If you still remember, when Sony showed off the PSP in the United States at the E3 show in 2004, it showed off its translucent keyboard and mobile phone accessories that attracted public attention. But so far these configurations have not yet been realized, but... we finally saw clues of these things on the United States Patent and Trademark Office (USPTO) website.

The registration date of these two accessory patent documents is November 10, 2004 (the publication date is February 2006, three days apart). However, according to the statement of the PSP designer, These two accessories are just decorative products. Believe us, so-called patent applications are a bunch of nonsense. So will these things ever be produced and sold one day?

Well... although Sony has indeed released a lot of unexpected accessories for the PSP recently, it is still difficult for us to imagine that phone accessories will be a big seller. . However, Izumi Kawanishi himself has said that he hopes to be able to email as much as he wants on the PSP, and an external keyboard will be a good auxiliary tool. So keyboard accessories should be launched soon!

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