Patents Assigned to Samsung Electromnics Co., Ltd.
  • Patent number: 8351547
    Abstract: A wireless communication device and method are capable of detecting a receive timing of a direct wave at higher precision without increasing transmit power. A signal receiver receives a signal having a center frequency changed in a predetermined rule at predetermined time intervals. A time-frequency transformer transforms the received signal from a time domain to a frequency domain. A filter removes frequency-domain signal components unused during reception, based on the predetermined rule, from the frequency-domain signal. A reverse modulator performs a reverse modulation process on the remaining signal components. A signal adder generates an added signal by performing accumulative addition on the signal components that underwent the reverse modulation process in the reverse modulator for a predetermined period. A direct wave arrival time determiner determines an arrival time of a direct wave according to an impulse response obtainable from an output of the frequency-time transformer.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 8, 2013
    Assignee: Samsung Electromnics Co., Ltd.
    Inventor: Tetsuhiko Miyatani