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AssigneeNederlandse Organisatie Voor Toegepast-Natuurwetenschappeluk Onderzoek Tno
InventorsRudy Overduin, Petrus Johannes Maria Rijsdijk, Nils Anders Stefan Gustafsson
Estimating the term…
A peer-to-peer communication system (1) capable of operating in push-to-talk mode comprises terminals (2, 2A, 6) capable of push-to-talk, peer-to-peer radio communication, and an enhancing device (3) arranged for coupling with the terminal. The enhancing device (3) comprises: • an antenna (31) for transmitting and receiving radio signals, • a band-pass filter (32) for selecting a frequency band of the radio signals, • a bidirectional amplifier (33) for amplifying radio signals alternatingly in a transmitting and in a receiving direction, • a control unit (34) for controlling the bidirectional amplifier (32) in response to a sensor signal, and • a sensor (35) for detecting whether the terminal (2A; 6) is transmitting or receiving and for producing the sensor signal in response thereto, which sensor is galvanically isolated from the terminal. The communication system (1) may be a Terrestrial Trunked Radio system, commonly known as TETRA system, more in particular a TETRA system operating in Direct Mode. The antenna (31) may be a can antenna or a loop-fed antenna. Lighting device with a wind-powered cleaning member
An enhancing device for enhancing communication in a peer-to-peer communication system capable of operating in push-to-talk mode, the communication system comprising terminals capable of push-to-talk, peer-to-peer radio communication, the enhancing device being arranged for coupling with a terminal and comprising:
A peer-to-peer communication system capable of operating in push-to-talk mode, the communication system comprising:
A method of enhancing communication in a peer-to-peer communication system capable of operating in push-to-talk mode, the communication system comprising:
Dependencies are inferred from the claim text.