US5555447A
Expired / Lapsed
US
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Method and apparatus for mitigating speech loss in a communication system
Assignee: Google Technology Holdings LLC
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Filing: 1993-05-14
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Granted: 1996-09-10
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Expires: 2013-05-14
Abstract
Abstract A communication system mitigates speech loss due to a delay (D) incurred during communication channel set-up and also accounts for the delay (D). The communication system time-compresses certain speech spoken by a user and buffers this time-compressed speech in a FIFO (827) at least until the communication channel set-up has been completed. Upon channel set-up, the communication system begins transmission of the stored time-compressed speech and transitions to transmission of normal spoken speech when the FIFO (827) storing the time-compressed speech is substantially empty.
Inventors
- 👤 Michael D. Kotzin
- 👤 Gary W. Grube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/04; H04W84/08; H04L; H04L25/00; H04L25/02; H04L25/05; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/44; H04B1/46; H04W4/00; H04W4/06; H04W4/10; H04W76/00; H04W76/40; H04W76/45
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
A method of mitigating speech loss in a communication system, the communication system having a secondary unit incurring a delay to establish communication to a primary unit, the method comprising the steps of: storing speech during at least the delay to produce stored speech; transmitting the stored speech at a second speech rate; and transmitting normal speech at a first speech rate at the end of transmitting the stored speech at the second speech rate, wherein the second speech rate is faster than the first speech rate and the stored speech is pitch-corrected during transmission.
Claim 2
Independent Claim
95 words
A method of mitigating speech loss in a communication system, the communication system having a secondary unit incurring a delay to establish communication to a primary unit, the method comprising the steps of: storing speech during at least the delay to produce stored speech; transmitting the stored speech at a second speech rate; and transmitting normal speech at a first speech rate at the end of transmitting the stored speech at the second speech rate, wherein the second speech rate is faster than the first speech rate and the stored speech is pitch-corrected during transmission.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein the step of storing speech during at least the delay further comprises the step of storing speech in a FIFO buffer during at least the delay.
Claim 4
Dependent Claim
53 words
The method of claim 2 wherein the step of transmitting the normal speech at the first speech rate at the end of transmitting the stored speech at the second speech rate further comprises the step of transmitting the normal speech at the first speech rate when the FIFO buffer has been substantially depleted.
Claim 5
Dependent Claim
33 words
The method of claim 1 wherein the step of transmitting the stored speech at said second rate further comprises the step of controlling the second speech rate by removing periods of silent speech.
Claim 6
Dependent Claim
34 words
The method of claim 1 wherein the step of transmitting the stored speech at said second rate further comprises the step of controlling the second speech rate by time scale modification of the speech.
Claim 7
Independent Claim
103 words
A method of mitigating speech loss in a communication system, the communication system having a secondary unit incurring a channel set-up delay during communication establishment to a primary unit on a communication channel, the method comprising the steps of: storing time-compressed speech during at least the channel set-up delay to produce stored time-compressed speech; transmitting the stored time-compressed speech on the communication channel; and transitioning from transmitting the stored time-compressed speech on the communication channel to transmitting normal speech on the communication channel when none of the stored time-compressed speech remains to be transmitted wherein the stored time-compressed speech is pitch-corrected during transmission.
Claim 8
Independent Claim
103 words
A method of mitigating speech loss in a communication system, the communication system having a secondary unit incurring a channel set-up delay during communication establishment to a primary unit on a communication channel, the method comprising the steps of: storing time-compressed speech during at least the channel set-up delay to produce stored time-compressed speech; transmitting the stored time-compressed speech on the communication channel; and transitioning from transmitting the stored time-compressed speech on the communication channel to transmitting normal speech on the communication channel when none of the stored time-compressed speech remains to be transmitted wherein the stored time-compressed speech is pitch-corrected during transmission.
Claim 9
Dependent Claim
29 words
The method of claim 6 wherein the step of transitioning further comprises the step of transitioning either gradually or abruptly based on a deterministic characteristic of the communication system.
Claim 10
Independent Claim
95 words
An apparatus for use in a communication system, the communication system incurring a delay to establish communication between a primary unit and a secondary unit, the apparatus comprising: means for storing speech during at least the delay to produce stored speech; and means for transmitting the stored speech at a second speech rate and transmitting normal speech at a first speech rate at the end of transmitting the stored speech at the second speech rate, wherein the second speech rate is faster than the first speech rate and the stored speech is pitch-corrected during transmission.
Claim 11
Independent Claim
95 words
An apparatus for use in a communication system, the communication system incurring a delay to establish communication between a primary unit and a secondary unit, the apparatus comprising: means for storing speech during at least the delay to produce stored speech; and means for transmitting the stored speech at a second speech rate and transmitting normal speech at a first speech rate at the end of transmitting the stored speech at the second speech rate, wherein the second speech rate is faster than the first speech rate and the stored speech is pitch-corrected during transmission.
Claim 12
Dependent Claim
33 words
The apparatus of claim 8 wherein the means for storing speech during the delay further comprises means for storing speech in a FIFO buffer during at least the delay incurred during communication establishment.
Claim 13
Dependent Claim
52 words
The apparatus of claim 9 wherein the means for transmitting the normal speech at the first speech rate at the end of transmitting the stored speed at the second speech rate further comprises means for transmitting the normal speech at the first speech rate when the FIFO buffer has been substantially depleted.
Claim 14
Dependent Claim
19 words
The apparatus of claim 8 wherein said apparatus is implemented in either the primary unit or the secondary unit.
Claim 15
Dependent Claim
33 words
The apparatus of claim 7 wherein said means for transmitting the stored speech at the second speech rate further comprises means for controlling the second speech rate by removing periods of silent speech.
Claim 16
Dependent Claim
34 words
The apparatus of claim 7 wherein said means for transmitting the stored speech at the second speech rate further comprises means for controlling the second speech rate by time scale modification of the speech.
Claim 17
Independent Claim
171 words
An apparatus for use in a communication system, the communication system incurring a delay to establish communication between a primary unit and a secondary unit, the apparatus comprising: means for converting input speech having present speech and silent speech into speech samples representing Said present speech and said silent speech; means, having as input said input speech, for determining when speech is present in said input speech; storage means, coupled to an output of said means for converting, for storing said speech samples; an OR gate having as an output said samples representing said present speech when said storage means is substantially empty; a first AND gate, responsive to a clocking signal and said output of said OR gate, for allowing said samples representing said present speech to be clocked into said storage means; and a second AND gate, responsive to a channel assignment signal and said clocking signal, for allowing said samples representing said present speech to be clocked out of said storage means for transmission over a communication channel.
Claim 18
Independent Claim
171 words
An apparatus for use in a communication system, the communication system incurring a delay to establish communication between a primary unit and a secondary unit, the apparatus comprising: means for converting input speech having present speech and silent speech into speech samples representing Said present speech and said silent speech; means, having as input said input speech, for determining when speech is present in said input speech; storage means, coupled to an output of said means for converting, for storing said speech samples; an OR gate having as an output said samples representing said present speech when said storage means is substantially empty; a first AND gate, responsive to a clocking signal and said output of said OR gate, for allowing said samples representing said present speech to be clocked into said storage means; and a second AND gate, responsive to a channel assignment signal and said clocking signal, for allowing said samples representing said present speech to be clocked out of said storage means for transmission over a communication channel.
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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) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |