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Dynamic vocoder selection for storing and forwarding voice signals

  • US 6,363,339 B1
  • Filed: 10/10/1997
  • Issued: 03/26/2002
  • Est. Priority Date: 10/10/1997
  • Status: Expired due to Term
First Claim
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1. A voice storage and forwarding device, comprising:

  • an input for receiving a digital signal that conveys audio information;

    a group of vocoders, each vocoder including an encoder stage capable of compressing the digital signal that conveys audio information in at least one data frame;

    a switch capable of acquiring a plurality of vocoder selection positions, in each vocoder selection position said switch directing the digital signal that conveys audio information received at said input to a selected one of said vocoders of said group of vocoders;

    a tagging unit capable of generating a vocoder type designator for association with a data frame issued by the encoder stage of a given vocoder of said group of vocoders, said vocoder type designator capable of uniquely identifying the given vocoder amongst the vocoders in said group of vocoders;

    a storage medium in a data communicative relationship with said vocoders, said storage medium capable to store data that conveys audio information issued by a vocoder from said group of vocoders and transmit stored data that conveys audio information toward a selected one of said vocoders.

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