US4428078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless audio passenger entertainment system (WAPES)
Assignee: Boeing Co
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Filing: 1982-08-09
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Granted: 1984-01-24
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Expires: 2002-08-09
Abstract
Abstract A wireless aircraft passenger entertainment system utilizing simultaneous transmission of low frequency signals for power supply rectification and radio frequency signals for information demodulation between transmission lines parallel with seat tracks in an aircraft passenger compartment and seat leg mounted pick up loops.
Inventors
- 👤 Chyi J. Kuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:50
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/0015; B64D11/00155; H; H04; H04B; H04B3/00; H04B3/02; H04B3/44; H04B5/00; H04B5/20; H04B5/24; H04B5/70; H04B5/79
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A passenger entertainment system for transmission by simultaneous inductive coupling of receiver power and intelligence information signals to a plurality of seat units disposed on a floor support, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means and power supply means for powering said receiver associated with each of said plurality of seat units; a transmission line comprising a pair of spaced apart conductors coupled to said transmitter means, said pair of spaced apart conductors disposed substantially in the plane of said floor support; a multiturn pick up loop disposed adjacent to said floor support, said multiturn pick up loop coupled to said receiver means and said power supply means; and, wherein said receiver power signal has a frequency of around 20 KH z , and said intelligence information signal has a frequency of around 40 MH z .
Claim 2
Dependent Claim
146 words
A passenger entertainment system for transmission by simultaneous inductive coupling of receiver power and intelligence information signals to a plurality of seat units disposed on a floor support, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means and power supply means for powering said receiver associated with each of said plurality of seat units; a transmission line comprising a pair of spaced apart conductors coupled to said transmitter means, said pair of spaced apart conductors disposed substantially in the plane of said floor support; a multiturn pick up loop disposed adjacent to said floor support, said multiturn pick up loop coupled to said receiver means and said power supply means; and, wherein said receiver power signal has a frequency of around 20 KH z , and said intelligence information signal has a frequency of around 40 MH z .
Claim 3
Dependent Claim
149 words
A wireless audio passenger entertainment system (WAPES) for transmission by simultaneous inductive coupling of receiver power and intelligence information signals to a plurality of seat units disposed on a floor support, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means and power supply means for powering said receiver associated with each of said plurality of seat units; a transmission line comprising a pair of spaced apart conductors coupled to said transmitter means, said pair of spaced apart conductors disposed substantially in the plane of said floor support; a multiturn pick up loop disposed adjacent to said floor support, said multiturn pick up loop coupled to said receiver means and said power supply means; and wherein said receiver power signal has a frequency of around 20 KH z , and said intelligence information signal has a frequency of around 40 MH z .
Claim 4
Dependent Claim
149 words
A wireless audio passenger entertainment system (WAPES) for transmission by simultaneous inductive coupling of receiver power and intelligence information signals to a plurality of seat units disposed on a floor support, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means and power supply means for powering said receiver associated with each of said plurality of seat units; a transmission line comprising a pair of spaced apart conductors coupled to said transmitter means, said pair of spaced apart conductors disposed substantially in the plane of said floor support; a multiturn pick up loop disposed adjacent to said floor support, said multiturn pick up loop coupled to said receiver means and said power supply means; and wherein said receiver power signal has a frequency of around 20 KH z , and said intelligence information signal has a frequency of around 40 MH z .
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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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |