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Title: |
US5325031:
Adaptive robotic nervous systems and control circuits therefor
[ Derwent Title ]

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Country: |
US United States of America

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Inventor: |
Tilden, Mark W.; Waterloo, Ontario, Canada

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Assignee: |
None

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Published / Filed: |
1994-06-28
/ 1992-06-15

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Application Number: |
US1992000898836

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IPC Code: |
Advanced:
B62D 57/02;
Core:
B62D 57/00;
IPC-7:
G06F 15/50;

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ECLA Code: |
B62D57/02;

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U.S. Class: |
Current:
318/568.11;
318/568.16;
706/015;
706/023;
901/001;
Original:
318/568.11;
318/568.16;
395/021;
901/001;

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Field of Search: |
318/560-589
395/080-89
180/8.1-8.9
901/001,2,3,7,9

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Priority Number: |

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Abstract: |
A self-stabilizing control circuit utilizing pulse delay circuits for controlling the limbs of a limbed robot, and a robot incorporating such a circuit, are provided. The pulse delay circuit acts as an artificial "neuron" which drives servo motors according to a selected sequence which is reconfigurable in response to signals from local or remote sensors. Also disclosed is a pulse neutralizing circuit which can be used to stabilize and reconfigure sequencing loops and chains incorporating the pulse delay circuit, and which can modify the actuation processes controlled thereby.

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Attorney, Agent or Firm: |
Ridout & Maybee ;

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Primary / Asst. Examiners: |
Ip, Paul;

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Maintenance Status: |
E1 Expired Check current status

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INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report

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Family: |
Show 3 known family members

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First Claim:
Show all 19 claims |
I claim:
1. A sequencing circuit for controlling the motion of a mechanical limb actuated by at least servo motor, comprising a plurality of pulse delay circuits connected in series, in which each pulse delay circuit comprises
- an inverter for inverting an electrical pulse, the output of which is connected to a capacitor, the input of the next pulse delay circuit in the series being connected to the other side of the capacitor, and
- voltage threshold means for delaying the operation of the inverter until the capacitor has reached a predetermined charge.

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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Forward References: |
Show 4 U.S. patent(s) that reference this one

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Foreign References: |
None

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Other Abstract Info: |
DERABS G94-208802
DERG94-208802

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Other References: |
SPIE Robotics Newsletter-Apr., 1992.
Mathematical Recreations-A. K. Dewdney, Scientific American, Jul., 1991, pp. 118-121.
(4 pages)
[ISI abstract]
A Robot That Walks-Rodney A. Brooks, published 1989; pp. 99-108.
Evolving Dynamical Neural Networks for Adaptive Behavior-Randall D. Beer et al., published 1992, Case Western Reserve University, particularly pp. 19-24.
A Biological Perspective on Autonomous Agent Design-Randall D. Beer et al., published 1990, North-Holland Robotics and Autonomous Systems 6 (1990) 169-86, particularly pp. 175-178.

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