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Radar-frequency bands according to IEEE standard [17] Band designation Frequency range Explanation of meaning of letters; HF: 0.003 to 0.03 GHz: High frequency [18] VHF: 0.03 to 0.3 GHz: Very high frequency [18] UHF: 0.3 to 1 GHz: Ultra-high frequency [18] L: 1 to 2 GHz: Long wave S: 2 to 4 GHz: Short wave C: 4 to 8 GHz: Compromise between S ...
The compound name videophone slowly entered into general use after 1950, [90] although video telephone likely entered the lexicon earlier after video was coined in 1935. [91] Videophone calls (also: videocalls, video chat) [92] as well as Skype and Skyping in verb form [93] differ from videoconferencing in that they expect to serve individuals ...
High frequency (HF) is the ITU designation [1] [2] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).
A typical low-cost webcam (a Microsoft LifeCam VX-3000) for use with many popular video-telecommunication programs (2009). This list of video telecommunication services and product brands is for groupings of notable video telecommunication services, brands of videophones, webcams and video conferencing hardware and systems, all related to videotelephony for two-way communications with live ...
Super high frequency (SHF) is the ITU designation [1] [2] for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz). This band of frequencies is also known as the centimetre band or centimetre wave as the wavelengths range from one to ten centimetres.
Medical applications of radio frequency (RF) energy, in the form of electromagnetic waves (radio waves) or electrical currents, have existed for over 125 years, [9] and now include diathermy, hyperthermy treatment of cancer, electrosurgery scalpels used to cut and cauterize in operations, and radiofrequency ablation. [10]
Dialpad Meetings (formerly UberConference) is a cloud-based video conferencing system from Dialpad, a privately held company in San Francisco, California.The company, formerly known as Firespotter Labs, was co-founded by Craig Walker one year after he was the first Entrepreneur-in-Residence at Google Ventures.
Cisco TelePresence, first introduced in October 2006, is a range of products developed by Cisco Systems designed to link two physically separated rooms so they resemble a single conference room, regardless of location.