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Class Information
Number: 455/228
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Responsive to an input signal of particular predetermined frequency > Responsive to specified modulation (e.g., call alarm, conelrad)
Description: Subject matter including means for indicating a predetermined modulation in the carrier.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7599422 |
Adjustable dual-band link |
Oct. 6, 2009 |
| 7466959 |
Apparatus and method for IF switching in a dual-tuner, dual-IF, HD radio and FM/AM radio receiver |
Dec. 16, 2008 |
| 7450629 |
Adjustable dual-band link |
Nov. 11, 2008 |
| 7450917 |
Power saving transmitter of mobile communication terminal |
Nov. 11, 2008 |
| 7409461 |
Dynamic file-based routing in a broadband communications system |
Aug. 5, 2008 |
| 7113741 |
Optimized method of transmitting multimedia content |
Sep. 26, 2006 |
| 7110720 |
Local area internet radio receiver/transmitter |
Sep. 19, 2006 |
| 7061386 |
Air freshener dispenser equipped with an indicator circuit for indicating an incoming call on a nearby cellular telephone |
Jun. 13, 2006 |
| 7046975 |
Method and system for blind detection of modulation type |
May. 16, 2006 |
| 6868331 |
Method for outputting traffic information in a motor vehicle |
Mar. 15, 2005 |
| 6765486 |
Portable alarm system that interfaces with an individual's personal radio |
Jul. 20, 2004 |
| 6400305 |
Wide band radar detector with three-sweep input stage |
Jun. 4, 2002 |
| 6204761 |
Weather alert system |
Mar. 20, 2001 |
| 6157815 |
Method and apparatus for providing broadcast messages in a communications network |
Dec. 5, 2000 |
| 6115588 |
Radio selective calling receiver having infrared data transmission |
Sep. 5, 2000 |
| 6112075 |
Method of communicating emergency warnings through an existing cellular communication network, and system for communicating such warnings |
Aug. 29, 2000 |
| 6072406 |
Traffic light control apparatus for emergency vehicles |
Jun. 6, 2000 |
| 6069580 |
Multi-conversion radar detector having increased tuning range and self-calibrating function |
May. 30, 2000 |
| 6057765 |
Non-linear junction detector |
May. 2, 2000 |
| 6031467 |
Method in a selective call radio for ensuring reception of advertisement messages |
Feb. 29, 2000 |
| 6021321 |
Selectively called wireless receiver with plural character set storage unit |
Feb. 1, 2000 |
| 5929774 |
Combination pager, organizer and radio |
Jul. 27, 1999 |
| 5893056 |
Methods and apparatus for generating noise signals from speech signals |
Apr. 6, 1999 |
| 5749050 |
Automatic emergency alarm reception apparatus using specific frequency |
May. 5, 1998 |
| 5697060 |
Portable voice message terminal capable of transmitting pre-set text-based information |
Dec. 9, 1997 |
| 5697080 |
Method of and apparatus for selecting station in multiplexed broadcast, and receiving system |
Dec. 9, 1997 |
| 5600673 |
Circuit for discriminating received signal modulation type |
Feb. 4, 1997 |
| 5590407 |
Drive through wireless order taking system |
Dec. 31, 1996 |
| 5577048 |
Method of detecting PTY burst signal |
Nov. 19, 1996 |
| 5513385 |
Reception apparatus, signal reproducing apparatus using reception apparatus and control method thereof |
Apr. 30, 1996 |
| 5448774 |
Intermittent operation receiver |
Sep. 5, 1995 |
| 5438689 |
Radio receiver for a vehicle having improved audibility for speech |
Aug. 1, 1995 |
| 5410749 |
Radio communication device having a microstrip antenna with integral receiver systems |
Apr. 25, 1995 |
| 5305007 |
Wideband radar detector |
Apr. 19, 1994 |
| 5276909 |
Traffic information broadcast system |
Jan. 4, 1994 |
| 5268689 |
Multi-band microwave detector |
Dec. 7, 1993 |
| 5247700 |
Cellular telephone with pager |
Sep. 21, 1993 |
| 5241699 |
Electronic surveillance device detector and method using phase angle differences between two received signals |
Aug. 31, 1993 |
| 5181208 |
Computation-conserving traffic data transmission method and apparatus |
Jan. 19, 1993 |
| 5164729 |
Police radar warning receiver with auto-mute function |
Nov. 17, 1992 |
| 5134406 |
Long range police radar warning receiver with multiple array averaging |
Jul. 28, 1992 |
| 5095532 |
Method and apparatus for route-selective reproduction of broadcast traffic announcements |
Mar. 10, 1992 |
| 5079553 |
Long range police radar warning receiver |
Jan. 7, 1992 |
| 5077829 |
Radio communication apparatus in which a particular call can be surely informed to a possessor of the apparatus |
Dec. 31, 1991 |
| 5060300 |
Receiver switchable between network supply mode and power-conserving battery supply mode |
Oct. 22, 1991 |
| 5054120 |
Receiver for personal radio paging service |
Oct. 1, 1991 |
| 5049885 |
Long range police radar warning receiver |
Sep. 17, 1991 |
| 5049884 |
Battery powered police radar warning receiver |
Sep. 17, 1991 |
| 5046127 |
Transmission path tester for broadcasting |
Sep. 3, 1991 |
| 5020143 |
Vehicular radio receiver with stored detour data |
May. 28, 1991 |
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