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System for continuously measuring forces applied to the foot

  • US 5,323,650 A
  • Filed: 01/14/1993
  • Issued: 06/28/1994
  • Est. Priority Date: 01/14/1993
  • Status: Expired due to Term
First Claim
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1. A self-contained system for measuring forces applied to the foot of a user, the system comprising:

  • a force sensor array positioned within a shoe worn by the user such that said force sensor array lies between the user'"'"'s foot and an inner sole of the shoe, said force sensor array comprising a multiplicity of individual force sensors arranged in a pattern that covers the entire area of contact between the sole of the user'"'"'s foot and the inner sole of the shoe;

    an electronic circuit module adapted for attachment to said shoe; and

    interconnection means for electrically coupling the force sensor array to the electronic circuit module;

    said electronic circuit module being operative for electronically continuously scanning said force sensor array to obtain information indicative of an instantaneous force sensed by each one of said multiplicity of individual force sensors comprising said force sensor array;

    said electronic circuit module comprising;

    scanning circuitry for scanning said force sensor array;

    central processing means for executing instructions controlling said scanning circuitry and for processing said information indicative of the instantaneous force sensed by each one of said multiplicity of individual force sensors comprising said force sensor array to obtain force data;

    clock means coupled to said central processing means for providing date and time of day information thereto;

    read-only memory means coupled to said central processing means for storing routines and subroutines of instructions to be executed by said central processing means during a system boot period of operation; and

    random access memory means for storing additional routines and subroutines of instructions to be executed by said central processing means subsequent to said system boot period of operation and for storing said force data.

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