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Class Information
Number: 340/10.3
Name: Communications: electrical > Selective > Interrogation response > Interrogation signal detail
Description: wherein an interrogation signal having designated characteristics is sent from the source controller.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6960985 |
Adaptation of the transmission power of an electromagnetic transponder reader |
Nov. 1, 2005 |
| 6958677 |
Object location monitoring system |
Oct. 25, 2005 |
| 6958678 |
Electronic identification system with forward error correction system |
Oct. 25, 2005 |
| 6954496 |
Method for transmitting data from an interrogating device to portable objects |
Oct. 11, 2005 |
| 6950009 |
Dual mode transmitter/receiver and decoder for RF transponder units |
Sep. 27, 2005 |
| 6946951 |
System and method for interrogating electronic labels |
Sep. 20, 2005 |
| 6930589 |
Method and system for tracking items using a distributed infrastructure |
Aug. 16, 2005 |
| 6911899 |
Method and device for remote identification |
Jun. 28, 2005 |
| 6894624 |
Passive transponder identification and credit-card type transponder |
May. 17, 2005 |
| 6891475 |
Low-power passive transponder |
May. 10, 2005 |
| 6876294 |
Transponder identification system |
Apr. 5, 2005 |
| 6867687 |
Sideband diversity reader for electronic identification system |
Mar. 15, 2005 |
| 6836208 |
Contactless data transmission system and method for contactless data transmission |
Dec. 28, 2004 |
| 6831562 |
Object identification system with adaptive transceivers and methods of operation |
Dec. 14, 2004 |
| 6828902 |
Wireless data input to RFID reader |
Dec. 7, 2004 |
| 6819221 |
Method of determining a time value representing at least a part of the communication time interval of a transponder with a communication device |
Nov. 16, 2004 |
| 6819223 |
Transponder system with acknowledgements associated with respective transponders |
Nov. 16, 2004 |
| 6819246 |
Method and apparatus for converting electromagnetic energy of objects |
Nov. 16, 2004 |
| 6799051 |
Identification system for mobile transceivers |
Sep. 28, 2004 |
| 6791451 |
System and method for improving the security of storage of firearms and other objects, and for aiding the recovery of such if removed from storage |
Sep. 14, 2004 |
| 6784789 |
Method and apparatus for verifying RFID tags |
Aug. 31, 2004 |
| 6784787 |
Identification system |
Aug. 31, 2004 |
| 6774766 |
Method for efficiently querying and identifying multiple items on a communication channel |
Aug. 10, 2004 |
| 6765484 |
Method and apparatus for supplying commands to a tag |
Jul. 20, 2004 |
| 6747567 |
Remote controlled electronic apparatus and remote control method thereof |
Jun. 8, 2004 |
| 6731199 |
Non-contact communication system |
May. 4, 2004 |
| 6724297 |
Multiple read method and system for a set of tags bearing distinct ID codes |
Apr. 20, 2004 |
| 6714121 |
RFID material tracking method and apparatus |
Mar. 30, 2004 |
| 6707375 |
Keyless entry apparatus capable of selectively controlling only member to be controlled closest to user |
Mar. 16, 2004 |
| 6707376 |
Pulsed power method for increased read range for a radio frequency identification reader |
Mar. 16, 2004 |
| 6686829 |
Electronic identification system with forward error correction system |
Feb. 3, 2004 |
| 6686830 |
Homodyne I/Q transceiver for a spread spectrum reader |
Feb. 3, 2004 |
| 6687293 |
Method, system and apparatus for calibrating a pulse position modulation (PPM) decoder to a PPM signal |
Feb. 3, 2004 |
| 6683527 |
Security system |
Jan. 27, 2004 |
| 6661336 |
Enhanced identification system |
Dec. 9, 2003 |
| 6650229 |
Electromagnetic transponder read terminal operating in very close coupling |
Nov. 18, 2003 |
| 6650227 |
Reader for a radio frequency identification system having automatic tuning capability |
Nov. 18, 2003 |
| 6650230 |
Modulated backscatter wireless communication system having an extended range |
Nov. 18, 2003 |
| 6633226 |
Frequency hopping spread spectrum passive acoustic wave identification device |
Oct. 14, 2003 |
| 6611198 |
Electronic reader for reading a special characteristic of an object |
Aug. 26, 2003 |
| 6611673 |
Radio frequency-controlled telecommunication device |
Aug. 26, 2003 |
| 6608995 |
Detection circuit for proximity IC card device |
Aug. 19, 2003 |
| 6603391 |
Phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator |
Aug. 5, 2003 |
| 6583717 |
Transponder system with acknowledgements associated with respective transponders |
Jun. 24, 2003 |
| 6580358 |
Dual mode transmitter-receiver and decoder for RF transponder tags |
Jun. 17, 2003 |
| 6570491 |
Associating a hand control unit |
May. 27, 2003 |
| 6552649 |
Vehicle control system |
Apr. 22, 2003 |
| 6549115 |
Vehicle security system with active and passage remote actuation |
Apr. 15, 2003 |
| 6535109 |
System and method for communicating with multiple transponders |
Mar. 18, 2003 |
| 6531957 |
Dual mode transmitter-receiver and decoder for RF transponder tags |
Mar. 11, 2003 |
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