Patent ID: 6026288
Filing Date: 2000-02-15
Classification: H04B

Abstract:
A system having a received signal path therein, said signal path including a mixer that modifies a carrier frequency of an information signal propagating through said signal path, said system comprising an apparatus for reducing an overall power consumption of said system, said apparatus comprising:a received signal strength indicator (RSSI) circuit, in communication with said signal path, that provides an RSSI signal that is a function of a power of said information signal; anda power reduction circuit, coupled to said RSSI circuit, that reduces a current draw of said mixer when said RSSI signal exceeds an upper threshold level and increases said current draw of said mixer when said RSSI signal falls below a lower threshold level, said upper and lower threshold levels forming a hysteresis band to render said power reduction circuit immune to changes in RSSI signal level caused by operation of said power reduction circuit.