Iwatsu Electric Co., Ltd.
|Iwatsu Electric Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20110268037||MULTI-ANTENNA WIRELESS COMMUNICATION METHOD AND MULTI-ANTENNA WIRELESS COMMUNICATION DEVICE - The wireless communication devices A and B determine the optimal diversity combining weight information that optimizes a diversity reception state at each antenna group A||11-03-2011|
|20110150066||MULTI-ANTENNA WIRELESS COMMUNICATION METHOD, MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND MULTI-ANTENNA WIRELESS COMMUNICATION DEVICE - Wireless communication devices A and B perform wireless communication with the MIMO technology. The wireless communication devices A and B determine the optimal diversity combining information that optimizes a diversity reception state through a two-way training signal transfer. This determination can be made based on reception level information, baseband reception IQ information, correlation information between a diversity-combining received signal and a predetermined information sequence, or the like, which are obtained when the diversity combining information with respect to each antenna is sequentially changed. The optimal diversity combining information can be determined by receiving training frames or symbols (the number of antennas+1) times.||06-23-2011|
|20090283655||Electronic Apparatus With A Stand - A telephone with a stand has a rear case and a stand leg swingably connected to the rear case. The rear case includes an embossed portion disposed in the center of a back wall thereof, two swing pivots protrudingly arranged in respective lateral faces of the embossed portion, and V-shaped grooves formed in the back face adjacently to the pivots. The stand leg has two main legs and an auxiliary leg connecting the main legs to each other. Each of the main legs has a locking claw protruding from a tip end thereof and engaged with one of the V-shaped grooves, and a guide groove formed in the distal end of the main leg. The guide groove includes a main groove portion extending in the longitudinal direction of the main leg and a sub groove portion orthogonal to the main groove portion.||11-19-2009|
Patent applications by Iwatsu Electric Co., Ltd.