AN IDENTIFICATION SYSTEM

• US 3,820,072 A
• Filed: 03/16/1971
• Issued: 06/25/1974
• Est. Priority Date: 12/31/1968
• Status: Expired due to Term

• Current Assignee: Alvin S. Blum
• Original Assignee: Alvin S. Blum
• Inventors: Blum, Alvin S.
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US05/126,255
• Time in Patent Office: 1,197 Days
• Field of Search: 340/149A 235/61.7B
• US Class Current: 340/5.8
• CPC Class Codes: G07C 9/27 with central registration

Abstract

An identification system including a card preparation system, a memory system, remote card reading stations, a comparator, accessory device, and a control means connected between each of said items. The card preparation system records distinct patterns on identification cards. The control means directs the operation of the information retrieval system. The memory system stores identifying information characteristics as well as distinct coded patterns that are placed on the cards. The remote card reading stations provide relative movement between the card being read and the reading head in the station in order to generate a train of electrical impulses. The comparator compares the train of electrical impulses from a remote station and a train of electrical impulses from the memory system. The comparator signals a match or mismatch to the control means in order to operate various accessory devices.

Claims

1. A plurality of location reading stAtions for track coded instruments connected to at least one communication link connectable to a master location, each location reading station comprising;

a separate station identification track including uniquely coded reproduceable data connected to said reading station to identify said reading station to the master location, a coded instrument receiving station connected to said reading station for receiving and aligning a coded instrument, said coded instrument receiving station aligned with said separate station identification track to form a continuous track, said continuous track containing two portions, the separate station identification track and a coded instrument track on a coded instrument in said receiving station, a movable member connected to said reading station, a reproducing head connected to said communication link and to said movable member and positioned to read said continuous track for generating a train of electrical impulses from the separate station identification track and a coded instrument track, a moving means connected to said movable member to drive said movable member and said reproducing head over said two continuous tracks, and a triggering means connected to said reading station to actuate said moving means.

2. A plurality of location reading stations for track coded instruments connected to at least one communication link connectable to a master location, each location reading station as set forth in claim 1, including;

a second separate station identification track containing duplicate of the first said separate station identification track, a second reproducing head connected to said movable member and aligned with said second separate station identification track, a warning means, and said coded instrument receiving station for aligning a coded instrument with a duplicate coded track with the two separate station identification tracks to form two duplicate continuous tracks, whereby said reproducing heads normally produce a duplicate track signal and to actuate said warning means when different trains of electrical impulses are produced.

3. A location reading station for a duplicate tracks coded instruments, each containing redundant information for fail safe and maintenance purposes comprising;

a code reproducing circuit, a movable member connected to said reading station, a moving means connected to said movable member to drive said movable member and said reproducing head over said two continuous tracks, two reproducing heads connected to said movable member, positioned to read said duplicate tracks on the coded instruments, and connected to said reproducing circuit for generating duplicate trains of electrical impulses from a coded instrument, a warning means, a coded instrument station connected to said reading station, said instrument station receives and aligns said duplicate tracks of the coded instruments with said two reproducing heads to normally produce duplicate track operation signals, and to actuate said warning means when there is a lack of duplicate track signals and a single track operation signal, and a triggering means connected to said reading station to actuate said moving means.