Log in
Enquire now
‌

US Patent 7129872 Audio signal analog-to-digital converter utilizing a transformed-based input circuit

OverviewStructured DataIssuesContributors

Contents

Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7129872
Date of Patent
October 31, 2006
Patent Application Number
11137043
Date Filed
May 25, 2005
Patent Primary Examiner
‌
Linh Nguyen
Patent abstract

An apparatus for converting an input analog audio signal into digital form including an analog-to-digital converter. An amplifier circuit and step-down transformer provide an interface for the input analog audio signal to the analog-to-digital converter. The step-down transformer includes a primary winding operably coupled to the amplifier circuit and a secondary winding operably coupled to the analog-to-digital converter. The amplifier circuit drives the primary winding with the input analog audio signal (or an amplified version thereof). The step-down transformer generates a stepped-down representation of the input analog audio signal at its secondary winding. Advantageously, the step-down transformer lowers the effective output impedance of the amplifier circuit, which reduces distortion in the audio analog input signal supplied to the analog-to-digital converter. In addition, the step-down transformer reduces (by the factor 1/N) the demand placed on amplifier circuit in charging a sampling capacitor typically realized as part of the input stage of the analog-to-digital-converter.

Timeline

No Timeline data yet.

Further Resources

Title
Author
Link
Type
Date
No Further Resources data yet.

References

Find more entities like US Patent 7129872 Audio signal analog-to-digital converter utilizing a transformed-based input circuit

Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
Open Query Tool
Access by API
Golden Query Tool
Golden logo

Company

  • Home
  • Press & Media
  • Blog
  • Careers
  • WE'RE HIRING

Products

  • Knowledge Graph
  • Query Tool
  • Data Requests
  • Knowledge Storage
  • API
  • Pricing
  • Enterprise
  • ChatGPT Plugin

Legal

  • Terms of Service
  • Enterprise Terms of Service
  • Privacy Policy

Help

  • Help center
  • API Documentation
  • Contact Us
By using this site, you agree to our Terms of Service.