ELECTRONIC DEVICE AND METHOD TO CONTROL OUTPUT THEREOF

• US 20100153743A1
• Filed: 08/24/2009
• Published: 06/17/2010
• Est. Priority Date: 12/11/2008
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: CHO, Kee-yeong, Kim, Hag-do
• Application Number:
  US12/545,921
• Publication Number:
  US 20100153743A1
• Time in Patent Office: Days
• US Class Current: 713/189
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00463 high-bandwidth digital content protection [HDCP]
• CPC Class Codes: G11B 20/00492 wherein content or user data is encrypted
• CPC Class Codes: G11B 20/00543 wherein external data is encrypted, e.g. for secure communication with an external device or for encrypting content on a separate record carrier
• CPC Class Codes: G11B 2020/10537 Audio or video recording
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs

Abstract

An electronic device and a method to control an output thereof are provided. The electronic device includes a controller to control whether to output non-encrypted multimedia data to an external device based on whether the external device is communicatively connected to the electronic device, and an interface to output the non-encrypted multimedia data to the external device under the control of the controller.

Claims

1. An electronic device comprising:

an interface connected to an external device which encrypts non-encrypted multimedia data; and

a controller to control whether to output the non-encrypted multimedia data to the external device through the interface based on whether the external device is connected to the electronic device.

2. The electronic device of claim 1, wherein the controller controls the interface to output the non-encrypted multimedia data to the external device if the external device is connected to the electronic device.

3. The electronic device of claim 1, wherein the controller controls the interface to not output the non-encrypted multimedia data to the external device if the external device is not connected to the electronic device.

4. The electronic device of claim 1, wherein the external device is a mobile device which is connectable to the electronic device and is of a dongle type.

5. The electronic device of claim 1, wherein the controller determines whether the external device is connected to the electronic device based on a voltage level received through the interface.

6. The electronic device of claim 5, wherein the controller authenticates the external device through the interface if the external device is connected to the electronic device and the controller outputs the non-encrypted multimedia data to the external device when the external device is authenticated.

7. The electronic device of claim 1, wherein the external device encrypts the non-encrypted multimedia data received from the interface and transmits the encrypted multimedia data to a receiving device.

8. The electronic device of claim 1, wherein the non-encrypted multimedia data includes at least one of a decompressed HD audio data and a decompressed HD video data.

9. An output control method comprising:

determining whether an external device which encrypts non-encrypted multimedia data is connected to an electronic device; and

controlling whether to output the non-encrypted multimedia data to the external device based on whether the external device is connected to the electronic device.

10. The output control method of claim 9, wherein the controlling controls the non-encrypted multimedia data to be output to the external device if the external device is connected to the electronic device.

11. The output control method of claim 9, wherein the controlling controls the non-encrypted multimedia data to not be output to the external device if the external device is not connected to the electronic device.

12. The output control method of claim 9, wherein the external device is a mobile device which is connectable to the electronic device and is of a dongle type.

13. The output control method of claim 9, wherein the determining comprises:

receiving a voltage level,

wherein the determining determines whether the external device is connected to the electronic device based on the voltage level.

14. The output control method of claim 13, wherein the controlling authenticates the external device if the external device is connected to the electronic device and the controlling controls the non-encrypted data to be output to the external device when the external device is authenticated.

15. The output control method of claim 9, wherein the external device encrypts the non-encrypted multimedia data and transmits the encrypted multimedia data to a receiving device.

16. The output control method of claim 9, wherein the non-encrypted multimedia data includes at least one of a decompressed HD audio data and a decompressed HD video data.

17. A mobile device comprising:

an interface connected to an electronic device which transmits non-encrypted multimedia data; and

a controller to control the non-encrypted multimedia data transmitted from the electronic device to be encrypted and to control the encrypted multimedia data to be transmitted to an external device through the interface.

18. The mobile device of claim 17, wherein the mobile device is of a dongle type which is connectable to the electronic device through the interface.