Patent ID: 6667966
Filing Date: 2003-12-23
Classification: H04B

Abstract:
An ambient field level monitor device for a radio mobile terminal, comprising;a reception section for receiving a radio signal arriving at said radio mobile terminal to output a reception signal originating from the received radio signal and further to output an ambient field level signal; a synchronization decision section for receiving said reception signal from said reception section to judge whether or not said reception section is in synchronism with the received radio signal; and an ambient field level monitoring section for receiving said ambient field level signal from said reception section and for extracting a digital sampling data from said ambient field level signal to detect an ambient field level, wherein, for the detection of said ambient field level, said ambient field level monitoring section selectively employs different modes for the extraction of said digital sampling data from the ambient field level signal for when said synchronization decision section judges that said reception section is out of synchronism with the received radio signal and for when said synchronization decision section judges that said reception section is in synchronism with the received radio signal.