301works

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