Patent ID: 7349409
Filing Date: 2008-03-25
Classification: H04J

Abstract:
1. A receiver for clock recovery in transport of CBR (constant bit rate) services over an ATM (asynchronous transfer mode) network between a transmitter and a receiver each being connected to a common reference clock used to encode information at the transmitter and recover the encoded information at the receiver, the transmitter being either a DCTI (duty cycle timing information) coded bit sequence transmitter or a SRTS (synchronous residual time stamp) coded bit sequence transmitter which includes a generator of a control parameter and an oscillator, the receiver comprising: a DCTI generator; a generator of an RTS (residual time stamp) signal; a multiplexer having a selection input; and a method recogniser configured to automatically distinguish whether incoming information was generated by a DCTI transmitter or a SRTS transmitter and to generate a signal received by the generator of the control parameter and the multiplexer, wherein the method recogniser is configured to control the multiplexer to select which of the DCTI generator or the RTS signal generator corresponding to the recognised DCTI or SRTS transmitter in order to recover the clock.