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Class Information
Number: 333/177
Name: Wave transmission lines and networks > Coupling networks > Frequency domain filters utilizing only lumped parameters > Transformer coupled
Description: Subject matter which include a mutual inductance link of the lumped type between the input and output of the filter.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4363009 |
L-C Filter with impedance transformers |
Dec. 7, 1982 |
| 4326179 |
Electrical power line transient noise filtering device |
Apr. 20, 1982 |
| 4275368 |
EMC-/EMI-filter module |
Jun. 23, 1981 |
| 4240052 |
Balun filter apparatus |
Dec. 16, 1980 |
| 4229714 |
RF Connector assembly with provision for low frequency isolation and RFI reduction |
Oct. 21, 1980 |
| 4203073 |
Radio receiver blanker gate |
May. 13, 1980 |
| 4203081 |
Passive circuit element for influencing pulses |
May. 13, 1980 |
| 4138654 |
Digitally tuned circuit including switching of bank capacitors between plural tuned circuits |
Feb. 6, 1979 |
| 4118678 |
Coil retaining case |
Oct. 3, 1978 |
| 4112394 |
Method and means of link coupling with separate control of link reactance and coupling coefficient |
Sep. 5, 1978 |
| 4078216 |
Circuit for the parallel coupling of audio frequency central-control transmitting stations in a wave band filter construction |
Mar. 7, 1978 |
| 4063201 |
Printed circuit with inductively coupled printed coil elements and a printed element forming a mutual inductance therewith |
Dec. 13, 1977 |
| 4003005 |
Bidirectional constant impedance low pass/high pass filter circuit |
Jan. 11, 1977 |
| 3996537 |
Noise suppression filter |
Dec. 7, 1976 |
| 3987375 |
Transmission bridge exhibiting reduced distortion |
Oct. 19, 1976 |
| 3956717 |
Hybrid diplexing filter |
May. 11, 1976 |
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