US4720630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active optical connector including an electronic circuit board and an optical fiber
Assignee: Hitachi Ltd
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Filing: 1986-04-04
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Granted: 1988-01-19
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Expires: 2006-04-04
Abstract
Abstract An opto-electric transformation connector is provided, which can be used, as if it were an electric connector, without consideration of optical transmission of devices connected therewith, in a connecting system for connecting different devices by means of optical fibers. The connector includes an electronic circuit board, on which not only a light emitting element for transmitting optical signals and a light receiving element for receiving optical signals are disposed, but also a driving circuit for driving the light emitting element and an amplifier circuit for amplifying the light signals received by the light receiving element are mounted.
Inventors
- 👤 Tamio Takeuchi
- 👤 Yasumasa Koakutsu
- 👤 Junichi Shimizu
- 👤 Masao Yano
- 👤 Minoru Ikenoue
- 👤 Seiichi Onoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4249; G02B6/4202; G02B6/4219; G02B6/4236; G02B6/424; G02B6/4245; G02B6/4246; G02B6/4274
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; and a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder.
Claim 2
Dependent Claim
107 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; and a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder.
Claim 3
Dependent Claim
22 words
An optical active connector according to claim 1, wherein said circuit elements are mounted on both surfaces of said electronic circuit board.
Claim 4
Dependent Claim
24 words
An optical active connector according to claim 1, wherein said optical fibers are secured on said fiber holder by means of a caulking ring.
Claim 5
Dependent Claim
30 words
An optical active connector according to claim 1, wherein at least a part of the optical fibers and a part of the fiber holder are covered by a protective cover.
Claim 6
Dependent Claim
122 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; and a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder, said case being provided with a window in a part accommodating said light emitting element.
Claim 7
Dependent Claim
122 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; and a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder, said case being provided with a window in a part accommodating said light emitting element.
Claim 8
Dependent Claim
22 words
An optical active connector according to claim 5, wherein said circuit elements are mounted on both surfaces of said electronic circuit board.
Claim 9
Dependent Claim
24 words
An optical active connector according to Claim 5, wherein said optical fibers are secured on said fiber holder by means of a caulking ring.
Claim 10
Dependent Claim
168 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder, said base being provided with a window in a part accommodating said light emitting element; a protective cover covering a part of the optical fibers, said fiber holder and a part of the case, and being provided with a window in a part corresponding to said window in said case; and a transparent cover inserted between said protecting over and said case.
Claim 11
Dependent Claim
168 words
An optical active connector comprising: an optical fiber constituting a signal transmission line between a plurality of outside electrical devices and having end portions held by a fiber holder; an electronic circuit board, on which a circuit pattern is formed and circuit elements for optical elements are mounted; a terminal block having electric terminals, electrically connected to said electronic circuit board; a light emitting element and a light receiving element electrically connected to said electronic circuit board and optically coupled to said optical fiber; a case accommodating said electronic circuit board, said terminal block, said light emitting element, said light receiving element and said fiber holder, said base being provided with a window in a part accommodating said light emitting element; a protective cover covering a part of the optical fibers, said fiber holder and a part of the case, and being provided with a window in a part corresponding to said window in said case; and a transparent cover inserted between said protecting over and said case.
References Cited (Backward Citations)
US3509353A
Cited
US3727030A
Cited
US3735142A
Cited
US3758782A
Cited
US3809908A
Cited
US3892974A
Cited
US3911270A
Cited
US4346294A
Cited
US4568145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |