Magnetic encoder

• US 3,201,779 A
• Filed: 04/13/1962
• Issued: 08/17/1965
• Est. Priority Date: 04/13/1962
• Status: Expired due to Term

• Current Assignee: Claude L. Emmerich, Martin J. Goldberg
• Original Assignee: Claude L. Emmerich, Martin J. Goldberg
• Inventors: Emmerich, Claude L., Goldberg, Martin J.
• Application Number:
  US04/187,269
• Time in Patent Office: 1,222 Days
• US Class Current: 341/15
• CPC Class Codes: G01D 5/12 using electric or magnetic means G01D5/06 takes precedence
• CPC Class Codes: H03M 1/26 with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix

Claims

1. AN ENCODER INCLUDING IN COMBINATION A FIRST MEMBER, A SECOND MEMBER, A PLURALITY OF EQUALLY SPACED TEETH CARRIED BY SAID FIRST MEMBER, A PLURALITY OF UNEQUALLY SPACED TEETH CARRIED BY SAID SECOND MEMBER, MEANS MOUNTING SAID MEMBERS FOR RELATIVE MOVEMENT WHEREBY THE TEETH OF SAID FIRST MEMBER CAN REGISTER WITH THE TEETH OF SAID SECOND MEMBER, THE SPACING OF SAID TEETH OF SAID FIRST MEMBER AND THE SPACING OF SAID TEETH OF SAID SECOND MEMBER BEING SUCH THAT ONLY A SINGLE FIRST MEMBER TOOTH REGISTERS WITH A SINGLE SECOND MEMBER TOOTH IN ANY RELATIVE POSITION OF SAID MEMBERS, AND RESPECTIVE SIGNAL PRODUCING MEANS CARRIED BY THE TEETH OF SAID FIRST AND SECOND MEMBERS, EACH OF SAID SIGNAL PRODUCING MEANS PROVIDING A SIGNAL IN RESPONSE TO REGISTRY OF ITS TOOTH WITH ANOTHER TOOTH WHEREBY RESPECTIVE UNIQUE SIGNAL PAIRS EACH INCLUDING A SIGNAL FROM A FIRST TOOTH SIGNAL PRODUCING MEANS AND A SIGNAL FROM A SECOND TOOTH SIGNAL PRODUCING MEANS ARE PROVIDED AT A PLURALITY OF RELATIVE POSITIONS OF SAID MEMBERS.