US6041295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comparing CODEC input/output to adjust psycho-acoustic parameters
Assignee: Rateze Remote Mgmt LLC
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Filing: 1996-04-10
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Granted: 2000-03-21
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Expires: 2016-04-10
Abstract
Abstract An adjustable CODEC receives a signal and compresses a received audio signal based on a psycho-acoustic compression system. The psycho-acoustic compression system includes several psycho-acoustic parameters which may be adjusted by the user to optimize the compression system for a specific application, transmission medium, or end user, for example. The compression and the adjustment of compression parameters may occur simultaneously in real time without interruption of the compressed signal. Additionally, the parameters may be adjusted in smart groups of a plurality of parameters that are, for example, sympathetic or are often adjusted together. An additional signal may also be combined with the compressed signal and the resultant combined signal may be transmitted over a single transmission path. For example, the additional signal may be multiplexed into the compressed data stream for TDMA transmission. Additionally, the parameters selected at a local, user-adjusted CODEC may be transmitted to a plurality of remote CODEC for remote use.
Inventors
- 👤 Larry W. Hinderks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:21
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/66; H04B1/665
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
143 words
An adjustable CODEC for compression and decompression of signals including: an input for receiving an audio signal; a parameter input unit cooperatively connected to an encoder for inputting and adjusting at least one parameter level of a plurality of pscho-acoustic parameter levels, said encoder containing a compression unit for compressing said signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a first compressed digital bit stream; a decoder containing a decompression unit for decompressing a received compressed digital data bit stream to a decompressed signal; an output connected to the decoder for outputting said decompressed signal; and a comparing device for comparing the responses of said audio signal and said decompressed digital bit stream; whereby the comparison provided by the comparing device may be the basis for adjusting said parameter level of said plurality of psycho-acoustic parameter levels.
Claim 2
Dependent Claim
143 words
An adjustable CODEC for compression and decompression of signals including: an input for receiving an audio signal; a parameter input unit cooperatively connected to an encoder for inputting and adjusting at least one parameter level of a plurality of pscho-acoustic parameter levels, said encoder containing a compression unit for compressing said signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a first compressed digital bit stream; a decoder containing a decompression unit for decompressing a received compressed digital data bit stream to a decompressed signal; an output connected to the decoder for outputting said decompressed signal; and a comparing device for comparing the responses of said audio signal and said decompressed digital bit stream; whereby the comparison provided by the comparing device may be the basis for adjusting said parameter level of said plurality of psycho-acoustic parameter levels.
Claim 3
Dependent Claim
26 words
The adjustable CODEC of claim 1 wherein said compression unit performs said compression in real time and said decompression unit performs said decompression in real time.
Claim 4
Dependent Claim
22 words
The adjustable CODEC of claim 1 wherein at least one psycho-acoustic parameter is adjusted while said compression unit is performing said compression.
Claim 5
Dependent Claim
21 words
The adjustable CODEC of claim 1 wherein said psycho-acoustic parameters are adjusted in smart groups of a plurality of psycho-acoustic parameters.
Claim 6
Dependent Claim
30 words
The adjustable CODEC of claim 1 wherein said input unit further modifies the set of available psycho-acoustic parameters to alter the number of psycho-acoustic parameters used in said compression unit.
Claim 7
Dependent Claim
30 words
The adjustable CODEC of claim 1 wherein said input unit comprises at least one of a computer, a visual user interface, a keyboard, a keypad, a mouse, and a knob.
Claim 8
Dependent Claim
14 words
The adjustable CODEC of claim 1 wherein said responses include at least frequency responses.
Claim 9
Dependent Claim
26 words
The adjustable CODEC of claim 1 wherein at least one of said parameter levels of said plurality of psycho-acoustic parameters is transmitted to a remote CODEC.
Claim 10
Dependent Claim
13 words
The adjustable CODEC of claim 1 further comprising a digital loopback control unit.
Claim 11
Dependent Claim
32 words
The adjustable CODEC of claim 1 further including at least one digital interface module connected to said encoder for converting said compressed data bit stream into at least one predetermined digital format.
Claim 12
Dependent Claim
26 words
The adjustable CODEC of claim 10 wherein said compression unit performs said compression in real time and said decompression unit performs said decompression in real time.
Claim 13
Dependent Claim
22 words
The adjustable CODEC of claim 10 wherein at least one psycho-acoustic parameter is adjusted while said compression unit is performing said compression.
Claim 14
Dependent Claim
21 words
The adjustable CODEC of claim 10 wherein said psycho-acoustic parameters are adjusted in smart groups of a plurality of psycho-acoustic parameters.
Claim 15
Dependent Claim
30 words
The adjustable CODEC of claim 10 wherein said input unit further modifies the set of available psycho-acoustic parameters to alter the number of psycho-acoustic parameters used in said compression unit.
Claim 16
Dependent Claim
30 words
The adjustable CODEC of claim 10 wherein said input unit comprises at least one of a computer, a visual user interface, a keyboard, a keypad, a mouse, and a knob.
Claim 17
Dependent Claim
15 words
The adjustable CODEC of claim 10 wherein said said characteristics include at least frequency characteristics.
Claim 18
Dependent Claim
26 words
The adjustable CODEC of claim 10 wherein at least one of said parameter levels of said plurality of psycho-acoustic parameters is transmitted to a remote CODEC.
Claim 19
Dependent Claim
23 words
The adjustable CODEC of claim 10 wherein said auxiliary signal comprises a plurality of ancillary bit streams multiplexed to form said auxiliary signal.
Claim 20
Dependent Claim
35 words
The adjustable CODEC of claim 10 wherein said decompressed auxiliary signal comprises said plurality of ancillary bit streams and further comprising a demultiplexor to demultiplex said plurality of ancillary bit streams into individual bit streams.
Claim 21
Dependent Claim
32 words
The adjustable CODEC of claim 10 further including at least one digital interface module connected to said encoder for converting said compressed data bit stream into at least one predetermined digital format.
Claim 22
Dependent Claim
13 words
The adjustable CODEC of claim 10 further comprising a digital loopback control unit.
Claim 23
Dependent Claim
182 words
An adjustable CODEC for compression and decompression of signals including: a first input for receiving a first signal; an auxiliary input for receiving an auxiliary signal; a parameter input unit cooperatively connected to an encoder for inputting and adjusting at least one parameter level of a plurality of psycho-acoustic parameter levels, said encoder containing a compression unit for compressing said first signal and said auxiliary signal and compressing at least said first signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a compressed digital bit stream; a decoder containing a decompression unit for decompressing said compressed digital bit stream to form at least a decompressed first signal and a decompressed auxiliary signal; an output connected to the decoder for outputting said decompressed first signal; an auxiliary output connected to the decoder for outputting said decompressed auxiliary signal; and a comparing device for comparing characteristics of said first signal and said decompressed first signal whereby the comparison provided by the comparing device may be the basis for adjusting said parameter level of said plurality of psycho-acoustic parameter levels.
Claim 24
Dependent Claim
182 words
An adjustable CODEC for compression and decompression of signals including: a first input for receiving a first signal; an auxiliary input for receiving an auxiliary signal; a parameter input unit cooperatively connected to an encoder for inputting and adjusting at least one parameter level of a plurality of psycho-acoustic parameter levels, said encoder containing a compression unit for compressing said first signal and said auxiliary signal and compressing at least said first signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a compressed digital bit stream; a decoder containing a decompression unit for decompressing said compressed digital bit stream to form at least a decompressed first signal and a decompressed auxiliary signal; an output connected to the decoder for outputting said decompressed first signal; an auxiliary output connected to the decoder for outputting said decompressed auxiliary signal; and a comparing device for comparing characteristics of said first signal and said decompressed first signal whereby the comparison provided by the comparing device may be the basis for adjusting said parameter level of said plurality of psycho-acoustic parameter levels.
Claim 25
Independent Claim
99 words
A method of compression and decompression of signals comprising the steps of: receiving an audio signal; inputting at least one parameter level of a plurality of psycho-acoustic parameter levels; compressing said received signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a compressed digital bit stream; decompressing said compressed digital bit stream to form a decompressed signal; outputting said decompressed signal; and comparing the characteristics of said audio signal and said decompressed signal and adjusting an adjustable parameter input unit in order to modify said at least one parameter level based on said comparison.
Claim 26
Independent Claim
99 words
A method of compression and decompression of signals comprising the steps of: receiving an audio signal; inputting at least one parameter level of a plurality of psycho-acoustic parameter levels; compressing said received signal based on said parameter levels of said plurality of psycho-acoustic parameters to form a compressed digital bit stream; decompressing said compressed digital bit stream to form a decompressed signal; outputting said decompressed signal; and comparing the characteristics of said audio signal and said decompressed signal and adjusting an adjustable parameter input unit in order to modify said at least one parameter level based on said comparison.
Claim 27
Dependent Claim
21 words
The method of claim 23 wherein said compression step compresses in real time and said decompression step decompresses in real time.
Claim 28
Dependent Claim
21 words
The method of claim 23 wherein at least one psycho-acoustic parameter is adjusted while said compression unit is performing said compression.
Claim 29
Dependent Claim
20 words
The method of claim 23 wherein said psycho-acoustic parameters are adjusted in smart groups of a plurality of psycho-acoustic parameters.
Claim 30
Dependent Claim
29 words
The method of claim 23 further including the step of modifying the set of available psycho-acoustic parameters to alter the number of psycho-acoustic parameters used in said compression unit.
Claim 31
Dependent Claim
35 words
The method of claim 23 wherein the parameter level of said inputting step is input by at least one of a computer, a visual user interface, a keyboard, a keypad, a mouse, and a knob.
Claim 32
Dependent Claim
13 words
The method of claim 23 wherein said characteristics include at least frequency characteristics.
Claim 33
Dependent Claim
28 words
The method of claim 23 further comprising the step of transmitting at least one of said parameter levels of said plurality of psycho-acoustic parameters to a remote CODEC.
Claim 34
Dependent Claim
23 words
The method of claim 23 further including the step of converting said compressed data bit stream into at least one predetermined digital format.
Claim 35
Dependent Claim
21 words
The method of claim 23 further comprising the step of controlling said compressing step by using a digital loopback control unit.
Claim 36
Dependent Claim
52 words
The method of claim 23 further including the steps of: receiving an auxiliary signal where said compressing step compresses said audio signal and said auxiliary signal and said decompressing step decompresses said digital bit stream to form a decompressed audio signal and a decompressed auxiliary signal; and outputting said decompressed auxiliary signal.
Claim 37
Dependent Claim
21 words
The method of claim 33 wherein said compression step compresses in real time and said decompression step decompresses in real time.
Claim 38
Dependent Claim
21 words
The method of claim 33 wherein at least one psycho-acoustic parameter is adjusted while said compression unit is performing said compression.
Claim 39
Dependent Claim
20 words
The method of claim 33 wherein said psycho-acoustic parameters are adjusted in smart groups of a plurality of psycho-acoustic parameters.
Claim 40
Dependent Claim
29 words
The method of claim 33 further including the step of modifying the set of available psycho-acoustic parameters to alter the number of psycho-acoustic parameters used in said compression unit.
Claim 41
Dependent Claim
35 words
The method of claim 33 wherein the parameter level of said inputting step is input by at least one of a computer, a visual user interface, a keyboard, a keypad, a mouse, and a knob.
Claim 42
Dependent Claim
13 words
The method of claim 33 wherein said characteristics include at least frequency characteristics.
Claim 43
Dependent Claim
28 words
The method of claim 33 further comprising the step of transmitting at least one of said parameter levels of said plurality of psycho-acoustic parameters to a remote CODEC.
Claim 44
Dependent Claim
22 words
The method of claim 33 wherein said auxiliary signal comprises a plurality of ancillary bit streams multiplexed to form said auxiliary signal.
Claim 45
Dependent Claim
31 words
The method of claim 33 wherein said decompressed auxiliary signal comprises said plurality of ancillary bit streams and further comprising demultiplexing said plurality of ancillary bit streams into individual bit streams.
Claim 46
Dependent Claim
23 words
The method of claim 33 further including the step of converting said compressed data bit stream into at least one predetermined digital format.
Claim 47
Dependent Claim
21 words
The method of claim 33 further comprising the step of controlling said compressing step by using a digital loopback control unit.
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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) | 2003-03-21 | 2003-09-20 | 2004-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-21 | 2007-09-20 | 2008-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-21 | 2011-09-20 | 2012-03-21 | $7700.00 | Window Closed / Lapsed |