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Apple Invents a Method of Increasing Apple Watch Performance by delivering more Efficient Inductive Coils

1 cover apple watch charging redesign nov 2017 patently apple


On October 1st Patently Apple posted a patent report titled "While the MacBook's Terraced Battery is another Patent Fulfilled, it's also Testament to Apple's Maniacal attention to Design Detail."


The patent figure below juxtaposed to Apple's marketing material shows you how Apple worked to provide its MacBook customers with more battery to extend battery life by inventing a new custom terraced battery cell. Now Apple is working on delivering a similar solution for Apple Watch.



Today the US Patent & Trademark Office published a patent application from Apple that relates to creating a custom inductive coil for possibly a future Apple Watch that utilizes space better just like Apple did with the terraced battery cell for the MacBook. Instead of creating a terraced battery, Apple's engineer team is shown to have worked on increasing the size of the inductive coils in both the watch and charger.



Apple's patent FIG. 1A noted above shows a device having a device housing that includes a protruding wall designed to accommodate a sensor; FIG. 1B shows how by gradually increasing the outer diameter of each loop of a charging coil the space between a protruding wall of the device housing and an operational component can be more efficiently utilized; FIG. 1C shows how varying the diameter of wires making up a charging coil can also maximize wire density when the charging coil is configured to be positioned proximate a convex surface.


The bottom line is that the invention relates to ways in which components can be efficiently arranged within a device housing to improve the performance of the device without increasing the size of the device housing.


Apple's patent application #20170331316 was filed back in Q2 2016. Considering that this is a patent application, the timing of such a product to market is unknown at this time.


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