Passive entry sensor system
First Claim
1. A passive entry sensor system for use with a keyless access control system, comprising:
- a sensor comprising an electromagnetic radiation emitter for transmitting a beam of electromagnetic radiation and an electromagnetic radiation detector for detecting the electromagnetic radiation beam, said emitter and detector being located in an optical enclosure of said sensor, wherein at least a portion of said optical enclosure is locatable in a handle such that the sensor can detect at least a partial interruption or other change in transmission of the beam caused by a user actuating the handle to open a door or like structure.
1 Assignment
0 Petitions
Accused Products
Abstract
Passive entry sensor systems and associated sensors are disclosed. The system sensor is locatable in the handle of a door or like structure and can provide an electromagnetic radiation beam transmitted either along the length of the handle between opposite ends thereof or between the handle and the door such that the sensor can detect at least a partial interruption of the beam by a user actuating the handle. The system can include an independent optical locking switch for actuation by a user to lock the door which locking switch comprises a shutter for intercepting the beam so as to flag the sensor. The system can include a power-up switch for actuation by a user to power-up the system, back-up switches for detecting a pull on the handle, indicators for indicating system status to the user, and backlight and ground light lighting.
-
Citations
20 Claims
-
1. A passive entry sensor system for use with a keyless access control system, comprising:
a sensor comprising an electromagnetic radiation emitter for transmitting a beam of electromagnetic radiation and an electromagnetic radiation detector for detecting the electromagnetic radiation beam, said emitter and detector being located in an optical enclosure of said sensor, wherein at least a portion of said optical enclosure is locatable in a handle such that the sensor can detect at least a partial interruption or other change in transmission of the beam caused by a user actuating the handle to open a door or like structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
12. A passive entry sensor system for use in a keyless access system comprising:
-
a sensor for incorporating in a handle, said sensor having an electromagnetic radiation emitter for transmitting a beam of electromagnetic radiation and an electromagnetic radiation detector for detecting the electromagnetic radiation beam, and an independent optical locking switch comprising a shutter for intercepting and changing transmission of the beam, wherein said sensor is locatable in said handle such that the sensor can detect at least a partial interruption or other change in transmission of the beam caused by a user actuating the handle to open the door and such that the sensor can detect at least a partial interruption or other change in transmission of the beam caused by the user actuating the shutter. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. A method of providing keyless access to a door or like structure, the method comprising the steps of:
-
generating a beam of electromagnetic radiation, transmitting said electromagnetic radiation beam along the length of a handle or between the handle and a door, at least partially interrupting the beam by actuating the handle, sensing at least a partial interruption of the beam or other change in transmission of the beam caused by the user actuating the handle, generating a first output signal in response to sensing said change in beam transmission caused by actuating the handle, processing said first output signal to provide an actuation signal, and sending said actuation signal to an access control mechanism to unlock said door or like structure. - View Dependent Claims (20)
-
Specification