• Patent Title: Method and arrangement for transmitting voice signals between a controller and a transport user
  • Application No.: US15820667
    Application Date: 2017-11-22
  • Publication No.: US10070276B2
    Publication Date: 2018-09-04
  • Inventor: Robert Aster
  • Applicant: FREQUENTIS AG
  • Applicant Address: AT Vienna
  • Assignee: Frequentis AG
  • Current Assignee: Frequentis AG
  • Current Assignee Address: AT Vienna
  • Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
  • Priority: ATA51065/2016 20161124
  • Main IPC: H04B7/00
  • IPC: H04B7/00 H04W4/10 H04B7/185
Method and arrangement for transmitting voice signals between a controller and a transport user
Abstract:
A method performs radio communication between a controller and a transport user. A controller creates voice signals which are transmitted via a switching system to a transmitting antenna as a radio signal. The voice signals are received via a receiving antenna and are transmitted to the switching system. A squelch signal is created and indicates whether the signal applied to the receiving antenna contains voice messages. A component of the voice signal emitted by the controller and is received with a time delay, is removed from the received voice signal or is compensated for, and a corrected voice signal is determined. The corrected voice signal is transmitted to the controller, if the squelch signal is present, the signal which is emitted by the controller and does not reach the switching system with a time delay is superimposed on the corrected voice signal and the latter is transmitted to the controller.
Information query
Patent Agency Ranking
0/0