Display device, control method and program

US11546152B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11546152-B2
Application numberUS-201816964457-A
CountryUS
Kind codeB2
Filing dateMar 15, 2018
Priority dateMar 15, 2018
Publication dateJan 3, 2023
Grant dateJan 3, 2023

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A display device connected to a signal source outputting a video signal using an encryption protocol and that transmits the encryption key to the signal source includes: a transmission unit that transmits an own encryption key uniquely set for the display device and an encryption key transmitted from another display device connected to the display device as a lower device to the signal source and another display device connected as an upper device; and a stop instruction unit that instructs another display device corresponding to a predetermined encryption key included in an encryption key group based on the order of the own encryption keys included in the encryption key group to stop transmitting the encryption key received when the own encryption key is included in the encryption key group including a plurality of encryption keys transmitted from another display device connected as the lower device.

First claim

Opening claim text (preview).

The invention claimed is: 1. A display device, that is connected to a signal source for outputting a video signal using an encryption protocol, and that transmits an encryption key used in the encryption protocol to the signal source, comprising: a transmission unit that transmits own encryption key which comprises an encryption key uniquely set for the display device and an encryption key transmitted from another display device connected to the display device as a lower level dev…

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Frequently asked questions

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What does patent US11546152B2 cover?
A display device connected to a signal source outputting a video signal using an encryption protocol and that transmits the encryption key to the signal source includes: a transmission unit that transmits an own encryption key uniquely set for the display device and an encryption key transmitted from another display device connected to the display device as a lower device to the signal source a…
Who is the assignee on this patent?
Nec Display Solutions Ltd, Sharp Nec Display Solutions Ltd
What technology area does this patent fall under?
Primary CPC classification H04L9/14. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 03 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).