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:
Mar. 16, 1982
Filed:
Feb. 04, 1980
Izumi Horikawa, Yokohama, JP;
Masaaki Shinji, Sekiu, JP;
Nippon Telegraph & Telephone Public Corporation, Tokyo, JP;
Abstract
The error rate performance of a digital radio system which is deteriorated due to inband interference components can be effectively improved by adopting the present digital signal reception technique. According to the present invention, a narrow band band-elimination filter removes the interference, and after the digital signal is regenerated, the spectrum, which is removed by said band-elimination filter, is recovered from the regenerated digital signal. The recovered digital signal is added to the original one, and is applied to the regenerator. Thus, even though an interference component interfers with the digital signal in the same pass-band, said interference component is removed by the present invention and one can obtain the digital signal without the interference component.