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Class Information
Number: 455/178.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Signal selection based on frequency (e.g., tuning) > With mechanical or electromechanical selection > With plurality of tunable circuits
Description: Subject matter including separate circuits each being adjustable by the operation of manual, mechanical, or electromechanical means (e.g., tuning shaft).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7519339 |
Tuner design and system for lossless interconnect of multiple tuners |
Apr. 14, 2009 |
| 7466959 |
Apparatus and method for IF switching in a dual-tuner, dual-IF, HD radio and FM/AM radio receiver |
Dec. 16, 2008 |
| 7400868 |
Automatic tuning apparatus for filter and communication instrument |
Jul. 15, 2008 |
| 7369827 |
System and method for communicating stored power measurement parameters between devices in a communications system |
May. 6, 2008 |
| 7292831 |
Radio communicate method and system |
Nov. 6, 2007 |
| 7286804 |
Receiver digital-analog converter and tuning circuit |
Oct. 23, 2007 |
| 7280813 |
Variable delay radio receiver |
Oct. 9, 2007 |
| 7174147 |
Bandpass filter with tunable resonator |
Feb. 6, 2007 |
| 7120407 |
Receiver and its tracking adjusting method |
Oct. 10, 2006 |
| 7116954 |
Tunable bandpass filter and method thereof |
Oct. 3, 2006 |
| 7065331 |
Resonator configuration |
Jun. 20, 2006 |
| 6864925 |
Television tuner having less distortion |
Mar. 8, 2005 |
| 6640093 |
Broadcast receiver |
Oct. 28, 2003 |
| 6424824 |
Apparatus for setting the tuning voltage of tunable resonant circuits |
Jul. 23, 2002 |
| 6058296 |
Clutch knob for a clutch mechanism for a radio receiver with tuning device |
May. 2, 2000 |
| 5905948 |
High frequency channel selecting circuit for radio receiver and method of manufacturing tuning circuits therefor |
May. 18, 1999 |
| 5797087 |
Method and apparatus for performing a preset listening operation for a radio broadcast |
Aug. 18, 1998 |
| 5524288 |
Tuning of a radio receiver |
Jun. 4, 1996 |
| 5280639 |
Double super-heterodyne tuner |
Jan. 18, 1994 |
| 5193213 |
FM broadcast band subcarrier receiver |
Mar. 9, 1993 |
| 4703292 |
Tuning circuit apparatus |
Oct. 27, 1987 |
| 4387400 |
Tuning system for a television receiver |
Jun. 7, 1983 |
| 4191924 |
Channel selection apparatus |
Mar. 4, 1980 |
| 4186360 |
Digital channel selecting apparatus |
Jan. 29, 1980 |
| 3949303 |
Time controlled switching arrangement for two timer radio receiver |
Apr. 6, 1976 |
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