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Key exchange via portable remote control device

A technology of remote control device, electronic device, applied in the field of encryption technology for copy and display protection

Inactive Publication Date: 2004-08-04
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each of these options requires additional material and manufacturing costs to add the required communication and connectivity equipment

Method used

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  • Key exchange via portable remote control device
  • Key exchange via portable remote control device
  • Key exchange via portable remote control device

Examples

Experimental program
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Embodiment Construction

[0031] Throughout the drawings, the same reference numerals indicate similar or identical features or functions.

[0032] Home automation and all-in-one audio-visual systems have become more convenient to use, extending the functionality of traditional remote controls to include feedback from the device being controlled. Pending US Patent "Remote Control Program Selection by Type," US Serial No. 09 / 282,319, Karen Travato, Dan Pelletier, Paul Rankin, and Jacquelyn Martion, filed March 31, 1999, Patent Attorney Docket No. PHA23,644, filed A remote control device is provided. The program information received from TV, DVD or set-top box is displayed on the remote control device, which is convenient for the user to select from available programs, or presents information about the program currently being watched, which is incorporated herein by reference. Most existing consumer electronic devices contain a two-way communication device, typically an infrared transceiver, for communic...

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PUM

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Abstract

The communications means that are commonly provided for the remote control of electronic components are utilized to effect an exchange of parameters to facilitate a cryptographic key exchange. The bi-directional remote control transceivers, typically infrared transceivers, that are commonly used to communicate commands from the remote control device and to communicate feedback to the remote control device are configured to communicate parameters between a pair of consumer devices that are controllable by the remote control device. In a preferred embodiment of this invention the remote control device contains the control means to effect the transfer of these parameters between the consumer devices.

Description

technical field [0001] The present invention relates to the field of consumer electronics, and more particularly to encryption techniques for copy and display protection of copyright-retaining material. Background technique [0002] Digital records have a unique property: copies of the recorded material are of the same quality as the original material. Therefore, implementing copy protection is particularly important for the protection of digitally recorded copyrighted material. Many protection schemes have been developed or proposed based on secure linking between electronic devices. These solutions are generally dependent on manufacturers of electronic devices adhering to adopted standards, making material protection for a large number of products uneconomical to implement. For example, a set-top box may transmit a received broadcast to a receiving device, such as a VCR, television, in an encrypted format that can only be deciphered by the intended receiving device. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04N5/44H04N5/765H04N5/775H04N5/913H04Q9/00H04Q9/02
CPCH04L9/0841H04N5/765H04N2005/91364H04N2005/4407H04N5/913H04N5/775G06Q20/3672H04N5/4403H04N21/42204H04N21/42225H04N21/4367H04N21/41265H04L9/16
Inventor M·A·埃普斯坦
Owner KONINK PHILIPS ELECTRONICS NV