High-definition
Generally, high-definition refers to an increase in resolution or clarity
- High-definition television
- Historically, the phrase "high-definition television" referred to any significant increase in resolution. NTSC was once considered high-definition, as were other formats.
- In the modern sense, such as in the ATSC and ISDB formats.
- The HD Radio name for iBiquity's digital radio system is often expanded to "high-definition radio" (unnecessarily, some would argue)
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See also: High-definition, ATSC, Digital radio, HD Radio, High-definition television, IBiquity, ISDB, NTSC
