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:
Aug. 28, 1979
Filed:
Oct. 17, 1977
Norio Meki, Takatsuki, JP;
Tadashi Yoshino, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A synchronizing signal processing digital circuit adapted for integrated circuit manufacture for blanking equalization pulses from an input composite synchronization signal to obtain a synchronized horizontal-signal therefrom, which comprises D-type flip-flop having a clock input terminal to receive the composite sync signal and a D-input terminal to receive the composite sync signal and a D-input terminal fixed to a high level, a counter for counting input clock pulses of a frequency higher than that of the horizontal sync signal and applying a first pulse by counting a predetermined number of the clock pulses to a reset terminal of the D-type flip-flop, and a pulse generation circuit for applying a second pulse signal to set the counter in response to input clock pulse, whereby the synchronized signal free from the equalization pulses of the composite signal is produced with the output signal of the D-type flip-flop.