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:
May. 29, 2001
Filed:
Dec. 02, 1998
Youko Omori, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A uniform amplitude modulator includes in-phase component & quadrature component generation units and a modulated signal generation unit. The in-phase component & quadrature component generation units receive data represented by phase information and generate in-phase and quadrature components as analog signals. The modulated signal generation unit receives the in-phase and quadrature components and generates a modulated signal whose amplitude is uniform. One of the in-phase component & quadrature component generation units is constituted by a device for outputting an analog signal having any one of three, predetermined positive and negative values associated with the phase information, and 0. The other is constituted by a device for outputting an analog signal associated with the phase information.