Ericsson AVP 1000 1RU, Reference Manual, Page: 414 / 508

Glossary
A-18
EN/LZT 790 0023/1 R16A
SNTP Simple Network Time Protocol is an Internet protocol used to
synchronize the clocks of computers to some time reference. It is a
simplified version of the protocol NTP protocol which is too
complicated for many systems.
Spatial Redundancy Information repetition due to areas of similar luminance and/or
chrominance characteristics within a single frame. Removed using
DCT and Quantization (Intra-Frame Coding).
SPI
Synchronous Parallel Interface.
Statistical
Redundancy Data tables are used to assign fewer bits to the most commonly
occurring events, thereby reducing the overall bit rate. Removed
using Run Length Coding and Variable Length Coding.
TCP / IP
Transmission Control Protocol/Internet Protocol: A set of
communications protocols that may be used to connect different
types of computers over networks.
TDM Time Division Multiplex: One common, communications channel
carrying a number of signals, each with its own allotted time slot.
TDT Time and Date Table: Part of the DVB Service Information. The TDT
gives information relating to the present time and date.
Temporal
Redundancy Information repetition due to areas of little or no movement between
successive frames. Removed using motion estimation and
compensation (Inter-Frame Coding).
Time stamp A term that indicates the time of a specific action such as the arrival
of a byte or the presentation of a presentation unit.
TNS Temporal Noise Shaping.
TOT Time Offset Table: This optional SI table supports the use of local
offsets as well as the UTC time/date combination. The purpose of
the table is to list by country the current offset from UTC and the
next expected change to that offset (to track when daylight saving
occurs). The offset resolution is to within 1 minute over a range of
±
12 hours from UTC.
Transport Stream
A set of packetized elementary data streams and SI streams, which
may comprise more than one programme, but with common
synchronization and error protection. The data structure is defined in
ISO/IEC 13818-1 [1] and is the basis of the ETSI Digital Video
Broadcasting standards.
Transport Stream
Packet Header A data structure used to convey information about the transport
stream payload.
TS Transport Stream.
TSDT
Transport Stream Descriptor Table: A component of the MPEG-2
PSI data. This table describes which type of Transport stream it is in
(i.e. DVB, ATSC etc.). It may also contain other descriptors.
TSP Transport Stream Processor.
U
44.45 mm (rack height standard).