Patent US3302177A successfully refreshed from Google Patents.
Patent US5230089A successfully refreshed from Google Patents.
US5230089A
Expired / Lapsed
US
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Automated voice operated transmitter control
Assignee: Motorola Solutions Inc
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Filing: 1992-02-03
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Granted: 1993-07-20
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Expires: 2012-02-03
Abstract
Abstract An automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement and adaptable to a dynamic acoustic environment is described. The VOX decides whether it should be operating, automatically selects a threshold condition (70) from a predetermined list according to a average acoustic signal level over a first time period, and provides a VOX PTT signal to activate a radio frequency transmitter (24) when the acoustic signal level, over a second time period that is less than the first time period and exceeds a debounce time (78), exceeds the threshold condition.
Inventors
- 👤 Peter A. Kindinger
- 👤 James C. Knutsen
- 👤 Clinton D. Luckinbill
- 👤 Robert G. Uskali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:22
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/44; H04B1/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
159 words
An automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement, such arrangement being operable with a headset transducer on a predetermined channel and adaptable to a dynamic acoustic environment, comprising in combination: decision means for providing a VOX enable signal automatically when the headset transducer is coupled to a radio frequency transmitter, the operating channel is set to the predetermined channel, and no PTT signal is present; processing means, responsive to said VOX enable signal, for processing a headset transducer signal to provide a threshold condition indicative of said headset transducer signal over a first time period and an activation signal indicative of said headset transducer signal over a second time period where said first time period is greater than said second time period; and comparison means, responsive to said processing means, for determining when said activation signal satisfies said threshold condition to provide a VOX PTT signal for activating the radio frequency transmitter.
Claim 2
Dependent Claim
159 words
An automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement, such arrangement being operable with a headset transducer on a predetermined channel and adaptable to a dynamic acoustic environment, comprising in combination: decision means for providing a VOX enable signal automatically when the headset transducer is coupled to a radio frequency transmitter, the operating channel is set to the predetermined channel, and no PTT signal is present; processing means, responsive to said VOX enable signal, for processing a headset transducer signal to provide a threshold condition indicative of said headset transducer signal over a first time period and an activation signal indicative of said headset transducer signal over a second time period where said first time period is greater than said second time period; and comparison means, responsive to said processing means, for determining when said activation signal satisfies said threshold condition to provide a VOX PTT signal for activating the radio frequency transmitter.
Claim 3
Dependent Claim
28 words
An automated VOX arrangement in accordance with claim 1 wherein said threshold condition includes an activation level, a debounce time period, a release level and a select level.
Claim 4
Dependent Claim
37 words
An automated VOX arrangement in accordance with claim 1 wherein said processing means includes a filter means for filtering said headset transducer signal to provide a filtered version indicative of a amplitude of said headset transducer signal.
Claim 5
Dependent Claim
61 words
An automated VOX arrangement in accordance with claim 3 wherein said processing means further includes a threshold selecting means, responsive to said filtered version, for selecting said threshold condition from a predetermined list of candidate thresholds that include a select level, said selecting said threshold condition being such that said filtered version over said first time period satisfies said select level.
Claim 6
Dependent Claim
26 words
An automated VOX arrangement in accordance with claim 4 wherein said threshold condition further includes an activation level, a debounce time period, and a release level.
Claim 7
Dependent Claim
45 words
An automated VOX arrangement in accordance with claim 5 wherein said comparison means includes a timing means, responsive to said activation signal and said activation level, for providing a VOX PTT signal when said activation signal satisfies said activation level for said debounce time period.
Claim 8
Dependent Claim
37 words
An automated VOX arrangement in accordance with claim 6 wherein said processing means further includes a release means, responsive to said filtered version, for deactivating said radio frequency transmitter when said filtered version satisfies said release level.
Claim 9
Dependent Claim
53 words
An automated VOX arrangement in accordance with claim 1 wherein said decision means includes disabling means for disabling VOX operation when the PTT signal is present and until the earlier occurrence of the operating channel being changed, the headset transducer being recoupled to the radio frequency transmitter, or a On/Off is switched "On".
Claim 10
Dependent Claim
149 words
In an automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement, such arrangement being operable with a headset transducer on a predetermined channel and adaptable to a dynamic acoustic environment, a method comprising the steps of: providing a VOX enable signal automatically when the headset transducer is coupled to a radio frequency transmitter, the operating channel is set to the predetermined channel, and no PTT signal is present; processing, responsive to said VOX enable signal, a headset transducer signal to provide a threshold condition indicative of said headset transducer signal over a first time period and an activation signal indicative of said headset transducer signal over a second time period where said first time period is greater than said second time period; and determining when said activation signal satisfies said threshold condition to provide a VOX PTT signal for activating the radio frequency transmitter.
Claim 11
Dependent Claim
149 words
In an automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement, such arrangement being operable with a headset transducer on a predetermined channel and adaptable to a dynamic acoustic environment, a method comprising the steps of: providing a VOX enable signal automatically when the headset transducer is coupled to a radio frequency transmitter, the operating channel is set to the predetermined channel, and no PTT signal is present; processing, responsive to said VOX enable signal, a headset transducer signal to provide a threshold condition indicative of said headset transducer signal over a first time period and an activation signal indicative of said headset transducer signal over a second time period where said first time period is greater than said second time period; and determining when said activation signal satisfies said threshold condition to provide a VOX PTT signal for activating the radio frequency transmitter.
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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) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |