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:
Mar. 09, 1976
Filed:
Nov. 11, 1974
James D Awtrey, Garland, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A metal-insulator-semiconductor structure is disclosed which includes provision for canceling clock-line noise. In a preferred embodiment, the noise radiated by and capacitively coupled from the multiphase clock lines in a charge-coupled-device structure is canceled by forming at least one passive diode adjacent the output diode of the CCD. The passive diode is spaced from the clock lines by a distance which as closely as possible matches the distance which the output diode is spaced from the clock lines. The output diode is connected to the non-inverting input of a differential amplifier while the passive diode is connected to the inverting input of the differential amplifier; the differential amplifier can be either formed on the chip or separate from the chip. The clock line radiated noise is common to both diodes and is therefore canceled by the differential amplifier.