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Class Information
Number: 455/217
Name: Telecommunications > Receiver or analog modulated signal frequency converter > With protection circuit for receiver circuit
Description: Subject matter wherein the receiver system is provided with means to protect the entire receiver circuit or elements thereof from damage due to outside electrical influences.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7599674 |
Overload protection for receiver front end |
Oct. 6, 2009 |
| 7567787 |
Apparatus and method of feeding internal calibration signal through electro-static discharge protection circuitry |
Jul. 28, 2009 |
| 7440773 |
Method for protecting user data in a personal digital assistant (PDA) telephone |
Oct. 21, 2008 |
| 7369831 |
Radio wave receive, radio wave reception integrated circuit, wave clock, and repeater |
May. 6, 2008 |
| 7327993 |
Low leakage local oscillator system |
Feb. 5, 2008 |
| 7224949 |
ESD protection circuit for radio frequency input/output terminals in an integrated circuit |
May. 29, 2007 |
| 7212801 |
Electrostatic protection circuit with impedance matching for radio frequency integrated circuits |
May. 1, 2007 |
| 7206605 |
Radio receiver |
Apr. 17, 2007 |
| 7200373 |
Antenna detection and diagnostic system and related method |
Apr. 3, 2007 |
| 7149480 |
Receiver device |
Dec. 12, 2006 |
| 7133653 |
Receiver and composite component having local oscillator components and mixing circuit integrally formed on semiconductor substrate |
Nov. 7, 2006 |
| 7123883 |
Systems and methods that employ a balanced duplexer |
Oct. 17, 2006 |
| 7099647 |
Single chip direct conversion transceiver for reducing DC offset and method of manufacturing the same |
Aug. 29, 2006 |
| 6999739 |
Stacked FET receiver method and apparatus |
Feb. 14, 2006 |
| 6799058 |
Apparatus and method for switching service class in response to generated heat in a GPRS terminal |
Sep. 28, 2004 |
| 6781424 |
Single chip CMOS transmitter/receiver and method of using same |
Aug. 24, 2004 |
| 6754510 |
MEMS-based bypass system for use with a HTS RF receiver |
Jun. 22, 2004 |
| 6571110 |
Cryoelectronic receiver front end for mobile radio systems |
May. 27, 2003 |
| 6556811 |
Transceiver unit |
Apr. 29, 2003 |
| 6553214 |
Active window glass antenna system with automatic overload protection circuit |
Apr. 22, 2003 |
| 6483355 |
Single chip CMOS transmitter/receiver and method of using same |
Nov. 19, 2002 |
| 6400934 |
Method for radio receiver input off-channel and on-channel overload protection |
Jun. 4, 2002 |
| 6374087 |
Selective peak limiter with a circulator having a third branch having band-pass filter, a threshold element and an adapted load in series |
Apr. 16, 2002 |
| 6366766 |
Input protection circuit for a radio frequency |
Apr. 2, 2002 |
| 6272327 |
High power wireless telephone with over-voltage protection |
Aug. 7, 2001 |
| 6263215 |
Cryoelectronically cooled receiver front end for mobile radio systems |
Jul. 17, 2001 |
| 6205340 |
Cryoelectronic receiver front end for mobile radio systems |
Mar. 20, 2001 |
| 6195535 |
High power wireless telephone with over-voltage protection disabling circuit |
Feb. 27, 2001 |
| 6141561 |
Reception circuit for cellular telephone |
Oct. 31, 2000 |
| 6104934 |
Cryoelectronic receiver front end |
Aug. 15, 2000 |
| 6057569 |
Diode limiter device |
May. 2, 2000 |
| 6008738 |
Radio display pager with reduced manually operated keys |
Dec. 28, 1999 |
| 5987335 |
Communication system comprising lightning protection |
Nov. 16, 1999 |
| 5963855 |
Method for extending the RSSI range and radio transceiver operating in accordance with this method |
Oct. 5, 1999 |
| 5930695 |
Radio receiver with amplitude limiter prior to mixer and band limiting filter |
Jul. 27, 1999 |
| 5930692 |
Method and apparatus for increasing receiver immunity to interference |
Jul. 27, 1999 |
| 5878334 |
High temperature superconducting low power receiver protector/clutter automatic gain control for radar receiver |
Mar. 2, 1999 |
| 5722063 |
Method and apparatus for increasing receiver immunity to interference |
Feb. 24, 1998 |
| 5678214 |
RF receiver using if amplifier operative during low level reception |
Oct. 14, 1997 |
| 5515228 |
Portable terminal unit with a dual purpose external connection |
May. 7, 1996 |
| 5229733 |
Amplifier arrangement for protecting the power transistors in case of a short-circuit |
Jul. 20, 1993 |
| 5230096 |
Radio receiver antenna arrangements |
Jul. 20, 1993 |
| 5128636 |
Diode limiter |
Jul. 7, 1992 |
| 4964140 |
Digital differential signal transmission apparatus |
Oct. 16, 1990 |
| 4951051 |
Overload detector for an analog-to-digital converter |
Aug. 21, 1990 |
| 4792990 |
Audio amplifier with programmed volume control |
Dec. 20, 1988 |
| 4718114 |
AC overload protective circuit |
Jan. 5, 1988 |
| 4677519 |
Short-circuit protected mains supply unit, especially for television receivers |
Jun. 30, 1987 |
| 4641365 |
Overpower protection for a radio frequency transceiver |
Feb. 3, 1987 |
| 4635297 |
Overload protector |
Jan. 6, 1987 |
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