The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Apr. 01, 2011
Julien Borghetti, Mountain View, CA (US);
Matthew D Pickett, San Francisco, CA (US);
Gilberto Medeiros Ribeiro, Palo Alto, CA (US);
Wei Yi, Mountain View, CA (US);
Jianhua Yang, Palo Alto, CA (US);
Minxian Max Zhang, Mountain View, CA (US);
Julien Borghetti, Mountain View, CA (US);
Matthew D Pickett, San Francisco, CA (US);
Gilberto Medeiros Ribeiro, Palo Alto, CA (US);
Wei Yi, Mountain View, CA (US);
Jianhua Yang, Palo Alto, CA (US);
Minxian Max Zhang, Mountain View, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Circuitry is provided that closely emulates biological neural responses. Two astable multivibrator circuits (AMCs), each including a negative differential resistance device, are coupled in series-circuit relationship. Each AMC is characterized by a distinct voltage-dependant time constant. The circuitry exhibits oscillations in electrical current when subjected to a voltage equal to or greater than a threshold value. Various oscillating waveforms can be produced in accordance with voltages applied to the circuitry.