| |
 |
|
Class Information
Number: 455/307
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Noise or interference elimination > With specific filter structure
Description: Subject matter which offers comparatively little opposition to certain frequencies or direct current while blocking or attenuating other frequencies.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616936 |
Push-to-talk system with enhanced noise reduction |
Nov. 10, 2009 |
| 7616939 |
Receiver and electronic device using the same |
Nov. 10, 2009 |
| 7613439 |
Programmable baseband filters supporting auto-calibration for a mobile digital cellular television environment |
Nov. 3, 2009 |
| 7610029 |
Method for active Gm-C filter gain control |
Oct. 27, 2009 |
| 7610022 |
Filter circuit with negative transconductance |
Oct. 27, 2009 |
| 7610031 |
Error correction in receiver of radio system |
Oct. 27, 2009 |
| 7606339 |
Information handling system including adaptive interference suppression feature and method of operation |
Oct. 20, 2009 |
| 7595687 |
Apparatus and method for reducing EMI generated by a power conversion device |
Sep. 29, 2009 |
| 7590396 |
Multimode communication device with shared signal path programmable filter |
Sep. 15, 2009 |
| 7583948 |
Time constant automatic adjusting circuit, filter circuit system, and method of automatically adjusting time constant |
Sep. 1, 2009 |
| 7583950 |
High linearity tunable bandpass filter |
Sep. 1, 2009 |
| 7583936 |
Circuit with reduced insertion loss and component comprising one such circuit |
Sep. 1, 2009 |
| 7579931 |
Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same |
Aug. 25, 2009 |
| 7565127 |
Signal processing unit |
Jul. 21, 2009 |
| 7561648 |
Frequency error estimation |
Jul. 14, 2009 |
| 7561865 |
System and method for determining a resonant frequency in a communications device |
Jul. 14, 2009 |
| 7561861 |
Tuning circuit |
Jul. 14, 2009 |
| 7558352 |
Apparatus and method for preprocessing of pilot symbols for channel estimation by means of adaptive low-pass filtering |
Jul. 7, 2009 |
| 7555278 |
Unconditionally stable filter |
Jun. 30, 2009 |
| 7551910 |
Translation and filtering techniques for wireless receivers |
Jun. 23, 2009 |
| 7546110 |
Low power highly linear RF downconverter |
Jun. 9, 2009 |
| 7542523 |
Pipeline architecture for multi-slot wireless link processing |
Jun. 2, 2009 |
| 7539470 |
Tracking filter for selecting channel of wideband frequency |
May. 26, 2009 |
| 7519342 |
Tunable tracking filter |
Apr. 14, 2009 |
| 7515895 |
System and method for on-chip filter tuning |
Apr. 7, 2009 |
| 7515662 |
Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same |
Apr. 7, 2009 |
| 7499692 |
Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit |
Mar. 3, 2009 |
| 7483685 |
Method and device for wavelet denoising |
Jan. 27, 2009 |
| 7477885 |
DC offset cancellation circuits and methods |
Jan. 13, 2009 |
| 7471204 |
Receiver architecture for canceling blocking signals |
Dec. 30, 2008 |
| 7471140 |
Circuit device for filtering or impedance matching |
Dec. 30, 2008 |
| 7466973 |
Single conversion tuner |
Dec. 16, 2008 |
| 7466969 |
MIMO receiver, MIMO reception method and wireless communication system |
Dec. 16, 2008 |
| 7456740 |
Detector device |
Nov. 25, 2008 |
| 7454185 |
Wideband I/Q signal generation device |
Nov. 18, 2008 |
| 7443269 |
Method and apparatus for selectively blocking radio frequency (RF) signals in a radio frequency (RF) switching circuit |
Oct. 28, 2008 |
| 7444129 |
Comb-line wireless filter |
Oct. 28, 2008 |
| 7444132 |
Apparatus, and associated method, for facilitating dynamic filtering of a receive signal |
Oct. 28, 2008 |
| 7437139 |
Method and apparatus for calibrating filtering of a transceiver |
Oct. 14, 2008 |
| 7433666 |
Dual receive filter |
Oct. 7, 2008 |
| 7433664 |
System and method for radio signal reconstruction using signal processor |
Oct. 7, 2008 |
| 7433417 |
Receiver with a signal path |
Oct. 7, 2008 |
| 7428262 |
Channel estimation in a rake receiver of a CDMA communication system |
Sep. 23, 2008 |
| 7418251 |
Compact radio frequency harmonic filter using integrated passive device technology |
Aug. 26, 2008 |
| 7415247 |
Method and arrangement for transmitting and receiving RF signals through various radio interfaces of communication systems |
Aug. 19, 2008 |
| 7415065 |
Adaptive filtering in the presence of multipath |
Aug. 19, 2008 |
| 7415264 |
Low noise filter for a wireless receiver |
Aug. 19, 2008 |
| 7405636 |
Passive polyphase filter |
Jul. 29, 2008 |
| 7406304 |
Electronic component with integrated tuning device, allowing the decoding of digital terrestrial or cable television signals |
Jul. 29, 2008 |
| 7398065 |
Programmable sampling band pass filter |
Jul. 8, 2008 |
|
|
|
