US6005501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for encoding and decoding information in audio signals
Assignee: VERANCE Corp (DELAWARE CORPORATION)
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Filing: 1998-05-26
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Granted: 1999-12-21
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Expires: 2018-05-26
Abstract
Abstract A method and apparatus encodes and decodes machine readable signals in audio signals for producing humanly perceived audio transmissions. The encoding device includes circuitry for identifying portions of the audio signal having relatively low energy in a given band and relatively high energy in a band proximally below the given band. The machine readable signals are then inserted into the identified portions of the audio signal. According to another embodiment, the machine readable signals are encoded as a spread-spectrum signal which is added to the original audio signal. The spread-spectrum signal is scaled using a unique technique referred to as Common Mode Scaling.
Inventors
- 👤 Jack Wolosewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:50
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/28; H04H20/30; H04H20/31
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
85 words
A decoder for decoding digital information encoded onto an analog signal, comprising: means for receiving said analog signal; means for detecting said encoded digital information from said analog signal and generating decoded digital information therefrom, said decoded digital information identifying a product available for purchase; means for storing said decoded digital information; means for selecting digital information from said storing means representing a product desired to be purchased; and transmission means for transmitting said selected digital information to a predetermined vendor of said desired product.
Claim 2
Dependent Claim
85 words
A decoder for decoding digital information encoded onto an analog signal, comprising: means for receiving said analog signal; means for detecting said encoded digital information from said analog signal and generating decoded digital information therefrom, said decoded digital information identifying a product available for purchase; means for storing said decoded digital information; means for selecting digital information from said storing means representing a product desired to be purchased; and transmission means for transmitting said selected digital information to a predetermined vendor of said desired product.
Claim 3
Dependent Claim
28 words
The decoder of claim 1, wherein said analog signal is an audio signal representative of a musical selection, and said digital information includes information identifying said musical selection.
Claim 4
Dependent Claim
22 words
The decoder of claim 1, wherein said receiving means comprises an audio input terminal coupled to a source of said analog signal.
Claim 5
Dependent Claim
11 words
The decoder of claim 3, wherein said source is a tuner.
Claim 6
Dependent Claim
11 words
The decoder of claim 3, wherein said source is a receiver.
Claim 7
Dependent Claim
12 words
The decoder of claim 1, wherein said detecting means comprises a microcomputer.
Claim 8
Dependent Claim
12 words
The decoder of claim 1, wherein said storing means comprises a memory.
Claim 9
Dependent Claim
46 words
The decoder of claim 1, wherein said selecting means comprises a display for displaying information represented by said digital information, and a plurality of function buttons for selecting information to be displayed on said display and selecting displayed information to be transmitted by said transmission means.
Claim 10
Dependent Claim
12 words
The decoder of claim 1, wherein said transmission means comprises a modem.
Claim 11
Dependent Claim
82 words
A decoder for decoding digital information encoded onto an analog signal, comprising: means for receiving said analog signal; means for detecting said encoded digital information from said analog signal and generating decoded digital information therefrom, said decoded digital information identifying the content of said analog signal; means for storing said decoded digital information; means for selecting certain digital information from among digital information stored in said storing means; and transmission means for transmitting said selected digital information to an external storage medium.
Claim 12
Dependent Claim
82 words
A decoder for decoding digital information encoded onto an analog signal, comprising: means for receiving said analog signal; means for detecting said encoded digital information from said analog signal and generating decoded digital information therefrom, said decoded digital information identifying the content of said analog signal; means for storing said decoded digital information; means for selecting certain digital information from among digital information stored in said storing means; and transmission means for transmitting said selected digital information to an external storage medium.
Claim 13
Dependent Claim
28 words
The decoder of claim 10, wherein said analog signal is an audio signal representative of a musical selection, and said digital information includes information identifying said musical selection.
Claim 14
Dependent Claim
22 words
The decoder of claim 10, wherein said receiving means comprises an audio input terminal coupled to a source of said analog signal.
Claim 15
Dependent Claim
11 words
The decoder of claim 12, wherein said source is a tuner.
Claim 16
Dependent Claim
11 words
The decoder of claim 12, wherein said source is a receiver.
Claim 17
Dependent Claim
12 words
The decoder of claim 10, wherein said detecting means comprises a microcomputer.
Claim 18
Dependent Claim
12 words
The decoder of claim 10, wherein said storing means comprises a memory.
Claim 19
Dependent Claim
46 words
The decoder of claim 10, wherein said selecting means comprises a display for displaying information represented by said digital information, and a plurality of function buttons for selecting information to be displayed on said display and selecting displayed information to be transmitted by said transmission means.
Claim 20
Dependent Claim
12 words
The decoder of claim 10, wherein said transmission means comprises a modem.
Claim 21
Dependent Claim
14 words
The decoder of claim 11, wherein said external storage medium comprises a computer memory.
Claim 22
Dependent Claim
18 words
The decoder of claim 19, wherein said computer memory is accessed by a vendor of said musical selection.
References Cited (Backward Citations)
US4669089A
Cited
US4789863A
Cited
US5214792A
Cited
US5161251A
Cited
US5319735A
Cited
US5379345A
Cited
US5497372A
Cited
US5404377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-20 | 2003-06-21 | 2003-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-20 | 2007-06-21 | 2007-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-20 | 2011-06-21 | 2011-12-21 | $7700.00 | Window Closed / Lapsed |