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Hi!

I'll show you "Cuphead" here, which I'm playing using my XBOX360 pad. Actually, the game is running on my desktop streamed to my cheap Chinese tablet here with the help of "Parsec".

A software in the sense of nVidia Experience or Steam InHome-Streaming which allows to stream games locally in LAN or via the Internet from a powerful PC to a less powerful machine, like a tablet or smartphone and to play on those.

This works quite latency free, even over the Internet which I tried with friends using my T420 Thinkpad and...

yeah the only thing that's necessary is a good computer.

Doesn't matter if Intel or nVidia graphics

Pardon, I mean with AMD or nVidia graphics

To encode the stream Intel graphics are actually enough and...

Yeah... ehm...

The developers promise it'll be cross-platform.

So you can at least stream it to Linux computers and tablets and smartphones in the future.

And also on Apple computers.

They also offer to process all the games via cloud computers.

That of course respectively costs money, those who have can also use their own computer.

That however requires a fast Internet connection.

and well...

otherwise, it's free of charge

The software only uses the Parsec master servers to connect two computers.

Comparable to TeamViewer.

But it's a lot faster and smoother

what is necessary for gaming

and...

yea, technically you can even use a Raspberry Pi for a client.

Tutorials on how to include it into RetroPie and its counterpart whose name I forgot even exist already.

And yea... I just show you some Cuphead

what is already demanding on speed and reflexes a little

and later on also some Rocket League and Sonic Mania.

And yea... just see for yourself.

Another special feature of Parsec is that you can also for example

that you can invite several friends

who can connect to your computer

and since Parsec is capable of emulating the XBOX controller

you can for example play games that are only playable in local multiplayer

like for example...

okay I can't think of any

but for example multiplayer games that you can play locally on one computer can now played via the Internet against each other.

That's great if you are using emulators

or just older games that still feature a split screen.

Or if friends just don't have a powerful PC but want to play Rocket League or something else for once.

So it's a pretty cool thing.

To my defense let it be mentioned that I couldn't test it with friends yet.

The online multiplayer...

hullabaloo!

That's something I rely on the developers for

and I'm sure there are other videos

that demonstrate it better than I do with my cheap smart phone

and in quote "cheap" smart phone and that poor camera setup

short turn, now we are in Rocket League as you can see

and yea...

I'm playing 1on1 just for demonstration

and...

I'm honestly playing with the 360 controller again

because Rocket League is simply a game made for controllers.

And really, I'm playing this streamed from my desktop

here on the cheap China tablet

pretty much without delay

without issues over WiFi

here at home - 5GHz band - no issues.

I apologize for not hearing anything in the background actually.

It is just...

a telephone's microphone...

and then to record from a tablet

that's not really ideal

but perhaps I try to come up with something.

Just to get this clear from the beginning with the streaming software...

One can stream from Windows.

Clients already exist for Linux, for macOS and for...

Android.

That won't change according to the developers either.

However, a survey was currently up

asking if the developers should start bringing the streaming server to Linux PCs

and

I can not tell if they do it but...

Reception was huge.

It's rather...

does it pay off for developers and that's where they felt unwell themselves.

Something I totally get

because it's more effort that often does not pay out if most people use Windows on their gaming PCs anyway.

If you actually hear something in the background that doesn't resembles the sound of a XBOX360 controller but rather...

babble, that is Rocket Beans TV that just aired on my TV all the time

and which you can also notice in game by my nice flag on the car *laugh*

yea... but last but not least a bit of Sonic Mania.

I think it's a pretty good game or Sonic in general is a nice game to...

test deviation and input delay because

if you have input delay for Sonic

then you can't control this blue fast hedgehog.

You can put the game to the dustbin then.

That's why Parsec and Sonic Mania is actually a good test, I think.

But see for yourself!

The only thing that annoyed me although this has nothing to do with Parsec in particular

but with the video editing

is that...

the video had some A/V problems

during post processing

and the part with Sonic Mania got a little desynchronized.

I had to fix that with the video editor eventually

so it doesn't feels to odd.

But actually the game plays perfect via Parsec

There are no issues

the developers did an amazing job

with this young software

and I can honestly only recommend it that you test it yourself

given you're interested in such things.

That said...

Thank you, Parsec developers and thank you everyone who watched this video!

Until then, bye!

For more infomation >> Parsec: Streaming software like Experience and InHome-Streaming - Duration: 9:15.

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Purple software OPメドレー （アオイトリまで） - Duration: 47:13.

#1 Koi ni Narimasu You ni / Sugisawa Yuka & Nagasaki Tsukuyo & Kaibara Elena & Kawabe Noriko / Happy Breeding

#2 Natsuiro / Shimizu Kozue / Natsuiro Komachi

#3 SUMMER RAINBOW / Honey Bee / Karen

#4 Confession / Hashimoto Miyuki / Majipuri -Wonder Cradle-

#5 Akiiro / Hashimoto Miyuki / Akiiro Renka

#6 Growth / Hashimoto Miyuki / Akiiro Ouka ~Akiiro Renka Fandisc~

#7 L / Hashimoto Miyuki / Alto

#8 Eternal Sky / Hashimoto Miyuki / Primitive Link

#9 Lilith / Rita / Tenshi no Tamago

#10 TIME / Hashimoto Miyuki / Ashita no Kimi to Au Tame ni

#11 Koi Sakura / Hashimoto Miyuki / Haruiro Ouse

#12 ever / Hashimoto Miyuki / Ashita no Nanami to Au Tame ni ~Ashita no Kimi to Au Tame ni~ Fandisc

#13 White Crystal / Hashimoto Miyuki / Memoria

#14 Signal Heart / Rita / Signal Heart

#15 Signal plus / Rita / Signal Heart Plus

#16 Natsukashiki Kioku / Hashimoto Miyuki / Natsu ni Kanaderu Bokura no Uta

#17 Aozora no Yakusoku / Hashimoto Miyuki / Hatsukoi Sacrament

#18 Mirai Nostalgia / Hashimoto Miyuki / Mirai Nostalgia

#19 Tomokoi / Hashimoto Miyuki / Shiawase Kazoku-bu

#20 Yume no Mugen Kairou / Hashimoto Miyuki / Hapymaher

#21 Gensou Roukaku / Hashimoto Miyuki / Hapymaher -Fragmentation Dream-

#22 5-fun Mae no Koigokoro / Hashimoto Miyuki / Chrono Clock

#23 Kokoro ni Hibiku Koi Hotaru / Hashimoto Miyuki / Amatsutsumi

#24 Aoi Tori / Hashimoto Miyuki / Aoi Tori

For more infomation >> Purple software OPメドレー （アオイトリまで） - Duration: 47:13.

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IEEE 802.11ax: Overcoming Design and Test Challenges with 89600 VSA Software - Duration: 7:40.

Hello and welcome to how to overcome key 802.11ax transmitter design and test challenges with

Keysight's 89600 VSA software.

802.11ax introduces various new technologies and features to meet its goal of high efficiency,

capacity and coverage for a better user experience, especially for dense deployments.

The key technologies and features include multi-user transmission using OFDMA and multi-user

(MU)-MIMO in both uplink and downlink, narrow sub carrier spacing, and 1024QAM modulation.

All of these increase design complexities and create a number of new test challenges.

Let's take a look at these new challenges.

In the downlink multi-user transmission, the access point needs to serve multiple users

simultaneously and often times each user will have different channel configurations including

different modulation formats as well as spatial streams.

The standard also calls for the EVM to be computed for each transmitted resource unit separately.

When testing, you want to verify the packets for the different users are scheduled and

transmitted correctly, and the EVM for each resource unit is computed correctly and it

meets the EVM requirements.

In the uplink multi-user transmission, also called trigger-based, each user is assigned

a single resource unit by an access point and multiple users transmit simultaneously.

To prevent interference, the packet transmission from each station must start and end at the

same time and they must remain synchronized.

The other major challenge is emissions into a non-allocated resource units.

When transmitting in the uplink, each user must only occupy the resource unit they are assigned to, and

interference level outside of the transmitted resource unit, which is used by other stations,

must be minimized.

As a result, a new unused tone EVM or in-band emissions requirement is defined for the uplink.

For 1024QAM, the specification calls for 3 dB stricter EVM, and with higher order modulation,

the spacing between the constellation points become much smaller making the system more

sensitive to impairments.

So, it requires lower phase noise and higher amplifier linearity performance for the transceiver

as well as test equipment.

The narrow subcarrier spacing makes the system more sensitive to frequency offset, phase

noise and sampling clock offset.

This requires local oscillators with improved phase noise performance than needed for legacy

WLAN.

The last challenge I want to bring up is modeling the RF channels.

Outdoor channels experience larger delay spreads and more time variations; therefore, different

channel models are used for indoor and outdoor operation.

The Keysight SystemVue Electronic System Level (ESL) platform provides transmit and receive

reference models connected with either an indoor or outdoor wireless channel models

to enable full link-level EVM or throughput type analysis.

You can also simulate the effect of different impairments on the system.

The simulated waveform then can be downloaded to a signal generator to create the test signal and a

signal analyzer with 89600 VSA software can be used for analysis.

You can also link to the 89600 VSA software within the simulation environment and this

allows for simulated versus measured results comparison by using the same VSA measurement

algorithm both in simulation and test.

Let's take a look at two quick examples using the 89600 VSA software.

Starting with 160 MHz wide downlink OFDMA transmission.

The HE-SIG-B field contains resource unit allocations as well as user specific information.

The 89600 VSA decodes HE-SIG-B field and demodulates the multiple resource units simultaneously.

The main goal is to test the access point transmitter to verify the resource unit allocations

are accurate and evaluate the signal quality and perform error vector measurements of each

resource units separately.

The "Multi-User Info" table is a result of what is contained within the HE-SIG-B field.

So you can see all the scheduled resource units, MCS for each one of them, and other

information such as if spatial streams is used or not.

EVM is computed for each resource unit separately; and in this case, some of the resource units

are using 1024QAM and the rest are using 256QAM.

You can also see that in the constellation diagram.

By looking at the EVM results, you can see a big margin in the EVM performance over the

-35 dB limit for the 1024QAM.

The VSA with its in-depth analysis and troubleshooting capabilities helps you identify causes of EVM.

When you look at the "Error Summary" for example, you can see if there are any imperfections

in the IQ modulator and the software also allows you to compensate for some of those

impairments if needed.

You can compensate for IQ mismatch or compensate for sampling clock error.

All the default settings for the EVM measurement are based on the IEEE standard requirements.

Channel estimation or the equalizer training is based on the preamble only.

If I include the data subcarriers as part of the equalization filter, you can see that

I gain about a 3 dB better EVM performance.

All of the measurements that are available for legacy WLAN such as EVM versus subcarrier

and EVM versus symbols are also available for 802.11ax to help you troubleshoot any

design issues.

Let's move on to a quick uplink demo using a trigger based PPDU in an 80 MHz wide channel.

In the uplink, a user is assigned a single resource unit; and in this case, the resource

unit size is 242 tones and the rest of the 80 MHz channel is occupied by other stations.

Therefore, the interference level outside of the transmitted resource unit, must be

kept at a minimum.

The "Resource Unit Info" table provides EVM of the transmitted resource unit; and in this

case, it is resource unit #1 with size of 242 tones.

It also provides the EVM for the unused tones.

The unused tone EVM is computed separately and it is averaged over each 26 subcarriers

of the unassigned resource units.

In addition, the VSA added a new trace called in-band emissions.

The trace has three plots.

The green plot is the average power over each subcarrier.

The yellow is the unused Tone EVM and the red is the limit defined in the standard.

These correspond to "Unused Tone EVM" and the "Limit" columns in the "Resource Unit Info" table.

This allows you to easily evaluate the uplink signal quality and perform error vector measurements

of both the used and unused tone resource units.

In summary, the 89600 VSA software provides a comprehensive set of tools for demodulation

and vector signal analysis.

These tools enable you to view and troubleshoot 802.11ax chipsets and devices regardless of

the operating modes implemented.

To learn more, and to download a free trial, visit us at these websites.

For more infomation >> IEEE 802.11ax: Overcoming Design and Test Challenges with 89600 VSA Software - Duration: 7:40.

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2.2 Screen Layout of GT Designer3 － Screen Design Software〈Your First GOT (5/14)〉 - Duration: 2:25.

Now let's get acquainted with the GT designer three screen that we opened at the end of the last section the

Software named project name and file name appear in the title bar

Operations can be performed through the pulldown menus in the menu bar

the toolbar contains buttons used to perform common operations

The toolbar can be moved around the screen

Tabs of screen editors or windows displayed in the work window appear in the editor tab

The screen editor

Environmental setting window G ot setup window and so on appear in the work window

The screen editor is used to create the screens displayed by G OTS by arranging figures and objects

The status bar displays information in accordance with the mouse cursor

position and selection status of figures and objects

Ok let's go over the kinds of screens that you can create with GT designer 3

The first type of screen I should mention is the base screen this is the fundamental G ot screen?

Many different kinds of base screen pages can be created as shown by these examples

In addition to the base screen there are other screens that provide different functionality

Overlap windows that appear as a pop up over the base screen key windows used for numerical input

Dialog windows that appear on top of all other windows and are used to display errors and warnings

Combinations of these windows are used to design user friendly screen for geo teas in

The next chapter we will use GT designer 3 to create screens

For more infomation >> 2.2 Screen Layout of GT Designer3 － Screen Design Software〈Your First GOT (5/14)〉 - Duration: 2:25.

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2.1 System Setting of GT Designer3 － Screen Design Software〈Your First GOT (4/14)〉 - Duration: 4:45.

Now I will introduce some of the devices required to operate GOTs.

You will need a GOT, a USB cable, a PLC,

an Ethernet cable, a personal computer, and programming software.

A MELSEC iQ-R series Mitsubishi Electric PLC is used in this training.

Both the GOT software and PLC software will be necessary.

The GOT software is the GT Works3 screen design software suite.

The PLC software is the GX Works3 engineering software.

A MELSEC Q series Mitsubishi Electric PLC

can also be used to operate GOTs.

Use the GX Works2 PLC engineering software if using a Q series PLC.

GT Works3 is a software suite that contains the GT Designer3 software

used to create GOT1000 and GOT2000 series screens.

This software can also be used to transfer data

and load data from GOTs and run simulations.

GOT2000 screens will be created in this training, and so

the GOT2000 version of GT Designer3 will be used in the explanations.

OK, now we will start GT Designer3 and create new screen data.

Screen data is called a project.

Click [New] in the Select Project dialog box.

Click [Next] on the start screen of the New Project Wizard.

Check the settings on the system setting window.

Select GOT2000 as the Series.

Select GT27V as the GOT Type.

Configure the other settings as shown on the screen.

After you have confirmed the settings, click [Next].

Click [Next].

From the [Controller Type] drop-down menu

on the communication settings window, select [MELSEC iQ-R, RnMT]

as this is the device we will be using.

Click [Next].

From the [Interface], or [I/F], drop-down menu,

select [Standard I/F(Ethernet):Multi].

Click [Next].

Make sure that [Ethernet(MELSEC), Q17nNC, CRnD-700, Gateway]

is selected as the Communication Driver.

Click [Detail Setting].

Once the detail setting pop-up screen appears,

change the [GOT Station] to 2 and then click [OK].

Click [Next].

After you have confirmed the settings, click [Next].

Check the screen switching device settings.

Make sure [GD100] is selected as the Base Screen.

Click [Next].

After confirming the settings configured with the wizard,

click [Finish].

The GT Designer3 editing screen now appears.