There are 6 names in this directory beginning with the letter H.
High Definition TV - An all-digital TV broadcast signal that delivers a high-resolution, wide-screen picture and 6 channels of digital sound. A resolution of 1,080 lines is considered high definition imagery, although 720 lines of progressive scanning has now come to be considered high resolution as well.
Hybrid Fibre Coaxial - Most commonly found wiring format of cable television systems, where the main trunk cables and larger feeds consist of high capacity fibre optic wires, whilst the local feeds to the home are coaxial. Commonly used by US and Canadian Cable TV Operators.
Headend-In-The-Sky - A satellite-based cable distribution platform through which hundreds of digital quality cable television channels can be distributed to the entire country simultaneously. Consumers can subscribe to these channels via a set-top box from their local cable operators.
High-Speed Downlink Packet Access - A packet-based mobile telephony protocol used in 3G UMTS radio networks to increase data capacity and speed up transfer rates.