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Television in Japan

Television in Japan is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Television in Japan rather than just read about it. In short: Television in Japan was introduced in 1939. However, experiments date back to the 1920s, with Kenjiro Takayanagi's pioneering experiments in electronic television.

Television in Japan — main illustration
Television in Japan — illustration

Key takeaways

  • Television in Japan belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Television in Japan to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Television in Japan from memory before moving on to harder problems.

Reference excerpt

Television in Japan was introduced in 1939. However, experiments date back to the 1920s, with Kenjiro Takayanagi's pioneering experiments in electronic television. Television broadcasting was halted by World War II, after which regular television broadcasting began in 1950. After Japan developed the first HDTV systems in the 1960s, MUSE/Hi-Vision was introduced in the 1970s. A modified version of the NTSC system for analog signals, called NTSC-J, was used for analog broadcast between 1950 and the early 2010s. Analog broadcasts in Japan was replaced with digital broadcasts using the ISDB standard. ISDB supersedes both the NTSC-J analog television system and the previously used MUSE Hi-vision analog HDTV system in Japan. Digital Terrestrial Television Broadcasting (DTTB) services using ISDB-T (ISDB-T International) started in Japan in December 2003, and since then, Japan adopted ISDB over other digital broadcasting standards. All Japanese households having at least one television set, or any device that is capable of receiving live television broadcasts, are mandated to hold a television license, with funds primarily used to subsidize NHK, the Japanese public service broadcaster. The fee varies from ¥12,276 to ¥21,765 (reduced to ¥10,778 to ¥20,267 for households residing in Okinawa Prefecture) depending on the method and timing of payment, and on whether one receives only terrestrial television or also satellite broadcasts. Households on welfare may be excused from the license fee. Notably, there is no legal authority to impose sanctions or fines in the event of non-payment; people may (and many do) throw away the bills and turn away the occasional bill collector, without consequence.

History

The foundation of NHK and Kenjiro Takayanagi's research

In 1924, Kenjiro Takayanagi began a research program on electronic television. In 1925, he demonstrated a cathode ray tube (CRT) television with thermal electron emission. Television tests were conducted in 1926 using a combined mechanical Nipkow disk and electronic Braun tube system. In 1926, he demonstrated a CRT television with 40-line resolution, the first working example of a fully electronic television receiver. In 1927, he increased the television resolution to 100 lines, which was unrivaled until 1931. In 1928, he was the first to transmit human faces in half-tones on television.

In the same period Takayanagi also turned his interest to television studies after having learned about the new technology in a French magazine. He developed a system similar to that of John Logie Baird, using the Nipkow disk to scan the subject and generate electrical signals. But unlike Baird, Takayanagi took the important step of using a cathode ray tube to display the received signal, successfully reproducing the Katakana character イ in December 1926. In 1928 his research took a further breakthrough, when he managed to reproduce an image of a person with a resolution of 40 lines at a refresh rate of 14 frames per second. In the 1930s Takayanagi and his research team developed a fully electronic television system using a revised version of the iconoscope. This was followed by the invention of a video receiver capable of reproducing images with a resolution of 441 lines at 30 frames per second, the best on the market at the time. After the first broadcasts via radio, which became a reality in the second half of the 1920s, the creation of a central institution for the management of radio broadcasting services that could reach the entire national territory became increasingly urgent. At the behest of the Ministry of Communications the local stations of Tokyo, Osaka and Nagoya were thus merged in 1926 into a single national organization called Nippon Hōsō Kyōkai. Right after its creation, four other stations were created in other regions, namely Hokkaidō, Tōhoku, Chūgoku and Kyūshū, whose first broadcasts took place in November 1928. In 1930 the Nippon Hōsō Kyōkai founded the Science & Technology Research Laboratories (STRL) with the aim of developing a television set in the wake of the inventions of Paul Gottlieb Nipkow and Vladimir Zworykin. Meanwhile in Europe, the first regular test broadcasts were being conducted, with Germany ready to broadcast the imminent Berlin Olympics of 1936. The following year, it was decided that the Games were to be held in Tokyo, and the STRL was put in charge of the event's television project. Takayanagi himself and other leading engineers of the time took part in the program and, although the Olympics were officially canceled in July 1938, television research continued, fueled by the zeal of those involved in the project. On May 13, 1939 an experimental television signal was broadcast from the STRL antenna at the new Broadcasting Hall in Uchisaiwaichō, located 13 km away. This represented the first public television experiment conducted through the use of radio waves in Japan.

The beginning of regular broadcasts and the end of the NHK monopoly The experiments continued until the end of the decade. Existing equipment was improved and new lighting systems were created along with smaller, lighter cameras to capture moving images. An all-electronic system was adopted in the 1930s using a domestically developed iconoscope system. A variety of productions such as films, variety shows, musical shows and TV dramas (such as the family comedy Yūge-mae (Before Supper), the first dorama in history, broadcast live in four episodes over three nights) saw the light, laying the foundations for the development of the television and electronics industry after the Second World War. During the conflict, however, research on television equipment was suspended and electrotechnical companies gave way to the production of weapons, ammunition and other products for war use. Nippon Hōsō Kyōkai itself, which until then had maintained a certain independence from the government, with the increase in military control over the institutions ended up becoming a simple propaganda weapon of the State. For a brief period in the aftermath of Japan's surrender, the occupied government banned television research in 1945, but was lifted in July 1946. Takayanagi joined the Victor Company of Japan to continue research on his own end, while the NHK resumed theirs in November. Takayanagi played a central role in jointly developing television broadcasting technology and television receivers with NHK, Sharp, and Toshiba.

… excerpt ends here. Continue reading the full article.

Illustrations

Television in Japan: A recreation of Kenjiro Takayanagi's pioneering 1926 electronic television experiment, at NHK Broadcasting Museum in Atagoyama, Tokyo
A recreation of Kenjiro Takayanagi's pioneering 1926 electronic television experiment, at NHK Broadcasting Museum in Atagoyama, Tokyo
Television in Japan: Reproduction of a street television set in the 1950s at the Shin-Yokohama Ramen Museum
Reproduction of a street television set in the 1950s at the Shin-Yokohama Ramen Museum
Television in Japan: The Tokyo Tower in 1961
The Tokyo Tower in 1961
Television in Japan: Changes to the television penetration rate in Japan from 1957 to 2015
Changes to the television penetration rate in Japan from 1957 to 2015
Television in Japan: Fuji TV's headquarters in the 1960s
Fuji TV's headquarters in the 1960s

Worked examples

Example 1 — a first encounter with Television in Japan

Start with the simplest possible case. Write down what Television in Japan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Television in Japan before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Television in Japan ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Television in Japan

In research
Television in Japan appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Television in Japan in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Television in Japan is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lists of television channels by country, Television by country, Television in Japan, so understanding it makes those chapters shorter.
In everyday life
Look for Television in Japan outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Television in Japan in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Television in Japan means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Television in Japan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Television in Japan in simple terms?

Television in Japan was introduced in 1939. However, experiments date back to the 1920s, with Kenjiro Takayanagi's pioneering experiments in electronic television.

Why does Television in Japan matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Television in Japan?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Television in Japan.

Tags

  • Lists of television channels by country
  • Television by country
  • Television in Japan

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