US4811025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive antenna system
Assignee: Toyota Motor Corp
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Filing: 1985-12-04
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Granted: 1989-03-07
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Expires: 2005-12-04
Abstract
Abstract The present invention provides a diversity reception type automotive antenna system comprising a pole type antenna as a main antenna and a high-frequency pickup device as a sub-antenna. The high-frequency pickup is mounted on a connection between adjacent vehicle portions and functions to detect surface high-frequency currents induced on the vehicle body by radio or other waves which flow on the connection. The high-frequency pickup can readily be installed on the vehicle body without any externally projecting portion which would otherwise damage the aesthetic design of the vehicle body.
Inventors
- 👤 Junzo Ohe
- 👤 Hiroshi Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:59
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/325; H01Q1/3275; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0805; H04B7/0814
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
An automotive antenna system comprising: a pole type antenna mounted on the vehicle body at a first location; and high-frequency pickup means mounted on the vehicle body at a second location, connecting adjacent vehicle portions and spaced apart from said first location, said high-frequency pickup means being provided for detecting surface high-frequency currents induced on the vehicle body by radio or other waves flowing on said second location, said pole antenna and high-frequency pickup means comprising a space diversity reception type antenna unit.
Claim 2
Dependent Claim
83 words
An automotive antenna system comprising: a pole type antenna mounted on the vehicle body at a first location; and high-frequency pickup means mounted on the vehicle body at a second location, connecting adjacent vehicle portions and spaced apart from said first location, said high-frequency pickup means being provided for detecting surface high-frequency currents induced on the vehicle body by radio or other waves flowing on said second location, said pole antenna and high-frequency pickup means comprising a space diversity reception type antenna unit.
Claim 3
Dependent Claim
49 words
An automotive antenna system as defined in claim 1 wherein said pole antenna is mounted on the rearward portion of the vehicle body and wherein said high-frequency pickup means is mounted on one of the front pillars of the vehicle body at the side opposite to said pole antenna.
Claim 4
Dependent Claim
60 words
An automotive antenna system as defined in claim 2 wherein said high-frequency pickup includes a casing of electrically conductive material and a loop antenna disposed within said casing, said casing having an opening formed therein through which a portion of said loop antenna is externally exposed, the exposed portion of said loop antenna being located facing said one front pillar.
Claim 5
Dependent Claim
42 words
An automotive antenna system as defined in claim 1 wherein said pole antenna is mounted on one of the front pillars of the vehicle body and wherein said high-frequency pickup is mounted on one of the trunk hinges of the vehicle body.
Claim 6
Dependent Claim
59 words
An automotive antenna system as defined in claim 4 wherein said high-frequency pickup is mounted on the trunk hinge along the length thereof at the side of said trunk hinge faced to the trunk room and wherein said high-frequency pickup includes a loop antenna disposed therein and having a length extending parallel to the length of said trunk hinge.
References Cited (Backward Citations)
US3717876A
Cited
US4679052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |