Patent ID: 6870876
Filing Date: 2005-03-22
Classification: H04J,H04L

Abstract:
1. A method for sending information data between at least two transceivers in a telecommunication system, wherein the information data is transmitted from a sending side of a transceiver to a receiving side of one or more other transceivers in the form of digital signals having a given sampling rate, which signals are played out at said receiving side in a controlled way, comprising the following steps: a) estimation of a sender's sampling rate at said sending side, b) transmitting the estimation to said receiving side, and c) controlling the play-out of received data at said receiving side by means of the sampling rate estimated at said sending side to avoid delays in the presentation, wherein the controlling of the play-out of received data at said receiving side by means of the sampling rate estimated at said sending side is carried out by estimation of a receiver's sampling rate at said receiving side and performing a compensation of the difference in said estimated sampling rates at said sending and receiving sides by a sample rate conversion method, wherein the estimation of the sampling rate in step a) is carried out in the form of a calculation based on a time measured between two events and a number of samples that has been sampled between them and wherein a ticking central processing unit (CPU) clock is used to measure the time between two events by: reading a time value of the CPU clock at two different times; estimating a number of ticks between the time values; and calculating an actual time between the events by means of the number of ticks per time unit.