Patent US5153531A successfully refreshed from Google Patents.
US5153531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for stabilizing oscillation frequency and phase of a high frequency oscillator
Assignee: Panasonic Holdings Corp
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Filing: 1991-10-30
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Granted: 1992-10-06
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Expires: 2011-10-30
Abstract
Abstract An arrangement for stabilizing the oscillation frequency and phase of a high frequency oscillator comprising a shielding case of aluminum formed by die casting and having side walls and a base, a plurality of partition walls integrally formed with the shielding case, a printed circuit board securely mounted on the partition walls, and a high frequency oscillator securely mounted on the printed circuit board. The high frequency osilllator is encompassed with and shielded by the side walls and base of the shielding case, the partition walls, and the printed circuit board.
Inventors
- 👤 Hirotaka Fujisaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:14
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0022; H05K9/0037; H03; H03L; H03L1/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
90 words
An arrangement for stabilizing the oscillation frequency and phase of a high frequency oscillator, which comprises: a shielding case of aluminum formed by die casting and having side walls and a base; a plurality of partition walls integrally formed with said shielding case; a printed circuit board mounted on said partition walls; and a high frequency oscillator mounted on said printed circuit board, said high frequency oscillator being encompassed with and shielded by said side walls and base of said shielding case, said partition walls, and said printed circuit board.
Claim 2
Dependent Claim
90 words
An arrangement for stabilizing the oscillation frequency and phase of a high frequency oscillator, which comprises: a shielding case of aluminum formed by die casting and having side walls and a base; a plurality of partition walls integrally formed with said shielding case; a printed circuit board mounted on said partition walls; and a high frequency oscillator mounted on said printed circuit board, said high frequency oscillator being encompassed with and shielded by said side walls and base of said shielding case, said partition walls, and said printed circuit board.
Claim 3
Dependent Claim
19 words
The arrangement according to claim 1, wherein said partition walls comprise two partition walls generally perpendicular to each other.
Claim 4
Dependent Claim
30 words
The arrangement according to claim 1 further comprising a plurality of mounts integrally formed with said shielding case at respective internal corners thereof for support of said printed circuit board.
Claim 5
Dependent Claim
14 words
The arrangement according to claim 1, wherein said high frequency oscillator comprises a resonator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |