FULL DUPLEX SINGLE CHIP ACOUSTIC

Brand	Owner	Address	Description
TRUEPLEX	Mitel Corporation	400 March Road Kanata K2K 3H4	Full duplex single chip acoustic echo canceller for use on speaker phones, digital business phones, mobile cellular hands free units and videoconferencing applications;TRUE PLEX;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics module. A first of the acoustic sensors detects a communication signal that propagates along a tubing string in a first direction. A second of the acoustic sensors is configured to detect the communication signal before the first acoustic sensor. The electronics module combines the detection signals from the acoustic sensors to obtain a combined signal that substantially excludes signals propagating in a direction opposite to the communication signal. Such signal suppression may significantly enhance the communication signal's signal-to-noise ratio, thereby increasing channel capacity. The acoustic telemetry device may be configured to support logging while drilling and/or full-duplex communication.