Patent US3222455A successfully refreshed from Google Patents.
US3222455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aural stereophonic balance indicator
Assignee: General Electric Co
•
Filing: 1962-05-31
•
Granted: 1965-12-07
•
Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Golik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:12
CPC Classifications
H; H04; H04S; H04S7/00; H04S7/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CIRCUIT FOR AIDING IN INDICATING WHERE THE GAINS OF TWO SEPARATE AUDIO SIGNAL CHANNELS ARE IN BALANCE COMPRISING A FIRST CHANNEL HAVING A FIRST OUTPUT TRANSFORMER, A SECOND CHANNEL HAVING A SECOND OUTPUT TRANSFORMER, EACH OF SAID TRANSFORMERS HAVING A SECONDARY WINDING WITH A PREDETERMINED POLARITY, MEANS ELECTRICALLY CONNECTING AN END OF ONE OF SAID SECONDARY WINDINGS TO AN END OF LIKE POLARITY OF THE OTHER OF SAID SECONDARY WINDINGS, FIRST AND SECOND LOAD IMPEDANCES, AND A SINGLE POLE SINGLE THROW SWITCH CONNECTED SO THAT SAID FIRST AND SECOND LOAD IMPEDANCE ARE RESPECTIVELY CONNECTED IN PARALLEL WITH SAID SECONDARY WINDINGS WHEN SAID SWITCH IS CLOSED AND SAID SECONDARY WINDINGS AND SAID LOAD IMPEDANCES ARE CONNECTED IN SERIES WHEN SAID SWITCH IS OPEN.
Claim 2
Dependent Claim
123 words
A CIRCUIT FOR AIDING IN INDICATING WHERE THE GAINS OF TWO SEPARATE AUDIO SIGNAL CHANNELS ARE IN BALANCE COMPRISING A FIRST CHANNEL HAVING A FIRST OUTPUT TRANSFORMER, A SECOND CHANNEL HAVING A SECOND OUTPUT TRANSFORMER, EACH OF SAID TRANSFORMERS HAVING A SECONDARY WINDING WITH A PREDETERMINED POLARITY, MEANS ELECTRICALLY CONNECTING AN END OF ONE OF SAID SECONDARY WINDINGS TO AN END OF LIKE POLARITY OF THE OTHER OF SAID SECONDARY WINDINGS, FIRST AND SECOND LOAD IMPEDANCES, AND A SINGLE POLE SINGLE THROW SWITCH CONNECTED SO THAT SAID FIRST AND SECOND LOAD IMPEDANCE ARE RESPECTIVELY CONNECTED IN PARALLEL WITH SAID SECONDARY WINDINGS WHEN SAID SWITCH IS CLOSED AND SAID SECONDARY WINDINGS AND SAID LOAD IMPEDANCES ARE CONNECTED IN SERIES WHEN SAID SWITCH IS OPEN.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |