Registre Brevet WIPO
Numéro d'application JP2019031191
Numéro de publication 2021/024426
Statut Délivré - en vigueur
Date de dépôt 2019-08-07
Date de publication 2021-02-11
Propriétaire OMRON CORPORATION (Japon)
  • Sugimoto, Yoshiki
  • Murai, Akito
  • Hamana, Kentaro
  • Nguyen, Manh Tai


Provided is a noise canceling device for a wireless communication system in which a plurality of wireless communication devices which perform half-duplex communication by digital phase modulation are configured as an array. In the wireless communication system, the noise canceling device suppresses a wraparound signal from another wireless communication device by composing, on the basis of the baseband signal of a reception signal, a cancel signal, obtained by controlling at least one of the phase and amplitude of a transmission carrier signal, with a wireless reception signal. The noise canceling device is provided with a control unit that determines whether the number of bits per frame of the baseband signal to be transmitted is odd or even, and that inverts the cancel signal when the number is even.

Classes IPC  ?

  • H04B 1/525 - Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
  • H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference