|
Term
|
Description
|
|
QAM
|
Quadrature Amplitude Modulation.A method of encoding digital
data in an analog signal in which each combination of phase
and amplitude represent one of sixteen four-bit patterns.
|
|
Qdesign Music Codec
|
Based in British Columbia, Qdesign developed a high quality,
streaming audio CODEC. Distributed by Apple as part of their
QuickTime media architecture, this CODEC gives excellent quality
at dialup data rates.
|
|
QDR RAM
|
Acronym for Quad Data Rate RAM. Type of memory that runs
4 times as fast as traditional Rams Two independent read and
write operations that occur on every rising and falling edge
of the clock.
|
|
QoS
|
Quality of Service. The set of parameters and their values
which determine the performance of a given virtual circuit.
"High QoS" usually means a guarantee of minimal (or no) data
loss, low latency, or a combination of both.
|
|
QPSK
|
QPSK - Quadrature Phase-Shift Keying. A method of modulating
digital signals using four phase states to code two digital
bits per phase shift.
|
|
Quadword
|
64 bits, sometimes knows as "QWORD"
|
|
Quantize
|
A step in the process of converting an analog signal into
a digital signal. Quantization measures a sample to determine
a representative numerical value that is then encoded. The
three steps in analog-to-digital conversion are sampling,
quantizing, and encoding.
|
| |
|
|
