Digital signal processing device and digital signal processing method

Patent 7266152 Issued on September 4, 2007. Estimated Expiration Date:

July 29, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Signal processing apparatus and method for sound field processing of ΣƊ modulated digital signal
Patent #: 5859603
Issued on: 01/12/1999
Inventor: Noguchi, et al.

Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator
Patent #: 6326912
Issued on: 12/04/2001
Inventor: Fujimori

Method and apparatus for spectral shaping of non-linearity in data converters Patent #: 6518899
Issued on: 02/11/2003
Inventor: Yu

Inventors

Assignee

Sony Corporation

Application

No. 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

Examiners

Primary: Fan, Chieh M.
Assistant: Tu, Julia

Attorney, Agent or Firm

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

International Class

H04B 14/06

Abstract

A 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.