Patent US3414430A successfully refreshed from Google Patents.
Patent US4829500A successfully refreshed from Google Patents.
US4829500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable wireless sound reproduction system
Assignee: Individual
•
Filing: 1987-04-23
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Granted: 1989-05-09
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Expires: 2007-04-23
Abstract
Abstract A portable wireless sound reproduction system includes a first portable housing having a sound signal receiving circuit and controls for processing the sound signal into two signals for transmission by two separate sound signal transmitters located in the same housing. A pair of speakers is detachably connected to the first housing and include receivers for receiving the wireless transmission of signals from the transmitters. The two speakers are adapted to be disposed in side-by-relation with the first housing completely overlying and detachably connected to each of the speakers.
Inventors
- 👤 Stuart D. Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:58
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/02; H04R3/00; H04R5/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
176 words
A portable wireless sound reproducing system comprising: first portable housing means; sound signal receiving means disposed in said first portable housing means for receiving sound signals from any suitable source; sound signal control means disposed in said first housing means and connected to said sound signal receiving means for controlling and processing the sound signals received thereby into two separate electrical signals; a pair of electrical signal transmitting means disposed in said first housing means and connected to said control means for wireless transmission of said two separate electrical signals respectively; a pair of second portable housing means detachably connected to said first housing means; receiver means disposed in each of said second portable housing means for receiving the electrical signals transmitted by said pair of transmitting means respectively and speaker means in each of said second portable housing means connected to said receiver means respectively for converting said electrical signals into two audio signals and broadcasting the audio signals wherein said control means in said first housing control the output of the respective speaker means.
Claim 2
Dependent Claim
176 words
A portable wireless sound reproducing system comprising: first portable housing means; sound signal receiving means disposed in said first portable housing means for receiving sound signals from any suitable source; sound signal control means disposed in said first housing means and connected to said sound signal receiving means for controlling and processing the sound signals received thereby into two separate electrical signals; a pair of electrical signal transmitting means disposed in said first housing means and connected to said control means for wireless transmission of said two separate electrical signals respectively; a pair of second portable housing means detachably connected to said first housing means; receiver means disposed in each of said second portable housing means for receiving the electrical signals transmitted by said pair of transmitting means respectively and speaker means in each of said second portable housing means connected to said receiver means respectively for converting said electrical signals into two audio signals and broadcasting the audio signals wherein said control means in said first housing control the output of the respective speaker means.
Claim 3
Dependent Claim
99 words
A portable wireless sound reproduction system as set forth in claim 1 wherein said second portable housing means is comprised of two substantially identical rectilinear housings disposed in side-by-side relation with coplanar upper surfaces, said first portable housing means is comprised of a substantially rectilinear housing having an upper surface with the controls for the system, thereon and having a bottom surface substantially coextensive with the upper surfaces of said pair of second housing means when disposed in side-by-side relation and means for detachably connecting each of said second housing means to the bottom of said first housing means.
References Cited (Backward Citations)
US2923370A
Cited
US3122847A
Cited
FR1337289A
Cited
US4097893A
Cited
GB1151662A
Cited
US3590382A
Cited
AU2597571A
Cited
FR2153359A1
Cited
US3927316A
Cited
US4151470A
Cited
US3943564A
Cited
US4412106A
Cited
US4396941A
Cited
JPS5512577A
Cited
DE2844979A1
Cited
JPS5555700A
Cited
JPS55121748A
Cited
US4221006A
Cited
US4470135A
Cited
US4334315A
Cited
US4450495A
Cited
JPS57202198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |