Recently, the U.S. Patent and Trademark Office published a patent application from Apple. According to the official patent document, the patent allows users' devices (UEs) to use multiple identity modules (SIMs). Popularly, it supports dual-card dual standby. (DSDS).
Before there was foreign media that the iPhone 7 will likely launch a dual-card version. Although it is only speculation, from this patent point of view, at least to some extent can prove that the dual card will be an alternative to Apple. If the program is finally implemented, this will be a very important and bold change for the iPhone.
Of course, Apple’s dual-card patent is different from other dual-card dual-standby technologies we have seen in the market. The patents illustrate how the iPhone communicates with two base stations. We know that today's wireless communications have evolved from basic call functions to data transmission services such as the Internet. Professional analysts said that if the iPhone eventually uses the dual-card feature, it will have better connection speed, call quality, and better network services than the dual-card phones on the market.
In addition, this patent is not only applicable to the iPhone, it can also be applied to Apple Watch, MacBook and other devices.
Low Voltage Current Transformer
Major Performance
â—Power frequency withstand voltage
The power frequency withstand voltage of the primary winding to the secondary winding and the grounding shell and the secondary winding to the ground shell is 3kV, and the experimental time is 5min. There is no damage to the insulation and no discharge phenomenon on the surface
â—interturn dielectric strength
The secondary winding is open, and the primary winding is open to expand the rated current and maintain for 1min. The insulation between turns of the secondary winding of the transformer is not damaged
Low Voltage Current Transformer,Utility Current Transformer,Economical Current Transformer,Low Voltage Ct
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