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. 27, 2012
Filed:
Sep. 01, 2005
Keiji Hirao, Osaka, JP;
Motoe Sakanaka, Osaka, JP;
Tomohiro Yamada, Hyogo, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
A communication terminal includes a CPU (). The CPU () issues to a router () a send request for requesting the router () to send an ask signal for repetitive responses to a server (). Then, the ask signal is sent to the server () by the router (), and a receive port is temporarily opened. From the server (), a response signal is repeatedly sent in response to the ask signal. To the response signal, time information representative of a waiting time from receiving an ask signal to its reply is attached. A response signal sent back while the receive port is opened arrives at the communication terminal through the router (), but a response signal sent back after the receive port is closed is discarded in the router (). The CPU () repeatedly issues a send request to the router () regarding a time indicated by time information attached to the response signal lastly received as an issuance cycle (T).