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:
Dec. 23, 1980
Filed:
Mar. 16, 1979
Masanori Kamiya, Yokohama, JP;
Hitachi, Ltd., , JP;
Abstract
The display device uses a diode to control an associated primary color output transistor so that a specific color is intensely reproduced. A diode is associated with each of three primary color output transistors which provide an output for switching in accordance with received bands of television signals. These associated switches are provided between the electronic tuner and the power source for the circuitry. The diode associated with each primary color output transistor is on-off controlled by a pulse so a predetermined pulse width is generated following the termination of a period responsive to the magnitude of the tuning voltage which starts from the time at which the horizontal blanking pulse is generated. Because of the generation of the controlling pulse at the horizontal synchronization, a vertically extending bar or stripe is reproduced in the specified color in accordance with the reception band.