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:
Oct. 16, 2018
Filed:
Apr. 02, 2014
Softbank Corp., Tokyo, JP;
Softbank Corp., Tokyo, JP;
Abstract
Communication systems and communication methods capable of evaluating a voice quality in a voice communication of a communication network and a presence or absence of a call drop of the voice communication are provided. A voice communication of transceiving a test signal for voice communication quality evaluation between a communication terminal apparatusand a voice communication evaluation systemvia the communication networkis performed. A voice quality evaluation value is calculated based on the test signal before transmission and the test signal after reception in the voice communication. A presence or absence of a call drop of the voice communication is determined based on a presence or absence of reception interruption of the test signal.