×

Process for digitizing speech

  • US 5,157,727 A
  • Filed: 09/14/1987
  • Issued: 10/20/1992
  • Est. Priority Date: 02/22/1980
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for encoding speech comprising the steps of;

  • (a) discovering the random zero crossing events of speech in real time by using a non-clipping means to detect zero crossings;

    (b) using an output signal of said means to detect zero crossings to drive a means to generate uniform pulses which are narrow, of constant width and constant amplitude, said pulses being time coincident with said zero crossings;

    (c) transmitting said pulses to a remote point;

    (d) receiving said pulses; and

    (e) applying said pulses to an intelligent reconstruction means which is configured to latch up on receipt of a positive pulse and latch down on receipt of a negative pulse.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×