Patent US3066606A successfully refreshed from Google Patents.
Patent US4642588A successfully refreshed from Google Patents.
US4642588A
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Method for adjustment of variable delay line
Assignee: Elmec Corp
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Filing: 1984-05-22
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Granted: 1987-02-10
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Expires: 2004-05-22
Abstract
Abstract This invention aims to provide a method of adjustment for a variable delay line which is provided with two delay line elements of dissimilar delay times and switch means capable of selectively switching from one to the other of the two delay line elements and adapted to enable the delay time to be digitally increased or decreased by the delay time difference produced by the selective switching between the delay time elements. This method allows the delay time to be finely adjusted with high accuracy of the order of 1 to some tens of ps by changing the delay time of either of the two delay line elements which has a smaller delay time than the other.
Inventors
- 👤 Kazuo Kameya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:37
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/34; H03H7/345
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
145 words
A method for the adjustment of a variable delay line, comprising: configuring a variable delay line with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor and the element having the larger delay time comprising an inductance element having a conductor wound in a plurality of turns in the shape of a solenoid and one or more capacitors interconnecting the conductor and the ground; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time.
Claim 2
Independent Claim
145 words
A method for the adjustment of a variable delay line, comprising: configuring a variable delay line with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor and the element having the larger delay time comprising an inductance element having a conductor wound in a plurality of turns in the shape of a solenoid and one or more capacitors interconnecting the conductor and the ground; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time.
Claim 3
Independent Claim
111 words
A method for the adjustment of a variable delay line, comprising: configuring a variable delay line with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time by notching the conductor.
Claim 4
Independent Claim
111 words
A method for the adjustment of a variable delay line, comprising: configuring a variable delay line with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time by notching the conductor.
Claim 5
Independent Claim
167 words
A method for the adjustment of a variable delay line, comprising: configuring a delay line having joined on cascade connection a plurality of variable delay lines as unit blocks, each provided with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor and the element having the larger delay time comprising an inductance element having a conductor wound in a plurality of turns in the shape of a solenoid and one or more capacitors interconnecting the conductor and the ground; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element in each of said delay line blocks which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time.
Claim 6
Independent Claim
167 words
A method for the adjustment of a variable delay line, comprising: configuring a delay line having joined on cascade connection a plurality of variable delay lines as unit blocks, each provided with two delay line elements of dissimilar delay times, the element having the smaller delay time comprising a microstrip line with a conductor and the element having the larger delay time comprising an inductance element having a conductor wound in a plurality of turns in the shape of a solenoid and one or more capacitors interconnecting the conductor and the ground; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element in each of said delay line blocks which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time.
Claim 7
Independent Claim
133 words
A method for the adjustment of a variable delay line, comprising: configuring a delay line having joined on cascade connection a plurality of variable delay lines as unit blocks, each provided with two delay line elements of dissimilar delay times, the element having the smaller delay time being a microstrip line with a conductor; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element in each of said delay line blocks which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time by notching the conductor.
Claim 8
Independent Claim
133 words
A method for the adjustment of a variable delay line, comprising: configuring a delay line having joined on cascade connection a plurality of variable delay lines as unit blocks, each provided with two delay line elements of dissimilar delay times, the element having the smaller delay time being a microstrip line with a conductor; selectively switching from one to the other of said two delay line elements to increase or decrease the delay time by a delay time difference produced by said selective switching between said two delay line elements; and varying the delay time of the delay line element in each of said delay line blocks which has the smaller delay time by selectively varying the effective physical length of the conductor to achieve a desired delay time by notching the conductor.
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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) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |