The secret of Panasonic "Layout Free TV", which is a 4K TV but a free place.Is it okay to interfere with others?

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43インチ4Kのレイアウトフリーテレビ TH-43LF1。左のチューナー部にアンテナをつなぐとテレビ映像がモニターに無線で伝送される

"Layout-free TV TH-43LF1" released by Panasonic in October is a LCD TV with no need to connect a long antenna cable from the wall, as the name suggests.The company's portable TV "Private Viera" is a popular HD TV with a 10/15 inch and non -waterproof 19 -inch model with a compact waterproof specification, but this time it is a great 43 -inch 4K TV.

If you are looking at the video distribution such as YouTube, you can feel the network of the house when you look at a higher image quality and a large amount of data, as you can feel.If you look at a 4K video with a few smartphones, some families may not be able to stand the video.

In recent years, Bluetooth earphones are looking at online distribution images, so Bluetooth connection may be unstable (because the radio waves used by Wi-Fi and Bluetooth are covered).

There are countless IoT home appliances that use Wi-Fi on Bluetooth on a smartphone of the family, and many radio waves fly in the house.Can I transmit 4K images and be able to watch TV smoothly? This question is probably the most interested in Wi-Fi.

This time, I would like to introduce the content of the Panasonic engineer for the technology focused on "4K video transmission" instead of the layout -free TV review.

Layout -free TV's easiest connection and communication method

レイアウトフリーテレビのモニター部分

You may think that wireless connection is complicated, but the initial settings at home are easy.When the power is turned on for the first time, the tuner and the monitor are paired (striped), and the images are transmitted wirelessly from the tuner to the monitor as shown in the following figure.

パソコンやゲーム機などの機器をつなぐ場合は、モニターにあるHDMI端子に接続する

The antenna wire from the wall is not connected to the monitor itself, but is connected to a lunch box -sized tuner.When you watch the TV, the tuner receives the BS and terrestrial radio waves and flies the video signal to the monitor side wirelessly.So the monitor just connects to the power outlet, and you can watch TV programs without connecting the antenna wire.

チューナー部とリモコンレイアウトフリーテレビのモニター側コンセントは、湯沸しポットと同様の磁石でくっ付くコンセントが付属されている。もしコードに足を引っ掛けても、すぐにコンセントが外れるので安全モニター部分の背面もスッキリ

Also, when the TV is operated with a remote control, the control signal is transmitted wirelessly from the monitor to the tuner.Layout -free TVs perform video transmissions between the tuner and monitor only for programs recorded on TV programs and tuner parts.

If you watch net videos, connect the monitor to the Wi-Fi access point in addition to the string when the power is turned on for the first time.This means that the TV program is wirelessly transmitted from the tuner, and the internet content moves like a large smartphone.

Equipped with a special antenna, a beautiful 4K video can be played over the floor

Regarding how much wireless transmission can be transmitted, it depends considerably to the floor plan, material, and the performance of the wi-Fi master unit, but one indicator of the Panasonic website shows the demonstration experiment.

Because it is a 43 -inch large monitor, it seems that it rarely travels across the floor, but it seems that it can be viewed without any problems on the same floor.The result is that it can be played beautifully even if the floor is different.

同一階での受信状態。Aのチューナー部と同じ部屋にあるときにキレイに映るのはもちろん、壁越しの3でも良好な受信状態。また5GHzのWi-Fiは壁やドアの遮蔽物に弱いが、少なくても壁を2枚越した先にある2でも良好こちらは階をまたぐ場合。こちらは壁が少ないので同一フロア内はまず問題ないだろう下の階のチューナー部から一番遠い1でも高画質の映像が映せる。もちろん2でも良好という

The house used for the experiment was a lightweight steel frame, the flooring was ALC material (foam concrete), and the wall was a general gypsum board.In the case of concrete (not foaming) like an apartment, it is harder to enter than the experimental results, and in wooden houses such as 2x4 (two -by -four), it will be better than the experimental results.

Various construction is possible according to the radio wave conditions

Basically, between the tuner part and the monitor, the 5GHz band Wi-Fi with a fast transmission speed is used, and between the tuner and the monitor, communicate directly without going through the Wi-Fi access point.。Therefore, it seems that traffic (data amount) concentration of access points can be avoided even if used in combination with other smartphones.Also used by Bluetooth 2.There is no problem that Bluetooth earphones are difficult to connect because they do not wear 4GHz.Also, if you use it at 5GHz, you will not receive a radio wave failure when using a microwave oven.

Bluetoothの電波はWi-Fiと同じ2.4GHz帯を利用している。また電子レンジは2.4GHzに近い2.1GHzの電波を使うので、2.4GHzのWi-Fiに電波障害が起きやすい。5GHz帯は2.4GHz帯から大きく離れているので障害を受けない(出典：総務省「電波製作について 2021年9月」)

If 5GHz is not overlapped between rooms due to floor plan and wall materials, 2.You can use it by switching to 4GHz.Furthermore, Wi-Fi communication is directly communicated directly between the tuner and the monitor, but the settings can be passed through the access point.

The monitor and the tuner part antenna are tuned to secure more stable communication, so it would be better to connect the tuner and the monitor directly than to go through the access point on the way.Nevertheless, it is good to go through the access point as an alternative when the direct Wi-Fi communication is unstable, such as the tuner part and the monitor part are separated.

ネットサービスを利用する場合推奨する構成。チューナー部は有線でブロードバンドルーターと接続。チューナー部とモニターはWi-Fi(5GHz)で通信。モニター内蔵のNetflixやYouTubeのアプリはWi-Fiルーターと通信するWi-Fiの電波状態が悪い場合は、モニター部とチューナー部をそれぞれWi-Fiルーターに接続し、アクセスポイント経由で通信することも可能。ただしテレビ視聴時は3→2→1への通信が通常の接続時と比べて増えるので2のアクセスポイント(Wi-Fi)を経由するコンテンツが遅くなる場合もあるチューナー部には有線LANのポートもある。USBポートは写真や動画のバックアップ用HDDの増設用。HDMIはチューナー部の詳細な設定をする場合に使用する出力専用で、ここにブルーレイレコーダーのHDMIを入力することはできない

The tuner part has a wired Ethernet port (10BASE-100TX), so connect the Wi-Fi router and the tuner part with a wired LAN, and communicate between the tuner and the monitor wirelessly.Wide.

The convenient function of the Panasonic Blu -ray recorder DIGA (Diga) series "" Room Jump Link Function "to watch programs recorded in DIGA in another room.At this time, it will be communication between the monitor and DIGA without going through the tuner section.Also, when using Netflix, YouTube, or DLNA (watching PC videos via a network), do not go through the tuner.

家庭のネットワーク上に接続されているパナソニックのレコーダー「DIGA」(お部屋ジャンプリンク機能)やWindows Media ServerのようなDLNAサーバーがある場合もネットワークを経由してモニターのメディアプレイヤーアプリで再生可能

If you want to reflect the video of a game console or a personal computer on the monitor, connect to the monitor HDMI port (only one, one of which is ARC compatible).The tuner part also has an HDMI port, but this is dedicated to the output and is used when making detailed settings for the tuner part.

パソコンやゲーム機を接続するときは、モニター部にあるHDMIに接続する。USBには、映像や画像などを保存したUSBを差し込むと再生が可能。その下の丸いコネクタはヘッドフォン出力

When the network is crowded, compress the data to avoid congestion!

What is worrisome about the wireless transmission of the video is the smoothness of the video.Even if the movement of HD images such as Miracast (mirroring) moves intensely, the image is rough and the image is rough, but the 4K video for four HD images looks smooth and detailed.

This is the technology to become a layout -free TV.To put it simply, the radio wave status and the congestion of the LAN are grasped between the monitor and the tuner, and if the radio wave condition is not crowded, wirelessly transmit it to the monitor with the image quality of the received broadcast.If you are using a Blu -ray or an HDD recorder, it would be easier to transmit it with "DR mode" image quality.

ネットワークが混雑していない場合は放送そのものの画質DRモードでチューナー部→モニターへ伝送する。ネットワークが混雑するとチューナー部でデータを圧縮してモニターに伝送する※圧縮する倍率は例であり、実際の動作とは異なる

Conversely, when the radio wave condition is poor and the network begins to be crowded, the 4K video with the data is generated wirelessly.You may think, "If you thin out the data, it won't be a 4K video?"However, taking the previous recorder as an example, "HG", "HX", "HE", "HL" and "1.By compressing video data and transmitting it to the monitor, such as 5 times, 2 times, 3 times, and 5 times, the network congestion is avoided.

Although the image quality is slightly reduced compared to DR mode, there will be few people who can distinguish them, except for those who are familiar with video.I actually got a demonstration with a 4K video, but it was about to say, "If you say, maybe your hair is a bit blurred?"

Only the video of the broadcast data is compressed in real time, so data broadcasting and voting are also OK!

When the data is compressed, many people may think that voting in data broadcasting or not being able to see the back data broadcast.

However, the great thing about Panasonic is the great thing.Digital data on the TV broadcast is "TS" (Transport Stream), which is lined up in one row, including data broadcasting, copyright management signals, and time information in addition to video and audio data.It is.

チューナー部はリアルタイムで放送データ(TS)の映像データのみを取り出し、圧縮し、トランスポートストリームを再構成する。モニターから見ると放送データそのものなのでデータ放送やカラーボタンの投票などが可能となる※実際のフォーマットと異なる

Layout -free TVs have disassembled this transport stream once, removes only video data, compresses them in the previous compression mode, reconstructed the transport stream again, and sent them to the monitor.

Therefore, since data broadcasting is the same, even if it is compressed, you can watch data broadcasting and real -time voting with a color button.In addition, the degree of compression reflects the congestion of the network on the spot, so if you watch HD content with a number of smartphones with a nasty, increase the compression rate of the image each time it is crowded each time.It is.

コラム：実はデータ放送にも高画質化のこだわりが

Up to this point, it has been shed down to simplify the story, but in fact, the data broadcast is also set up Panasonic's unique Karakuri.I was wondering if I could make it so far, but I got Panasonic's permission, so let's explain that commitment.

放送波のデータ圧縮は映像データの圧縮再構成に加え、データ放送の情報を抜いてチューナー側に蓄積。リモコンでデータ放送ボタンを押したときだけ、チューナーに蓄積された最新のデータ放送の情報がテレビに送られる。スッゴイこだわり……

The data broadcast information often repeats the same data, and the data is always transmitted to a TV.Therefore, in order to improve the image quality by increasing the number of video information even a little, only the data broadcast information (packet) is extracted from the transport stream, and the latest data is accumulated in the internal memory of the tuner part.

So, when a request comes from the monitor (remote control) again, the data broadcast information is transmitted to the monitor for the first time.

In addition, it can be played from DLNA DMS, such as a server that distributes videos on the network (for example, DIGA with a room jump link function or Windows Media media server).

You can also play images written in media such as USB memory.Although it may be a function that is rarely used in general families, it seems that many people who are searching for the Internet and have noticed this article are using it.Details such as formats are guided on 162-163 pages of the "Operation Guide" from the instruction manual download page.

I want this! Layout -free TV for expert like

A layout -free TV that I fell in love with at first sight, using Windows Media Server at home, as well as the room jump link function.At first glance, it can only be seen as a TV that can be brought to various places.However, if you know the contents well, it is a "network TV" that is a transcendental expert.

For that reason, this time it is unnecessary information for the general public, but I explained only the "Tsuu favorite function" that I do not understand unless I read the online manual of the same product with 381 pages with 381 pages.Nevertheless, I had a part that I couldn't understand, so this time I visited Panasonic in Osaka and exclusively interviewed.

It's a biased article, but what I wanted to know so far is my hobby.I think that the people of Tsu will definitely like it, and I will definitely want a layout -free TV.