Remote control system, in particular for locking and unlocking the doors of motor vehicles with two axially offset light emitters

• US 5,266,946 A
• Filed: 02/05/1991
• Issued: 11/30/1993
• Est. Priority Date: 02/09/1990
• Status: Expired due to Fees

• Current Assignee: Valeo Neiman
• Original Assignee: Valeo Neiman
• Inventors: Rydel, Charles
• Primary Examiner(s): Yusko, Donald J.
• Assistant Examiner(s): GIUST, JOHN
• Application Number:
  US07/650,757
• Time in Patent Office: 1,029 Days
• Field of Search: 340/825.72, 340/782, 340/815.03, 340/815.20, 313/112, 313/113, 313/499, 313/500, 313/512, 357/17, 357/19, 357/21, 307/311, 250/221, 250/205, 250/215, 250/239, 250/552, 250/553, 250/551, 250/577, 250/578.1, 437/127, 437/905, 437/906, 362/296, 362/300, 362/297, 362/800, 359/366, 359/732, 359/710, 180/287
• US Class Current: 340/12.22
• CPC Class Codes: G07C 2009/00198 the keyless data carrier having more than one limited data transmission ranges
• CPC Class Codes: G07C 2009/00785 by light
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks
• CPC Class Codes: H01L 25/0756 Stacked arrangements of devices
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 33/54 having a particular shape
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A remote control system in particular for locking and unlocking the doors of motor vehicles, the system being of the type including light source forming means associated with optical means adapted to configure the beam generated by the light source, wherein the optical means associated with the light source are adapted to define a transmission lobe centered on an aiming axis and comprising a first component of long range and small beam width together with a second component of shorter range and greater beam width.

Claims

1. A remote control system for locking and unlocking the doors of motor vehicles, said system comprising:

a light source and optical means associated with said light source for configuring a beam generated by said light source,

said optical means comprising a block of transparent material having a center on an aiming axis, a portion of said block defining of outlet spherical cap having a center located on said aiming axis,

said light source comprising two light-emitting crystals which are positioned in close proximity to said aiming axis and on opposite sides thereof and are offset along said aiming axis relative to one another so as to define a transmission lobe external to the optical means and along the aiming axis having a center located on said aiming axis, said transmission lobe comprising a first component characterized by a long range and small beam width and a second component characterized by a shorter range and greater beam width.