Patent US7567686B2 successfully refreshed from Google Patents.
US7567686B2
Expired / Lapsed
US
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Hiding and detecting messages in media signals
Assignee: Digimarc Corp
•
Filing: 2005-10-25
•
Granted: 2009-07-28
•
Expires: 2025-10-25
Abstract
Abstract The present invention relates generally to audio and video signal processing, e.g., audio or video signal encoding and detection. One claim recites a method of analyzing an embedded media signal to extract a message information signal therefrom. The method recites -in combination with other features -utilizing a multi-purpose electronic processor configured for: detecting from an embedded media signal embedded code signals corresponding to registration symbols and variable message information symbols; verifying detection of the embedded code signals coffesponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values. The multi-purpose electronic processor is configured for analyzing a plurality of fragments of the embedded media signal with greater or lesser confidence in an extracted message information signal being obtained by processing more or less fragments of the embedded media signal, respectively. Of course, other combinations and claims are provided as well.
Inventors
- 👤 Geoffrey B. Rhoads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:07
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/14; G06F12/1408; G06Q; G06Q20/00; G06Q20/08; G06Q20/12; G06Q20/123; G06Q20/1235; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/401; G06Q20/4014; G06Q20/40145; G06T; G06T1/00; G06T1/0021; G06T1/005; G06T1/0057; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07D; G07D7/00; G07D7/003; G07D7/0032; G07D7/004; G07F; G07F17/00; G07F17/16; G07F17/26; G07F7/00; G07F7/08; G07F7/086; G07F7/10; G07F7/1008; G07F7/1016; G07F7/12; G10; G10L; G10L19/00; G10L19/018; G11; G11B; G11B20/00; G11B20/00007; G11B20/00086; G11B20/00094; G11B20/00115; G11B20/00166; G11B20/00181; G11B20/0021; G11B20/00884; G11B20/00891; G11B20/10; G11B20/10009; G11B20/10037; G11B20/10527; H; H04; H04B; H04B1/00; H04B1/66; H04B1/665; H04N; H04N1/00; H04N1/00002; H04N1/00005; H04N1/00026; H04N1/00037; H04N1/00071; H04N1/00074; H04N1/00079; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32203; H04N1/32208; H04N1/32251; H04N1/32288; H04N5/00; H04N5/76; H04N5/89; H04N5/90; H04N5/91; H04N5/913; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N9/82; H04N9/8205; G06T2201/00; G06T2201/005; G06T2201/0052; G11B2020/00014; G11B2020/10537; G11B2020/10546; G11B2020/10555; H04N2005/91307; H04N2005/91321; H04N2005/91335; H04N2005/91342; H04N2005/9135; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3207; H04N2201/3225; H04N2201/3226; H04N2201/3233; H04N2201/3269; H04N2201/327; H04N2201/3271; H04N2201/328; H04N9/8047; Y; Y10; Y10S; Y10S283/00; Y10S283/901
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
207 words
A method of analyzing an embedded media signal to extract a message information signal therefrom, wherein the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, the variable message information symbols are associated with the message information signal, wherein embedding of a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols, said method comprising: utilizing a multi-purpose electronic processor configured for: detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the embedded code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is configured for analyzing a plurality of fragments of the embedded media signal with greater or lesser confidence in an extracted message information signal being obtained by processing more or less fragments of the embedded media signal, respectively.
Claim 2
Independent Claim
207 words
A method of analyzing an embedded media signal to extract a message information signal therefrom, wherein the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, the variable message information symbols are associated with the message information signal, wherein embedding of a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols, said method comprising: utilizing a multi-purpose electronic processor configured for: detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the embedded code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is configured for analyzing a plurality of fragments of the embedded media signal with greater or lesser confidence in an extracted message information signal being obtained by processing more or less fragments of the embedded media signal, respectively.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the embedded media signal represents video.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein the embedded media signal represents imagery.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein the embedded media signal represents audio.
Claim 6
Dependent Claim
25 words
A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 4 .
Claim 7
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 4 .
Claim 8
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 1 .
Claim 9
Dependent Claim
32 words
The method of claim 1 in which said multi-purpose electronic processor is configured for detecting embedded code signals corresponding to the registration symbols and variable message information symbols in a time domain.
Claim 10
Dependent Claim
25 words
A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 8 .
Claim 11
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 8 .
Claim 12
Dependent Claim
18 words
The method of claim 1 which further comprising recording the message information signal once detected for future reference.
Claim 13
Dependent Claim
19 words
A machine-readable medium comprising instructions stored thereon, said instructions comprising instructions to execute the method of claim 1 .
Claim 14
Dependent Claim
24 words
programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 1 .
Claim 15
Independent Claim
180 words
A method comprising: obtaining an encoded media signal, wherein the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some sampled fragments of a media signal to thereby represent the registration symbols and variable message information symbols; and utilizing a multi-purpose electronic processor programmed for: detecting from the encoded media signal code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the encoded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the encoded media signal, respectively.
Claim 16
Independent Claim
180 words
A method comprising: obtaining an encoded media signal, wherein the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some sampled fragments of a media signal to thereby represent the registration symbols and variable message information symbols; and utilizing a multi-purpose electronic processor programmed for: detecting from the encoded media signal code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the encoded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the encoded media signal, respectively.
Claim 17
Dependent Claim
12 words
The method of claim 14 wherein the encoded media signal represents video.
Claim 18
Dependent Claim
12 words
The method of claim 14 wherein the encoded media signal represents audio.
Claim 19
Dependent Claim
25 words
A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 16 .
Claim 20
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 16 .
Claim 21
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 14 .
Claim 22
Dependent Claim
32 words
The method of claim 14 in which said multi-purpose electronic processor is configured for detecting embedded code signals corresponding to the registration symbols and variable message information symbols in a time domain.
Claim 23
Dependent Claim
25 words
A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 20 .
Claim 24
Dependent Claim
22 words
A computer readable media comprising instructions stored thereon to cause a multi-purpose electronic processor to perform the acts of claim 20 .
Claim 25
Dependent Claim
19 words
A machine-readable medium comprising instructions stored thereon, said instructions comprising instructions to execute the method of claim 14 .
Claim 26
Dependent Claim
25 words
A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 14 .
Claim 27
Independent Claim
185 words
An apparatus comprising: electronic memory to buffer an embedded media signal, the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, wherein embedding of a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols; and a multi-purpose electronic processor programmed for: detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the embedded code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the embedded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the embedded media signal, respectively.
Claim 28
Independent Claim
185 words
An apparatus comprising: electronic memory to buffer an embedded media signal, the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, wherein embedding of a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols; and a multi-purpose electronic processor programmed for: detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; verifying detection of the embedded code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the embedded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the embedded media signal, respectively.
Claim 29
Dependent Claim
21 words
The apparatus of claim 25 in which said multi-purpose electronic processor is operating to perform at least one function recited therein.
Claim 30
Independent Claim
178 words
An apparatus comprising: electronic memory buffering a media signal, the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some fragments of a media signal to thereby represent the registration symbols and variable message information symbols; and a multi-purpose computer processor programmed for: detecting from the encoded media signal code signals coffesponding to the registration symbols and variable message information symbols; verifying detection of the code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the encoded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the encoded media signal, respectively.
Claim 31
Independent Claim
178 words
An apparatus comprising: electronic memory buffering a media signal, the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some fragments of a media signal to thereby represent the registration symbols and variable message information symbols; and a multi-purpose computer processor programmed for: detecting from the encoded media signal code signals coffesponding to the registration symbols and variable message information symbols; verifying detection of the code signals corresponding to the registration symbols; and verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, said multi-purpose electronic processor is programmed for analyzing a plurality of fragments of the encoded media signal with greater or lesser confidence in detected code signals being obtained by processing more or less fragments of the encoded media signal, respectively.
Claim 32
Dependent Claim
21 words
The apparatus of claim 27 in which said multi-purpose electronic processor is operating to perform at least one function recited therein.
Claim 33
Independent Claim
189 words
An apparatus comprising: means for buffering an embedded media signal, the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, the variable message information symbols correspond to the message information signal, wherein embedding a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols; means for detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; means for verifying detection of the embedded code signals corresponding to the registration symbols; and means for verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, in which analyzing a plurality of fragments of the embedded media signal provides greater or lesser confidence in the extracted message information signal as more or less fragments of the embedded media signal are processed, respectively.
Claim 34
Independent Claim
189 words
An apparatus comprising: means for buffering an embedded media signal, the embedded media signal includes registration symbols and variable message information symbols steganographically embedded therein, in which both the registration symbols and message information symbols are redundantly embedded in the embedded media signal, the variable message information symbols correspond to the message information signal, wherein embedding a media signal comprises changes to data representing at least some sampled fragments of the media signal to thereby represent the registration symbols and variable message information symbols; means for detecting from the embedded media signal embedded code signals corresponding to the registration symbols and variable message information symbols; means for verifying detection of the embedded code signals corresponding to the registration symbols; and means for verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, in which analyzing a plurality of fragments of the embedded media signal provides greater or lesser confidence in the extracted message information signal as more or less fragments of the embedded media signal are processed, respectively.
Claim 35
Independent Claim
172 words
An apparatus comprising: means for buffering a media signal, the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some sampled fragments of a media signal to thereby represent the registration symbols and variable message information symbols; means for detecting from the encoded media signal code signals corresponding to the registration symbols and variable message information symbols; means for verifying detection of the code signals corresponding to the registration symbols; and means for verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, in which analyzing a plurality of fragments of the encoded media signal provides greater or lesser confidence in extracted message information symbols more or less fragments of the encoded media signal are processed, respectively.
Claim 36
Independent Claim
172 words
An apparatus comprising: means for buffering a media signal, the encoded media signal includes registration symbols and variable message information symbols steganographically encoded therein, in which both the registration symbols and variable message information symbols are redundantly encoded in the encoded media signal, the steganographic encoding comprises changes to data representing at least some sampled fragments of a media signal to thereby represent the registration symbols and variable message information symbols; means for detecting from the encoded media signal code signals corresponding to the registration symbols and variable message information symbols; means for verifying detection of the code signals corresponding to the registration symbols; and means for verifying detection of the variable message information symbols by checking correspondence of the values of the variable message information symbols relative to the registration symbols with an expected sequence of values, in which analyzing a plurality of fragments of the encoded media signal provides greater or lesser confidence in extracted message information symbols more or less fragments of the encoded media signal are processed, respectively.
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| 3.5 Years (Year 4) | 2012-07-27 | 2013-01-26 | 2013-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2016-07-27 | 2017-01-26 | 2017-07-28 | $3760.00 | Window Closed / Lapsed |
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