Signal processing apparatus and method for sound field processing of ΣƊ modulated digital signal
Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator
Method and apparatus for spectral shaping of non-linearity in data converters Patent #: 6518899
ApplicationNo. 10629418 filed on 07/29/2003
US Classes:375/247, Single bit (delta)375/243, Correcting or reducing quantizing errors375/244, Differential375/245, Quantizer or inverse quantizer375/246, Length coding341/77, To or from delta modulation codes341/126, ANALOG TO OR FROM DIGITAL CONVERSION341/143, Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation)341/118, CONVERTER COMPENSATION375/376Phase locked loop
ExaminersPrimary: Fan, Chieh M.
Assistant: Tu, Julia
Attorney, Agent or Firm
International ClassH04B 14/06
AbstractA device for performing predetermined processing on an input signal that may have a signal amplitude of more than one bit. The input signal is obtained by subjecting one-bit serial signals to predetermined signal processing, wherein the signal amplitude of more than one bit is converted to a one-bit serial signal by accumulating the signal amplitudes that exceed one bit, delaying the accumulated signal on the basis of the input signal, and outputting the accumulated signal.