4results about "Transmission noise reduction" patented technology

Method and apparatus for transferring a data signal including receiving a digital data signal by a first data input of a transmitter multiplexer; inverting the digital data signal by a first inverter,

This invention provides a wireless walkie-talkie and its anti-crosstalk method. The method includes: locating the walkie-talkie's position using a positioning system; when the walkie-talkie configuration information set does not completely cover all walkie-talkie configuration information, filtering out walkie-talkie configuration information not included in the set to obtain a set of available walkie-talkie configuration information; and a server selecting walkie-talkie configuration information from the available information set and configuring it into the walkie-talkie via a wireless transmission module. This invention avoids crosstalk phenomena caused by identical walkie-talkie configurations with other walkie-talkies, prevents communication with other walkie-talkies, and improves the privacy of walkie-talkie conversations within the team. Simultaneously, configuring the walkie-talkie configuration information wirelessly avoids manual configuration by the user, reduces the difficulty of operating the walkie-talkie, saves operation time, and improves the user experience.

A method for reducing noise using a neural-network-based adaptive line enhancer includes receiving an input signal including a narrowband signal and noise. The narrow signal and the noise are de-correlated via an artificial neural network. The artificial neural network generates an estimate of the narrowband signal. The noise in the input signal is reduced based on the estimated narrowband signal.

High frequency current source for active EMI filter, active EMI filter and use of active EMI filter. A high frequency current source having a symmetric bipolar output stage piloted by an active bias network with extended temperature range. The source is configured to provide high impedance at 1 MHz and above. The invention includes such active EMI filter having such high frequency current source, for example in a current sense current injection feedback configuration.