The US Patent & Trademark Office recently published a patent application from LG Electronics that revealed a new smartphone and/or tablet wireless charging system in the works. LG notes that preferably, the wireless power transmitting unit will transform the power into the magnetic field that could share power with other devices. Cool.
LG's Wireless Charging System Patent Figures
LG's patent FIG. 3 is a block diagram of a wireless power transmitting unit; patent FIG. 7B is diagram to describe a method for one mobile terminal to transmit a power to another mobile terminal in the course of receiving a power by wireless transmission.
The interesting aspect of this wireless system is because the portable charging device includes a wireless power transceiving unit, it'll be able to exchange power with another mobile terminal using a wireless charging mechanism. Sharing power is an interesting idea.
LG notes that because the transceiving is performed by wireless, the portable charging device may not need a terminal for a charging. As the portable charging device does not have the charging terminal, it may be facilitated to have a waterproof function. If a waterproof structure is further provided to the portable charging device, then a waterproof level of the portable charging device may be raised.
Secondly, when the portable charging device is charged or another device is charged using the portable charging device, the corresponding charging can be performed by wireless. Therefore it may be unnecessary to connect terminals of the two devices together after taking the portable charging device out of a case or bag. When the charging is performed, a user's convenience can be enhanced.
LG's patent application was filed in the US in Q4 2012 and in Q2 2012 in Korea. Considering that this is a patent application, the timing of such a product to market is unknown at this time.
Our cover graphics includes Fig 7A(a) which shows a magnetic field generated from a wireless charging pad powering to charge a smartphone or tablet. The second graphic is in-part showing an element of patent FIG. 6 illustrating a receiving coil.
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