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. 20, 2007
Filed:
Jun. 12, 2002
Hiroshi Tajiri, Tokyo, JP;
Satoru Sakai, Tokyo, JP;
Yasutaka Nakata, Kanagawa, JP;
Takashi Gondoh, Tokyo, JP;
Hiroshi Tajiri, Tokyo, JP;
Satoru Sakai, Tokyo, JP;
Yasutaka Nakata, Kanagawa, JP;
Takashi Gondoh, Tokyo, JP;
Sony Corporation, , JP;
Abstract
A portable communication equipment comprises a radio communication sections (), () for transmitting and receiving a CDMA signal, a base band modem section () for modulating a speech signal into a CDMA signal and demodulating a CDMA signal into a speech signal, and a CPU () for controlling the transmission and reception of a CDMA signal. When the equipment fails in capturing a selected channel and falls in a condition when a system was lost, the CPU () retries to capture the selected channel. The CPU (), when it fails in capturing the selected channel, selects another channel only when it tries to capture the selected channel for a predetermined number of times as well as it does not obtain an overhead message. With this arrangement, it is possible to capture an appropriate channel if an unsuitable channel is selected and the portable communication equipment falls into a condition when a system was lost.