Data format conversion circuit

Details Data format conversion circuit Data format conversion circuit

1987-05-01

1989-01-10

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

370 58, 370 60, H03M 700

Patent

active

047976543

ABSTRACT:
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 modulo 32 format to stored data in a modulo 24 format or vice versa. In addition, this circuit provides output signals for generating proper framing bits and extended superframing information.

REFERENCES:
patent: 4644529 (1987-02-01), Amstutz et al.
patent: 4656623 (1987-04-01), Dalby, Jr. et al.
patent: 4698803 (1987-10-01), Haselton et al.

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