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:
Jan. 13, 2004
Filed:
Jul. 13, 2000
Fumiaki Koizumi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
The remaining level of a battery is detected, and when the remaining level is lower than a specified value, supply of power is stopped to other circuits except necessary circuits that need electric power for reading out a telephone number from a telephone number memory and displaying the read out telephone number. Only the telephone directory function is remaining, and if the battery is spend and the portable telephone can not be used, at least a worst case of impossibility of any operation can be avoided. The specified value is a voltage level at which it is usually difficult to transmit and receive. The necessary circuits include the telephone number memory and the display unit for displaying the telephone number. It is further preferred to display it is impossible to transmit and receive, and possible to display the telephone number.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile