Patent Document ID: 5386149
Application ID: 07961288
Patent Flag: 1

Claim One:
1. A synapse expressing unit for electronically expressing a synapse for coupling neurons through a predetermined coupling strength in a neural network, comprising: synapse load storage means for storing synapse load value information representative of the coupling strength, said synapse load storage means including capacitance means for storing the synapse load value information in a form of electronic charges, and said capacitance means including a first electrode for providing the synapse load value; and refreshing means responsive to a refresh instruction, for refreshing the synapse load value information in said synapse load storage means, said refreshing means including comparison means for comparing a potential at said first electrode of said capacitance means and a first reference potential, and adjusting means responsive to said comparison means for recovering the electric charges in said capacitance means at said first electrode through a charge pumping operation.