low-pass filter


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Related to low-pass filter: high-pass filter, LPF

low-·pass fil·ter

a device or material with the opposite effect from a high-pass filter; most tissues act as low-pass filters of ultrasound signals.

low-pass filter

A filter that removes high-frequency waves from a sample, allowing only those below a specified frequency to pass.
See also: filter
References in periodicals archive ?
Omar, "Control of bandstop response of Hi-Lo microstrip low-pass filter using slot in the ground plane," IEEE Trans.
As new members of the SC65x tiny charge pump platform, these devices are the industry's first LED drivers to integrate digital low-pass filters that convert a PWM dimming signal's duty-cycle into DC current for LCD backlighting with white LEDs.
It is hard to synthesize a rectangular waveguide low-pass filter using the standard elliptic function element-value [32].
What's more, the absence of a low-pass filter maximizes the superior resolution of the high pixel count and rendering capabilities of NIKKOR lenses.
The re-designed new Super CCD SR Pro features an optimized low-pass filter that will reduce the noise and minimize moire.
E[acute accent]Specifically, the on-chip line driver and analog low-pass filter directly drives a 2Vrms consumer line level audio output, eliminating the need for an operational amplifier and as many as 10 passive components within system designs.
They can be used in central office (CO) applications as single-line low-pass filter solutions mounted on the digital subscriber line access multiplexer (DSLAM), multi-service access node (MSAN) splitter board, or main distribution frame (MDF).
Thanks to Canon design and manufacturing know-how along with having the low-pass filter integrated with the CMOS cover glass, the EOS 5D digital SLR is unusually streamlined for a camera with a full-frame sensor.
Based on the popular EOS 20D camera and joining it as a companion model in Canon's product line, the new EOS 20Da digital SLR helps address the specific requirements of astrophotography with features such as a live preview LCD and a modified low-pass filter optimized to help photograph the clear night sky in brilliant detail.
The Z-A431PJ31X-A contains three filters: one plain old telephone service (POTS) low-pass filter to protect the alarm panel from DSL interference, a second POTS low-pass filter to protect DSL from impedance changes in the alarm panel, and a high-pass DSL filter to ensure ongoing DSL service, even during an alarm call.