User identifying vehicle control and security device
Transmitter for remote control system for door locks Patent #: 5252966
ApplicationNo. 529046 filed on 09/15/1995
US Classes:340/539.3, Including power saving340/313, Answer back340/314, Noncorrespondence alarm (e.g., if acknowledgement is incorrect)340/825.69, Radio link341/175, With code display at transmitter341/176Transmitter for remote control signal
ExaminersPrimary: Crosland, Donnie L.
International ClassG08B 001/08
AbstractA security system having a two way wireless keypad which operates in a particular manner for improved operation. The keypad processes information to effectively reduce communications between the control panel and the keypad. The keypad selectively activates and deactivates a transmitter and receiver arrangement for power conservation reasons. The system provides confirmation of communications between the keypad and the control panel to increase the reliability of the system.
Field of SearchInterrogator-responder
Selection from a plurality of sensed conditions
With particular coupling link
Noncorrespondence alarm (e.g., if acknowledgement is incorrect)
CODE GENERATOR OR TRANSMITTER
With code display at transmitter
Transmitter for remote control signal