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:
Dec. 11, 2012
Filed:
Mar. 27, 2009
Kazunori Shibata, Osaka, JP;
Kazunori Shibata, Osaka, JP;
Icom Incorporated, , JP;
Abstract
Provided are a clock regeneration circuit and a receiver, wherein difference values (V, V, V) from an ideal value can be obtained for respective three sample data (T, T, T) which are obtained by oversampling a 4-level FSK demodulated signal at a higher frequency than that of a symbol clock and in which sample data (T) at a symbol point (P) is included at a median, and a sampling timing of the symbol point (P) is shifted toward a point where the sample data (T) having a smaller difference value is obtained, by a time corresponding to the difference value (V) at the symbol point. Thus, the clock regeneration circuit and the receiver are capable of regenerating a stable clock from multi-level modulated waves in a small calculation amount.