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:
Feb. 09, 1988
Filed:
Mar. 27, 1986
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An automatic gain control (AGC) detection circuit. The AGC detection circuit includes; a current source, first to fourth transistors whose emitters are connected in common to the current source, a reference voltage source for supplying the bases of the first and the second transistors with a reference voltage, input terminal means connected to the bases of the third and the fourth transistors for receiving an input signal, a power supply source for supplying the first to fourth transistors with a power supply voltage, first collector load means connected between the power supply source and a node connecting the collectors of the first and second transistors in common, second collector load means connected between the power supply source and another node connecting the collectors of the third and fourth transistors in common, and an output terminal means connected between the nodes for taking out an automatic gain control detection output.