filter case
101Analog-to-digital converter — An analog to digital converter (abbreviated ADC, A/D or A to D) is an electronic integrated circuit, which converts continuous signals to discrete digital numbers. The reverse operation is performed by a digital to analog converter… …
102Cutoff frequency — This article is about signal processing. For other uses, see Cutoff (disambiguation). Magnitude transfer function of a bandpass filter with lower 3 dB cutoff frequency f1 and upper 3dB cutoff frequency f2 …
103Polarization — ( Brit. polarisation) is a property of waves that describes the orientation of their oscillations. For transverse waves, it describes the orientation of the oscillations in the plane perpendicular to the wave s direction of travel. Longitudinal… …
104Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
105Internet censorship in the People's Republic of China — Part of a series on Censorship By media …
106Green roof — Traditional sod roofs can be seen in many places in the Faroe Islands …
107Nominal impedance — in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of: The nominal value of …
108Children's Internet Protection Act — The Children s Internet Protection Act (CIPA) requires that K 12 schools and libraries in the United States use Internet filters and implement other measures to protect children from harmful online content as a condition for the receipt of… …
109Lock-in amplifier — A lock in amplifier (also known as a phase sensitive detector) is a type of amplifier that can extract a signal with a known carrier wave from extremely noisy environment (S/N ratio can be as low as 60 dB or even lessFact|date=December 2007). It… …
110Internet censorship — is control or suppression of the publishing or accessing of information on the Internet. The legal issues are similar to offline censorship.One difference is that national borders are more permeable online: residents of a country that bans… …
