US3911366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver interference suppression techniques and apparatus
Assignee: Individual
•
Filing: 1958-11-13
•
Granted: 1975-10-07
•
Expires: 1978-11-13
Abstract
Abstract 1. A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, first limiting means in a first channel, second limiting means in said first channel, limiting means in the second channel, linear transfer means in said second channel, and means for combining the outputs of the two channels.
Inventors
- 👤 Elie J Baghdady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:43
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/10; H04B1/12; H04B1/123; H03; H03G; H03G11/00; H03G11/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
52 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, first limiting means in a first channel, second limiting means in said first channel, limiting means in the second channel, linear transfer means in said second channel, and means for combining the outputs of the two channels.
Claim 2
Dependent Claim
52 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, first limiting means in a first channel, second limiting means in said first channel, limiting means in the second channel, linear transfer means in said second channel, and means for combining the outputs of the two channels.
Claim 3
Dependent Claim
62 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, first limiting means in a first channel, second limiting means in said first channel, limiting means in the second channel, said first limiting means and said limiting means in the second channel being common to both channels, and means for combining the outputs of the two channels.
Claim 4
Dependent Claim
62 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, first limiting means in a first channel, second limiting means in said first channel, limiting means in the second channel, said first limiting means and said limiting means in the second channel being common to both channels, and means for combining the outputs of the two channels.
Claim 5
Dependent Claim
79 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, a driver for the two channels, limiting means in one channel operating to limit the amplitude of the resultant of the signals, linear transfer means in the other channel, means for maintaining the signal level at the output of the linear transfer channel independent of the signal level at the input of the driver, and means for combining the outputs of the two channels.
Claim 6
Dependent Claim
79 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, a driver for the two channels, limiting means in one channel operating to limit the amplitude of the resultant of the signals, linear transfer means in the other channel, means for maintaining the signal level at the output of the linear transfer channel independent of the signal level at the input of the driver, and means for combining the outputs of the two channels.
Claim 7
Dependent Claim
34 words
A frequency modulation receiver according to claim 3 in which the channel output combining means superimposes the outputs of the channels in phase opposition to cause capture of the weaker of the two signals.
Claim 8
Dependent Claim
32 words
A frequency modulation receiver according to claim 3 in which the channel output combining means superimposes the outputs of the channels in phase opposition to suppress the weaker of the two signals.
Claim 9
Dependent Claim
63 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, limiting means in one channel operating to limit the amplitude of the resultant of the signals, linear transfer means in the other channel, means for driving the two channels at a level independent of receiver input signal level, and means for combining the outputs of the two channels.
Claim 10
Dependent Claim
63 words
A frequency modulation receiver for separating a stronger and a weaker signal comprising two channels, limiting means in one channel operating to limit the amplitude of the resultant of the signals, linear transfer means in the other channel, means for driving the two channels at a level independent of receiver input signal level, and means for combining the outputs of the two channels.
Claim 11
Dependent Claim
34 words
A frequency modulation receiver according to claim 6 in which the channel output combining means superimposes the outputs of the channels in phase opposition to cause capture of the weaker of the two signals.
Claim 12
Dependent Claim
31 words
A frequency modulation receiver according to claim 6 in which the output combining means superimposes the outputs of the channels in phase opposition to suppress the weaker of the two signals.
Claim 13
Dependent Claim
55 words
A frequency modulation receiver for separating a stronger and a weaker signal, comprising two channels, limiting means for driving the two channels at a level independent of receiver input signal level, second limiting means in one of the channels, an amplifier in the other channel, and means for combining the outputs of the two channels.
Claim 14
Dependent Claim
55 words
A frequency modulation receiver for separating a stronger and a weaker signal, comprising two channels, limiting means for driving the two channels at a level independent of receiver input signal level, second limiting means in one of the channels, an amplifier in the other channel, and means for combining the outputs of the two channels.
Claim 15
Dependent Claim
34 words
A frequency modulation receiver according to claim 9 in which the channel output combining meanas superimposes the outputs of the channels in phase opposition to cause capture of the weaker of the two signals.
Claim 16
Dependent Claim
32 words
A frequency modulation receiver according to claim 9 in which the channel output combining means superimposes the outputs of the channels in phase opposition to suppress the weaker of the two signals.
References Cited (Backward Citations)
US1481284A
Cited
US2151739A
Cited
US2388200A
Cited
US2394544A
Cited
US2428265A
Cited
US2586190A
Cited
US2684439A
Cited
US2880269A
Cited
US2761964A
Cited
US2912573A
Cited
US2927997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |