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. 11, 1998
Filed:
Sep. 27, 1995
Shinri Inamori, Yokohama, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A synchronizing signal creating circuit which can feed stable synchronizing signals even after input signals stop. it is constituted of gate circuit 804 makes signal (G) into logic level 1 and outputs to switching circuit 818 when the still picture creating apparatus which executes processing with the synchronizing signals created by synchronizing signal creating circuit 80 executes creation or output of still pictures, and when frame synchronizing signal (IFP) and the frame pulse do not synchronize. Switching circuit 818 selects contact point b and outputs numerical value (V.sub.DC) to digital/analog converting circuit 816 so the operation of PLL loop stops. Consequently, in this case, voltage control oscillating circuit 820 creates signals (HCK) with a frequency corresponding to numerical value (V.sub.DC) and in other cases, creates signals (HCK) with a frequency determined by the operation of the PLL loop.