Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-02-07
2006-02-07
Milord, Marceau (Department: 2682)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S025000, C455S069000, C455S106000, C455S107000, C342S442000, C342S443000, C342S444000, C342S405000, C342S357490, C342S350000
Reexamination Certificate
active
06996420
ABSTRACT:
Disclosed are a mobile station unit which can obtain azimuth information with a simple construction and a radio communication system including the mobile terminal unit. According to the present invention, in a terminal station, an arrival direction obtaining section203obtains an arrival direction of a received azimuth designation signal from a reference station or another terminal station using an arithmetic operation or the like. A transmitting direction forming section204determines the direction opposite to the arrival direction obtained by the arrival direction obtaining section203as a transmitting direction. A reference azimuth detecting section207detects the transmitting direction determined by the transmitting direction forming section204as a reference azimuth. An azimuth designation signal generating section205generates an azimuth designation signal so as to radiate radio waves having directivity in the transmitting direction determined by the transmitting direction forming section204.
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International Search Report dated Apr. 9, 2002.
Aramaki Takashi
Hirano Jun
Ohta Gen-Ichirou
Matsushita Electric - Industrial Co., Ltd.
Milord Marceau
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