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:
May. 14, 1996
Filed:
Sep. 02, 1993
Masanori Ogino, Yokohama, JP;
Yasuharu Tamuro, Yokohama, JP;
Miyuki Ikeda, Yokohama, JP;
Fumio Inoue, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A multi-scan type display apparatus with pointer function includes a multi-scan type display unit for displaying a plurality of kinds of main picture signals having different numbers of scanning lines and a pointer position identifying signal generating circuit for generating a pointer position identifying signal. The pointer position identifying signal generating circuit transfers the pointer position identifying signal to the multi-scan type display unit, the multi-scan type display unit includes a universal vertical position address signal generating circuit, a horizontal position address signal generating circuit, a pointer signal generating circuit and a superimposing circuit. The pointer signal generating circuit generates a pointer signal in response to the pointer position identifying signal, a universal vertical position address signal and a horizontal position address signal, the pointer signal is superimposed on the main picture signal by the superimposing circuit, so that even if the input signal to the multi-scan type display unit is changed over to a different one having a different number of scanning lines, a pointer display position is kept constant on the display unit, and the pointer position can be moved to a desired position by controlling the pointer position identifying signal.