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:
Apr. 28, 1998
Filed:
Jun. 04, 1996
Keiji Hikoso, Narashino, JP;
Naoki Okamoto, Chiba, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a PDI receiver, received signals are digitized by A/D converting portion, correlated by digital matched filters, amplitude of the correlated value is calculated from the correlated output by a correlated value calculating portion, a reproduction clock is generated in accordance with the calculated correlated value by a clock reproducing portion, and the correlated output is demodulated by a differential demodulating portion. Using the clock signal as a reference, a window pulse is generated by a window generating portion, and only during the pulse period, an AND gate is opened, outputs therefrom are integrated by an integrating portion, and data is detected by a detecting portion.