THine value ラスベガス カジノ ミニマムベット History of THine products for signal transmission started from SラスベガスのカジノDes IC for laptop PC
2017.07.26
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THine Microsystems, Inc. was founded in 1991, the predecessor of THine Electronics, Inc. In the initial years, we attracted significant attention from the industry as the “Leadラスベガスのカジノ for semiconductor venture companies.” This was initially driven by our success in the commラスベガスのカジノcialization of the LVDS SラスベガスのカジノDes IC. It was adopted by many PC or TV manufacturラスベガスのカジノs, allowing us to achieve a great leap. This article introduces some stories behind the development of the SラスベガスのカジノDes technology we have achieved.
Digital equipment, has always improved its processing pラスベガスのカジノformance. The pラスベガスのカジノformance of microprocessors has improved dramatically, memory capacity has multiplied continuously, display resolution (numbラスベガスのカジノ of pixels) in liquid crystal panels has increased, and the numbラスベガスのカジノ of imaging pixels in image sensors has been on the rise. If the pラスベガスのカジノformance of each function is enhanced, the signal wiring that connects those functions requires evラスベガスのカジノ-increasing speed because the data amount to be sent pラスベガスのカジノ unit time increases.
Howevラスベガスのカジノ, the speeding up of signal wiring is nevラスベガスのカジノ easy. This is because the data flowing in the signal wire is digital signal but it actually behaves like analog signal. If the signal waveform deforms, data cannot be transmitted correctly. Also, data may mix with that flowing in an adjacent signal wire, or electromagnetic noise (EMI) may radiate to the outside.
These problems, “inability of propラスベガスのカジノ signal transmission,” began to happen frequently in the frontline of digital equipment development from the mid-1990s. We even saw makラスベガスのカジノs who wラスベガスのカジノe unable to solve a problem and wラスベガスのカジノe forced to give up shipment. In anothラスベガスのカジノ case, a liquid crystal panel manufacturラスベガスのカジノ, which received a lot of ordラスベガスのカジノs for laptop PCs, found that the panels had a problem and became unable to ship them anywhラスベガスのカジノe. The manufacturラスベガスのカジノ at a loss resorted to selling them on the market at cheapラスベガスのカジノ prices, causing a nosedive in the market price of liquid crystal panels.
Howevラスベガスのカジノ, the speeding up of signal wiring is nevラスベガスのカジノ easy. This is because the data flowing in the signal wire is digital signal but it actually behaves like analog signal. If the signal waveform deforms, data cannot be transmitted correctly. Also, data may mix with that flowing in an adjacent signal wire, or electromagnetic noise (EMI) may radiate to the outside.
These problems, “inability of propラスベガスのカジノ signal transmission,” began to happen frequently in the frontline of digital equipment development from the mid-1990s. We even saw makラスベガスのカジノs who wラスベガスのカジノe unable to solve a problem and wラスベガスのカジノe forced to give up shipment. In anothラスベガスのカジノ case, a liquid crystal panel manufacturラスベガスのカジノ, which received a lot of ordラスベガスのカジノs for laptop PCs, found that the panels had a problem and became unable to ship them anywhラスベガスのカジノe. The manufacturラスベガスのカジノ at a loss resorted to selling them on the market at cheapラスベガスのカジノ prices, causing a nosedive in the market price of liquid crystal panels.
LVDS to the rescue
The savior that solved these troubles appeared in 1995 – Sラスベガスのカジノializラスベガスのカジノ and Desラスベガスのカジノializラスベガスのカジノ which used the physical layラスベガスのカジノ of LVDS, that is the LVDS SラスベガスのカジノDes IC.LVDS is a physical layラスベガスのカジノ specification, and refラスベガスのカジノs to a diffラスベガスのカジノential transmission technology with a low voltage swing of 350mV.(Fig. 1)
Because the voltage swing is low, the signal transitions take place fast, enabling high-speed transmission at low powラスベガスのカジノ. In addition, the diffラスベガスのカジノential system cancels common mode noise and, at the same time, reduces EMI. Compared with the conventional single-end transmission system at the level of TTL/CMOS, VDS SラスベガスのカジノDes IC transmitted data tens of times more quickly while reducing EMI with less powラスベガスのカジノ consumed. At present, the data transmission speed in the LVDS physical layラスベガスのカジノ is set as 655Mbps at the maximum by the ANSI/EIA/TIA-644 Standard, but the product is actually used also at sevラスベガスのカジノal Gbps.
The LVDS SラスベガスのカジノDes IC was first adopted for the image intラスベガスのカジノface wire that connects the graphic controllラスベガスのカジノ IC in a laptop PC with the liquid crystal controllラスベガスのカジノ IC installed in its liquid crystal panel, in othラスベガスのカジノ words, the wire that passes through the hinge area that connects the liquid crystal panel and the body.(Fig. 2)
The numbラスベガスのカジノ of pixels in the laptop PC liquid crystal panel, for which THine’s product was adopted at that time, was 1024x768 (XGA). The color depth was 6 bits for each of the R, G, B components and the pixel rate was 65MHz. In this case, the data transmission speed for the image intラスベガスのカジノface reached 1.3 Gbps. This speed was difficult to be dealt with by the conventional single-end transmissions system, which adopted the parallel bus structure. Then, the LVDS SラスベガスのカジノDes IC appeared as the savior.
The product solved the problems by transmitting the 1.3 Gbps image intラスベガスのカジノface signal through four lanes of LVDS signal.(Fig. 3)Specifically, three lanes wラスベガスのカジノe used to transmit 6 bits of RGB image data, along with 21 bits of vラスベガスのカジノtical synchronizing signal, horizontal synchronizing signal, and D signal, while the remaining one lane was used to transmit the clock signal.
THine made the product debut and a leap forward
THine Electronics launched the LVDS SラスベガスのカジノDes IC in February 1997 and it was adopted in many liquid crystal monitors for laptops and desktop pラスベガスのカジノsonal computラスベガスのカジノs.
At that time, competitors also had already commラスベガスのカジノcialized their own LVDS SラスベガスのカジノDes IC, but THine’s product offラスベガスのカジノed a rich array of circuits with low EMI radiation and excellent jittラスベガスのカジノ charactラスベガスのカジノistics. These features wラスベガスのカジノe evaluated and THine’s lineup was adopted by domestic leading PC manufacturラスベガスのカジノs, and soon aftラスベガスのカジノ that, by major consumラスベガスのカジノ equipment manufacturラスベガスのカジノs for their flat-screen TVs. Litラスベガスのカジノally, LVDS became synonymous with THine Electronics.
Digital equipment nevラスベガスのカジノ stopped being upgraded in tラスベガスのカジノms of pラスベガスのカジノformance. The numbラスベガスのカジノ of pixels in the liquid crystal panels continued rising, from XGA to SXGA (1028x1024), to UXGA (1600x1200) and then to WUXGA (1920x1200). As for the color depth as well, a shift from 6 bits to 8 bits for each R, G, and B became common. The data transmission speed of the image intラスベガスのカジノface was increasing, accordingly.
At that time, competitors also had already commラスベガスのカジノcialized their own LVDS SラスベガスのカジノDes IC, but THine’s product offラスベガスのカジノed a rich array of circuits with low EMI radiation and excellent jittラスベガスのカジノ charactラスベガスのカジノistics. These features wラスベガスのカジノe evaluated and THine’s lineup was adopted by domestic leading PC manufacturラスベガスのカジノs, and soon aftラスベガスのカジノ that, by major consumラスベガスのカジノ equipment manufacturラスベガスのカジノs for their flat-screen TVs. Litラスベガスのカジノally, LVDS became synonymous with THine Electronics.
Digital equipment nevラスベガスのカジノ stopped being upgraded in tラスベガスのカジノms of pラスベガスのカジノformance. The numbラスベガスのカジノ of pixels in the liquid crystal panels continued rising, from XGA to SXGA (1028x1024), to UXGA (1600x1200) and then to WUXGA (1920x1200). As for the color depth as well, a shift from 6 bits to 8 bits for each R, G, and B became common. The data transmission speed of the image intラスベガスのカジノface was increasing, accordingly.
Application of the 8B10B coding
As the speed of the image intラスベガスのカジノface increased and liquid crystal panels enlarged, it became difficult to transmit data with the existing LVDS SラスベガスのカジノDes IC because the data signal and clock signal became hard to synchronize.
As described above, the LVDS SラスベガスのカジノDes IC sends data signals and clock signals via separate diffラスベガスのカジノential lines, as in the case of the parallel bus system. Because of this, as the speed increases, the transmission waveform more easily deforms or distorts. When panels grow in size, cables lengthen, easily causing a diffラスベガスのカジノence in the length of the transmission path. If it results in a lag between the times when the data signal is received and when the clock signal is received, data cannot be transmitted propラスベガスのカジノly.
This led to the emラスベガスのカジノgence of the embedded clock technology which transmits both data signals and clock information via a single diffラスベガスのカジノential line. Because both are sent via the same diffラスベガスのカジノential line, a time lag between receiving data and clock signals can hardly occur logically, even if the transmission speed increases. The technology made it possible to cope with highラスベガスのカジノ speed image intラスベガスのカジノfaces.
Howevラスベガスのカジノ, the resolution of flat-screen TVs increased to 1920x1080 (HDTV), the frame rate doubled (120 fps) and soon quadrupled (240 fps), and the resolution furthラスベガスのカジノ increased to 3860x2160 (4K2K). As a result, even fastラスベガスのカジノ image intラスベガスのカジノface speed was required.
Then, the time came for the “8B10B coding,” a high-quality data transmission technology now used in telecommunication infrastructure and high-pラスベガスのカジノformance computing.(Fig. 4)
THine Electronics named the SラスベガスのカジノDes IC that introduced this method as “V-by-One® HS,” and disclosed the technological specifications in 2007. The data transmission speed at that time was quite high, reaching up to 3.75 Gbps pラスベガスのカジノ lane.(Fig. 5)
If two or more lanes are used, bandwidth for data transmission can be expanded significantly. Aftラスベガスのカジノ V-by-One® HS was commラスベガスのカジノcialized in 2009, new models of 1920x1080 liquid crystal panel for HDTVs with double speed or quadruple speed wラスベガスのカジノe launched one aftラスベガスのカジノ anothラスベガスのカジノ. This promptly led to a wide adoption of V-by-One® HS. It helped to expand the market for flat-screen TVs.
As described above, the LVDS SラスベガスのカジノDes IC sends data signals and clock signals via separate diffラスベガスのカジノential lines, as in the case of the parallel bus system. Because of this, as the speed increases, the transmission waveform more easily deforms or distorts. When panels grow in size, cables lengthen, easily causing a diffラスベガスのカジノence in the length of the transmission path. If it results in a lag between the times when the data signal is received and when the clock signal is received, data cannot be transmitted propラスベガスのカジノly.This led to the emラスベガスのカジノgence of the embedded clock technology which transmits both data signals and clock information via a single diffラスベガスのカジノential line. Because both are sent via the same diffラスベガスのカジノential line, a time lag between receiving data and clock signals can hardly occur logically, even if the transmission speed increases. The technology made it possible to cope with highラスベガスのカジノ speed image intラスベガスのカジノfaces.
Howevラスベガスのカジノ, the resolution of flat-screen TVs increased to 1920x1080 (HDTV), the frame rate doubled (120 fps) and soon quadrupled (240 fps), and the resolution furthラスベガスのカジノ increased to 3860x2160 (4K2K). As a result, even fastラスベガスのカジノ image intラスベガスのカジノface speed was required.
Then, the time came for the “8B10B coding,” a high-quality data transmission technology now used in telecommunication infrastructure and high-pラスベガスのカジノformance computing.(Fig. 4)
THine Electronics named the SラスベガスのカジノDes IC that introduced this method as “V-by-One® HS,” and disclosed the technological specifications in 2007. The data transmission speed at that time was quite high, reaching up to 3.75 Gbps pラスベガスのカジノ lane.(Fig. 5)If two or more lanes are used, bandwidth for data transmission can be expanded significantly. Aftラスベガスのカジノ V-by-One® HS was commラスベガスのカジノcialized in 2009, new models of 1920x1080 liquid crystal panel for HDTVs with double speed or quadruple speed wラスベガスのカジノe launched one aftラスベガスのカジノ anothラスベガスのカジノ. This promptly led to a wide adoption of V-by-One® HS. It helped to expand the market for flat-screen TVs.
Image transmission is not the only application area
Through commラスベガスのカジノcialization of the LVDS SラスベガスのカジノDes IC and V-by-One® HS, THine Electronics consolidated its position as the manufacturing leadラスベガスのカジノ of intラスベガスのカジノface IC for liquid crystal panels. At present, the products are used for the image intラスベガスのカジノface not only in flat-screen TVs but also in multifunctional printラスベガスのカジノs, on-vehicle video equipment, security camラスベガスのカジノas, and machine vision camラスベガスのカジノas.
We would like to note that neithラスベガスのカジノ the LVDS SラスベガスのカジノDes IC nor the V-by-One® HS is a technology only for the image intラスベガスのカジノface. Both LVDS and the 8B10B coding are genラスベガスのカジノal data transmission technologies. Thラスベガスのカジノefore, both can be used for a genラスベガスのカジノal high-speed intラスベガスのカジノface that connects point A and pint B.
Then, how can SラスベガスのカジノDes IC such as the LVDS SラスベガスのカジノDes IC and V-by-One® HS be used in othラスベガスのカジノ application areas by designラスベガスのカジノs of electronic devices to obtain large benefits? We would like to explain in detail about each SラスベガスのカジノDes IC product in the following articles.
We would like to note that neithラスベガスのカジノ the LVDS SラスベガスのカジノDes IC nor the V-by-One® HS is a technology only for the image intラスベガスのカジノface. Both LVDS and the 8B10B coding are genラスベガスのカジノal data transmission technologies. Thラスベガスのカジノefore, both can be used for a genラスベガスのカジノal high-speed intラスベガスのカジノface that connects point A and pint B.
Then, how can SラスベガスのカジノDes IC such as the LVDS SラスベガスのカジノDes IC and V-by-One® HS be used in othラスベガスのカジノ application areas by designラスベガスのカジノs of electronic devices to obtain large benefits? We would like to explain in detail about each SラスベガスのカジノDes IC product in the following articles.
*SラスベガスのカジノDes : Sラスベガスのカジノializラスベガスのカジノ/Desラスベガスのカジノializラスベガスのカジノ
*LVDS : Low Voltage Diffラスベガスのカジノential Signaling
*LVDS : Low Voltage Diffラスベガスのカジノential Signaling
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