公开(公告)号：US09892285B2

公开(公告)日：2018-02-13

申请号：US14902307

申请日：2015-04-13

Applicant: JRD COMMUNICATION INC.

Inventor： Xuelong Ronald Hu ,  Aiping Guo ,  Shiqing Zhao

IPC: H04L29/06 ,  G06F21/85 ,  H04L9/30 ,  H04L9/32 ,  H04L9/14 ,  G06F21/44

CPC classification number: G06F21/85 ,  G06F21/44 ,  H04L9/14 ,  H04L9/30 ,  H04L9/32 ,  H04L9/3234

Abstract: An accessory, an electronic apparatus and a system for accessory certification is disclosed. The accessory comprises an encryption chip, with the encryption chip comprising a first memory module, configured to store a private certification key and a mixed certification key formed at least by combining a public certification key and pseudo keys according to a predetermined rule. The processing module of the electronic apparatus at least extracts the public certification key from the mixed certification key according to an algorithm matched with the predetermined rule when the electronic apparatus and the accessory are forming a physical connection. The processing module uses the public certification key to certify the accessory. In such a manner, the present invention can improve the security level of keys so as to improve the security and reliability for the electronic apparatus to use the accessory.

公开(公告)号：US20170134090A1

公开(公告)日：2017-05-11

申请号：US15104227

申请日：2015-07-31

Applicant: JRD COMMUNICATION INC.

Inventor： Shiqing Zhao ,  Xuelong Ronald Hu ,  George Guo

IPC: H04B10/116 ,  H04M1/725 ,  H04M1/737

CPC classification number: H04B10/116 ,  H04M1/7253 ,  H04M1/737

Abstract: A handheld terminal, a computer and a visible light communication system are disclosed. In the handheld terminal, a first backlight apparatus is disposed on a display screen of the handheld terminal, a first data processing apparatus accesses data from a first data storage apparatus and converts the data to multiple luminance level control signals that are used to control the luminance level of the first backlight apparatus, a first control apparatus controls the first backlight apparatus to adjust its current luminance based on the multiple luminance level control signals, and the first backlight apparatus changes its luminance in accordance with the change of the data and, as a result, transmits the data to the computer in the form of visible light. Thus, the present disclosure eliminates the need of cumbersome physical connection ports and intermediate connection cables, and enables stable, reliable and highly secure visible light communications.