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:
Sep. 14, 1976
Filed:
Oct. 09, 1975
Edward Hynes Hutchinson, Medford, MA (US);
Computer Identics Corporation, Westwood, MA (US);
Abstract
Apparatus for determining whether the ratio of the widths of a pair of signals is within acceptable limits including integrator means, including a first integrator responsive to a first signal to integrate in a first direction at a first rate and to a second signal to integrate in the opposite direction at a second rate and a second integrator responsive to the first signal to integrate in the first direction at the second rate and to a second signal to integrate in the opposite direction at the first rate; indicator means responsive to the integrator means for providing a data signal representative of the first and second signals have the proper ratio beginning in response to the second integrator reaching a first predetermined level and ending in response to the first integrator reaching a second predetermined level and control means, responsive to the end of the second signal occurring during the presence of the data signal to provide a clock signal validating the data signal and to the end of the second signal occurring separately of the data signal to reject that data signal.