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:
Feb. 05, 2013
Filed:
Feb. 22, 2010
Osamu Matsunaga, Kanagawa, JP;
Osamu Matsunaga, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A receiving apparatus includes: a clock unit that outputs time information; a synchronizing (sync) packet receiving unit that receives a sync packet which contains transmitting time information and which is sent from a transmitting apparatus over an asynchronous network; a magnitude-of-jitter calculation unit that calculates as a magnitude of a jitter a difference between a first difference, which is a difference between the receiving times of two adjoining sync packets received by the sync packet receiving unit, and a second difference which is a difference between the transmitting times of the two sync packets; a delay time estimation unit that obtains the delay time of the sync packet on the basis of magnitudes of jitters calculated by the magnitude-of-jitter calculation unit; and a time correction unit that compensates the transmitting time of the sync packet, which is received by the sync packet receiving unit, on the basis of the delay time of the sync packet, which is obtained by the delay time estimation unit, so as to obtain a compensated time, and rewrites and corrects the time of the clock unit with the compensated time.