Patent US5845251A successfully refreshed from Google Patents.
US5845251A
Expired / Lapsed
US
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Method, system and product for modifying the bandwidth of subband encoded audio data
Assignee: Qwest Communications International Inc
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Filing: 1996-12-20
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Granted: 1998-12-01
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Expires: 2016-12-20
Abstract
Abstract A method, system and product are provided for selectively modifying an encoded audio signal. The method includes receiving the encoded audio signal, the encoded audio signal having a first frequency bandwidth, and identifying a delivery point for the encoded audio signal, the delivery point having a second frequency bandwidth. The method also includes selecting a plurality of subbands from the first frequency bandwidth based on the second frequency bandwidth, and modifying the encoded audio signal based on the plurality of subbands selected. The system includes control logic for performing the method. The product includes a storage medium having computer readable programmed instructions for performing the method.
Inventors
- 👤 Eliot M. Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:28
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/00007
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
72 words
A method for selectively modifying an encoded audio signal, the method comprising: receiving the encoded audio signal, the encoded audio signal having a first frequency bandwidth; identifying a delivery point for the encoded audio signal, the delivery point having a second frequency bandwidth; selecting a plurality of subbands from the first frequency bandwidth based on the second frequency bandwidth; and modifying the encoded audio signal based on the plurality of subbands selected.
Claim 2
Independent Claim
72 words
A method for selectively modifying an encoded audio signal, the method comprising: receiving the encoded audio signal, the encoded audio signal having a first frequency bandwidth; identifying a delivery point for the encoded audio signal, the delivery point having a second frequency bandwidth; selecting a plurality of subbands from the first frequency bandwidth based on the second frequency bandwidth; and modifying the encoded audio signal based on the plurality of subbands selected.
Claim 3
Dependent Claim
57 words
The method of claim 1 wherein the second frequency bandwidth is narrower than the first frequency bandwidth, each of the plurality of subbands selected has a frequency outside the second frequency bandwidth, and modifying the encoded audio signal includes eliminating from the encoded audio signal the plurality of subbands selected to create a modified encoded audio signal.
Claim 4
Dependent Claim
41 words
The method of claim 1 wherein the delivery point is a transmission network and modifying the encoded audio signal includes translating a first data format associated with the encoded audio signal to a second data format associated with the transmission network.
Claim 5
Dependent Claim
41 words
The method of claim 1 wherein the delivery point is a playback destination and modifying the encoded audio signal includes translating a first data format associated with the encoded audio signal to a second data format associated with the playback destination.
Claim 6
Dependent Claim
41 words
The method of claim 1 wherein the delivery point is a storage medium and modifying the encoded audio signal includes translating a first data format associated with the encoded audio signal to a second data format associated with the storage medium.
Claim 7
Dependent Claim
39 words
The method of claim 2 wherein the delivery point is a transmission network, the method further comprising translating a first data format associated with the modified encoded audio signal to a second data format associated with the transmission network.
Claim 8
Dependent Claim
39 words
The method of claim 2 wherein the delivery point is a playback destination, the method further comprising translating a first data format associated with the modified encoded audio signal to a second data format associated with the playback destination.
Claim 9
Dependent Claim
39 words
The method of claim 2 wherein the delivery point is a storage medium, the method further comprising translating a first data format associated with the modified encoded audio signal to a second data format associated with the storage medium.
Claim 10
Independent Claim
82 words
A system for selectively modifying an encoded audio signal, the system comprising: a receiver for receiving the encoded audio signal, the encoded audio signal having a first frequency bandwidth; means for identifying a delivery point for the encoded audio signal, the delivery point having a second frequency bandwidth; and control logic operative to select a plurality of subbands from the first frequency bandwidth based on the second frequency bandwidth, and modify the encoded audio signal based on the plurality of subbands selected.
Claim 11
Independent Claim
82 words
A system for selectively modifying an encoded audio signal, the system comprising: a receiver for receiving the encoded audio signal, the encoded audio signal having a first frequency bandwidth; means for identifying a delivery point for the encoded audio signal, the delivery point having a second frequency bandwidth; and control logic operative to select a plurality of subbands from the first frequency bandwidth based on the second frequency bandwidth, and modify the encoded audio signal based on the plurality of subbands selected.
Claim 12
Dependent Claim
64 words
The system of claim 9 wherein the second frequency bandwidth is narrower than the first frequency bandwidth, each of the plurality of subbands selected has a frequency outside the second frequency bandwidth, and to modify the encoded audio signal the control logic is further operative to eliminate from the encoded audio signal the plurality of subbands selected to create a modified encoded audio signal.
Claim 13
Dependent Claim
47 words
The system of claim 9 wherein the delivery point is a transmission network and, to modify the encoded audio signal, the control logic is operative to translate a first data format associated with the encoded audio signal to a second data format associated with the transmission network.
Claim 14
Dependent Claim
47 words
The system of claim 9 wherein the delivery point is a playback destination and, to modify the encoded audio signal, the control logic is operative to translate a first data format associated with the encoded audio signal to a second data format associated with the playback destination.
Claim 15
Dependent Claim
47 words
The system of claim 9 wherein the delivery point is a storage medium and, to modify the encoded audio signal, the control logic is operative to translate a first data format associated with the encoded audio signal to a second data format associated with the storage medium.
Claim 16
Dependent Claim
43 words
The system of claim 10 wherein the delivery point is a transmission network and the control logic is further operative to translate a first data format associated with the modified encoded audio signal to a second data format associated with the transmission network.
Claim 17
Dependent Claim
43 words
The system of claim 10 wherein the delivery point is a playback destination and the control logic is further operative to translate a first data format associated with the modified encoded audio signal to a second data format associated with the playback destination.
Claim 18
Dependent Claim
43 words
The system of claim 10 wherein the delivery point is a storage medium and the control logic is further operative to translate a first data format associated with the modified encoded audio signal to a second data format associated with the storage medium.
Claim 19
Dependent Claim
66 words
A product for selectively modifying an encoded audio signal, the product comprising a storage medium having computer readable programmed instructions recorded thereon, the instructions operative to select a plurality of subbands from a first frequency bandwidth associated with the encoded audio signal based on a second frequency bandwidth associated with a delivery point, and modify the encoded audio signal based on the plurality of subbands selected.
Claim 20
Dependent Claim
66 words
A product for selectively modifying an encoded audio signal, the product comprising a storage medium having computer readable programmed instructions recorded thereon, the instructions operative to select a plurality of subbands from a first frequency bandwidth associated with the encoded audio signal based on a second frequency bandwidth associated with a delivery point, and modify the encoded audio signal based on the plurality of subbands selected.
Claim 21
Dependent Claim
63 words
The product of claim 17 wherein the second frequency bandwidth is narrower than the first frequency bandwidth, each of the plurality of subbands selected has a frequency outside the second frequency bandwidth, and to modify the encoded audio signal the instructions are further operative to eliminate from the encoded audio signal the plurality of subbands selected to create a modified encoded audio signal.
Claim 22
Dependent Claim
46 words
The product of claim 17 wherein the delivery point is a transmission network and, to modify the encoded audio signal, the instructions are operative to translate a first data format associated with the encoded audio signal to a second data format associated with the transmission network.
Claim 23
Dependent Claim
46 words
The product of claim 17 wherein the delivery point is a playback destination and, to modify the encoded audio signal, the instructions are operative to translate a first data format associated with the encoded audio signal to a second data format associated with the playback destination.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-30 | 2002-06-01 | 2002-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-30 | 2006-06-01 | 2006-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-30 | 2010-06-01 | 2010-12-01 | $7700.00 | Window Closed / Lapsed |