Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
Patent
1988-10-27
1991-03-19
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Measuring or testing of receiver
455236, 455234, 455343, 455308, H04B 126
Patent
active
050017764
ABSTRACT:
A transceiver determines the signal quality of a desired signal and the strength of all received signals. When the signal quality of the desired signal is low, and the signal strength of all received signals is high, the receiver is adapted to operate in a higher current mode, thereby minimizing intermodulation distortion. Conversely, when the quality of the desired signal is low and the strength of all received signals is also low, or when the quality of the desired signal is above a threshold, the receiver operates in a lower current mode to conserve power and maximize battery lifetime. Also, when the transceiver adapts to operate in the higher current mode, a command is sent instructing a transmitting party to increase the quality of their message which may enable the listening transceiver to adapt (return) to a lower current mode.
REFERENCES:
patent: 4352208 (1982-09-01), Schroeder
patent: 4485403 (1984-11-01), Illetschko
patent: 4691382 (1987-09-01), Nakajima
patent: 4761646 (1988-08-01), Choquet et al.
patent: 4907293 (1990-03-01), Veno
Eisenzopf Reinhard J.
Meles Pablo
Motorola Inc.
Urban Edward
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