Patent ID: 7123629

Claim:
A broadband network access device for the transmission of voice and data, comprising: one or more broadband subscriber line interface circuits, parallel with one another, for connecting to analog telephone subscriber lines; a splitting device which splits narrowband, low-frequency voice signals and broadband, higher-frequency data signals from one another in both directions of transmission and converts the voice and data signals into a digital signal in the direction of transmission to a network by sampling, and in the opposite direction of transmission into an analog signal; a digital voice signal processor for processing the voice signal data, which is connected to a digital voice network; a digital data signal processor for processing the data signal data, which is connected to a digital data network; wherein the voice signals are sampled in the splitting device in the direction of transmission to the digital voice network with a multiple of a data clock base, and subsequently decimated, and the data, decimated to the voice clock, is transmitted to the digital voice signal processor in a data clock pattern which is multiple of the data clock base; and wherein the conversion to a voice data pattern, which is a multiple of a voice clock base, is carried out in a synchronization interface module upstream of the digital voice signal processor which is provided for processing the voice data; and a phase locked loop that is supplied with a multiple of the voice clock base and generates a signal with a frequency that is a multiple of the data clock base on which the data sampling is based.