Glossary (U)

Glossary terms, covering electronic products with the letter U.

Up-Scaling

Process for setting the scale of an image so it can be displayed on a screen at a resolution at its native resolution. The majority of devices, DVD, Blu-ray players, home theater amplifiers and LED/Plasma televisions incorporate a method of up-scaling more or less efficient. Among the most powerful manufacturers dedicated to up-scaling are Anchor Bay, Marvell and HQV.

UPnP

This is a network protocol for streaming audio and/or video files. Many devices with media servers support this protocol, including Internet access providers, and especially some NAS drives/media servers. DLNA certified devices such as TVs, Blu-ray players or recent AV amplifiers are able to connect to the home server to read the content through a wired or WiFi connection. Apple smartphones or those running Android are also able, through the use of a dedicated application, to read the multimedia content available on UPnP servers.

UHS Ultra High Speed ​​Class

This is a specification of SD, SDHC and SDXC storage cards. The UHS-I standard provides a theoretical maximum speed of 50 to 100 MB/sec depending on the model. Currently the UHS-II standard can achieve 312 MB/sec.

Ultra Clear Panel

Samsung display glass with anti-reflective coating that improves the contrast of the image. This specifically designed by Samsung coating is composed of organic particles, thus limiting the inconvenience caused by reflections. The images appear more clear, with deeper blacks.

4K UHD

Ultra HD, also known as 4K corresponds to a resolution of 3840x2160 pixels and 4096x2160 pixels. Each image includes four times more detail than 1080p HD format.

UMTS

Universal Mobile Telecommunications System. Third generation mobile network, called 3G or Mobile Broadband. Newer networking standard based on the GSM network allows significantly higher data rates than GPRS on the normal GSM network. Data transmission via UMTS is the same as GPRS in the GSM network and charged equally.

USB

Universal Seriel Bus. Technology for simple (Plug and Play) connection of peripheral devices (eg. Printer or digital camera) to a PC. A memory stick or hard drive can be inserted directly into the USB connector to provide additional storage space. USB 1.0, 2.0 and 3.0 refers to the transfer rate. Currently, USB 3.0 is the fastest available speed capable of up to 10 times the rate of USB 2.0.

USB Streaming

When using a Digital8/MiniDV or MICROMV camcorder with ImageMixer software, it is possible to transfer video files directly from your camcorder to a PC. When image and video files are converted to JPEG or MPEG format, they can be sent as electronic greetings via e-mail, or they can be posted on a website. The camera can also be used as a webcam for video communication over the internet.