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:
Aug. 12, 1986
Filed:
Mar. 29, 1984
Susumu Sasaki, Fujisawa, JP;
Hiroshi Nakamura, Sagamihara, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A radio communication system includes a transmitter unit, a radio transmission line and a receiver unit. The transmitter unit contains an insertion circuit for inserting one or two signals for carrier recovery into a modulated wave signal. Each signal for carrier recovery has a frequency (f.sub.O +f.sub.CL), where 0<.vertline.k.vertline.<1. The receiver unit receives, via the radio transmission line, the modulated wave signal, provided with the signals for carrier recovery therein. The receiver unit recovers, from the received signal, the frequency components f.sub.O and f.sub.CL and thereby reproduces the original data signal supplied to the transmitter unit with the use of the thus recovered frequency components f.sub.O and f.sub.CL.