Keyless Entry System

Abstract: Provided herein a keyless entry system preferablz a passive keyless entrz system for automatic locking or unlocking doors of a vehicle comprises a transceiver mounted in a vehicle, a portable key unit configured to communicate with said transceiver in a passive or an active mode, a LFa antenna linked to a door of the vehicle to facilitate said communication, a sensor associated with the door to activate the LF antenna for sensing the kez unit and an actuator connected to the door to lock or unlock the door based on a command received from the transceiver. Therefore, the system advantageously obviated the requirement of modifying existing door of the vehicle and digital multiplexing of LF antennas. Reference Figure 1.

Patent Information

Application #

Filing Date

31 July 2006

Publication Number

38/2008

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

LARSEN & TOUBRO LIMITED

KIADB Industrial Area, Hebbal-Hootagalli, Mysore-570 018. KARNATAKA, INDIA

Inventors

1. SUMIT CHOUDHARY

KIADB Industrial Area, Hebbal-Hootagalli, Mysore-570 018. KARNATAKA, INDIA

2. YOGESH DESAI

KIADB Industrial Area, Hebbal-Hootagalli, Mysore-570 018.

3. HULLEKERE CHANDRACHAR MANJUNATH

KIADB Industrial Area, Hebbal-Hootagalli, Mysore-570 018.

Specification

Documents

Application Documents

#	Name	Date
1	1353-che-2006-form 5.pdf	2011-09-03
2	1353-che-2006-form 3.pdf	2011-09-03
3	1353-che-2006-form 1.pdf	2011-09-03
4	1353-che-2006-drawings.pdf	2011-09-03
5	1353-che-2006-description(provisional).pdf	2011-09-03
6	1353-che-2006-correspondnece-others.pdf	2011-09-03
7	1353-CHE-2006 FORM-18.pdf	2011-11-28
8	1353-CHE-2006 CORRESPONDENCE OTHERS.pdf	2011-11-28
9	1353-CHE-2006 POWER OF ATTORNEY 06-02-2014.pdf	2014-02-06
10	1353-CHE-2006 FORM-13 06-02-2014.pdf	2014-02-06
11	1353-CHE-2006 CORRESPONDENCE OTHERS 06-02-2014.pdf	2014-02-06
12	OTHERS [20-10-2015(online)].pdf	2015-10-20
13	Examination Report Reply Recieved [20-10-2015(online)].pdf	2015-10-20
14	Description(Complete) [20-10-2015(online)].pdf	2015-10-20
15	Correspondence [20-10-2015(online)].pdf	2015-10-20
16	Claims [20-10-2015(online)].pdf	2015-10-20
17	Abstract [20-10-2015(online)].pdf	2015-10-20
18	1353-CHE-2006_EXAMREPORT.pdf	2016-07-02