CARRIERLESS AMPLITUDE/PHASE MODULATION
\kˈaɹi͡ələs ˈamplɪtjˌuːd slˈaʃ fˈe͡ɪz mˌɒdjʊlˈe͡ɪʃən], \kˈaɹiələs ˈamplɪtjˌuːd slˈaʃ fˈeɪz mˌɒdjʊlˈeɪʃən], \k_ˈa_ɹ_iə_l_ə_s ˈa_m_p_l_ɪ_t_j_ˌuː_d s_l_ˈa_ʃ f_ˈeɪ_z m_ˌɒ_d_j_ʊ_l_ˈeɪ_ʃ_ə_n]\
Definitions of CARRIERLESS AMPLITUDE/PHASE MODULATION
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(CAP) A design of Asymmetric DigitalSubscriber Line transceiver developed by Bell Labs. CAPwas the first ADSL design to be commercially deployed and, asof August 1996, was installed on more lines than any other.CAP is a variation of Quadrature Amplitude Modulation, themodulation used by most existing modems in 1997. With CAP,the three channels (POTS, downstream data and upstream data)are supported by splitting the frequency spectrum. Voiceoccupies the standard 0-4 Khz frequency band, followed by theupstream channel and the high-speed downstream channel.
By Denis Howe
Word of the day
Fructose 6 P,2 kinase
- An allosteric enzyme regulates glycolysis gluconeogenesis by catalyzing transfer of phosphate group from ATP bisphosphate, effector for other 6-phosphofructokinase, 1. Phosphofructokinase-2 bifunctional: dephosphorylated form is a kinase and the phosphorylated phosphatase that breaks down fructose-2,bisphosphate to yield phosphate.