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. 01, 1992
Filed:
Jun. 28, 1991
Morton H Tarr, Bolton, MA (US);
Data Translation, Inc., Marlboro, MA (US);
Abstract
An oscillator including an oscillator input node for receiving an oscillator input analog signal, an oscillator output node for providing a train of output pulses having a frequency related to the magnitude of the input analog signal, a trigger gate component connected between the input node and the output node and having a low threshold and a high threshold, the gate component being in a path between the input and output without other active components and having a low input current in the range of 1 uA or less, a feedback switch connected in parallel to the trigger gate component and having a switch turn on threshold such that the switch is turned on to conduct current when the trigger gate is in one output state and is turned off when the trigger gate is in the other output state, and capacitance between a reference voltage and the input node so that the voltage at the input node ramps from one threshold to the other at a rate dependent on the input current.