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. 30, 2019
Filed:
Jun. 16, 2017
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yukito Tsunoda, Sagamihara, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A signal recovery circuit includes an oscillator that generates a first clock of which a frequency is variable, and a feedback circuit that controls the oscillator to synchronize the first clock with input data, depending on a phase relationship between the input data and the first clock, the feedback circuit including a control portion that controls the oscillator depending on the phase relationship between the input data and the first clock, a first phase detection circuit that generates a clock phase control signal depending on the phase relationship between the input data and the first clock, an output data generation circuit that generates output data by latching the input data at a change edge of the first clock, and a lock detection circuit that outputs a lock detection signal indicating whether a state is a lock state or a non-lock state.