Arrangement for converting binary input signal into correspondin

Details Arrangement for converting binary input signal into correspondin Arrangement for converting binary input signal into correspondin

1991-01-31

1993-10-19

Kuntz, Curtis

Pulse or digital communications

Repeaters

Testing

375 67, 371 378, 307471, 332104, H04L 2712, H03K 706

Patent

active

052552888

ABSTRACT:
In order to effectively reduce a memory size of each of two memories provided in an arrangement for converting a binary input data into the corresponding inphase and quadrature signals, a memory output controller and a sequential logic are provided. The memory output controller includes two polarity control circuits and two input data selectors. The two polarity control circuits are respectively coupled to the two memories, while the two input data selectors are preceded by and coupled to both of the two polarity control circuits. Each of the two polarity control circuits reverses the polarity of the output of the associated memory according to the output of the sequential logic. On the other hand, each of the two input data selectors is arranged to selectively acquire the outputs of the two polarity control circuits depending on the output of the sequential logic.

REFERENCES:
patent: 4686688 (1987-08-01), Chung et al.
patent: 4748641 (1988-05-01), Dapper
patent: 4868428 (1989-09-01), Cooper
European Search Report, dated Mar. 11, 1992.

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