IP Library Granted Patent US 7,886,356
Granted Patent B2
US 7,886,356 · App. 11/694,226 · Granted Feb 8, 2011

Removing malicious code in media

Assignee: Verizon Patent and Licensing Inc.
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Quick Facts
Patent No.
US 7,886,356
App. No.
11/694,226
Granted
Feb 8, 2011
Kind
B2
Abstract

A method may include receiving untrusted digital media; converting the untrusted digital media into an analog signal; converting the analog signal into trusted digital media; and storing the trusted digital media.

Claims (57)

1. A method comprising:

receiving untrusted digital media in a trusted network device;

converting the untrusted digital media received in the trusted network device into an analog signal;

converting the analog signal, converted from the untrusted digital media, into trusted digital media; and

storing the trusted digital media.

2. The method of claim 1 , further comprising:

decoding the untrusted digital media, wherein converting the untrusted digital media includes converting the decoded untrusted digital media into the analog signal.

3. The method of claim 2 , further comprising:

encoding the trusted digital media, wherein storing the trusted digital media includes storing the encoded trusted digital media.

4. The method of claim 1 ,

wherein receiving the untrusted digital media comprises:

receiving digital media from an untrusted network, and

detecting the received digital media as untrusted; and

wherein storing the trusted digital media comprises storing the trusted digital media in a trusted network.

5. The method of claim 1 , wherein the untrusted digital media includes video media.

6. The method of claim 1 , wherein converting the untrusted digital media into an analog signal comprises simulating the conversion of the untrusted digital media into an analog signal.

7. A method comprising:

receiving untrusted digital media in a trusted network from an untrusted network;

cross-coding the untrusted digital media into trusted digital media, wherein cross-coding includes altering least-significant bits in the untrusted digital media; and

storing the trusted digital media in a trusted network.

8. The method of claim 7 , wherein altering the least-significant bits includes introducing random bits into the untrusted media and wherein cross-coding further comprises:

decoding the untrusted digital media into decoded digital media; and

encoding the decoded digital media into the trusted digital media.

9. The method of claim 8 , wherein cross-coding further comprises:

converting the decoded digital media into an analog signal; and

converting the analog signal into re-digitized digital media,

wherein encoding the decoded digital media into the trusted digital media includes encoding the re-digitized digital media into the trusted digital media.

10. The method of claim 9 , wherein the untrusted digital media includes video media.

11. The method of claim 7 , wherein the untrusted digital media is audio media or video media, the method further comprising removing malicious code from the audio media or the video media while maintaining the usability of the audio media or the video media.

12. The method of claim 10 , wherein converting the decoded digital media into an analog signal comprises simulating the conversion of the decoded digital media into an analog signal.

13. A device comprising:

a transceiver to receive untrusted digital media in a trusted network from an untrusted network;

a decoder to decode the received untrusted digital media into uncompressed decoded digital media;

an encoder to receive the uncompressed decoded digital media from the decoder and to encode the uncompressed decoded digital media into trusted digital media; and

storage to store the trusted digital media in a trusted network.

14. The device of claim 13 , further comprising:

a digital-to-analog converter to convert the uncompressed decoded digital media into an analog signal; and

an analog-to-digital converter to convert the analog signal into re-digitized digital media,

wherein the encoder encodes the re-digitized digital media into the trusted digital media.

15. The device of claim 14 , wherein the untrusted digital media is or video media.

16. The device of claim 13 , wherein the untrusted digital media includes malicious code or a hidden message.

17. The device of claim 13 , wherein the transceiver is configured to receive digital media, the device further comprising a processor to determine when the received digital media is trusted media or untrusted media.

18. The device of claim 17 , further comprising a simulator to simulate the conversion of the decoded digital media into the analog signal.

19. A method comprising:

receiving untrusted video media in a trusted network from an untrusted network;

receiving a request for the received untrusted video media;

retrieving the received untrusted video media;

decoding the retrieved untrusted video media to form decoded digital video media;

encoding the decoded digital video media to form trusted digital video media;

storing the trusted digital video media in the trusted network device; and

delivering the trusted digital video media in response to the request for the received untrusted video media.

20. The method of claim 19 , further comprising:

converting the decoded digital video media into an analog signal; and

converting the analog signal into re-digitized digital video media, wherein encoding the decoded digital video media includes encoding the re-digitized digital video media.

21. The method of claim 20 , wherein the analog signal includes component analog video signals.

22. The method of claim 19 , wherein the untrusted video media includes malicious code or a hidden message.

23. The method of claim 20 , further comprising simulating the conversion of the decoded video media into the analog signal and simulating the conversion of the analog signal into the re-digitized digital video media.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2009
From: VERIZON SERVICES CORP.
To: VERIZON PATENT AND LICENSING INC.
Reel/Frame 023235/0251 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2007
From: FLOWERS, JAMES; HETZ, HARRY ALLEN
To: VERIZON SERVICES CORP.
Reel/Frame 019093/0857 →
Continuity (1)
Related Publication 20080238742A1 · Oct 2, 2008