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:
Aug. 14, 2001
Filed:
Aug. 02, 1999
Zhi-Long Tang, Allentown, PA (US);
Abstract
An integrated circuit preamplifier amplifies an input signal comprising first and second differential input signals to provide an amplified output signal comprising first and second differential output signals. A biasing circuit of the preamplifier provides a bias current. An open-loop differential amplifier of the preamplifier is coupled to the biasing circuit. The differential amplifier includes a differential amplifier pair having first and second differential amplifying transistors, which are coupled at respective gate terminals to the first and second differential input signals. Each of the amplifying transistors are coupled in open-loop configuration at a drain terminal to a respective load resistor coupled to ground, and the source terminals of the amplifying transistors are coupled together to receive the bias current. The first and second differential output signals are formed across the respective first and second load resistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile