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ATSC Digital Television
Published in Skip Pizzi, Graham A. Jones, A Broadcast Engineering Tutorial for Non-Engineers, 2014
Some DTV receivers and set-top boxes are designed to display the additional program-related data services. Typically, these receivers have additional buttons on their remote controls for the request and display of this additional information, and the receiver has memory to store at least some of the data received. Other types of data services are intended to be used on a computer. Computers can have a DTV tuner added to receive such services or, in some cases, it may be possible to connect a computer to a DTV set-top box. With the convergence of technologies, the line between television and computer devices is becoming blurred, and television receivers with hard disk storage and an Internet connection (often referred to as “smart TVs” or “connected TVs”) are increasingly common. Eventually it is expected that most television-viewing devices will have network capabilities, allowing the possibility of accessing, sharing, and displaying all forms of digital media across all of a user's media devices. (See Chapters 17 and 18 for more on this topic.)
Descriptive Statistics
Published in Seong-woo Woo, Design of Mechanical Systems Based on Statistics, 2021
Under this definition, the number of failed televisions before the reach of MTTF would be so high that customers would never receive the MTTF as a lifetime index in the current competitive market situation. The products of first-class companies have fewer failures in a lifetime than would occur at the MTTF. In the case of home appliances, customers expect no failure for the first 10 years. The failure of a TV is accepted from the customer’s view in the later period. Customers would expect the failure of all televisions once the anticipated usage time is exceeded – 12 years in the case of a television set – but they will not accept major problems within the first 10 years.
Electronic Communications
Published in Dale R. Patrick, Stephen W. Fardo, Electricity and Electronics Fundamentals, 2020
Dale R. Patrick, Stephen W. Fardo
A television receiver is designed to intercept the electromagnetic waves sent out by the transmitter and use them to develop sound and a picture. The received signals are in the VHF or UHF band. The FCC has allocated a 6-MHz bandwidth for each TV channel. Channels 2 through 13 are in the VHF band. These frequencies are from 54 to 216 MHz. Channels 14 through 83 are in the UHF band which ranges from 470 to 890 MHz. All channels in the immediate area induce a signal into the antenna. A desired station is selected by altering a tuning circuit. This LC circuit passes only the selected channel and rejects the others.
Identification of usability problems and requirements of elderly Chinese users for smart TV interactions
Published in Behaviour & Information Technology, 2019
Jinhua Dou, Jingyan Qin, Qingju Wang, Qichao Zhao
With the development of Information and Communications Technology (ICT), various types of smart products have been produced and penetrated all aspects of our lives. Television (TV) is expected to become a more intelligent and useful medium through smart TV terminals. Smart television (smart TV) is one of the smart products that combines content, an operating system (OS), and the internet, and a TV terminal can provide various services for our life, e.g. internet browsing, multimedia and gaming. Smart TVs with operating systems or mobile operating system software can also provide a platform for application developers (Jung 2011; Kim, Ahn, and Hong 2011).