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. 15, 1995
Filed:
Sep. 15, 1992
Yoshio Yasumoto, Nara, JP;
Sadashi Kageyama, Hirakata, JP;
Shuji Inoue, Moriguchi, JP;
Hideyo Uwabata, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A wide-screen TV signal transmission apparatus includes transmitting a wide-screen TV signal generator for generating a wide-screen TV signal source; a scanning line converter for down-converting a wide-screen TV signal with an integer conversion ratio to obtain a conventional TV-compatible signal with upper and lower black bars; a vertical augmentation signal generator for generating a vertical augmentation signal to enhance the vertical resolution at the receiving side of the transmission apparatus; and adder for adding; a conventional TV-compatible signal and a vertical augmentation signal to obtain a conventional TV-compatible composed signal; and a transmitter for transmitting a conventional TV-compatible composed signal. The wide-screen TV signal transmission apparatus includes, in its receiving side a video signal detector for detecting a video signal from a transmitted modulated conventional TV-compatible composed signal to obtain a base-band video signal; a signal separater for separating the base-band video signal into luminance and chrominance signals with upper and lower black bars; a scan-convertor for up-converting the luminance and chrominance signals with upper and lower black bars into luminance and chrominance signals without upper and lower black bars with as integer conversion ratio; a vertical augmentation signal processor for recovering the vertical augmentation signal; an adder for adding luminance and chrominance signals without upper and lower black bars and the vertical augmentation signal to obtain a wide-screen TV signal with a high vertical resolution; and a display device for displaying the wide-screen TV signal with a high vertical resolution.