US3727141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigger circuit for a bistable multivibrator
Assignee: Unisys Corp
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Filing: 1971-11-10
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Granted: 1973-04-10
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Expires: 1991-11-10
Abstract
Abstract A set-reset trigger circuit for a bistable multivibrator is provided in which a pair of electrical charging circuits are manually coupleable across a source of electric power in a mutually reverse order with respect to their individual elements to immediately thereby produce a set pulse at an output of one of the charging circuits and to subsequently thereby produce a reset pulse at an output of the other charging circuit.
Inventors
- 👤 J Finlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/125; H03K5/1252; H03K5/1254; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
120 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit having a first output terminal; a second electrical charging circuit operatively coupled in parallel to said first charging circuit and having a second output terminal; an electrical resistance circuit operatively coupled in parallel to said first and said second charging circuits; and a control member operatively coupled in series with said first and said second charging circuits and with said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at the first output terminal of said first charging circuit and a subsequent reset pulse at the second output terminal of said second charging circuit.
Claim 2
Dependent Claim
120 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit having a first output terminal; a second electrical charging circuit operatively coupled in parallel to said first charging circuit and having a second output terminal; an electrical resistance circuit operatively coupled in parallel to said first and said second charging circuits; and a control member operatively coupled in series with said first and said second charging circuits and with said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at the first output terminal of said first charging circuit and a subsequent reset pulse at the second output terminal of said second charging circuit.
Claim 3
Dependent Claim
47 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 1 wherein said first electrical charging circuit comprises a first capacitor and a first resistor electrically connected in seRies, said first capacitor being operatively coupleable to the source of electrical power by said control member.
Claim 4
Dependent Claim
35 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 2 wherein the first output terminal is electrically connected to said first electrical charging circuit between said first capacitor and said first resistor.
Claim 5
Dependent Claim
47 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 3 wherein said second electrical charging circuit comprises a second resistor and a second capacitor electrically connected in series, said second resistor being operatively coupleable to the source of electrical power by said control member.
Claim 6
Dependent Claim
35 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 4 wherein the second output terminal is electrically connected to said second electrical charging circuit between said second resistor and said second capacitor.
Claim 7
Dependent Claim
21 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 5 wherein said control member comprises an electrical switch.
Claim 8
Dependent Claim
218 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit having a first output terminal; a second electrical charging circuit having a second output terminal; a unidirectional electrical current conducting member, said first charging circuit and said second charging circuit being operatively coupled in parallel by said unidirectional current conducting member; an electrical resistance circuit operatively coupled in parallel to said first charging circuit; a first control member operatively coupled in series with said second charging circuit and with said first charging circuit and said resistance circuit by said unidirectional current conducting member and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at the first output terminal of said first charging circuit and a subsequent reset pulse at the second output terminal of said second charging circuit; and a second control member operatively coupled in series with said first charging circuit and said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, said second charging circuit being electrically isolated by said unidirectional current conducting member, thereby producing an immediate set pulse at the first output terminal of said first charging circuit with no subsequent reset pulse being produced at the second output terminal of said second charging circuit.
Claim 9
Dependent Claim
218 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit having a first output terminal; a second electrical charging circuit having a second output terminal; a unidirectional electrical current conducting member, said first charging circuit and said second charging circuit being operatively coupled in parallel by said unidirectional current conducting member; an electrical resistance circuit operatively coupled in parallel to said first charging circuit; a first control member operatively coupled in series with said second charging circuit and with said first charging circuit and said resistance circuit by said unidirectional current conducting member and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at the first output terminal of said first charging circuit and a subsequent reset pulse at the second output terminal of said second charging circuit; and a second control member operatively coupled in series with said first charging circuit and said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, said second charging circuit being electrically isolated by said unidirectional current conducting member, thereby producing an immediate set pulse at the first output terminal of said first charging circuit with no subsequent reset pulse being produced at the second output terminal of said second charging circuit.
Claim 10
Dependent Claim
53 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 7 wherein said first electrical charging circuit comprises a first capacitor and a first resistor electrically connected in series, said capacitor being operatively coupleable to the source of electrical power by said first control member and by said second control member.
Claim 11
Dependent Claim
35 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 8 wherein said first output terminal is electrically connected to said first electrical charging circuit between said first capacitor and said first resistor.
Claim 12
Dependent Claim
48 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 9 wherein said second electrical charging circuit comprises a second resistor and second capacitor electrically connected in series, said second resistor being operatively coupleable to the source of electrical power by said first control member exclusively.
Claim 13
Dependent Claim
35 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 10 wherein the second output terminal is electrically connected to said second electrical charging circuit between said second resistor and said second capacitor.
Claim 14
Dependent Claim
27 words
A set-reset trigger circuit for a bistable multivibrator as defined by claim 11 wherein said first control member and said second control member are both electrical switches.
Claim 15
Dependent Claim
23 words
A set-reset trigger circuit for a bistAble multivibrator as defined by claim 12 wherein said unidirectional current conducting member comprises an electrical diode.
Claim 16
Dependent Claim
183 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit comprised of a first capacitor coupled in series with a first resistor, and a first output terminal electrically connected to said first electrical charging circuit between said first capacitor and said first resistor; a second electrical charging circuit operatively coupled in parallel to said first charging circuit wherein said second electrical charging circuit is comprised of a second resistor electrically connected in series with a second capacitor and a second output terminal electrically connected to said second electrical charging circuit between said second resistor and said second capacitor; an electrical resistance circuit operatively coupled in parallel to said first and said second charging circuits; and a control member operatively coupled in series with said first and said second charging circuits and with said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at said first output terminal of said first charging circuit and a subsequent reset pulse at said second output terminal of said second charging circuit.
Claim 17
Dependent Claim
183 words
A set-reset trigger circuit for a bistable multivibrator comprising: a first electrical charging circuit comprised of a first capacitor coupled in series with a first resistor, and a first output terminal electrically connected to said first electrical charging circuit between said first capacitor and said first resistor; a second electrical charging circuit operatively coupled in parallel to said first charging circuit wherein said second electrical charging circuit is comprised of a second resistor electrically connected in series with a second capacitor and a second output terminal electrically connected to said second electrical charging circuit between said second resistor and said second capacitor; an electrical resistance circuit operatively coupled in parallel to said first and said second charging circuits; and a control member operatively coupled in series with said first and said second charging circuits and with said resistance circuit and actuatable for operatively coupling a source of electrical power across said circuits, thereby producing an immediate set pulse at said first output terminal of said first charging circuit and a subsequent reset pulse at said second output terminal of said second charging circuit.
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |