Terms and Abbreviations: H
H
H.264
digital video codec standard
HAD
Hole Accumulation Diode
note technique patented by Sony
HANC
horizontal ancillary
HD
high definition
HD DVD
a blue laser high-def DVD format
HDCP
high-bandwidth digital content protection
HDD
hard disk drive
HDMI
high-definition multimedia interface
HDR
high dynamic range
HD-SDI
high-definition serial digital interface
HDSPA
high-speed downlink packet access
HDTV
high-definition television
HDUPA
high-speed uplink packet access
HDV
high-definition video
HE-AAC
High Efficiency AAC
HF
high frequency
HFC
hybrid fiber coax/coaxial
HPC
high-performance computing
HRP
horizontal radiation pattern
HSM
hierarchical storage management
HTTP
Hypertext Transfer Protocol
Hyper HAD
A derivative of the HAD sensor
Hz
hertz
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