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Class Information
Number: 330/68
Name: Amplifiers > Involving structure other than that of transformers per se > With shielding means
Description: Subject matter wherein the structure is some means for shielding at least part of the amplifier from external electric or magnetic fields, or such structure to protect parts of the device from undesired electric or magnetic fields originating in another part of the device, or such structure to prevent the amplifier or a part thereof from emanating undesired electric or magnetic fields.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7259625 |
High Q monolithic inductors for use in differential circuits |
Aug. 21, 2007 |
| 7133705 |
Portable power amplifier |
Nov. 7, 2006 |
| 7068521 |
Semiconductor device |
Jun. 27, 2006 |
| 6624703 |
Terminal arrangement for an electrical device |
Sep. 23, 2003 |
| 6624692 |
Radio frequency amplifier with a waveguide filter for isolating amplifying elements |
Sep. 23, 2003 |
| 6611170 |
Angular rate amplifier with noise shield technology |
Aug. 26, 2003 |
| 6473314 |
RF power amplifier assembly employing multi-layer RF blocking filter |
Oct. 29, 2002 |
| 6160453 |
High-frequency power amplifier |
Dec. 12, 2000 |
| 6144260 |
Amplifier |
Nov. 7, 2000 |
| 6133787 |
Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit |
Oct. 17, 2000 |
| 6118672 |
Tuner structure and cable modem tuner using the same |
Sep. 12, 2000 |
| 6040741 |
Preamplifier for amplifying signal voltages from a signal source with high source impedance |
Mar. 21, 2000 |
| 6040739 |
Waveguide to microstrip backshort with external spring compression |
Mar. 21, 2000 |
| 6011700 |
Shielding case |
Jan. 4, 2000 |
| 5990736 |
High frequency amplifier with a guard circuit and a radio wave transmission apparatus including the same |
Nov. 23, 1999 |
| 5831476 |
Voltage-tuned millimeter-wave amplifier and method for tuning |
Nov. 3, 1998 |
| 5814761 |
Passive EMI dissipation apparatus and method |
Sep. 29, 1998 |
| 5412340 |
Shield structure for use in microwave circuit device |
May. 2, 1995 |
| 5352991 |
Power amplifier assembly |
Oct. 4, 1994 |
| 5274340 |
Microwave multistage amplifier |
Dec. 28, 1993 |
| 5087888 |
Light weight power amplifier assembled with no hand soldering or screws |
Feb. 11, 1992 |
| 5072193 |
Wire shielding for RF circuit boards and amplifiers |
Dec. 10, 1991 |
| 4963833 |
High powered amplifier and heat sinking apparatus |
Oct. 16, 1990 |
| 4751471 |
Amplifying circuit particularly adapted for amplifying a biopotential input signal |
Jun. 14, 1988 |
| 4695678 |
Electronic device carrier |
Sep. 22, 1987 |
| 4679002 |
Electromagnetically shielded narrow band electroencephalographic amplifier |
Jul. 7, 1987 |
| 4625178 |
Feedforward gain block with mirror image error amplifier |
Nov. 25, 1986 |
| 4585999 |
Radiofrequency amplifier based on a dc superconducting quantum interference device |
Apr. 29, 1986 |
| 4412183 |
AC Resistor attenuator and associated amplifier circuits |
Oct. 25, 1983 |
| 4051444 |
Amplifier structure for low-level voltage measurements |
Sep. 27, 1977 |
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