US4736452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core coupled transmitter/receiver loops for connectorless entertainment systems
Assignee: Boeing Co
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Filing: 1986-09-17
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Granted: 1988-04-05
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Expires: 2006-09-17
Abstract
Abstract A method and apparatus for interconnecting passenger entertainment service units to the aircraft system through connectorless inductive couplers. Couplers are arranged along the seat track as desired without limitation on seat spacing or location.
Inventors
- 👤 James W. Daniels
- 👤 Carl W. Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
H; H04; H04B; H04B5/00; H04B5/20; H04B5/24; H04B5/26; H04B5/266; H02; H02J; H02J50/00; H02J50/10; H02J50/40; H02J50/70
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
A passenger entertainment system for transmission by simultaneous coupling of receiver power and intelligence information signals to a plurality of seat units, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means associated with each of said plurality of seat units; a multi-turn transmitter loop coupled to said transmitter means; a multi-turn pick up loop coupled to said receiver means associated with each of said plurality of seat units; ferrite core transformer means disposed between said multi-turn pick up loop and said multi-turn transmitter loop for transferring said receiver power and intelligence information signals therebetween; said ferrite core transformer means having a receiver core portion associated with each of said multi-turn pick up loops; a U-shaped trough running parallel to the seat tracks of said seat units; and, said U-shaped trough surrounding said ferrite core transformer means.
Claim 2
Dependent Claim
143 words
A passenger entertainment system for transmission by simultaneous coupling of receiver power and intelligence information signals to a plurality of seat units, said system comprising: transmitter means for generating said receiver power and intelligence information signals; receiver means associated with each of said plurality of seat units; a multi-turn transmitter loop coupled to said transmitter means; a multi-turn pick up loop coupled to said receiver means associated with each of said plurality of seat units; ferrite core transformer means disposed between said multi-turn pick up loop and said multi-turn transmitter loop for transferring said receiver power and intelligence information signals therebetween; said ferrite core transformer means having a receiver core portion associated with each of said multi-turn pick up loops; a U-shaped trough running parallel to the seat tracks of said seat units; and, said U-shaped trough surrounding said ferrite core transformer means.
Claim 3
Dependent Claim
18 words
The invention according to claim 1 wherein said ferrite core transformer comprises first and second generally E-shaped cores.
Claim 4
Dependent Claim
23 words
The invention according to claim 1 wherein said ferrite core transformer comprises a first generally E-shaped core and a second generally I-shaped core.
Claim 5
Dependent Claim
53 words
The invention according to claim 1 wherein each of said multi-turn pick up loops is wound about the central leg portion of said first of said generally E-shaped cores, and said transmission line comprises a multi-turn loop disposed along the slots formed by the side leg portions of said second generally E-shaped cores.
References Cited (Backward Citations)
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |