US3202808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog signal multiplier using carrier insertion
Assignee: TDK Micronas GmbH
•
Filing: 1962-01-15
•
Granted: 1965-08-24
•
Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Oliver S Meixell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:00
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN ANALOG SIGNAL MULTIPLIER COMPRISING: (A) A FIRST NORMALLY BALANCED BRIDGE CIRCUIT, (B) MEANS FOR APPLYING AN ALTERNATING CURRENT ACROSS A FIRST DIAGONAL OF SAID FIRST BRIDGE CIRCUIT HAVING A FREQUENCY HIGHER THAN THE HIGHEST FREQUENCY COMPONENT OF THE SIGNALS TO BE MULTIPLIED, (C) MEANS FOR CAUSING A FIRST SAID SIGNALS TO UNBALANCE SAID FIRST BRIDGE CIRCUIT IN CORRESPONDENCE WITH SAID FIRST SIGNAL, (D) A SECOND NORMALLY BALANCED BRIDGE CIRCUIT, (E) MEANS FOR COUKPLING THE SECOND DIAGONAL OF SAID FIRST BRIDGE CIRCUIT TO THE FIRST DIAGONAL OF SAID SECOND BRIDGE CIRCUIT, (F) MEANS FOR CAUSING A SECOND OF SAID SIGNALS TO UNBALANCE SAID SECOND BRIDGE CIRCUIT IN CORRESPONDENCE WITH SAID SECOND SIGNAL, (G) AN OUTPUT CIRCUIT CONNECTED ACROSS THE SECOND DIAGONAL OF SAID SECOND BRIDGE CIRCUT AND (H) MEANS FOR APPLYING SAID ALTERNATING CURRENT ACROSS SAID OUTPUT CIRCUIT.
Claim 2
Dependent Claim
138 words
AN ANALOG SIGNAL MULTIPLIER COMPRISING: (A) A FIRST NORMALLY BALANCED BRIDGE CIRCUIT, (B) MEANS FOR APPLYING AN ALTERNATING CURRENT ACROSS A FIRST DIAGONAL OF SAID FIRST BRIDGE CIRCUIT HAVING A FREQUENCY HIGHER THAN THE HIGHEST FREQUENCY COMPONENT OF THE SIGNALS TO BE MULTIPLIED, (C) MEANS FOR CAUSING A FIRST SAID SIGNALS TO UNBALANCE SAID FIRST BRIDGE CIRCUIT IN CORRESPONDENCE WITH SAID FIRST SIGNAL, (D) A SECOND NORMALLY BALANCED BRIDGE CIRCUIT, (E) MEANS FOR COUKPLING THE SECOND DIAGONAL OF SAID FIRST BRIDGE CIRCUIT TO THE FIRST DIAGONAL OF SAID SECOND BRIDGE CIRCUIT, (F) MEANS FOR CAUSING A SECOND OF SAID SIGNALS TO UNBALANCE SAID SECOND BRIDGE CIRCUIT IN CORRESPONDENCE WITH SAID SECOND SIGNAL, (G) AN OUTPUT CIRCUIT CONNECTED ACROSS THE SECOND DIAGONAL OF SAID SECOND BRIDGE CIRCUT AND (H) MEANS FOR APPLYING SAID ALTERNATING CURRENT ACROSS SAID OUTPUT CIRCUIT.
References Cited (Backward Citations)
US2393708A
Cited
US2921739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |