US7945781B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and systems for inserting watermarks in digital signals
Assignee: Digimarc Corp
•
Filing: 2000-03-30
•
Granted: 2011-05-17
•
Expires: 2020-03-30
Abstract
Abstract The presently claimed invention relates generally to digital watermarking and steganographic encoding. One claim recites a method of encoding a watermark in a digital signal. The method includes generating varying key bits; and encoding the varying watermark key bits in the digital signal as a watermark with reference to at least characteristics of the digital signal. The “digital signal” may represent audio, video or imagery. Another claim recites a system for encoding a watermark in a digital signal. The system includes a processor: i) to map pseudo-random key and processing state information to effect an encode/decode map; and ii) to encode a watermark in a digital signal using the encode/decode map and characteristics of the digital signal. Of course other combinations are provided and claimed as well.
Inventors
- 👤 Geoffrey B. Rhoads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:29
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/14; G06K7/1404; G06K7/1408; G06K7/1417; B; B42; B42D; B42D25/00; G06F; G06F16/00; G06F16/90; G06F16/95; G06F16/955; G06K19/00; G06K19/06; G06K19/06009; G06K19/06037; G06K19/06046; G06K19/08; G06K19/10; G06K19/14; G06K19/18; G06K7/1439; G06K7/1447; 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; G06T1/0064; G06V; G06V30/00; G06V30/40; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07D; G07D7/00; G07D7/003; G07D7/0032; G07D7/0034; G07D7/004; G07F; G07F17/00; G07F17/0014; 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; G11B20/00086; G11B20/00094; G11B20/00115; G11B20/00166; G11B20/00181; G11B20/0021; G11B20/00217; G11B20/00231; G11B20/0071; G11B20/00884; G11B20/00891; 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; H04N1/32154; H04N1/3216; H04N1/32203; H04N1/32208; H04N1/32251; H04N1/32288; H04N1/32352; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2389; H04N21/23892; H04N21/80; H04N21/83; H04N21/835; H04N21/8358; H04N5/00; H04N5/76; H04N5/91; H04N5/913; G06K2019/06215; G06K2019/06253; G06T2201/00; G06T2201/005; G06T2201/0052; H04L; H04L2463/00; H04L2463/103; H04N1/32106; H04N1/32122; H04N2005/91307; H04N2005/91321; H04N2005/91335; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3207; H04N2201/3225; H04N2201/3226; H04N2201/3233; H04N2201/3269; H04N2201/327; H04N2201/3271; H04N2201/3274; H04N2201/328; H04W; H04W24/00
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
40 words
A method of encoding a watermark in a digital signal, the method comprising: generating varying key bits; and encoding the varying key bits in the digital signal as a watermark with reference to at least characteristics of the digital signal.
Claim 2
Independent Claim
40 words
A method of encoding a watermark in a digital signal, the method comprising: generating varying key bits; and encoding the varying key bits in the digital signal as a watermark with reference to at least characteristics of the digital signal.
Claim 3
Dependent Claim
15 words
The method of claim 1 , wherein the digital signal represents audio, imagery or video.
Claim 4
Independent Claim
28 words
A method of steganographically encoding bits in a digital signal, the method comprising: generating varying key bits; and steganographically encoding the digital signal using the varying key bits.
Claim 5
Independent Claim
28 words
A method of steganographically encoding bits in a digital signal, the method comprising: generating varying key bits; and steganographically encoding the digital signal using the varying key bits.
Claim 6
Dependent Claim
15 words
The method of claim 3 , wherein the digital signal represents audio, imagery or video.
Claim 7
Independent Claim
39 words
A method of encoding a watermark in a digital signal, the method comprising: mapping key information to effect an encode/decode map; and encoding the watermark in the digital signal using the encode/decode map and characteristics of the digital signal.
Claim 8
Independent Claim
39 words
A method of encoding a watermark in a digital signal, the method comprising: mapping key information to effect an encode/decode map; and encoding the watermark in the digital signal using the encode/decode map and characteristics of the digital signal.
Claim 9
Dependent Claim
15 words
The method of claim 5 , wherein the digital signal represents audio, imagery or video.
Claim 10
Independent Claim
43 words
A method of generating a noise signal to produce watermark information, the method comprising: generating a noise signal as a function of at least one variable which depends on key and processing state information; and providing the generated noise signal as watermark information.
Claim 11
Independent Claim
43 words
A method of generating a noise signal to produce watermark information, the method comprising: generating a noise signal as a function of at least one variable which depends on key and processing state information; and providing the generated noise signal as watermark information.
Claim 12
Independent Claim
45 words
A system for encoding a watermark in a digital signal, the system comprising: a generator configured to generate a pseudo-random key; and an encoder configured to encode a watermark in the digital signal using: i) the pseudo-random key; and ii) characteristics of the digital signal.
Claim 13
Independent Claim
45 words
A system for encoding a watermark in a digital signal, the system comprising: a generator configured to generate a pseudo-random key; and an encoder configured to encode a watermark in the digital signal using: i) the pseudo-random key; and ii) characteristics of the digital signal.
Claim 14
Dependent Claim
19 words
The system of claim 8 , wherein the generator is selected from a non-linear generator or a scrambling generator.
Claim 15
Dependent Claim
21 words
The system of claim 8 , wherein the characteristics of the digital signal comprise mathematically defined functions of the digital signal.
Claim 16
Dependent Claim
15 words
The system of claim 8 , wherein the digital signal represents audio, imagery or video.
Claim 17
Independent Claim
47 words
A system for encoding a watermark in a digital signal, the system comprising: a processor configured to: map pseudo-random key and processing state information to effect an encode/decode map; and encode a watermark in the digital signal using the encode/decode map and characteristics of the digital signal.
Claim 18
Independent Claim
47 words
A system for encoding a watermark in a digital signal, the system comprising: a processor configured to: map pseudo-random key and processing state information to effect an encode/decode map; and encode a watermark in the digital signal using the encode/decode map and characteristics of the digital signal.
Claim 19
Dependent Claim
30 words
The system of claim 12 , wherein the processor maps the pseudo-random key and processing state information to effect an encode/decode map using a non-linear generator or a scrambling generator.
Claim 20
Dependent Claim
21 words
The system of claim 12 , wherein the characteristics of the digital signal comprise mathematically defined functions of the digital signal.
Claim 21
Dependent Claim
15 words
The system of claim 12 , wherein the digital signal represents audio, imagery or video.
Claim 22
Dependent Claim
43 words
A non-transitory computer readable medium having instructions stored thereon, the instructions comprising: instructions to generate varying key bits; and instructions to encode the varying key bits in a digital signal as a watermark with reference to at least characteristics of the digital signal.
Claim 23
Dependent Claim
43 words
A non-transitory computer readable medium having instructions stored thereon, the instructions comprising: instructions to generate varying key bits; and instructions to encode the varying key bits in a digital signal as a watermark with reference to at least characteristics of the digital signal.
Claim 24
Independent Claim
26 words
A system comprising: a generator configured to generate varying key bits; and an encoder configured to steganographically encode a digital signal using the varying key bits.
Claim 25
Independent Claim
26 words
A system comprising: a generator configured to generate varying key bits; and an encoder configured to steganographically encode a digital signal using the varying key bits.
Claim 26
Dependent Claim
30 words
A tangible computer-readable medium having instructions stored thereon, the instructions comprising: instructions to generate varying key bits; and instructions to steganographically encode a digital signal using the varying key bits.
Claim 27
Dependent Claim
30 words
A tangible computer-readable medium having instructions stored thereon, the instructions comprising: instructions to generate varying key bits; and instructions to steganographically encode a digital signal using the varying key bits.
Claim 28
Dependent Claim
41 words
A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising: instructions to map key information to effect an encode/decode map; and instructions to encode a watermark in a digital signal using the encode/decode map and characteristics of the digital signal.
Claim 29
Dependent Claim
41 words
A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising: instructions to map key information to effect an encode/decode map; and instructions to encode a watermark in a digital signal using the encode/decode map and characteristics of the digital signal.
Claim 30
Independent Claim
40 words
A system comprising: a generator configured to generate a noise signal as a function of at least one variable which depends on key and processing state information; and a provider configured to provide the generated noise signal as watermark information.
Claim 31
Independent Claim
40 words
A system comprising: a generator configured to generate a noise signal as a function of at least one variable which depends on key and processing state information; and a provider configured to provide the generated noise signal as watermark information.
Claim 32
Dependent Claim
44 words
A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising: instructions to generate a noise signal as a function of at least one variable which depends on key and processing state information; and instructions to provide the generated noise signal as watermark information.
Claim 33
Dependent Claim
44 words
A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising: instructions to generate a noise signal as a function of at least one variable which depends on key and processing state information; and instructions to provide the generated noise signal as watermark information.
References Cited (Backward Citations)
US3004104A
Cited
US3845391A
Cited
US3919479A
Cited
US4432096A
Cited
US4238849A
Cited
US4237484A
Cited
US4313197A
Cited
US4425661A
Cited
US4547804A
Cited
US4703476A
Cited
US5101432A
Cited
US4739398A
Cited
GB2196167B
Cited
US4907156A
Cited
US4979210A
Cited
US4807031A
Cited
US5079648A
Cited
US4945412A
Cited
US4855697A
Cited
US5023929A
Cited
US4969041A
Cited
US4908836A
Cited
US5113437A
Cited
US4943973A
Cited
US4972471A
Cited
US5612194A
Cited
US5168147A
Cited
US5396559A
Cited
US5175710A
Cited
US5799111A
Cited
US5319735A
Cited
US5243423A
Cited
US7136503B2
Cited
US5721788A
Cited
US7412074B2
Cited
US5579124A
Cited
US5425100A
Cited
US5379345A
Cited
US5857038A
Cited
US5832119C1
Cited
US7158654B2
Cited
US7044395B1
Cited
US7035427B2
Cited
US7054465B2
Cited
US6983051B1
Cited
US5745604A
Cited
US5748763A
Cited
US5768426A
Cited
US6975746B2
Cited
US7113614B2
Cited
US7711143B2
Cited
US20060251291A1
Cited
US5832119A
Cited
US5841978A
Cited
US5841886A
Cited
US6363159B1
Cited
US5850481C1
Cited
US5850481A
Cited
US7643649B2
Cited
US6353672B1
Cited
US5862260A
Cited
US20050058318A1
Cited
US6542618B1
Cited
US7171016B1
Cited
USRE40919E1
Cited
US6026193A
Cited
US7242790B2
Cited
US7697719B2
Cited
US6404898B1
Cited
US7515733B2
Cited
US6700990B1
Cited
US6330335B1
Cited
US7308110B2
Cited
US7313251B2
Cited
US6266430B1
Cited
US6681029B1
Cited
US6675146B2
Cited
US6654480B2
Cited
US6647130B2
Cited
US6647128B1
Cited
US6611607B1
Cited
US6567533B1
Cited
US6542620B1
Cited
US5499294A
Cited
US7286684B2
Cited
US6959100B2
Cited
US5450490A
Cited
US5764763A
Cited
US5404377A
Cited
US5568570A
Cited
US6778682B2
Cited
US6879701B1
Cited
US7424131B2
Cited
US7248717B2
Cited
US6182218B1
Cited
US5659726A
Cited
US5774452A
Cited
US6718046B2
Cited
US20030219144A1
Cited
US6721440B2
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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