Adjustable time delay circuit

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United States of America Patent

PATENT NO 4618787
SERIAL NO

06559619

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An adjustable time delay circuit 10, 50 includes a time delay line 12 including a plurality of series connected time delay units 18a-p. During adjustment, sampled signals along the delay line 12 are compared with a reference signal by NOR-gates 22e-m. Upon a comparison being attained, the output of the corresponding NOR-gate 22e-m sets a selected flip-flop 30e-m which in turn routes the signal at a selected delay line tap 38e-m through a NOR-gate 34e-m to an output OR-gate 40. The tap 38e-m selected, compensates for component propagation characteristics thus maintaining a predetermined time delay through the time delay circuit 10.

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Patent Owner(s)

Patent OwnerAddress
AT&T TELETYPE CORPORATION A CORP OF DE5555 TOUHY AVENUE SKOKIE IL 60077

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jacksier, Barry H Wheeling, IL 2 27
Ollendick, Gary B Mundelein, IL 5 55

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