science

Sony HDVS

Sony HDVS 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 Sony HDVS rather than just read about it. In short: Sony HDVS (High-Definition Video System) is a range of high-definition video equipment developed in the 1980s to support the Japanese Hi-Vision standard, an early analog high-definition television system. The range included professional video cameras, video monitors and linear video editing systems.

Key takeaways

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

Reference excerpt

Sony HDVS (High-Definition Video System) is a range of high-definition video equipment developed in the 1980s to support the Japanese Hi-Vision standard, an early analog high-definition television system. The range included professional video cameras, video monitors and linear video editing systems.

History Sony first demonstrated a wideband analog video HDTV capable video camera, monitor and video tape recorder (VTR) in April 1981 at an international meeting of television engineers in Algiers, Algeria. The HDVS range was launched in April 1984, with the HDC-100 camera, which was the world's first commercially available HDTV camera and HDV-1000 video recorder, with its companion HDT-1000 processor/TBC, and HDS-1000 video switcher all working in the 1125-line component video format with interlaced video and a 5:3 aspect ratio. The first system consisting of a monitor, camera and VTR was sold by Sony in 1985 for $1.5 million, and the first HDTV production studio, Captain Video, was opened in Paris. The helical scan VTR (the HDV-100) used magnetic tape similar to 1" type C videotape for analog recording. Sony in 1988 unveiled a new HDVS digital line, including a reel-to-reel digital recording VTR (the HDD-1000) that used digital signals between the machines for dubbing but the primary I/O remained analog signals. The Sony HDVS HDC-300 camera was also introduced. The large HDD-1000 unit was housed in a 1-inch reel-to-reel transport, and because of the high tape speed needed, had a limit of 1-hour per reel. By this time, the aspect ratio of the system had been changed to 16:9. Sony, owner of Columbia Pictures/Tri-Star, would start to archive feature films on this format, requiring an average of two reels per movie. There was also a portable videocassette recorder (the HDV-10) for the HDVS system, using the "UniHi" format of videocassette using 1/2" wide tape. The tape housing is similar in appearance to Sony's D1/D2 Standard Definition Digital VTRs, but recorded analog HD. The small cassette size limited recording time to about 63 min. The price of the HDD-1000 and its required companion HDDP-1000 video processor in 1988 was US$600,000. The metal evaporate tape (tape whose magnetic material was evaporated and deposited onto the tape in a vacuum chamber using physical vapor deposition) cost US$2500.00 per hour of tape and each reel weighed nearly 10 pounds. The high price of the system limited its adoption severely, selling just several dozen systems and making its adoption largely limited to medical, aerospace engineering, and animation applications. In 1986, HDVS systems cost $1.5 million, and 30-40 were sold until then. Sony HDVS systems made video with a total of 1125 (horizontal) lines, and 1035 active lines of resolution. The Sony HDL-5800 had a price of over 56,000 US dollars

Uses The Sony HDVS system was used in the production of a short film about Halley's Comet in 1986, titled "Arrival", which was shown in US theatres later that year after being transferred to 35mm film. The first drama film shot using the HDVS professional video camera was RAI's Julia and Julia (Italian: Giulia e Giulia) in 1987, and the first HDTV television show was CBC's Chasing Rainbows, shot using the HDVS system in 1988. For the Genesis Invisible Touch Tour shows at Wembley Stadium in July 1987, the Sony HDVS system was used to film these shows, which were later released on VHS and LaserDisc in 1988 and DVD in 2003. Montreux Jazz Festival in 1991 was recorded using the Sony HDVS video system. Four HDC-300 cameras in 1125-line format (1035i visible, close to 1080i today), 60 fps, and one Sony HDC-500 3 CCD prototype HDVS camera were used. The five cameras were connected to a 7-input HDS-1000T switcher and the live mix was recorded to an HDD-1000 Digital 1" VTR. World War II: When Lions Roared (also known as Then There Were Giants) is a 1994 TV movie, directed by Joseph Sargent, that stars John Lithgow, Michael Caine and Bob Hoskins as the three major Allied leaders. It was the first video production to be produced in the 1125-line high-definition television (HDTV) format. It was converted to NTSC for broadcast in the United States. The HDVS brand and logo was still used by Sony since 1997 as "Digital HDVS" on their digital high-definition HDCAM-format cameras such as the HDW-750, HDW-F900, HDC-1550, "Power HAD" camera Sony HSC-300 Series, and XDCAM camera PDW-850, PXW-X500. By 2022, HDVS branded cameras have been discontinued and new camera models released don't have the HDVS logo.

Equipment

References

External links Sony corp history page Sony corp history page 2 Sony copy history page 3

Illustrations

Worked examples

Example 1 — a first encounter with Sony HDVS

Start with the simplest possible case. Write down what Sony HDVS 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 Sony HDVS 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 Sony HDVS 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 Sony HDVS

In research: Sony HDVS 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 Sony HDVS 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: Sony HDVS is common in secondary-school and first-year university syllabi. It links to neighbouring topics Audiovisual introductions in 1984, Hi-Vision, High-definition television, so understanding it makes those chapters shorter.
In everyday life: Look for Sony HDVS 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 Sony HDVS in 20 minutes

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

Frequently asked questions

What is Sony HDVS in simple terms?

Why does Sony HDVS 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 Sony HDVS?

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 Sony HDVS.