Vehicle use-locking and unlocking system

• US 4,811,013 A
• Filed: 04/10/1986
• Issued: 03/07/1989
• Est. Priority Date: 10/28/1985
• Status: Expired due to Term

• Current Assignee: Kokusan Kinzoku Kogyo Kabushiki Kaisha
• Original Assignee: Kokusan Kinzoku Kogyo Kabushiki Kaisha
• Inventors: Akutsu, Shouji
• Primary Examiner(s): Caldwell, Sr., John W.
• Assistant Examiner(s): Holloway, III, Edwin C.
• Application Number:
  US06/850,175
• Time in Patent Office: 1,062 Days
• Field of Search: 340/825.3, 340/825.31, 340/825.32, 340/825.62, 340/825.69, 340/825.54, 340/528, 340/542, 340/52 D, 340/56, 340/63, 340/52 R, 340/825.34 , 340/825.72, 70/257, 70/256, 70/278, 180/287
• US Class Current: 340/5.54
• CPC Class Codes: E05B 81/78 as part of a hands-free locking or unlocking operation
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: G07C 9/00682 actuated repeatedly
• CPC Class Codes: Y10T 70/5978 With switch

Abstract

An external controller embodied in a portable card communicates by wireless signal with a controller mounted internally of a vehicle to control locking and unlocking operations of the vehicle doors in response to coincidence between codes respectively stored in the internal vehicle controller and the external controller, and manually entered through door switches mounted externally of the vehicle. Such door opening operation may be performed even with the portable card unintentionally left in the vehicle.

Claims

1. A wireless locking and unlocking system used with a vehicle, said system comprising:

a portable userside controller having userside communication means for establishing wireless communication with said vehicle to transmit a preselected code number and userside memory means for storing said preselected code number corresponding to the vehicle;

a vehicle side controller mounted on said vehicle, including vehicle communication means for receiving said preselected code number transmitted from said userside communication means;

permanent code memory means for storing a predetermined vehicle code number;

a plurality of switch devices mounted externally on the vehicle for manually entering said preselected code number;

vehicle discriminator means connected to said switch devices and responsive to said entry of the preselected code number from one of said plurality of switch devices for discriminating between said switch devices to output an identifying signal representing one of said plurality of the switch devices from which the preselected code number is entered;

vehicle code memory means storing said predetermined vehicle code number for outputting thereof in response to reception of the preselected code number by said vehicle communication means;

first comparator circuit means comparing said predetermined vehicle code number stored in the permanent code memory means and said preselected code number received by the vehicle communication means for outputting a first coincidence signal in response to coincidence between the numbers, second comparator circuit means comparing said predetermined vehicle code number received from said vehicle code memory means and said manually entered preselected code number from said vehicle discriminator means for outputting a second coincidence signal in response to coincidence between the numbers;

gating means for receiving said manually entered preselected number from at least one of said plurality of switch devices, said coincidence signals from said comparator circuit means and said identifying signal from said vehicle discriminator means to output an enabling signal; and

actuator means connected to the gating means for opening said vehicle in response to said enabling signal when there is coincidence between said manually entered preselected code numbers, said transmitted preselected code number and said predetermined vehicle code number, with the userside controller located alternatively inside and outside of said vehicle.

2. The wireless locking and unlocking system of claim 1 wherein said plurality of switch devices comprises:

a door switch mounted externally on an outside door of said vehicle used to manually enter said preselected code number; and

a trunk switch mounted on a trunk of said vehicle used to manually enter said preselected code number.

3. A wireless locking and unlocking system of claim 2 wherein said identifying signal designates either said door switch or said trunk switch from which the manually entered preselected code number originates.

4. The wireless locking and unlocking system of claim 3 wherein said gating means comprises:

a first AND gate receiving said manually entered preselected code number from at least one of said plurality of switch devices;

a second AND gate receiving said coincidence signals from said first and second comparator circuit means and said identifying signal assigned to the trunk switch, from said vehicle discriminator means; and

a third AND gate receiving said identifying signal assigned to said door switch.