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:
Jun. 09, 2009
Filed:
Jan. 08, 2008
Chia-hua Chou, Taipei County, TW;
Kang-wei Hsueh, Hsinchu, TW;
Chia-Hua Chou, Taipei County, TW;
Kang-Wei Hsueh, Hsinchu, TW;
Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
The present invention provides a signal amplifying apparatus, for converting a first input signal into a first output signal. The signal amplifying apparatus includes an input stage circuit for receiving the first input signal; a cascoded circuit coupled to the input stage circuit, including a plurality of first cascoded transistors, wherein equivalent oxide thicknesses of the first cascoded transistors are not the same; an output stage circuit has a first input port coupled to the cascoded circuit, and a first output port for outputting the first output signal; and a first capacitor has a first terminal connected to the first output port of the output stage circuit and a second terminal coupled to the cascoded circuit, wherein the second terminal is not connected to the first input port of the output stage circuit.