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Class Information
Number: 361/171
Name: Electricity: electrical systems and devices > Control circuits for electromagnetic devices > For relays or solenoids > Condition responsive (e.g., external circuit condition) > Code responsive
Description: Subject matter wherein the external circuit condition required to operate the relay or solenoid is the application of the proper code pulses to the control circuit.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7259953 |
Method and apparatus for modular embedded control system |
Aug. 21, 2007 |
| 6724607 |
Driving apparatus of vibration type actuator |
Apr. 20, 2004 |
| 6608548 |
Control device with redundancy for fitting to a lock |
Aug. 19, 2003 |
| 6567255 |
Electromagnetic actuator |
May. 20, 2003 |
| 6259362 |
System for conveying vehicle status information upon exit from a vehicle |
Jul. 10, 2001 |
| 6222441 |
Process and circuit for connecting an actuator to a line |
Apr. 24, 2001 |
| 6169650 |
Single access control system and method |
Jan. 2, 2001 |
| 6111504 |
Electronic equipment security and recovery system |
Aug. 29, 2000 |
| 6108188 |
Electronic locking system with an access-control solenoid |
Aug. 22, 2000 |
| 6100607 |
Safety method and device for full-voltage power supply to a user apparatus only when required, and control assembly comprising such a safety device |
Aug. 8, 2000 |
| 6075356 |
Power supply control unit for a lamp |
Jun. 13, 2000 |
| 6028760 |
Resonant power converter for energizing a coil |
Feb. 22, 2000 |
| 5973411 |
Apparatus for protecting motor vehicle against unauthorized operation |
Oct. 26, 1999 |
| 5905446 |
Electronic key system |
May. 18, 1999 |
| 5872513 |
Garage door opener and wireless keypad transmitter with temporary password feature |
Feb. 16, 1999 |
| 5841363 |
Locking system especially for automobiles |
Nov. 24, 1998 |
| 5781398 |
Dual fault tolerant actuator control system |
Jul. 14, 1998 |
| 5684454 |
Anti-vehicle-thief apparatus |
Nov. 4, 1997 |
| 5673017 |
Remote vehicle starting system |
Sep. 30, 1997 |
| 5617082 |
Electronic access control device utilizing a single microcomputer integrated circuit |
Apr. 1, 1997 |
| 5614883 |
Automotive opto-electric starter interlock |
Mar. 25, 1997 |
| 5530615 |
Method and apparatus for enhancing relay life |
Jun. 25, 1996 |
| 5508569 |
Battery driven equipment having a locking mechanism |
Apr. 16, 1996 |
| 5479151 |
Electromagnetic door lock with on-board programmable access control |
Dec. 26, 1995 |
| 5410444 |
Electronic control system for a locked drawer |
Apr. 25, 1995 |
| 5402303 |
Remotely-powdered and remotely-addressed zero-standby-current energy-accumulating high-power solenoid drivers, particularly for systems that are micropowered |
Mar. 28, 1995 |
| 5397929 |
Integrated outlet for communications and electrical power |
Mar. 14, 1995 |
| 5270900 |
Solenoid response detector |
Dec. 14, 1993 |
| 5252960 |
Secure keyless entry system for automatic garage door operator |
Oct. 12, 1993 |
| 5138986 |
Internal combustion engine starting control to prevent unauthorized starting |
Aug. 18, 1992 |
| 5041810 |
Antitheft device for an automobile |
Aug. 20, 1991 |
| 5021916 |
Theft deterring security system for attachment to powered appliances |
Jun. 4, 1991 |
| 4964014 |
Solenoid valve driver |
Oct. 16, 1990 |
| 4945210 |
Card controlled soldering iron temperature control device |
Jul. 31, 1990 |
| 4928098 |
Method for code protection using an electronic key |
May. 22, 1990 |
| 4918566 |
Electronic control of solenoid operated circuit breakers |
Apr. 17, 1990 |
| 4916333 |
Binary logic level electrical detector namely to prevent the detection of secret codes contained in a memory card |
Apr. 10, 1990 |
| 4896246 |
Electronic lock with energy conservation features |
Jan. 23, 1990 |
| 4888575 |
Device having a modifiable code for protecting against theft of automobile vehicles |
Dec. 19, 1989 |
| 4868409 |
Vehicular anti-theft system |
Sep. 19, 1989 |
| 4809199 |
Keyless access and engine control system |
Feb. 28, 1989 |
| 4796151 |
Ignition system for vehicle |
Jan. 3, 1989 |
| 4788623 |
Key operated mechanism for producing coded signal combinations for selecting a function of a multifunctional device |
Nov. 29, 1988 |
| 4742426 |
Electronic locking apparatus |
May. 3, 1988 |
| 4723121 |
Electronic locking apparatus for motor vehicles |
Feb. 2, 1988 |
| 4697171 |
Electronic lock and key |
Sep. 29, 1987 |
| 4679031 |
Device to facilitate the arming of an alarm system and to provide lock-out protection |
Jul. 7, 1987 |
| 4656850 |
Electric lock |
Apr. 14, 1987 |
| 4654745 |
Electronic access control system for use with conventional switch plates and boxes |
Mar. 31, 1987 |
| 4652860 |
Security installation |
Mar. 24, 1987 |
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