Method and apparatus for multiplexed oversampled analog to digital modulation
May 19, 2012. 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.Patent ReferencesSystem for digitizing transient signals Analog-to-digital converter system Charge domain block matching processor Analog/digital converter configuration with sigma-delta modulators Sigma-delta analog-to-digital converters based on switched-capacitor differentiators and delays Read-out photodiodes using sigma-delta oversampled analog-to-digital converters Multiplexed sigma-delta A/D converter Patent #: 5150120 InventorApplicationNo. 885474 filed on 05/19/1992US Classes:341/141, Multiplex341/143, Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation)341/172, Using charge transfer devices (e.g., charge coupled devices, charge transfer by switched capacitances)348/302, X - Y architecture348/311Charge-coupled architectureExaminersPrimary: Williams, Howard L.Attorney, Agent or FirmInternational ClassH03M 003/00AbstractApparatus for time multiplexed oversampled analog to digital modulation is provided. Embodiments include modulators (60 and 300) and focal plane optical imagers (100, 160 and 200). The apparatus includes a plurality of storage elements (70) to hold modulation residues. Multiplexor and demultiplexor structures (72, 74) enable residues to be updated and stored for a plurality of modulated signals. | |
