The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1986
Filed:
Dec. 09, 1983
Barry H Jacksier, Wheeling, IL (US);
Gary B Ollendick, Mundelein, IL (US);
AT&T Teletype Corporation, Skokie, IL (US);
Abstract
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.