Series of still photographs on film, projected in rapid succession onto a screen. Motion pictures are filmed with a movie camera, which makes rapid exposures of people or objects in motion, and shown with a movie projector, which reproduces sound synchronized with the images. The principal inventors of motion-picture machines were Thomas Alva Edison in the U.S. and the Lumière brothers in France. Film production was centred in France in the early 20th century, but by 1920 the U.S. had become dominant. As directors and stars moved to Hollywood, movie studios expanded, reaching their zenith in the 1930s and '40s, when they also typically owned extensive theatre chains. Moviemaking was marked by a new internationalism in the 1950s and '60s, which also saw the rise of the independent filmmaker. The sophistication of special effects increased greatly from the 1970s. The U.S. film industry, with its immense technical resources, has continued to dominate the world market to the present day. Seealso Columbia Pictures; MGM; Paramount Communications; RKO; United Artists; Warner Brothers.
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Picture in Picture requires two independent tuners or signal sources to supply the large and the small picture. Two-tuner PiP TVs have a second tuner built in, but a single-tuner PiP TV requires an external signal source, which may be an external tuner, VCR, DVD player, or a cable box with composite video outputs. Picture in Picture is often used to watch one program while waiting for another to start, or advertisements to finish.
Some manufacturers implement picture-in-picture in a very non-traditional manner. For example, and verified with their tech support group, Samsung redefines PiP on their LN-T4042H LCD television as the ability to switch between an analog and a digital source.
In 1980, NEC introduced its "Popvision" television (CV-20T74P) in Japan with a rudimentary picture-aside-picture feature: a separate 6" (15cm) CRT and tuner complemented the set's main 20" (50cm) screen. It was pricey: its ¥298,000 MSRP was equal to about $1,200 (at $1 = ¥250 ), and $1,200 in 1980 had the approximate buying power of $3,000 in 2007
An early consumer implementation of Picture-In-Picture was the Multivision set-top box; it was not a commercial success. Later PiP became available as a feature of advanced television receivers.
The Blu-ray Disc and HD DVD specifications included picture in picture, allowing viewers to see, say, the director's comment on a film they are watching. All of the Blu-ray Disc titles in 2006 and 2007 that had a PiP track used two separate HD encodings with one of the HD encodings including a hard coded PiP track. Starting in 2008 Blu-ray Disc titles started being released that use one HD and one SD video track which can be combined together with a Bonus View or BD-Live player. This method uses a less disc space allowing for PiP to be more easily added to a title. Several studios have released Bonus View PiP Blu-ray Disc titles in 2008 such as Aliens vs. Predator: Requiem, Resident Evil: Extinction, V for Vendetta, and War.
"Identifying Picture Files of a Picture File Storage System Having Relevance to a First File" in Patent Application Approval Process
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