×

Method and apparatus for synchronizing a transmitter clock of an analog modem to a remote clock

  • US 20060045174A1
  • Filed: 08/31/2004
  • Published: 03/02/2006
  • Est. Priority Date: 08/31/2004
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for synchronizing a clock within an analog modem to a remote clock within a public switched telephone network, wherein said analog modem includes a modem transmitter, a modem receiver and a modem codec, said method comprising:

  • utilizing a transmitter re-sampler to re-sample a plurality of transmitter signals from said modem transmitter to said modem codec in a transmit path of said analog modem;

    deriving a sampling rate for said transmitter re-sampler from a re-sampling period of a receiver re-sampler provided between said modem receiver and said modem codec; and

    synchronizing a transmitter clock within said modem transmitter to a sampling clock within a codec in said central office.

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