System and apparatus for information display

• US 7,337,325 B2
• Filed: 02/24/2004
• Issued: 02/26/2008
• Est. Priority Date: 02/25/2003
• Status: Active Grant

• Current Assignee: Hisense Visual Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Horiguchi, Takeo, Murai, Shinya, Ikegami, Fumihiko, Yamaguchi, Shogo
• Primary Examiner(s): Peeso; Thomas R.
• Application Number:
  US10/784,735
• Publication Number:
  US 20040230990A1
• Time in Patent Office: 1,463 Days
• Field of Search: 713/182, 713/165, 713/166, 713/168, 713/170
• US Class Current: 713/182
• CPC Class Codes: H04L 2209/80 Wireless
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/12 Applying verification of the received information cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32
• CPC Class Codes: H04L 9/3271 using challenge-response
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 21/63345 by transmitting keys key distribution for secret or secure communication H04L9/08; network support of key management H04L63/06
• CPC Class Codes: H04N 21/63775 for uploading keys, e.g. for a client to communicate its public key to the server key management H04L9/08; network support of key management H04L63/06
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58

Abstract

An apparatus for displaying information received from a communication apparatus includes: a key information producing unit configured to produce key information for authenticating the communication apparatus; a key information display unit for displaying the key information; an authentication information receiving unit for receiving authentication information; an authenticating unit for authenticating the communication apparatus by verifying whether or not the authentication information was formed based upon the key information; and a display information receiving unit for displaying information from the authenticated communication apparatus.

Claims

1. An apparatus for displaying information received from a communication apparatus, comprising:

a key information producing unit configured to produce key information used to authenticate said communication apparatus;

a key information display unit configured to display said key information;

an authentication information receiving unit configured to receive authentication information;

an authenticating unit configured to authenticate said communication apparatus by verifying whether or not said authentication information was formed based upon said key information; and

a display information receiving unit configured to receive display information from said authenticated communication apparatus,

wherein said authenticated communication apparatus has a distribution range of said key information such that said key information displayed on said key information display unit can be viewed, and unless said key information producing unit produces a second key information, said display information receiving unit receives display information from said authenticated communication apparatus without requiring a second authentication.

2. An apparatus for displaying information received from a communication apparatus, comprising:

a key information producing unit configured to produce key information used to authenticate said communication apparatus;

a key information display unit configured to display said key information;

an authentication information receiving unit configured to receive authentication information;

an authenticating unit configured to authenticate said communication apparatus by verifying whether or not said authentication information was formed based upon said key information; and

a display information receiving unit configured to receive display information from said authenticated communication apparatus,

wherein said authenticated communication apparatus has a distribution range of said key information such that said key information displayed on said key information display unit can be viewed, and a communication system utilized in the communication of said authentication information and said display information is different from a communication system utilized in the distribution of said key information.

3. A method used in an information display apparatus for displaying information received from a communication apparatus, comprising:

producing key information used to authenticate said communication apparatus;

distributing said key information;

receiving authentication information for authenticating said communication apparatus;

authenticating said communication apparatus by verifying whether or not said authentication information was formed based upon said key information; and

receiving display information of said authenticated communication apparatus to display information,

wherein said authenticated communication apparatus has a distribution range of said key information such that said outputted key information can be acquired.

4. The method as claimed in claim 3, wherein said distributing includes at least one of displaying an image, emitting a sound, or transmitting by infrared transmission.

5. A system, comprising:

a communication apparatus;

an information display apparatus configured to display information transmitted from said communication apparatus,

said communication apparatus comprising,

a key information input unit configured to input key information outputted by said information display apparatus, and

authentication information producing unit configured to produce authentication information used to authenticate said communication apparatus by employing said key information,

said information display apparatus comprising,

a key information producing unit configured to produce said key information,

a key information output unit configured to output said produced key information,

an authentication information receiving unit configured to receive said authentication information, an authenticating unit configured to authenticate a communication apparatus by verifying whether or not said authentication information was formed based upon said key information, and

a display information receiving unit configured to display information received from said authenticated communication apparatus,

wherein said authenticated communication apparatus has a distribution range of said key information such that said key information outputted by said key information output unit can be received.

6. The system as claimed in claim 5, wherein said information display apparatus further comprises a display information transmitting unit configured to transmit display information to the communication apparatus authenticated by said authenticating unit.

7. The system as claimed in claim 6, wherein said communication apparatus includes an encrypting unit configured to encrypt display information such that said encrypted display information can be decoded by said information display apparatus, and to encrypt display information, and said information display apparatus is configured to encrypt the display information transmitted by said display information transmitting unit such that said encrypted display information can be decoded by said communication apparatus.

8. The system as claimed in claim 5, wherein outputting said key information transmits by way any one of a display image, a sound, and an infrared transmission.

9. The system as claimed in claim 5, wherein said key information output unit is configured to convert said key information into a picture for display by said information display unit, and to superimpose said converted picture on the display information to display a superimposed picture.

10. The system as claimed in claim 9, wherein said key information input unit includes a camera configured to capture an image of the key information outputted by said key information output unit.

11. The system as claimed in claim 5, wherein said communication apparatus includes an encrypting unit configured to encrypt display information such that said encrypted display information can be decoded by said information display apparatus, and to encrypt display information to transmit the encrypted display information.