US 6,983,140 B2
Portable mobile unitGeneral
US 6,983,140 B2
Portable mobile unit
Tech Center:
2600 Communications
Examiner:
William Trost
Art Unit:
2683 Telemetry and Code Generation; Vehicles and System Alarms; Selective Communication; Dynamic Storage Systems; Mechanical parts of Disk Drives; Signal Processing and Control Processing in Disk Drives
Inventors:
Kazutoshi Higuchi
Assignee:
Priority:
10/17/00
Filed:
04/27/01
Granted:
01/03/06
Expiration:
11/19/22
Abstract
A cellular phone capable of informing a user of the deterioration of a line speech quality by raising an alarm. In the cellular phone according to the present invention, the condition in which the saturation of a transmission output lasts for a predetermined period of time or longer is detected, and a deterioration in the uplink speech quality is thereby predicted, an alarm signal being sent out to the cellular phone. Thus, the user is notified that a deterioration in the uplink speech quality occurs.
Cooperative Patent Classification (CPC)
H04H04W24/00H04W