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HD DVD
HD DVD (short for High Density Digital Versatile Disc) is an obsolete high-density optical disc format for storing data and playback of high-definition video.Alternative Uses for your soon to be obsolete HD-DVD Player . Retrieved September 18, 2019.Format Wars Retrieved September 18, 2019.HD DVD owners 'anger' over obsolete players Retrieved September 18, 2019. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Blue High-definition Disc
China Blue High-Definition (CBHD; ; alternatively "China High Definition DVD") is a high definition optical disc format announced in September 2007 by the Optical Memory National Engineering Research Center (OMNERC) of Tsinghua University in China. The format is a derivative of the HD DVD, a medium created by the DVD Forum designed to succeed regular DVDs. Although HD DVD was scrapped as a result of losing the format war to Blu-ray, CBHDs continued to be produced and marketed, though only in China. History Originally called CH-DVD, CBHD was developed by a joint venture between the DVD Forum and OMNERC. Development began in 2005, and an early prototype was demonstrated in 2007. In 2008, during the DVD Forum's 42nd Steering Committee Meeting, the DVD Forum gave OMNERC the permission to edit HD DVD specifications. Though HD DVD proponents had hoped that CBHD would be a viable successor to the HD DVD format, the CBHD spec was ultimately incompatible with HD DVD players despi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-definition Optical Disc Format War
The high-definition optical disc format war was a market competition between two optical disc standards for distributing high-definition video: Blu-ray Disc, backed by Sony, and HD DVD, backed by Toshiba. The conflict lasted from 2006 to 2008 and concluded with Blu-ray emerging as the dominant format. Both formats were developed in the early 2000s as successors to the DVD, utilizing blue laser technology to increase data storage capacity. Although they employed similar technology, Blu-ray offered higher capacity, while HD DVD benefited from lower manufacturing costs due to its compatibility with existing DVD production infrastructure. The competition echoed the earlier earlier videotape format war between VHS and Betamax, with hardware manufacturers, movie studios, and retailers divided in their support. Consumer hesitation over which format would prevail contributed to sluggish adoption of both. Blu-ray's eventual dominance was tempered by the rise of digital streaming servi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Videotape Format War
The videotape format war was a period of competition or " format war" of incompatible models of consumer-level analog video videocassette and video cassette recorders (VCR) in the late 1970s and the 1980s, mainly involving the Betamax and VHS (Video Home System) formats. VHS ultimately emerged as the preeminent format. History Sony had demonstrated a prototype videotape recording system it called "Beta" to the other electronics manufacturers in 1974, and expected that they would back a single format for the good of all. But JVC in particular decided to go with its own format. Manufacturers also introduced other systems such as needle-based, record-style discs (RCA's Capacitance Electronic Disc, JVC's Video High Density disc) and optical discs (Philips/MCA/Pioneer's LaserDisc). None of these disc formats gained much ground as none was capable of home recording; however, they did hold small niche markets. Some sources say that VHS won over Betamax due to the greater avai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanyo
is a former Japanese electronics manufacturer founded in 1947 by Toshio Iue, the brother-in-law of Kōnosuke Matsushita, the founder of Matsushita Electric Industrial, now known as Panasonic. Iue left Matsushita Electric to start his own business, acquiring some of its equipment to produce bicycle generator lamps. In 1950, the company was established. Sanyo began to diversify in the 1960s, having launched Japan's first spray-type washing machine in 1953. In the 2000s, it was known as one of the 3S along with Sony and Sharp. Sanyo also focused on solar cell and lithium battery businesses. In 1992, it developed the world's first hybrid solar cell, and in 2002, it had a 41% share of the global lithium-ion battery market. In its heyday in 2003, Sanyo had sales of about ¥2.5 trillion. However, it fell into a financial crisis as a result of its huge investment in the semiconductor business. In 2009, Sanyo was acquired by Panasonic, and in 2011, it was fully consolidated into Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caddy (hardware)
In computer hardware, a caddy is a container used to protect an optical media disc from damage when handling. Its functionality is similar to that of the 3.5" floppy disk's jacket. Its use dates back to at least the Capacitance Electronic Disc in 1981, and they were also used in initial versions of the Blu-ray Disc. As a cost-saving measure, newer versions use hard-coating technology to prevent scratches and do not need a caddy. Caddies may be an integral part of the medium, as in some DVD-RAM discs, or separately attached. Examples Caddies date at least to the Capacitance Electronic Disc, which used a caddy from 1981 to protect the grooves of the disc. Some early CD-ROM drives used a mechanism where CDs had to be inserted into special cartridges, somewhat similar in appearance to a jewel case. Although the idea behind this—a tougher plastic shell to protect the disc from damage—was sound, it did not gain wide acceptance among disc manufacturers. Consumers also esche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blu-ray Disc Association
Blu-ray Disc Association (BDA) is the industry consortium that develops and licenses Blu-ray technology and is responsible for establishing format standards and promoting business opportunities for Blu-ray Disc. The BDA is divided into three levels of membership: the board of directors, contributors, and general members. The "Blu-ray Disc founder group" was started on 20 May 2002 by nine electronic companies: Panasonic, Pioneer, Philips, Thomson, LG Electronics, Hitachi, Sharp, Samsung Electronics and Sony. In order to enable more companies to participate, it announced in May 2004 that it would form the Blu-ray Disc Association, which was inaugurated on 4 October 2004. Members Board The board members as of November 2016 are: * Sony * Xperi * DTS * Hitachi-LG Data Storage * Intel Corporation * Koninklijke Philips * LG Electronics * Lionsgate * Mitsubishi Electric * Oracle Corporation * Panasonic * Pioneer Corporation * Samsung Electronics * Sharp Corporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra Density Optical
Ultra Density Optical (UDO) is an optical disc format designed for high-density storage of high-definition video and data. The format was introduced by Sony to replace the Magneto-optical disc format. Overview An Ultra Density Optical disc, or UDO, is a 133.35 mm (5.25") ISO cartridge optical disc which can store up to 30 GB (gigabytes) of data. The second generation UDO2 media format was introduced in April 2007 and has a capacity of up to 80 GB. It utilizes a design based on the Magneto-optical disc, but uses Phase Change technology combined with a blue violet laser. A UDO/UDO2 disc that can store substantially more data than a magneto-optical (MO) disc. This is due to the shorter wavelength (405 nm) of the blue-violet laser employed. MOs use a 650 nm-wavelength red laser. Because its beam width is shorter when burning to a disc than a red-laser for MO, a blue-violet laser allows more information to be stored digitally in the same amount of space. Current generations of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diode
A diode is a two-Terminal (electronics), terminal electronic component that conducts electric current primarily in One-way traffic, one direction (asymmetric electrical conductance, conductance). It has low (ideally zero) Electrical resistance and conductance, resistance in one direction and high (ideally infinite) resistance in the other. A semiconductor diode, the most commonly used type today, is a Crystallinity, crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. It has an Exponential function, exponential current–voltage characteristic. Semiconductor diodes were the first Semiconductor device, semiconductor electronic devices. The discovery of asymmetric electrical conduction across the contact between a Crystal, crystalline mineral and a metal was made by German physicist Ferdinand Braun in 1874. Today, most diodes are made of silicon, but other semiconducting materials such as gallium arsenide and germanium are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuji Nakamura
is a Japanese electronic engineer, inventor of the blue LED, a major breakthrough in lighting technology, and recipient of the Nobel Prize in Physics in 2014. Nakamura specializes in the field of semiconductor technology, and he is a professor of materials science at the College of Engineering of the University of California, Santa Barbara (UCSB). Together with Isamu Akasaki and Hiroshi Amano, Nakamura received the 2014 Nobel Prize for Physics "for the invention of efficient blue light-emitting diodes, which has enabled bright and energy-saving white light sources". In 2015, his input into the commercialization and development of energy-efficient white LED lighting technology was recognized by the Global Energy Prize. In 2021, Nakamura, along with Akasaki, Nick Holonyak, M. George Craford, and Russell D. Dupuis, were awarded the Queen Elizabeth Prize for Engineering "for the creation and development of LED lighting, which forms the basis of all solid-state lighting tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HDCAM
HDCAM is a high-definition video digital recording videocassette version of Digital Betacam introduced in 1997 that uses an 8-bit discrete cosine transform (DCT) compressed 3:1:1 recording, in 1080i-compatible down-sampled resolution of 1440×1080, and adding 24p and 23.976 progressive segmented frame (PsF) modes to later models. The HDCAM codec uses rectangular pixels and as such the recorded 1440×1080 content is upsampled to 1920×1080 on playback. The recorded video bit rate is 144 Mbit/s. Audio is also similar, with four channels of AES3 20-bit, 48 kHz digital audio. Like Betacam, HDCAM tapes were produced in small and large cassette sizes; the small cassette uses the same form factor as the original Betamax. The main competitor to HDCAM was the DVCPRO HD format offered by Panasonic, which uses a similar compression scheme and bit rates ranging from 40 Mbit/s to 100 Mbit/s depending on frame rate. HDCAM is standardized as SMPTE 367M, also know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-VHS
D-VHS (short for Digital VHS) is a digital video recording format developed by JVC in collaboration with Hitachi, Matsushita, and Philips. Introduced in December 1997, it was designed to record digital video, including high-definition content, using the same higher-grade tapes as S-VHS (Super VHS), which could accommodate the increased data rates required by the format. Unlike analog-based VHS and S-VHS, D-VHS records video digitally using MPEG-2 compression and stores it in an MPEG transport stream, a format also used in DVDs and digital television broadcasts. The format was standardized by the International Electrotechnical Commission as IEC 60774-5. JVC also developed D-Theater, a proprietary variant of D-VHS used for prerecorded high-definition movies. D-Theater tapes featured studio-released content in 720p or 1080i resolution, offering a home viewing experience similar to early Blu-ray and HD DVD formats. However, the system required compatible D-VHS players and include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
