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:
Jul. 17, 2001
Filed:
Dec. 23, 1997
Koji Fujimoto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio terminal apparatus is arranged by a signal receiving circuit for receiving an externally supplied signal; a power supply for supplying electric power to each of circuit portions of the radio terminal apparatus; judging means for judging a reception signal field strength of the received external signal; and a power supply control unit for intermittently supplying the electric power derived from the power supply to the signal receiving circuit, while changing a power supplying period in response to the reception signal field strength judged by the judging means under call waiting state of the radio terminal apparatus. Further, a mobile communication system is arranged by these radio terminal apparatus, radio base station control apparatus, and radio base station apparatus.