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. 15, 1983
Filed:
Dec. 15, 1980
Tomio Murayama, Kanagawa, JP;
Fumio Miyao, Kanagawa, JP;
Shigefumi Takeuchi, Nagano, JP;
Kazumi Tsukioka, Nagano, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A carrier signal recovery circuit to be used in a receiving side of an image information transmitting apparatus, such as in a facsimile system, including an N-bit counter for counting reference clock pulses for a period corresponding to 2.sup.L (L being an integer) cycle periods of the received carrier signal. A first latch holds the most significant bits from the count of the N-bit counter while a second latch holds the least significant bits from the count of the N-bit counter. A frequency divider has a frequency dividing ratio corresponding to one cycle period of the carrier signal with the value of the frequency dividing ratio being initially set by the output of the first latch circuit. An auxiliary counter receiving an input from the second latch provides an output to the frequency divider for correcting the frequency dividing ratio such that the recovered carrier signal is outputted from the frequency divider.