Patent ID: 7769108

Claim:
A cost considered digital radio receiver system combining a desirable instantaneous dynamic range with an acceptable single signal dynamic range, said system comprising the combination of: an analog to digital converter circuit generating a succession of n bit output digital amplitude sample words representing successive amplitude samples of an analog input radio frequency signal; a greatest bit sensor in receipt of said succession of n bit output digital amplitude sample words and identifying a succession of shorter k bit output digital amplitude sample words each including a highest active bit and a reduced number of adjacent active bits from said n bit digital amplitude words selected to provide a desirable instantaneous dynamic range; and a digital radio receiver circuit, of modest instantaneous dynamic range characteristics less than that of said n bit output digital amplitude sample words, connected to said greatest bit sensor and receiving said shorter k bit output digital amplitude sample words having a highest active bit and said reduced number of adjacent active bits from said greatest bit sensor; said digital radio receiver system having an enhanced instantaneous dynamic range capability with respect to said digital radio receiver circuit of modest instantaneous dynamic range characteristics wherein said n bit and k bit numbers are positive integers.