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AssigneeGeneral Electric Company
InventorsTerry N. Garner, Ralph R. Sherman
Estimating the term…
The operating frequency of a radio transceiver and at least one further variable operating parameter of the radio transceiver are controlled in accordance with pre-stored information. Transmit operating radio frequency information is stored in a memory together with associated optimum modulation deviation level information (e.g., so as to maintain a predetermined modulation level at each operating frequency). Receive operating radio frequency information is similarly stored in the memory along with information indicating whether microprocessor clock oscillator frequency is to be shifted (e.g., so as to avoid spurious interfering harmonics emanating from the clock). When operating in the transmit mode, pre-stored modulation gain level information associated with the selected transmit frequency controls the gain of the modulator circuits to compensate for expected changes in modulator circuit gain with change in transmit radio frequency. In the receive mode, the microprocessor clock oscillator frequency may be shifted in accordance with the selected receive frequency, thereby automatically shifting harmonics of the microprocessor clock oscillator out of the receiver bandpass when necessary to avoid locally-generated signals from interfering with signal reception.
In a radio frequency receiving device of the type including:
A method of controlling a radio receiver of the type including a microprocessor, said method comprising the steps of:
In a microprocessor-controlled radio receiver of the type including tunable radio receiver means for receiving radio frequency signals at selected controllable radio frequencies a memory, a microprocessor operatively coupled to said memory, and clock oscillator means operatively coupled to said microprocessor for continuously producing a clock synchronizing signal at a nominal fixed clock frequency and applying same to said microprocessor to synchronize the operation of said microprocessor, a method comprising the steps of:
An apparatus for controlling a radio receiver of the type including a digital controller, said apparatus comprising:
In a digitally-controlled radio receiver of the type including a tunable radio receiver receiving radio signals at a programmable radio frequency, a digital controller connected to control said radio receiver, and clock oscillator means operatively coupled to said digital controller for continuously producing a clock synchronizing signal and applying same to said digital controller to synchronize the operation of said digital controller, an improvement comprising:
Dependencies are inferred from the claim text.