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:
Dec. 30, 1997
Filed:
Dec. 05, 1996
Yukio Miyashita, Tokyo, JP;
Toshiro Nishiyama, Shizuoka, JP;
NEC Corporation, Tokyo, JP;
Abstract
When a switch for manually terminating an informing operation of a call informing device is not depressed during an informing operation, the informing operation is automatically halted after a first set time of a first timer. After a second period of time T, determined by a second timer, elapses from the start of the informing operation, the informing operation is repeated for the first set time of the first timer. After the second period of time T elapses from the start of the second informing operation, the informing operation is repeated. The informing operations are performed, halted and repeated until the user terminates the operation of the call informing device. During the period of time from the first informing operation to the depression of the switch, a counter and a timer setting circuit increment the second period of time (halt interval) to N.T corresponding to the increase in the number N times of the informing operation. Accordingly, the user of the receiver can be made aware of a call as quickly as possible by carrying out the informing operations with short halt intervals immediately after the call is received. On the other hand, if the switch is not depressed even after many informing operations, the life of the battery is prolonged by increasing the halt interval between informing operations in accordance with the number of informing operations performed.