发明名称 |
Method and apparatus for determining a quality level of an analog signal in a radio communication system |
摘要 |
A radio transmitter (103) transmits a cycle (320) including a digital portion (330) generated by frequency modulating a radio carrier with a digital signal and an analog portion (440) generated by amplitude modulating a radio carrier with an analog signal. A selective call radio (106) frequency demodulates the digital signal; amplitude demodulates the analog signal; decodes a message address (510); generates a quality signal indication (643) while a quality assessment signal (420) is being received; processes an information signal (550) in response to a message received signal (641); records at least one measurement of the quality assessment signal (420) during the quality signal indication (643); determines a signal quality level of the information signal (550) from the at least one measurement of the quality assessment signal (420); and generates a sensible alert in response to the signal quality level.
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申请公布号 |
US5603088(A) |
申请公布日期 |
1997.02.11 |
申请号 |
US19950397322 |
申请日期 |
1995.02.28 |
申请人 |
MOTOROLA, INC. |
发明人 |
GORDAY, PAUL E.;SUNIL, SATYAMURTI |
分类号 |
H04B17/00;(IPC1-7):H04B1/04;H04B1/16 |
主分类号 |
H04B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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