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:
Nov. 04, 2008
Filed:
Jan. 04, 2007
Jungo Kondo, Nishikamo-Gun, JP;
Osamu Mitomi, Nagoya, JP;
Kenji Aoki, Ichinomiya, JP;
Takashi Yoshino, Ama-Gun, JP;
Keiji Matsuhiro, Nagoya, JP;
Jungo Kondo, Nishikamo-Gun, JP;
Osamu Mitomi, Nagoya, JP;
Kenji Aoki, Ichinomiya, JP;
Takashi Yoshino, Ama-Gun, JP;
Keiji Matsuhiro, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
The present invention provides a radio signal radiation system that alleviates the necessity of a highly specified pass band reception filter and a high performance/reliability amplifier. The radio signal radiation system includes an optical modulator; a light source for inputting an optical carrier wave into the optical modulator; a power source for applying a modulating signal having a frequency Fm on the optical modulator to superimpose a sideband wave onto the carrier wave, the modulating signal having an amplitude of N-times the drive voltage of the optical modulator; a light receiver to receive and convert the outgoing light into an electrical signal; and a radiating means for radiating a radio signal based on the electrical signal, wherein the sideband wave is superimposed at a position shifted by n×fm.