Development

The theme of this week is about the development of television sets. Main points are analog broadcasting, digital broadcasting and 3D television.

 

1.    Analog broadcasting

The feature is the television broadcasting by analog representation. A kind has “ground analog broadcasting” and “analog satellite broadcasting.”

Ground analog broadcasting is broadcast by the electric wave from a television tower etc. The black and white broadcast was started by the analog terrestrial wave from 1953. The color broadcast was started by the analog terrestrial wave from 1960. Analog broadcasting was ended in the whole country of Japan in 2012.

Analog satellite broadcasting has two kinds, BS analog broadcasting and CS analog broad casting. BS analog broadcasting is broadcast using a broadcasting satellite and CS analog broadcasting is broadcast using a communications satellite. The full-service broadcasting of BS analog broadcasting was started from 1989. NHK and WOWOW were broadcasting. CS analog broadcasting was started from1992. It almost changed to the digital now. BS analog broadcasting was ended in the whole country of Japan in 2012. A broadcast was started in major metropolitan areas (Tokyo, Nagoya, and Osaka) in December, 2003. Receivable area was expanded to the whole country of Japan.

 

2.    Digital broadcasting

The feature is the television broadcasting by digital representation. A kind had “group digital broadcasting” and “digital satellite broadcasting.”

Ground digital broadcasting is broadcast by electric wave from a television tower etc. Digital satellite broadcasting has three kind, BS digital broadcasting, CS digital broadcasting, and CS110° digital broadcasting. BS digital broadcasting is broadcast using a broadcasting satellite, CS digital broadcasting is broadcast using a communications satellite and CS110° digital broadcasting is broadcast using the communications satellite launched to east longitude of 110 degrees the same BS. BS digital broadcasting began from December, 2000. CS digital broadcasting was started in 1966. Sky perfect TV! etc. are broadcasting. CS110° digital broadcasting began from March, 2002. EZ by Sky Perfect! is broadcasting.

 

3.    3D television

3D television is the television which can see a three-dimensional image. However, when you watch 3D television, you have to ware exclusive glasses. An image looks three-dimensional when you wear exclusive glasses. 3D television will give people the further pleasure. However, I think that 3D television does not spread easily. It is because the price is high compared with ordinary television set and when saying whether it is required, it is not required. If here is 3D television, we will think that television can be enjoyed more, but it will be said that almost all persons are not troubled even if there is no 3D television.

 

4.    Comment

When it changed from the analog broadcasting to digital broadcasting, I thought the image of digital broadcasting is more beautiful than image of analog broadcasting. Moreover, I thought that digital broadcasting was broadcast later than analog broadcasting.

I am interested in 3D television. It is because it thinks it wonderful that an image looks three-dimensional. Is this illusion of eyes? A 3D image is very interesting. I would like to come to hold, when an image jumps out of display. I want 3D television in my house someday.