Data format conversion circuit

Details Data format conversion circuit Data format conversion circuit

H - Electricity

03

M

354/67

H03M 7/00 (2006.01) H04J 3/16 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1309499

DATA FORMAT CONVERSION CIRCUIT ABSTRACT OF THE INVENTION This circuit converts data in an ISDN data format to data in a T-carrier compatible data format and vice versa. The converted data is then stored in a memory for subsequent transmission. Due to the format differences, the data may be discontinuous. This circuit stores the data in memory in a contiguous fashion to promote and to facilitate the subsequent transmission of the data. This circuit includes a timing and control arrangement which indicates the size of each channel and frame of input data. This circuit generates memory addresses for the storage of both ISDN and T-carrier formatted data which are contiguous over multiple frames of data. A counting arrangement of this circuit converts data received in a module 32 format to stored data in a module 24 format or vice versa. In addition, this circuit provides output signals for generating proper framing bits and extended superframing information.

565364

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